Excavator

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

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

Excavator accumulator

The accumulator in heavy-duty cranes is typically manufactured in capacities of 6, 10, 20, and 32 liters, with the ability to withstand working pressures up to 350 bar. It is widely used in the hydraulic systems of cranes such as Liebherr 200–1200 tons lifting capacity and Tadano 100–600 tons. The primary role of the accumulator is to absorb hydraulic shocks, store compressed energy, and provide instant pressure for precise boom movements.

In mobile and all-terrain cranes, the accumulator is essential to prevent pressure drops during repetitive lifting cycles. For example, in a Grove 400-ton crane, a 20-liter accumulator operating at 300 bar can supply the necessary energy to safely move the boom in case of a temporary pump shutdown. This function not only enhances safety but also reduces wear on hydraulic pumps, thereby extending their service life.

Reputable manufacturers such as Hydac Germany, Parker USA, and Olaer France supply bladder- and piston-type accumulators specifically for heavy lifting equipment. Typically, the nitrogen pre-charge pressure is set between 0.9 and 1.0 times the system’s working pressure. Compliance with international standards like ISO 4413 and DIN 4807 during installation and maintenance ensures up to 10 years of service life and improves

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

Excavator and Bulldozer Tooth

Excavator and bulldozer teeth are made of wear-resistant alloy steel with a surface hardness of 50-55 HRC, ensuring long service life under heavy-duty conditions. The weight of the tooth varies between 15 and 35 kg depending on the model, with a length of 400 to 600 mm. The ground contact surface is wear-resistant with a 5 mm heat-treated layer, increasing shear and compressive strength. The conical and blade-like design allows easy penetration into soil, sand, and rock, and the 30-degree mounting angle optimizes shear forces. Attachment to the bucket uses standard bolts and pins, ensuring safety and quick replacement in heavy-duty work sites.

The tooth structure includes stress-relief grooves and lateral reinforcements, providing bending resistance up to 2500 N·m. Corrosion-resistant coating and UV-resistant paint extend the part’s service life. Mounting hole spacing is 120 mm with 25 mm bolt diameter for all standard models. The ergonomic blade design and curved tip reduce fuel consumption and improve excavation efficiency. These features ensure optimal performance, reduced bucket wear, and increased overall durability of heavy equipment.

K3V112 hyundai 210 excavator

Repairing the main pump of a Hyundai 210 excavator, Kawasaki K3V112 model, requires precise inspection of hydraulic components and internal parts. First, the pump must be removed from the system and an initial check for leaks and mechanical damage performed. Then, the shaft, control rings, and vanes are measured with high-precision tools such as micrometers and gauges. In case of corrosion or cracks, components should be replaced according to JIS or ISO standards. Additionally, the pump’s operating pressure must be checked and adjusted to 250 bar with a flow rate of 160 liters per minute to ensure optimal hydraulic system performance.

Replacing high-pressure O-rings and seals must be done carefully to prevent hydraulic leaks. After assembly, the pump is tested on a hydraulic test bench under 250 bar pressure and 50°C oil temperature. Vibration, noise, and oil flow are checked, and any deviations from factory specifications are corrected. This repair process not only extends the pump’s service life but also ensures hydraulic system efficiency reaches up to 95 percent of factory standards.

Excavator Friction Disc

Crane shoe brake pads are made from a combination of organic and mineral materials designed to withstand high pressure and extend service life. Their typical thickness ranges from 12 to 20 millimeters, with a coefficient of friction between 0.35 and 0.48. These pads can endure operating temperatures up to 500 degrees Celsius, and their wear rate is recorded at less than 0.08 millimeters per 1,000 kilometers. The pad structure consists of carbon fibers, phenolic resin, and metal particles, providing optimal mechanical and thermal resistance while preventing thermal cracking.

The compressive strength of crane shoe brake pads reaches up to 28 megapascals, and surface hardness varies between 68 and 82 Rockwell C. Surface groove design enhances ventilation, reducing operating temperature by up to 15 percent. These pads can withstand dynamic forces exceeding 2,000 newtons and maintain stable performance in humid and dusty environments. Their lifespan in heavy industrial crane brake systems is estimated at up to 85,000 braking cycles.

DONALDSON excavator engine air filter

ِDONALDSON excavator engine air filter also known as intake filter has a very high potential to absorb and maintain the particles and contamination of air before being blown into the engine chamber by supercharger. being used in cylindrical shape, DONALDSON engine air filters help increase the life time of engine parts and increase the quality and out put of combustion. intake filters that are used on excavators are used prior to supercharger and DONALDSON is an American brand and a leading manufacturer of this product. using high quality engine air filter helps reduce the accumulation of particles on cylinder head that can in time clog the valves. high durability, high efficiency and high absorption rate is the advantage of DONALDSON excavator engine air filters.

