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Volvo loader L90 and L120 starter

The starter system of the Volvo L90 wheel loader is engineered to deliver high cranking torque under heavy duty operating conditions. It typically uses a 24 volt electrical system with a heavy duty DC starter motor rated between 5.5 and 7.0 kW. The pinion drive engages a hardened steel ring gear with a module optimized for diesel compression ratios above 17:1. Cold cranking performance is stabilized through dual series connected batteries with a combined capacity near 180 to 220 Ah. The solenoid actuated engagement mechanism is designed for more than 30000 start cycles under normal maintenance conditions. Reinforced copper windings and high temperature insulation class F improve thermal resistance during repeated start attempts. You can order and buy volvo loader ignition starter from Iran.

In the Volvo L120 loader, the starter assembly is calibrated for higher displacement diesel engines generating greater internal resistance during compression. Output power commonly ranges from 7.0 to 9.0 kW to ensure reliable engine turnover in ambient temperatures down to minus 20 degrees Celsius. The overrunning clutch protects the armature from overspeed once the engine fires and exceeds starter rotational speed. Gear reduction architecture improves torque multiplication while reducing c

Rotary Group

The KMF/KPV rotary group is a combined axial piston pump and radial motor system with variable displacement. Its monoblock housing is cast from EN-GJS-600 ductile iron with 600 MPa tensile strength. The pump section KPV uses hardened 20MnCr5 steel with 7 axial pistons and a secondary pressure control system. The motor section KMF is designed from 16MnCr5 steel with 5 radial pistons and a high-pressure mechanism. An intelligent hydraulic control system manages both sections simultaneously with 40-millisecond response. This assembly withstands 300 bar continuous operating pressure and 350 bar peaks under ISO 3 class. The pumps nominal flow reaches 90 liters per minute at 1800 RPM. The motors output torque at 250 bar pressure equals 180 Newton-meters.

The control structure utilizes two independent proportional valves with CAN BUS interface and embedded pressure sensors. A shared cooling system includes a plate heat exchanger and independent lubrication circuits for each section. The combined output shaft is manufactured from nitrided 34CrNiMo6 steel with dual ISO 14 spline connections. The hydraulic oil operating temperature range for the entire system is defined between -25°C to +110°C. Generated noise level at full load and one-meter distance measures maximum 74 decibels. A d

ROSSI EP Series planetary gearbox

The ROSSI EP Series planetary gearbox is one of the most advanced industrial power transmission systems, featuring a multi-stage planetary design and extremely high efficiency. It delivers output torque up to approximately 45,000 Nm, with gear ratios ranging from 3.5 to 1000 depending on configuration. The mechanical efficiency exceeds 97 percent, ensuring stable performance even at high speeds. The housing is made of nickel-chromium alloy steel, heat-treated for superior resistance to fatigue and dynamic loads. The symmetrical gear arrangement allows uniform force distribution and minimal vibration under continuous operation. Its internal lubrication system, either circulating or splash type with integrated filtration, reduces wear and extends component lifespan.

The ROSSI EP Series gearbox incorporates high-load-capacity roller bearings and multi-stage seals to prevent oil leakage and contamination. It supports horizontal, vertical, and flange-mounted configurations and is compatible with IEC standard motors up to 200 kW. The operating temperature range extends from -30 to +100 degrees Celsius, with a nominal noise level below 68 dB. Depending on model, the net weight ranges from 180 to 950 kilograms. Certified under CE, ISO 9001, and ATEX standards, the EP Series gearbox is

Rotary Group

The HPR rotary group is a radial piston pump/motor with variable displacement and advanced electro-hydraulic control. Its main housing is machined from EN AC-42100 T6 aluminum alloy with 320 MPa yield strength. The cylinder block is designed from hardened 34CrMo4 steel with 7 radial pistons and coated needle roller bearings. The control system utilizes an electro-hydraulic servo valve with 20-millisecond response and 0.15% positioning accuracy. This unit manages 400 bar continuous operating pressure and 450 bar peaks per ISO 4 standards. Nominal flow reaches 120 liters per minute at 1800 RPM and maximum displacement. Volumetric efficiency under rated conditions is 97% with 93% overall efficiency.

