pump

Linde HRR130 hydraulic pump D8N bulldozer

The HRR130 Linde hydraulic main pump installed in the Caterpillar D8N bulldozer is a high-pressure axial piston pump designed for industrial earthmoving applications. Its displacement is 130 cc per revolution, and it can generate pressures up to 350 bar. The pump’s housing is made from hardened steel, while pistons, swash plate, and valve components are precision-machined to minimize internal leakage below 2%. Recommended operating temperature is between -20°C and 95°C, and ISO VG46 hydraulic oil ensures optimal lubrication and performance. The pump features a black protective coating to prevent corrosion in harsh working conditions.

Common causes of HRR130 pump failure include contaminated hydraulic fluid, cavitation due to low suction pressure, piston and cylinder block wear, and valve sticking. High operating temperatures accelerate seal degradation, while improper installation can lead to misalignment and premature bearing failure. Internal leakage reduces flow efficiency, causing the bulldozer’s blade or attachments to operate slower than specified. Vibration and noise often indicate shaft or swash plate wear that requires immediate inspection.

Repairing the HRR130 pump involves complete disassembly, inspection, and measurement of all components. Damaged pistons,

SAUER DANFOSS roller M44 hydraulic pump

The test and repair process of the M44 and M46 main pumps from Sauer-Danfoss is conducted with precise engineering and numerical evaluation. Initially, the pump is removed from the hydraulic system, and a **preliminary inspection for leakage and pressure** is performed. System pressures are measured numerically using a digital pressure gauge for example, the standard inlet pressure is 6–8 bar, while the operating outlet pressure is checked up to 350 bar for the M44 and 400 bar for the M46. Pump flow at 1,500 RPM is measured between 150–165 liters per minute. The **input shaft torque** is evaluated with a torque meter up to 450–500 Nm to ensure proper power transmission.

In the second stage, internal components including the cylinder block, pistons, and swash plate are inspected with precision tools such as digital micrometers and wear gauges. The **maximum allowable deviation for piston diameter and cylinder bore is 0.02 mm**, and any component beyond this tolerance is replaced. O-rings and seals are replaced according to operating pressures of 350–400 bar and flow rates of 150–165 L/min. The drive shaft is tested for torque resistance and wear to ensure stable operation and prevent abnormal vibrations.

The final stage involves pump assembly and **numerical perfor

hyundai excavator 210 swing pump M2X146

The swing pump of the Hyundai 210 excavator, Kawasaki M2X146 model, is an axial piston motor with a swash plate design, engineered for the rotational movement of the excavator’s swing arm. This pump has a displacement of 145.7 cm³ per revolution, a nominal operating pressure of 30 MPa, and a maximum pressure of 37 MPa. Its maximum flow rate reaches 210 liters per minute, and rotational speed is up to 1650 rpm. These specifications enable the pump to deliver a torque of 12,800 Nm while ensuring precise control of the swing movement. The swash plate design and precise pressure and flow control maintain hydraulic system efficiency even under heavy operating conditions.

During repair, the pump is first removed from the hydraulic system and thoroughly cleaned to eliminate any suspended particles or contaminants. The cylinder block, drive shaft, swash plate, pressure plates, and springs are inspected using precision tools such as micrometers and gauges. O-rings, seals, and other consumable components are replaced, and friction surfaces are carefully refurbished. Pump pressure and flow are tested after repair to ensure performance meets factory standards, with no leakage or power loss.

After replacing and repairing damaged components, the pump is reassembled with precise torque

concrete mixer pump PV21

The PV21 and PV23 hydraulic pumps, manufactured by Sundstrand, are axial piston pumps designed for high-reliability operation in concrete mixer hydraulic systems. They can be used in both open and closed circuit systems, providing sufficient flow and pressure for heavy-duty concrete mixing. The PV21 has a displacement of 21 cm³ per revolution, while the PV23 displaces 23 cm³ per revolution. Maximum operating pressures reach 350 bar for PV21 and 360 bar for PV23, with maximum flows of 120 and 130 liters per minute, respectively. Each pump weighs approximately 55–60 kg, and the required input power at operational speed is around 100 kW.

The repair process begins with removing the pump from the hydraulic system and inspecting the housing and external connections for leaks or cracks. The cylinder block, pistons, swash plate, and drive shaft are measured using precision tools such as micrometers and gauges. Worn or damaged components are replaced to restore hydraulic performance and flow to factory specifications. All auxiliary components, including seals and O-rings, are also replaced to minimize leakage and prevent future failures.

After reassembly, the pump undergoes comprehensive performance testing. Operating pressure, output flow, input torque, and noise levels are mea

hyundai 912 pump A8VO55

The main hydraulic pump A8VO55, manufactured by Rexroth, is an axial piston pump with a dual design, used in open-circuit hydrostatic systems. It is applied in Hyundai 912 excavators and Liebherr machinery with the following specifications:

* **Displacement:** 2 × 54.8 cm³ per revolution
* **Maximum operating pressure:** 350 bar
* **Peak pressure:** 400 bar
* **Maximum flow:** 2 × 137 liters per minute
* **Input power at maximum speed:** 160 kW
* **Maximum input torque:** 611 Nm
* **Approximate weight:** 82 kg

These specifications demonstrate the pump’s high capacity to provide the necessary pressure and flow for optimal hydraulic system performance in heavy machinery.

