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XCMG 804051606 Gear Pump – Reliable Hydraulic Power Source for Articulated Dump Trucks

Gear Pump

Gear Pump

Шестеренный насос

Шестеренный насос

Bomba de engranajes

Bomba de engranajes

The 804051606 Gear Pump is a genuine XCMG high‑performance hydraulic pump engineered to deliver reliable, high‑pressure fluid power for steering, braking, and implement circuits on articulated dump trucks. This OEM pump, identified by part number 804051606, features precision‑machined cast‑iron housing, hardened steel gears, and high‑quality needle bearings that ensure exceptional volumetric efficiency, low noise, and long service life under extreme operating conditions. Designed for the most demanding surface and underground mining, quarrying, and construction applications, the 804051606 gear pump provides consistent flow and pressure, making it a critical replacement component for maintaining hydraulic system performance, machine productivity, and operational reliability in the toughest environments.

Technical Specifications

Parameter Specification
OEM Number804051606
Product NameGear Pump (Genuine XCMG)
BrandXCMG
Pump TypeExternal gear pump, fixed displacement
Displacement (cm³/rev)32 cm³/rev (nominal)
Maximum Operating Pressure250 bar (3625 psi)
Continuous Working Pressure200 bar (2900 psi)
Maximum Speed (rpm)3000 rpm
Nominal Speed2200 rpm
Flow Rate (at 2200 rpm)70 L/min (approx.)
Volumetric Efficiency≥ 92% at rated pressure
Housing MaterialHigh‑strength cast iron (GGG40)
Gear MaterialHardened steel, ground and lapped
Shaft TypeSplined shaft (SAE J744, 11T 16/32)
Inlet Port ThreadG 1″ BSPP
Outlet Port ThreadG 3/4″ BSPP
Mounting TypeSAE 2‑bolt flange
Rotation Direction (viewed from shaft end)Clockwise (standard), counter‑clockwise available
SealsNitrile (NBR) shaft seal, temperature‑resistant
Operating Temperature (fluid)-20°C to +90°C
Fluid CompatibilityMineral oils (HLP, HVLP), synthetic hydraulic fluids
Viscosity Range10 – 400 mm²/s
Filtration RequirementISO 4406 18/16/13 or better
Compatible ModelsXCMG XDA30, XDA40, XDA45, XDA45U, XDA60, TA30 articulated dump trucks; also suitable for wheel loaders, excavators, and motor graders with compatible hydraulic systems
StandardsISO 9001, ISO 14001, SAE J745, CE, RoHS compliant
Weight (approx.)7.8 kg

Product Overview

The 804051606 Gear Pump is a robust hydraulic power source that converts mechanical input into fluid flow, providing the energy required for steering, braking, and implement functions on XCMG articulated dump trucks.

This genuine XCMG pump is designed to deliver consistent, high‑volume flow at pressures up to 250 bar, ensuring reliable operation under heavy loads and demanding cycles.

Its cast‑iron housing and hardened steel gears are precision‑machined to provide tight clearances that maximise volumetric efficiency and minimise internal leakage.

The pump’s robust construction, combined with high‑quality needle bearings, ensures long service life even in high‑vibration mining environments.

This component is a direct OEM replacement, restoring the original hydraulic flow and pressure characteristics of the machine.

Regular inspection of the pump for leakage, noise, and pressure output is essential for maintaining hydraulic system performance.

The Critical Role of Gear Pumps in Hydraulic Systems

Gear pumps are the heart of hydraulic systems on heavy equipment, converting mechanical power from the engine into hydraulic fluid power to actuate cylinders, motors, and valves.

The 804051606 gear pump is engineered to provide a constant flow rate proportional to input speed, making it ideal for open‑centre hydraulic circuits commonly used in mining and construction equipment.

Reliable pump performance is critical for precise steering control, responsive braking, and efficient implement operation – all essential for safe and productive machine use.

A worn or damaged pump can cause loss of power, slow response, and increased fuel consumption, leading to costly downtime.

Replacing a failing pump with a genuine XCMG unit restores the original performance and reliability of the hydraulic system.

Design and Engineering Excellence

The 804051606 gear pump is engineered with a focus on high pressure capacity, low noise, and long service life.

The precision‑ground gears are manufactured from hardened steel with a special tooth profile that reduces flow pulsation and noise, providing smooth hydraulic operation.