The intelligent control structure includes an Electronic Control Module ECM with CANopen interface and programmable profiles. An integrated thermal management system with an oil-water heat exchanger and variable flow control operates continuously. The output shaft is manufactured from 42CrMo4 steel with a Titanium Nitride TiN coating for wear resistance. The hydraulic fluid operating temperature range is defined between -30°C to +120°C. Generated noise level at nominal pressure and one-meter distance measures below 70 decibels A-weighted. A filtration system rated at 10 microns with

Oil-Inject Rotary Screw Compressors

Oil-injected screw compressors utilize duplex 2205 steel alloy for heavily loaded rotors. An asymmetric 5+6 helical profile is precision-machined onto male and female rotors with 0.001 mm geometric accuracy. Their air delivery capacity spans 22 to 355 kW, equivalent to 3.2 to 65 m³/min at 7-15 bar working pressure. The oil injection system operates at 4-6 bar pressure with 0.8 to 12 L/min flow rate. Discharge air temperature is maintained within 10°C above ambient via an intelligent temperature control system. Nominal volumetric efficiency reaches 94%, with isothermal efficiency up to 68%. A smart PID controller optimizes specific energy consumption below 0.11 kW per cubic meter.

The core structure features a GG30 grade cast iron housing with integrally cast cooling fins. A four-stage oil separation system cyclone and coalescing reduces oil concentration below 2 ppm. An intelligent piston-type capacity regulator controls flow with 0.7-second response time and 0.1% positioning accuracy. Shell-and-tube heat exchangers with aluminum fins provide 85% heat transfer efficiency. A forced lubrication system with 3-micron filtration and dedicated cooler extends oil life to 8,000 hours. Advanced acoustic design achieves 65-70 dB sound pressure level at 1 meter distance. The complete p

K3V ROTARY GROUP

The K3V rotary group is a dual axial piston pump with variable swashplate and independent capacity control system. Its main housing is cast from high-strength compacted graphite iron FCD700. The cylinder assembly uses hardened SCM440 steel with 9 pistons arranged in two independent circuits per block. A two-stage hydraulic control system independently adjusts each pumps capacity from zero to 100%. This unit withstands 350 bar continuous operating pressure and 400 bar peaks per JIS B 8352 standard. Combined nominal flow at 2000 RPM reaches 280 liters per minute with ±2% tolerance. Each sections volumetric efficiency under rated conditions is 95.5% with 91% overall efficiency.

The control structure includes two pressure regulators with 30-millisecond response and an intelligent flow divider valve. An integrated cooling system with a spiral heat exchanger and automatic temperature control operates continuously. The input shaft is manufactured from surface-hardened SNCM439 steel with a JIS B 1603 fine spline connection. The hydraulic oil operating temperature range is defined between -20°C to +105°C. Generated noise level at nominal pressure and one-meter distance measures maximum 76 decibels. The unit is equipped with pressure, temperature, and speed sensors providing analog a

HPV ROTARY GROUP

The HPV rotary group is an axial piston pump with a variable swashplate and independent pressure control system. Its main housing is cast from EN-GJS-800-8 ductile iron with 800 MPa tensile strength. The cylinder block is designed from hardened 31CrMoV9 steel with 11 axial pistons and a slipper pad mechanism. The electro-hydraulic control system EHR adjusts the swashplate angle from -2 to +40 degrees with 0.02-degree accuracy. This pump withstands 420 bar continuous operating pressure and 480 bar peaks per ISO 6 pressure class. Nominal flow reaches 250 liters per minute at 2200 RPM and maximum angle. Volumetric efficiency under rated conditions is 97.8% with 93.5% overall efficiency.

The control structure features an independent Power Unit PPU with 10-millisecond response and programmable profiles. An integrated Energy Management System IEMS reduces power consumption by up to 20% versus conventional designs. The input shaft is manufactured from carbonitrided 39NiCrMo16 steel with an ISO 16 class spline connection. The hydraulic oil operating temperature range is defined between -50°C to +140°C. Generated noise level at nominal pressure and one-meter distance is below 65 decibels A-weighted. An advanced cooling system with a two-stage oil-water heat exchanger and variable flo

Rotary Group

The HPV rotary group is an axial piston pump with a variable swashplate and independent pressure control system. Its main housing is cast from EN-GJS-800 ductile iron with 800 MPa tensile strength. The cylinder block is designed from hardened 31CrMoV9 steel with 11 axial pistons and a slipper pad mechanism. The electro-hydraulic control system EHR adjusts the swashplate angle from -2 to +40 degrees with 0.02-degree accuracy. This pump withstands 420 bar continuous operating pressure and 480 bar peaks per ISO 6 pressure class. Nominal flow reaches 250 liters per minute at 2200 RPM and maximum angle. Volumetric efficiency under rated conditions is 97.8% with 93.5% overall efficiency.