During repair of the A8VO55 pump, it is first removed from the hydraulic system, and all external connections and components are inspected. Precision tools such as micrometers and gauges are used to assess the dimensions and condition of internal parts including pistons, swash plate, cylinder block, and drive shaft. Any worn or damaged components are replaced. After component replacement, the pump is carefully reassembled and subjected to performance testing to ensure pressure, flow, and torque meet factory specifications.

Finally, once proper performance is confirmed, the pump is reinstalled

PVH98 vickers hydraulic pump grader 120

The Eaton Vickers PVH98 hydraulic pump used in Caterpillar 120 graders is a variable displacement axial piston pump designed for high-pressure applications up to 280 bar. Its displacement ranges from 98 to 105 cc/rev depending on the swash plate angle, ensuring precise flow control between 120 and 180 liters per minute. The pump housing is made of high-strength alloy steel to withstand mechanical stress, while pistons and valves are precision-machined to maintain internal leakage below 2%. The PVH98 pump supports operating temperatures between -20°C and 90°C, and it requires ISO VG46 hydraulic oil for optimal performance.

During the repair process, the pump is removed and disassembled, with all components inspected for wear, scoring, or corrosion. Pistons, cylinder blocks, swash plates, and seals are replaced using OEM-certified parts. The shaft and rotor are balanced using dynamic testing to minimize vibration. Pressure and flow control valves are calibrated with high-precision gauges to ensure consistent hydraulic output within ±5% of factory specifications.

After reassembly, the pump undergoes bench testing under simulated load conditions. Flow and pressure are measured at various swash plate angles and temperatures to confirm adherence to technical specifications. Pr

N44 sauer danfoss bobcat pump repair

The repair process of the Bobcat M44 Sauer Danfoss hydraulic travel pump requires precise diagnostic analysis, as the pump operates at pressures up to 350 bar and flow rates near 90 liters per minute. Mechanical wear of pistons, valve plates, or bearings can reduce volumetric efficiency by more than 15 percent, leading to significant loss of travel power. Early symptoms often include unusual vibration, high oil temperature exceeding 85°C, and reduced response time in forward or reverse drive cycles.

Common causes of hydraulic pump failure in the Bobcat M44 include oil contamination above ISO 18/16/13 levels, cavitation due to improper suction line sizing, and overheating caused by insufficient cooling. Even a 10 µm particle entering the pump chamber can damage the swash plate surface, reducing service life by over 30 percent. Preventive maintenance such as oil filtration checks, seal inspection, and pressure relief valve calibration is critical for extending operational hours.

Repair costs for a Bobcat M44 Sauer Danfoss travel pump vary from 1,200 to 2,500 depending on the extent of component replacement, labor, and testing procedures. A full rebuild may require up to 12 working hours, including disassembly, precision lapping of valve plates, piston shoe replacement, and

forklift hydraulic pump rexroth repair

The Rexroth A10VSO hydraulic pump is an axial piston pump with variable displacement, commonly used in open-circuit hydraulic systems such as forklifts. These pumps are available in displacement ranges from 18 to 140 cm³/rev, providing flow rates between 59 and 252 liters per minute with a maximum operating pressure of 280 bar. Depending on the model, the pump speed ranges from 1,800 to 3,300 rpm. The swash plate design and compact construction ensure low noise operation and long service life, making it suitable for heavy-duty, high-frequency applications.

Repairing the A10VSO pump requires precision and technical expertise. The process typically begins with initial inspection, identifying issues such as pressure drop, unusual noise, vibration, or oil leakage. The pump is then disassembled following safety protocols, and internal components including pistons, swash plate, bearings, shaft, and O-rings are carefully inspected for wear or damage. Cleaning of all components and replacement of worn parts with original or equivalent-quality components is critical for restoring performance.

Finally, the pump is reassembled with precise adjustments, including setting the swash plate angle. A comprehensive performance test is conducted to verify flow rate, pressure output, and smoo

Ferguson tractor hydraulic pump repair

Repairing the hydraulic pump of a Massey Ferguson 285 tractor is a highly specialized process that requires mechanical knowledge and precise tools. The pump is responsible for transmitting hydraulic oil pressure to the system, and any malfunction can reduce the efficiency of lifting arms and agricultural implements. Common failure symptoms include oil leakage, sudden pressure loss, and unusual noise during operation. Identifying these signs early and performing timely repairs prevents further damage to other hydraulic components.

During the repair of the Massey Ferguson 285 hydraulic pump, the internal parts such as gears, O-rings, and valves must be carefully inspected. Cleaning the components from oil residues and metallic deposits is essential, as contamination can cause wear and shorten the pump’s service life. Using high quality hydraulic oil that complies with the specifications of the Massey Ferguson tractor ensures reliable performance, especially under demanding working conditions.

After replacing or repairing the worn components of the Massey Ferguson 285 hydraulic pump, the system must be properly bled. Air bleeding prevents the formation of bubbles in the hydraulic circuit, ensuring smooth cylinder operation. A final performance test, including measuring the o

KOMATSU excavator pc300 swing pump

The swing pump of the Komatsu PC300-7 excavator is a precision hydraulic unit responsible for supplying oil to the swing motor of the upper structure. This pump is a gear-type design with a volumetric capacity of approximately 45 to 55 liters per minute and an operating pressure of 280 bar. The housing is made of alloy steel with a hardness of 210 to 230 Brinell, ensuring excellent wear and fatigue resistance. Its drive shaft is supported by rolling bearings with a diameter of 45 millimeters for stability and durability.