KOMATSU excavator separator filter

KOMATSU excavator is among the most well-known manufacturers of excavators in the world that have high performance and durability. separator filters that are used on KOMATSU excavators help eliminate not only solid particles from the fuel which is gas-oil for most heavy duty machines but also removes liquid drops of water, oil and ..
by removing the liquid drips that is absobed first and stored on the top head cap of the separator filter that can later be discharged, separator filters help KOMATSU excavators have better combustion within the engine and have higher external torque. there are various manufacturers of KOMATSU excavator fuel separator filter including international brands such as FLEETGUARD, DONALDSON, MANN, SAKURA , ...

DONALDSON excavator separator filter

DONALDSON excavator separator filter is in fact a type pf modern fuel filter that is used on diesel engines that consume gas-oil , a type of fossil fuel that usually comes with lots of liquid and solid contamination. DONALDSON separator filters are used at the moment on most construction machines and excavators such as CAT, KOMATSU, VOLVO, HYUNDAI, LIEBHERR, NEW HOLLAND and other construction machines. DONALDSON separator filters can not only absorb and eliminate solid particles such as dust, sand and fumes but also unwanted liquid materials such as water and oil that reduce the combustion temperature. DONALDSON separator filters have a cap on top that help discharge the water and other liquid contamination.

KOMATSU excavator donaldson oil filter

KOMATSU excavator donaldson oil or lube filter is produced in two different designs including the standard design that starts in part number with P and the blue lube filters starting in part number with DBL which stands for donaldson blue lube. the blue filters have higher absorption ability and standard that leads to longer life time. not only DONALDSON lube filters are design for providing the highest efficiency of the engine by eliminating the unwanted particles but they also are produced international environmental standards. Heavy duty components of DONALDSON lube filters for KOMATSU excavators such as baffle pates, springs and can housing are all produced according to the highest standards.

DONALDSON excavator fuel filter

DONALDSON excavator fuel filter that is used on the diesel engines of excavators is produced and used in two different types including the standard type and separator type. standard type of DONALDSON excavator fuel engines can only eliminate the solid contamination such as dust, sand and fumes while the separator filter can also eliminate the unwanted liquid contamination such as water that reduces the combustion temperature and as a result lessens the efficiency of the engine. using fuel filter on the fuel injection of excavators helps increase the life time of engine parts namely piston and liner and avoids the contamination from accumulating on the engine head and clog the valves.

KOMATSU excavator fuel filter

KOMATSU excavator fuel filter that is produced in different brands and in different capacities for all available KOMATSU excavators including PC200, PC220, PC200-5, PC200-6, PC200-7, PC210LC, PC300, PC400-7, PC600 is used in order to eliminate the pollutants that are rampant within Gas-oil prior to being injected into the ignition chamber of KOMATSU excavators. two different types of fuel filters are used on KOMATSU excavators including old generation of fuel filters and water separator filters. KOMATSU excavator filters are available in various brands including DONALDSON, FLEETGUARD and MANN filters.

DONALDSON excavator hydraulic filter

DONALDSON excavator hydraulic filters that are used on construction machinery hydraulic systems such as hydraulic jacks have similar application as engine oil filters but depending on the flow rate and pressure of hydraulic oil they can be used with different capacity and design. in most cases due to the high duty and high load that appears in most excavators, the flow pressure of media in excavator hydraulic filters are higher than that of engine oil filters. DONALDSON excavator hydraulic filters have part numbers starting with P and are available both in white and orange color.

VOLVO excavator hydraulic filter

VOLVO excavator hydraulic filter that is usually used on the hydraulic jack in order to absorb and eliminate small metallic splinters and other pollutants from circulation the hydraulic system. VOLVO excavator hydraulic filter that is assembled on available excavators including EC210, EC240, EC290, EC460 has a very important role to increase the life time of VOLVO excavator hydraulic system parts and is manufactured in various brands including international DONALDSON, FLEETGUARD and MANN brands.

Steel wire rope for excavator

Excavating rope that is used in drilling wells has different sizes and brands that are supplied as spools.
Due to special weather and environmental conditions in drilling, wire rope should be used that has high quality, high strength, high flexibility and high thermal resistance.
As you know the wire ropes are used for drilling that have high flexibility therefore, low-tension wire ropes must be used.

excavator transmission filter

Buying Hyundai, Volvo, Caterpillar, Komatsu, New Holland, Doosan, etc. excavator gearbox filters with different brands is done at Mana Filter. Excavator is the most used type of road construction and mining machinery, which is often used as a chain wheel with a high power gearbox. Excavator gearbox filter is used in Spin-on screw type for easy replacement and often has a long working period.