The control structure features an independent Power Unit PPU with 10-millisecond response and programmable profiles. An integrated Energy Management System IEMS reduces power consumption by up to 20% versus conventional designs. The input shaft is manufactured from carbonitrided 39NiCrMo16 steel with an ISO 16 class spline connection. The hydraulic oil operating temperature range is defined between -50°C to +140°C. Generated noise level at nominal pressure and one-meter distance is below 65 decibels A-weighted. An advanced cooling system with a two-stage oil-water heat exchanger and variable flow

HPR130 ROTARY GROUP

The HPR130 rotary group is a radial piston pump/motor with variable displacement and advanced electro-hydraulic control. Its main housing is machined from EN AW-7075 T651 aluminum alloy with 500 MPa yield strength. The cylinder block is designed from hardened 34CrAlNi7 steel with 7 radial pistons and needle roller bearings. The control system utilizes a two-stage servo valve with 15-millisecond response and 0.1% positioning accuracy. This unit manages 450 bar continuous operating pressure and 500 bar peaks per ISO 5 standards. Nominal flow reaches 130 liters per minute at 2000 RPM and maximum displacement. Volumetric efficiency under rated conditions is 98% with 94% overall efficiency.

The intelligent control structure includes an independent Processing Unit IPU with CAN BUS interface and J1939 protocol. An integrated cooling system with a plate heat exchanger and PID temperature control operates continuously. The output shaft is manufactured from maraging steel 300 with a WC/C Tungsten Carbide/Carbon coating. The hydraulic fluid operating temperature range is defined between -40°C to +130°C. Generated noise level at nominal pressure and one-meter distance measures below 68 decibels A-weighted. A dual filtration system with 5 and 15-micron ratings and an online contamination

Oil-Inject Rotary Screw Compressors

The screw compressor consists of male and female rotors made from AISI 4140 forged steel with hard chrome plating. Rotor profile machining accuracy is within 0.005 mm with 0.03 to 0.08 mm clearance between them. Air delivery capacity ranges from 2.2 to 400 kW, equivalent to 0.35 to 70 cubic meters per minute. Standard working pressure is 7 to 13 bar, extendable to 20 bar in special designs. The oil injection system operates at 0.5 to 8 L/min flow rate with 40-90°C operating temperature. Volumetric efficiency is 88-94% with overall energy efficiency reaching 90%. Sound pressure level at one meter varies between 62 to 78 decibels. A digital PID controller monitors operating parameters with 0.1% accuracy.

The main structure features a GG25 cast iron housing with 15-40 mm wall thickness and integrated cooling fins. The dual cooling system includes oil-air and separate compressed air aftercoolers. A three-stage oil separator with 99.9% efficiency reduces oil content to 3 ppm. The capacity regulator uses slide valve or piston type with under 2-second response time. A two-stage intake air filter removes particles larger than 5 microns. Static and dynamic balancing design maintains vibration below 4.5 mm/s. Piping connections are hydrostatically tested for 25 bar pressure. Bearing an

KVC ROTARY GROUP

The KVC rotary group is an axial piston pump with a variable swashplate and two-stage capacity control. Its main housing is cast from JIS FCD500 ductile iron with 500 MPa tensile strength. The cylinder block is designed from hardened SCM435 steel with 7 axial pistons and a slipper pad mechanism. A mechanical-hydraulic two-stage control system adjusts pump capacity at 50% and 100% displacement levels. This pump withstands 280 bar continuous operating pressure and 320 bar peaks per JIS B 8351 standard. Nominal flow reaches 75 liters per minute at 1650 RPM and maximum capacity. Volumetric efficiency under rated conditions is 94.5% with 89% overall efficiency.

The control structure includes a spring-loaded pressure regulator and a hydraulic pilot valve with 150-millisecond response. The lubrication system operates via positive displacement with an internal gear pump and 30-micron filter. The input shaft is manufactured from carburized SNCM220 steel with a JIS B 1603 class spline connection. The hydraulic oil operating temperature range is defined between -15°C to +90°C. Generated noise level at nominal pressure and one-meter distance measures maximum 72 decibels. The housing is protected by an electrostatic epoxy-polyester coating 60 microns thick. The design service life until

Rotary Group

The LPVD rotary group is an axial piston pump with variable swashplate and low-pressure control Low Pressure Variable Displacement. Its main housing is produced via high-pressure die casting from A380 aluminum alloy with 320 MPa tensile strength. The cylinder block is designed from hardened 16MnCr5 steel with 9 axial pistons and a slipper pad mechanism. The control system utilizes a direct hydraulic valve with an adjustable pressure range of 20 to 80 bar. This pump withstands 160 bar continuous operating pressure and 200 bar peaks per ISO 1 class. Nominal flow reaches 60 liters per minute at 2500 RPM and maximum angle. Volumetric efficiency under rated conditions is 94% with 88% overall efficiency.