In terms of type, the Komatsu PC300-7 swing pump operates as an internal gear hydraulic unit that directs oil into the swing motor circuit through the rotation of its driving gear. Heat-resistant O-rings capable of withstanding up to 120 degrees Celsius prevent leakage under high pressure. The pump achieves a volumetric efficiency greater than 92 percent under standard conditions, which ensures smooth and precise swing system performance during heavy-duty excavation tasks.

The repair process of the swing pump involves complete disassembly of the housing, inspection of the gears for wear or micro-cracks, and measurement of radial clearance with a feeler gauge. If the clearance exceeds 0.08 millimeters, gear replacement becomes necessary. Bearings and seals m

Concrete machine hydraulic pump repair

The REXROTH A4VG concrete mixer boom hydraulic pump is an axial piston variable displacement type, capable of adjusting flow according to load requirements. Its nominal power reaches up to 75 kW, and flow rate ranges between 50 and 180 liters per minute. Maximum operating pressure is 350 bar, and oil temperature is controlled between 40 and 70 degrees Celsius under standard conditions. This pump supplies hydraulic force to lift cylinders and mixer rotation and requires precise monitoring of pressure, flow, and operating temperature.

The repair process includes complete disassembly of the pump body, inspection of the shaft and bearings, and checking pistons and gears. O-rings, seals, and gaskets are commonly replaced. Internal and external leakage tests, volumetric flow measurement, and output pressure verification are performed before and after repair. Adjusting the swashplate angle for accurate flow is essential. Using precision tools and hydraulic test equipment reduces repair errors to less than 2 percent.

Consumable parts include pistons, swashplate, shaft bearings, O-rings, and high-pressure washers. Repair costs depend on part condition and usually range between 25 and 40 percent of the new pump price. After reassembly, the pump is tested at standard pressures of 250�

Casappa hydraulic pump repair

The hydraulic pump of the backhoe loader brand CASAPPA is one of the key components of the hydraulic system, responsible for supplying the required flow and pressure of hydraulic oil. These pumps are usually gear or piston type, with flow capacities ranging from 60 to 120 liters per minute and operating pressures between 180 and 250 bar, providing high efficiency in energy transmission. The precise gear design and optimized sealing system significantly improve performance, reduce leakage, and increase the overall service life of mechanical components.

The main reasons for CASAPPA hydraulic pump failure are oil contamination, cavitation, overload, or high operating temperatures. Early signs of malfunction include pressure drops, unusual noise, and reduced cylinder movement speed. Continued operation with a damaged pump can lead to severe issues in valves and control systems, which drastically increase the overall repair costs. Timely maintenance and oil monitoring are essential to minimize these risks.

Repairing a CASAPPA hydraulic pump typically involves disassembly, inspection of internal wear surfaces, checking seals, and replacing O-rings and bearings. In cases of major damage to gears or pistons, replacement of main components becomes necessary. Repair costs usually ran

Komatsu PC400-6 travel pump repair

The travel hydraulic pump of the Komatsu PC400-6 excavator is an axial piston pump with variable displacement, specifically designed to supply the required traction force. Its operating pressure is approximately 320 bar, and the flow rate ranges between 180 to 220 liters per minute. The drive shaft, with a diameter of 50 millimeters, is supported by rolling bearings, while the pump body is constructed from high-strength alloy steel with superior wear resistance. Precision-engineered oil channels and internal valve plates minimize internal leakage and maintain volumetric efficiency above 90 percent.

Pump performance is highly influenced by operating pressure and hydraulic oil condition. A flow rate drop below 160 liters per minute or a pressure loss exceeding 15 percent indicates piston wear, bearing damage, or valve plate issues. Excessive oil temperature above 85 degrees Celsius can damage O-rings and cause internal leakage. Unusual vibration and knocking noise during movement are also key indicators of travel pump malfunction.

The repair process involves complete disassembly, careful inspection of pistons, valve plates, and bearings, and replacement of worn or damaged components. After cleaning and reassembly, bolts are tightened to specified torque values, and the pump i

Komatsu PC400-7 main pump repair

The main hydraulic pump of the Komatsu PC400-7 excavator is a variable displacement axial piston pump, commonly identified by part numbers such as 708-2H-00027, 708-2H-00026, and 708-2H-00022. This pump is designed to deliver high volumetric flow rates and operate under high-pressure conditions, ensuring efficient power transmission for the excavators hydraulic system.

In terms of specifications, the pump typically operates at a maximum pressure of approximately 370 bar 5,365 psi and provides a flow rate around 690 liters per minute L/min. These parameters are crucial for the optimal performance of the excavators functions, including arm, boom, and swing operations.

The repair process for this hydraulic pump involves several critical steps to ensure its proper functioning:

Disassembly: Carefully remove the pump from the excavator, taking precautions to avoid damage to connected components.

Inspection: Thoroughly examine the pump for signs of wear, corrosion, or damage, focusing on components such as pistons, cylinder block, and swashplate.

Cleaning: Clean all parts using appropriate solvents to remove any contaminants that could affect performance.

Component Replacement: Replace any worn or damaged components with OEM parts to maintain the pumps integrity and pe

PVH131 Vickers pump repair

The Vickers PVH131 hydraulic pump used in the Caterpillar 140G grader is an axial piston variable displacement pump designed for operating pressures up to 300 bar. The pump flow ranges between 131 and 145 cc per revolution, providing hydraulic output with ±5% accuracy. Its housing is made from high-strength steel, and pistons, swash plate, and valves are precision-machined to ensure internal leakage below 2%. The recommended operating temperature range is -20 to 90°C, and ISO VG46 hydraulic oil is advised for optimal performance.

Common failures in PVH131 pumps arise from piston wear, cylinder block scoring, swash plate degradation, or valve clogging. Contaminated fluid or delayed oil replacement can reduce flow, increase internal pressure, and damage rings and O-rings. Shaft or bearing failure is another frequent cause of reduced performance and severe vibration in the 140G grader hydraulic system.

During specialized repair, the pump is fully disassembled, and all components are inspected for wear, corrosion, or damage. Damaged parts are replaced with OEM components, and the shaft and rotor are dynamically balanced. Pressure and flow control valves are recalibrated, and the pump is tested under simulated load conditions. Flow, pressure, and temperature measurements confi

A4SO and A10VSO rexroth pump repair

The Rexroth A4SO and A10VSO hydraulic pumps used in industrial press machines are axial piston pumps with variable displacement. They operate at pressures of 250 to 320 bar and flow rates from 20 to 350 liters per minute. The housing is made of hardened steel, and internal components are precision-machined to reduce wear and leakage. Seal rings and O-rings ensure stable performance at temperatures between 30°C and 90°C. The design allows for rapid replacement of internal components, minimizing downtime and ensuring consistent machine operation.

The main causes of failure include wear of pistons and cylinders, damaged O-rings, contamination of hydraulic oil, and operation under excessive pressure. Internal leakage reduces efficiency and output flow. Using hydraulic oil with incorrect viscosity or contaminated oil shortens pump lifespan. Malfunctioning control valves and pressure relief valves can also disrupt industrial press operation, necessitating specialized repair.

The repair process involves disassembling the pump, inspecting, and replacing pistons, cylinders, and O-rings. After component replacement, pressure and flow tests are conducted to ensure optimal performance. In severe cases, the housing may be rebuilt or shafts and bearings replaced. All replacement parts

KAWASAKI M5X130 pump repair

Hydraulic travel pumps for the Hyundai 210 excavator, Kawasaki models M5X180 and M5X130, are axial piston motors with swash plate design. These motors are engineered for precise and stable rotational performance in excavators. The M5X180 model has a displacement of 180.1 cm³ per revolution, nominal pressure of 32.4 MPa, maximum pressure of 39.2 MPa, maximum speed of 1680 rpm, maximum flow of 240 liters per minute, and maximum torque of 16,500 Nm. The M5X130 model has a displacement of 129.2 cm³ per revolution, similar nominal and maximum pressures, maximum speed of 1850 rpm, maximum flow of 240 liters per minute, and maximum torque of 13,400 Nm.

During repair, the pump must first be removed from the system and all components carefully inspected. Parts such as the cylinder block, swash plate, drive shaft, spring plate, pressure plate, separator plate, friction plate, and O-ring kit should be examined and replaced if necessary. Using original or high-quality components is essential to maintain motor performance and longevity.

When reassembling, all components must be installed with precision using accurate measurement and adjustment tools. After assembly, the motor should undergo performance testing to ensure that technical specifications such as pressure, flow, and torque

CAT12G grader hydraulic pump

The CAT12G G120 grader hydraulic pump is a radial piston variable displacement pump with an operating pressure typically between 280 and 320 bar. The pump consists of a rotor, pistons, control valves, and pressure relief components, accurately regulating oil flow within ±5%. Under normal operation, the pump flow ranges from 140 to 180 liters per minute, and oil temperature should not exceed 90°C. Repairs require specialized hydraulic tools and flow/pressure calibration equipment to maintain the manufacturer’s technical specifications.

During the repair process, the pump is removed from the grader, and all components are inspected for wear, scoring, and corrosion. Pistons, rings, and seals are replaced with OEM-standard parts to reduce internal leakage below 2%. The shaft and rotor undergo vibration and balance testing to minimize noise and vibration. Control and pressure valves are tested with precise gauges to ensure smooth, stable flow.

After reassembly, the pump is tested under real pressure and flow conditions. Flow measurements at 75–85°C must stay within ±5 bar of the factory specification. Proper repair extends service life up to 8,000 hours and reduces oil consumption and hydraulic system wear. Routine maintenance every 500 operating hours, including pressur

Roquet hydraulic pump repair

The Roquet hydraulic pump in backhoe loaders is usually of the gear or piston type, with a nominal flow rate of 60 to 120 liters per minute and a working pressure of 250 to 320 bar. These pumps are made of wear-resistant steel alloys and cast iron housings, which enhance service life and minimize deformation under cyclic loads. The internal design includes hardened gears or precisely machined pistons, assembled with tolerances of less than 5 microns.

In terms of mechanical performance, the Roquet pump can deliver stable power to the boom and bucket cylinders, achieving a volumetric efficiency above 92 percent. Ball bearings with a hardness of 60 HRC and seals made of NBR O-rings resistant to temperatures up to 120°C are used. Vibration levels under full load remain below 1.5 mm/s, reflecting the precision of the pump’s engineering.