The control structure includes a spring-loaded pressure regulator with 100-millisecond response and an internal check valve. The lubrication system operates via splash from an internal sump with a 25-micron filter. The input shaft is made from surface-treated Ck35 steel with a standard spline pin connection. The hydraulic oil operating temperature range is defined between -10°C to +70°C. Generated noise level at nominal pressure and one-meter distance measures maximum 68 decibels. The housing is protected against corrosion by a hard anodized coating 20 microns thick. The design se

A11VSO ROTARY GROUP

The A11VSO rotary group is an axial piston pump with a variable swashplate and automatic pressure control. Its main housing is cast from EN-GJS-700 ductile iron with 700 MPa tensile strength. The cylinder block is designed from hardened 20MoCr4 steel with 9 axial pistons and a slipper pad mechanism. An electro-hydraulic pressure control system LRDS continuously adjusts the swashplate angle from 0 to 28 degrees. This pump manages 350 bar continuous operating pressure and 420 bar peaks per ISO 4 class. Nominal flow reaches 145 liters per minute at 1800 RPM and maximum angle. Volumetric efficiency under rated conditions is 96% with 92% overall efficiency.

The control structure includes a two-wire proportional valve with 25-millisecond response and analog pressure feedback. An integrated Load Sensing LUDV system optimally distributes flow based on multiple actuator demands. The input shaft is manufactured from carburized 39NiCrMo3 steel with an ISO 13 class spline connection. The hydraulic oil operating temperature range is defined between -30°C to +110°C. Generated noise level at nominal pressure and one-meter distance is maximum 73 decibels A-weighted. An internal cooling system with an oil-air heat exchanger and 10-micron filter operates continuously. The design service life

Volvo excavator starter

The starter in Volvo excavators of the EC210, EC240, and EC460 series is a critical component of the engine starting system, specifically designed for the unique needs of these machines. These starters are typically 24-volt DC electric motors that provide high power and fast cranking capability. Designed to perform reliably under harsh operating conditions, such as low temperatures or high pressure, Volvo starters are built to endure. The use of advanced technologies in their design ensures longer service life and reduced need for frequent maintenance. Furthermore, these starters are integrated with electronic systems and voltage regulators to prevent damage to the electrical system and optimize performance.

The proper functioning of the starter in Volvo excavators EC210, EC240, EC460 depends on several factors, with battery health and the charging system being critical. Typically, the starter delivers over 300 amps during the initial engine cranking. Starter failures can occur due to issues such as damaged windings, worn-out brushes, or faulty relay connections. Symptoms of a faulty starter include a lack of engine turnover, clicking sounds from the starter, and failure to start the engine. Regular monitoring of the starter system and preventive maintenance can significantly

4 star conveyor belt

The 4-star conveyor belt is among the most durable models designed for heavy-duty industrial applications under harsh operating conditions. This belt features a multilayer structure with four plies of polyester-nylon EP 125 to EP 250 fabric, cross-reinforced with abrasion-resistant rubber. The total thickness ranges from 8 to 14 millimeters, and the maximum allowable tensile strength reaches up to 1600 Newtons per millimeter of belt width. Its dry tensile strength is measured at up to 25 MPa, while in humid conditions it remains around 18 MPa. The top surface can be either smooth or patterned such as Chevron or Rough Top to prevent load slippage on inclined surfaces.

The operating temperature range for the 4-star conveyor belt spans from -30 to +120 degrees Celsius, with special models rated up to 150 degrees. This belt offers strong resistance to mineral oils, industrial grease, and surface abrasion from sharp particles. In abrasion loss testing according to ISO 4649, volume loss remains under 120 mm³. It supports continuous industrial use at speeds up to 4.5 meters per second. Common applications include mining operations, cement plants, power stations, and steel manufacturing industries. The bottom layer is typically made from tear-resistant and flame-retardant rubber comp