Maintenance of Roquet hydraulic pumps in backhoe loaders involves checking gear or piston wear, controlling internal leakage, and replacing worn O-rings. If output flow decreases to less than 80 percent of the rated capacity, a 280-bar pressure test is required to determine efficiency loss. To extend pump life, it is recommended to replace the hydraulic filter every 2000 working hours and use standard ISO VG 46 oil. Employing original Roquet s

Danfoss diesel pump model BFP21L5

The Danfoss diesel pump model BFP21L5 is an advanced and efficient fuel supply unit designed for oil burners, widely used in industrial and commercial heating systems. This single-stage gear pump features a left-hand rotation and is built with corrosion-resistant alloys and hardened steel components to ensure durability and long-term reliability. Its design allows it to withstand high operating pressures while improving the overall efficiency of the heating system. With a quiet operation, easy-to-service structure, and integrated safety features, the BFP21L5 is engineered for dependable performance in demanding environments.

From a technical standpoint, the BFP21L5 pump can generate a working pressure of up to 25 bar and offers an adjustable flow rate to match the needs of the system. It includes a built-in solenoid valve that enables precise control of diesel flow, preventing overfeeding or irregularities in fuel delivery. The internal filter is designed to block fine particles from entering and damaging sensitive components of the pump. Another key advantage of this model is its compatibility with electronic burner controllers, enhancing system synchronization and operational safety. Due to its high durability, energy efficiency, and solid engineering, the BFP21L5 is a smart

D155 Komatsu hydraulic pump repair

The hydraulic pumps in Komatsu bulldozer models D65, D85, and D155 are critical components that convert mechanical engine power into hydraulic energy, enabling efficient operation of the dozers blade, steering, and other functions. These pumps are typically piston-type, offering high efficiency and durability under demanding conditions.
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For instance, the Komatsu D65PX-18 model is equipped with a piston-type hydraulic pump delivering a discharge flow of 248 liters per minute 65.5 U.S. gallons per minute at rated engine RPM. The relief valve setting is calibrated to 27.9 MPa approximately 4,050 psi, ensuring optimal pressure regulation within the hydraulic system. This configuration supports the Closed-Center Load Sensing System CLSS, which provides precise and responsive control for efficient simultaneous operations.
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Similarly, the Komatsu D85-18 model features a piston-type hydraulic pump with a discharge flow capacity of 331 liters per minute 87.4 U.S. gallons per minute at rated engine RPM. The relief valve is set at 22.6 MPa approximately 3,270 psi, facilitating the CLSS for enhanced operational efficiency. These specifications ensure that the hydraulic system can handle the high demands of the dozers operations, provid

HEPCO bulldozer hydraulic pump repair

The hydraulic pump of a HEPCO bulldozer functions as the core of the hydraulic system, responsible for supplying the required pressure to cylinders and the steering unit. These pumps are typically axial piston type with variable displacement control, operating at pressures between 280 and 320 bar and delivering a flow rate of 120 to 180 liters per minute. The precise design of the shaft and internal seals ensures longer service life and minimizes hydraulic leakage.

For repairing the HEPCO bulldozer hydraulic pump, pressure and flow tests should first be carried out to verify performance accuracy. If pressure drops more than 15% or the flow rate falls below the nominal value, a complete disassembly of the pump is required. Careful inspection of piston surfaces, valve plates, and bearings is crucial, since wear beyond 0.05 mm indicates the need for part replacement.

During the repair process, after cleaning and replacing O-rings and seals, all moving parts must be measured with calipers and micrometers for precision. Reassembly requires the use of special hydraulic assembly grease and tightening bolts to the recommended torque range of 70 to 120 Nm. Finally, leakage and pressure tests under real load conditions must be performed to ensure the proper function of the HEPCO bull

Danfoss diesel pump model BFP21L3

The Danfoss diesel pump model BFP21L3 is a powerful and reliable component designed for fuel supply systems in oil burners, widely used in industrial and commercial heating applications. This gear-type pump operates in a single-stage configuration and typically features a left-hand rotation. Its construction includes a durable shaft, precision-engineered gears, and a corrosion-resistant alloy housing that ensures long-lasting performance under harsh working conditions. The modular design of the pump allows for easy disassembly and maintenance, and its flexible configuration makes installation in a wide range of systems straightforward.

From a technical perspective, the BFP21L3 pump is capable of delivering a working pressure of up to 25 bar, making it suitable for consistent and stable fuel feed in burner systems. Its flow rate can be adjusted based on system requirements, and it features an integrated solenoid valve for precise fuel flow control. With low power consumption and a quiet operation design, this pump enhances energy efficiency while minimizing the need for frequent maintenance. An internal filter helps prevent the entry of impurities, and compatibility with burner controllers adds to its functionality—making the BFP21L3 a reliable and efficient choice for heatin

DAYTON SS304 steel pump

This stainless steel pump, manufactured as a three-phase unit with a maximum power of 2 horsepower, is used for transferring fluids with moderate corrosiveness at high volumes and flow rates. The electric motor connected to the stainless steel 304 pump by DAYTON is either of NEMA type with an IEC frame and operates on DC power at a voltage of 208-230/460 volts.

This series of stainless steel pumps has a maximum suction lift of 7.6 meters. From a fluid mechanics perspective, the maximum suction capability for the most powerful pump at sea level is 10 meters, with a maximum discharge head H of 68 feet. Since this stainless steel pump is centrifugal, the highest head is achieved at the lowest flow rate, which in this case is 24 gallons per minute GPM.

Naturally, at lower pumping heights, the volumetric capacity of the stainless steel grade 304 pump increases, reaching a flow rate of 130 GPM at the minimum head of 5 feet. Mechanical seals made of carbon or stainless steel minimize leakage in this pump series. The inlet valve is threaded and flange-free with a 1 1/2 inch size, allowing for high suction and discharge flow rates.

Due to its considerable flow rate and stainless steel construction, which minimizes chemical reactions with liquids, this pump is widely used in food

Komatsu PC300 excavator main pump

The main hydraulic pump of the Komatsu PC300 excavator is typically an axial piston pump with a variable swashplate design, capable of delivering high operating pressure. This pump provides a flow rate of approximately 2×240 liters per minute at a rated working pressure of 320 bar, supplying the necessary power for boom, arm, and swing operations. Its dual-circuit configuration increases efficiency and minimizes pressure losses in heavy-duty hydraulic systems.

The head of the PC300 main pump is generally set between 280 and 320 bar, with a maximum pressure capacity up to 350 bar. The internal design includes hardened steel pistons with a diameter of around 22 to 24 millimeters, operating at a rotational speed of 1800 to 2000 RPM. Precision sealing within the cylinder block reduces internal leakage, ensuring a volumetric efficiency greater than 90 percent.

The repair process of the PC300 hydraulic pump involves complete disassembly, inspection of pistons and the cylinder block, and replacement of worn components. Common failure signs include wear on piston shoes and sliding plates. After reconditioning or replacement, reassembly must be performed with specified torque values, followed by calibration on a hydraulic test bench at 300 bar pressure and 240 liters per minute flo

KATO crane hydraulic pump repair

The sale and repair of hydraulic pumps for KATO cranes, especially models using Uchida pumps, require high technical expertise. These pumps, such as A10VD43SR and AP2D36, are used in heavy-duty KATO cranes like the HD307 and NK1200. Sourcing these parts from reputable international suppliers such as Alibaba and Made-in-China is feasible. To ensure quality and authenticity, selecting suppliers with proven track records and positive customer reviews is recommended.

For repairing Uchida hydraulic pumps, companies like Hydraulex and Rexton Hydraulic provide specialized services. These companies use experienced technicians and advanced equipment to rebuild faulty pumps according to OEM standards. Hydraulic pump repair demands precision and technical experience to maintain optimal crane performance. If local services are unavailable, shipping the pump to these centers can be a suitable option.

For spare parts supply and repair services in the Middle East, collaborating with official KATO dealers or reputable companies in neighboring countries like the UAE and Saudi Arabia is advisable. These companies typically have access to original parts and specialized technical support. For further consultation or detailed information, contacting these authorized representatives is recommend

CNC hydraulic pump repair

Repairing a gear-type hydraulic pump for a CNC cutting machine involves disassembling the housing, inspecting gear and shaft wear, and replacing pressure O-rings. Common pump codes include PV2R, PVM, and GPV, which operate reliably in CNC connections under 140–210 bar pressure. ISO VG 46–68 hydraulic oil is typically used to reduce wear and maintain pump precision. Inspecting seals and gaskets prevents internal leakage and pressure drops. Adjusting gear clearance and checking bearings extends pump life up to 5000 operating hours. The pressure gauge on the outlet line should show less than a 5-bar deviation from the manufacturer’s standard.

Consumable parts include gears, shafts, O-rings, and high-pressure seals, usually made from steel with 55–60 HRC hardness. Common failures include gear wear, shaft corrosion, and seal cracking. During repair, thorough oil flushing and debris inspection are essential. Operating pressure should be 120–210 bar with a volumetric flow of 20–60 liters per minute within ±3% accuracy. Shaft vibration above 0.5 mm indicates imbalance and requires realignment. Pump operating temperature should not exceed 75°C.

Rexroth A10VSO hyudraulic pump repair

Repairing the Rexroth A10VSO hydraulic pump starts with complete disassembly of the housing, rotor, pistons, and control plate. Each component is measured with 0.05 mm precision to detect wear or deformation. Pistons, springs, and tappets are inspected for cracks, erosion, or fatigue. Worn seals, O-rings, and washers are replaced to ensure zero leakage. Cleaning uses hydraulic-grade solvent, followed by drying in dust-free conditions. Disassembly also involves documenting part numbers for accurate replacement and verifying all tolerances against Rexroth specifications.
During assembly, the rotor is aligned within the housing, and the rear plate is adjusted to maintain 40–50 MPa nominal operating pressure. Shaft torque and preload are carefully calibrated. Flow rate and volumetric efficiency are tested at 2200–2500 rpm on a calibrated test bench. Common operational issues include low pressure, internal leakage, or excessive noise. Addressing these faults requires precise replacement of worn pistons, springs, or the rear plate and realignment of internal components to prevent premature failure.

KAWASAKI K3V pump repair

The Kawasaki K3V main hydraulic pump for Zoomlion excavators is an axial piston variable displacement type. Its flow rate ranges from 150 to 250 liters per minute, with a working pressure up to 350 bar. The pump drive power is typically 110 to 180 kW, and its volumetric efficiency is around 92 percent. Maximum operating pressure of 320 bar and hydraulic oil temperature between 40–80°C define its standard operating range. This pump powers the boom, arm, and swing systems and can withstand impact loads up to 20 percent of nominal pressure.

Repair involves disassembling the pump body, inspecting the swash plate, pistons, bearings, and internal valves. Consumable parts include pistons, O-rings, high-pressure washers, shaft bearings, and the swash plate. Internal leakage, abnormal noise above 75 dB, and flow reduction over 15 percent indicate pump failure. Standard repair costs about 25–40 percent of a new pump and includes full mechanical and hydraulic rebuilding. Inspections every 500 operating hours and replacing hydraulic oil with 46–68 mm²/s viscosity extend pump lifespan.

DAYTON 3 phase SS pump

This stainless steel pump is a centrifugal type that operates with a three-phase electric motor. The high flow rate output of this stainless steel pump, along with a moderate head, makes it an ideal choice for the food industry and beverage manufacturing plants. The three-phase stainless steel pump by DAYTON is designed for continuous operation and can also function as a submersible pump.

This centrifugal stainless steel pump has a power rating of 1.5 horsepower and is commonly manufactured using 316-grade stainless steel for enhanced corrosion resistance. The operating voltage of this stainless steel pump is 208-230/460 volts, drawing a current of 6.6-7.0/3.3 amps from the system.

With a maximum pumping head of 65 feet, this pump uses a TEFC Totally Enclosed Fan Cooled electric motor. The maximum flow rate output varies depending on the discharge head: it can pump 116 gallons per minute GPM at a height of 5 feet, 50 GPM at 45 feet, and 13 GPM at 60 feet.

The motor speed of this series of stainless steel pumps is 3450 RPM, operating at a frequency of 60 Hz.

AXFLOW food grade pump

This stainless steel pump, designed and manufactured with high capability for pumping large volumes of fluids and suitable for food-grade consumable liquids in the food industry, is branded AXFLOW and is also known as a sanitary stainless steel pump. The use of high-grade stainless steel, which has minimal chemical reaction with food-grade acids, makes this pump ideal for the food industry with a maximum flow rate capacity of 600 cubic meters per hour m³/h.

The maximum fluid head for this food-grade stainless steel pump by AXFLOW is 150 meters, and it operates at a maximum pressure of 15 bar. The use of single mechanical seals, which can be easily replaced during routine maintenance, is another positive feature of this pump.

One of the most important advantages of this AXFLOW stainless steel pump for food industry applications is its ability to create a smooth flow with minimal turbulence and low vibration during operation. The internal impellers of this centrifugal stainless steel pump are of the open type and made from 316-grade stainless steel.

Volvo L150E loader hydraulic pump repair

The Volvo L150E loader hydraulic pump is a critical and complex component for optimal machine performance. It is a variable displacement piston pump with a load-sensing system that adjusts flow and pressure according to demand. The pump delivers a flow rate of approximately 47.6 gallons per minute about 180 liters per minute, and its relief valve is set to 3626 psi around 250 bar.

During repair of the L150E hydraulic pump, the system pressure must first be fully released. The pump is then removed using appropriate tools, and its internal components are inspected. Worn parts such as pistons, valves, and O-rings are replaced if necessary, and after reassembly, the pump undergoes functional testing to ensure proper operation.

Replacement parts for the L150E hydraulic pump can be sourced from reputable suppliers like FridayParts. Compatible part numbers include VOE11709023 and VOE15068638, which also fit models L150F, L180E, L180F, and L220D. Using genuine parts ensures reliability, efficiency, and longevity of the hydraulic system.

volvo loader L90 rexroth hydraulic pump repair

Repairing the Volvo L90 A10VSO hydraulic pump begins with fully disassembling the housing and removing the rotor, pistons, and rear plate. Rotor and main shaft surfaces are measured with 0.05 mm precision to detect wear or misalignment. Pistons and springs are inspected and replaced if cracked, worn, or broken. All seals and O-rings are replaced to prevent hydraulic leaks. Components are cleaned with specialized hydraulic solvent, dried, and prepared for reassembly.
Assembly starts with precise installation of the rotor in the housing and alignment of the rear plate. Shaft torque and preload are adjusted to achieve 40–50 MPa operating pressure. Flow rate and volumetric efficiency are measured on a test bench at 2200–2500 rpm. Common issues include excessive noise, reduced output pressure, and internal leakage, which are resolved by replacing worn parts and accurate shaft alignment.

D8 caterpillar bulldozer hydraulic pump

The hydraulic pumps in Caterpillar D6, D8, D9, D10, and D11 bulldozers are predominantly variable displacement axial piston pumps. These pumps are designed to deliver high efficiency and adaptability under varying load conditions. For instance, the D8 model features a hydraulic pump output of approximately 248 L/min 65.5 gal/min at an engine speed of 2,000 rpm. The system operates under a maximum pressure setting of 32,500 kPa 4,714 psi, ensuring optimal performance and safety during operation.

Regular maintenance is crucial to ensure the longevity and efficiency of these hydraulic pumps. Caterpillar recommends using genuine Cat hydraulic fluids and filters, as well as adhering to the S•O•SSM Services for fluid analysis. Contamination control is vital therefore, using clean fluids, specialized tools, and certified repair processes is essential.

Tavantech Submersible Sewage Pump

Tavantech submersible sewage pumps are among the top domestic brands in Iran, known for their engineered design and high build quality. These pumps have earned a strong position in the market due to their reliability and efficiency.

General Specifications of Tavantech Submersible Sewage Pumps:

Pump Type: Submersible

Application: Transfer of wastewater, contaminated water, sludge, and liquids containing solid particles

Motor Power: From 0.75 to 3 horsepower depending on the model

Discharge Size: 2-inch and 3-inch outlets

Body Material: Wear-resistant cast iron or stainless steel

Impeller Type: Semi-open or open, suitable for passing solids

Maximum Submersion Depth: Up to 10 meters

Cooling System: Water-cooled

Voltage Options: Single-phase and three-phase

Stream SWQ Submersible Sludge Pump

The Stream SWQ series submersible sludge pump is designed with a wear-resistant cast iron body and is suitable for transferring wastewater containing solids up to 45 mm in diameter. These pumps are available in single-phase and three-phase models with power ratings from 0.55 to 22 kW, making them suitable for various applications including residential, industrial, and mining wastewater removal. The maximum flow rate reaches up to 630 cubic meters per hour, and the maximum pumping head is 45 meters. The pumped liquid temperature should be between 0 and 40 degrees Celsius, and the maximum operating pressure is 6 bar. These pumps feature a two-channel impeller with excellent hydraulic performance and a silicon carbide mechanical seal, ensuring long service life and trouble-free operation.

Clutch Pump Bearing for MVM 530

The MVM 530 clutch pump bearing is typically manufactured according to international standards ISO 492 and DIN 625, ensuring dimensional accuracy, material quality, and reliable performance. Additionally, this bearing is tested for resistance against vibration and mechanical shocks to deliver optimal performance in the power transmission system.

The technical specifications of the MVM 530 clutch pump bearing include standard dimensions of 25x52x15 millimeters, a chromium-alloy steel construction with anti-corrosion coating, deep groove type with double-sided seals, high load capacity, and long service life. These features make this component highly optimized from an engineering perspective and crucial for the proper functioning of the vehicles clutch system.

Used Sludge Pump

Used Sludge Pump: A Cost-Effective Solution for Heavy-Duty Fluid Transfer

A used sludge pump is an economical option for transferring heavy fluids, industrial wastewater, and suspended solids in construction, agricultural, and wastewater treatment projects. If you
e looking for a budget-friendly sludge pump that still delivers reliable performance, refurbished and pre-owned models can be a smart choice.

For those seeking a high-quality used sludge pump with guaranteed performance, its essential to carefully review technical specifications, usage history, and brand reputation. A well-informed purchase can reduce maintenance costs and improve overall pumping efficiency. For expert advice and the latest price list, feel free to contact our sales specialists.

Pompiran submersible sewage pump

Pompiran submersible sewage pumps are one of the smartest choices for pumping heavy and contaminated fluids in industrial and urban environments. These pumps, known for their high build quality, long service life, and high reliability, play an important role in the efficiency of wastewater and treatment systems.

Pompiran sewage pumps are categorized into different types based on installation method and impeller design:

Vertically mounted Pompiran sewage pump

Horizontally mounted Pompiran sewage pump

Pompiran sewage pump with open impeller

Pompiran sewage pump with semi-open impeller

If you are looking to buy a high-quality Iranian sewage pump, Pompiran products can be a reliable and cost-effective option.

LOWARA DOMO Series Submersible Sewage Pump

Purchasing the LOWARA DOMO series sewage pump, made in Italy with high quality, can significantly improve efficiency and reduce operational costs. The LOWARA DOMO sewage pump, with the following features, is an ideal choice for many projects:

High durability under tough working conditions

Ability to pass large solid particles without clogging

Energy-efficient performance

Quick and easy installation without the need for special equipment

For purchasing and getting the latest price quote of the LOWARA sewage pump from Italy, please contact our experts.

Vacuum pump oil filter

Vacuum pump oil filters are usually used for purifying paraffin base oild that circulate within vacuum pumps and therefore should have the filtration size of 1 micro meter. as opposed to engine oils that have plenty of additives, most vacuum pump oil filters are dealing basically with anti-oxidation, anti corrosion and sometimes fumes. the working pressure and application of oil filters for vacuum pumps is between 0.007 PSI equivalent to 0.5 bar and up to 29 PSI equivalent to 2000 mbar. these oil filters operate well in temperature between -20 to 90 degrees C.

Navid Sahand Submersible Sewage Pump

Various types of Navid Sahand sludge pumps are available for purchase based on the type of fluid, pumping capacity, working pressure, and outlet pipe diameter. Some of the available models include:

Submersible sludge pumps

Chopper pumps for breaking down solid materials

Three-phase and single-phase sludge pumps

Explosion-proof sludge pumps suitable for hazardous environments

For up-to-date pricing, expert technical consultation, and help choosing the most suitable Navid Sahand sludge pump model, contact our specialists today.

Stainless steel pump

Stainless steel pumps are manufactured from grade 316 or 316L and offer a very long service life. These steel pumps come in a variety of designs, most commonly centrifugal pumps. The steel construction contains chromium and nickel elements, which provide excellent corrosion resistance. However, in terms of operating pressure, stainless steel pumps do not match the capabilities of steel-bodied pumps and have lower tensile strength. Import and supply of various stainless steel pumps are available.

Ebara DVS Series Sludge Pump

The Ebara DVS series sludge pumps, due to their unique design and the materials used, can easily pump heavy fluids containing solid particles. These pumps are primarily designed for use in harsh working conditions and for transferring sludge, industrial wastewater, and municipal sewage.

High power and efficiency

Resistance to corrosion and abrasion

Ability to handle large solid particles

Easy installation and maintenance

Stream SWVSD Sludge Pump

The Stream SWVSD sludge pump delivers high performance in transferring thick and contaminated fluids.
The Stream SWVSD sludge pump is one of the most advanced industrial devices for moving thick fluids, sludge, and industrial and municipal wastewater. With its wear-resistant tank design and variable speed control system VSD, this pump has gained a prominent position in the water and wastewater, mining, and chemical industries.