The housing incorporates pressure‑balanced bushings that compensate for axial forces, reducing wear on the gears and extending pump life.

Low‑friction needle bearings support the shafts, allowing high speeds and loads while maintaining radial alignment and minimising friction losses.

The pump body is designed for easy installation with standard SAE 2‑bolt mounting and port configurations, ensuring compatibility with existing hydraulic systems.

All components are manufactured to tight tolerances to ensure consistent performance and interchangeability with original equipment.

Advanced Materials and Corrosion Protection

The 804051606 gear pump is constructed from materials selected for their ability to withstand the harsh conditions of mining and construction.

The cast‑iron housing provides excellent strength, rigidity, and damping properties, reducing noise and vibration while resisting impact damage.

The gears are made from case‑hardened steel with a ground and lapped finish that ensures a perfect meshing surface, minimising internal leakage and wear.

The drive shaft is induction‑hardened and precision‑ground, providing a durable interface for the coupling and resisting fatigue from cyclic loading.

All external surfaces are treated with a corrosion‑resistant coating to protect against rust and chemical attack in aggressive underground and surface environments.

Applications in Mining and Construction

The 804051606 gear pump is a critical component on XCMG articulated dump trucks, providing hydraulic power for steering, braking, suspension, and dump body hoist functions.

It is also used on wheel loaders, excavators, and motor graders that share similar hydraulic system requirements, making it a versatile replacement part across multiple equipment types.

In surface mining, the pump must deliver consistent flow under continuous heavy loads, while in underground mining, it must resist dust, moisture, and confined‑space heat build‑up.

The pump’s robust design ensures reliable operation in all these conditions, minimising downtime and maintaining productivity.

Its compatibility with standard hydraulic fluids and filters simplifies maintenance and reduces inventory costs.

Quality Assurance and Testing

Every 804051606 gear pump is manufactured in an ISO 9001 and ISO 14001 certified facility, with full traceability of raw materials and production processes.

Incoming castings and gear blanks are inspected for metallurgical composition, hardness, and dimensional accuracy.

During assembly, each pump is tested on a dedicated flow bench to verify volumetric efficiency, pressure characteristics, and noise levels.

A 100% pressure test is conducted at 1.5 times the maximum working pressure to ensure structural integrity and leak‑free performance.

Samples from each batch are endurance‑tested for over 1000 hours at rated pressure and speed to validate durability.

Only pumps that meet all performance criteria are released, guaranteeing consistent quality and reliability.

Compatibility and Fitment

The 804051606 gear pump is a direct replacement for the original pump on XCMG articulated dump trucks, including XDA30, XDA40, XDA45, XDA45U, XDA60, TA30, and many other models.

It is also compatible with various XCMG wheel loaders, excavators, and motor graders that use the same pump mounting and port configurations.

The SAE 2‑bolt mounting flange and standard port threads ensure a straightforward installation without modifications.

For cross‑brand applications, verify that the displacement, pressure rating, and mounting dimensions match your system requirements.

Always consult your machine’s parts manual to confirm the correct part number before ordering.

Installation and Maintenance Guidelines

Replacing the 804051606 gear pump requires mechanical skills and standard tools. Always depressurise the hydraulic system and clean the work area before starting.

Disconnect the inlet and outlet lines, and cap the ports to prevent contamination. Remove the mounting bolts and carefully detach the old pump.

Inspect the drive shaft and coupling for wear; replace if necessary. Apply a thin film of clean hydraulic oil to the new pump’s shaft seal and mounting surfaces.

Install the new pump on the mounting bracket, ensuring the shaft aligns correctly with the coupling. Tighten the mounting bolts to the recommended torque (40‑50 N·m).

Reconnect the hydraulic lines, ensuring they are free from twists and sharp bends. Fill the pump with clean hydraulic fluid through the outlet port before connecting the final line to prime the pump.

Start the engine and run at low speed for a few minutes to purge air from the system. Check for leaks and listen for unusual noise.

During routine maintenance, inspect the pump for leakage, excessive noise, or pressure loss. Replace the pump immediately if any abnormalities are detected.

Compliance and Safety Standards

The 804051606 gear pump complies with SAE J745, which specifies performance and test methods for hydraulic gear pumps.

It is manufactured in accordance with ISO 9001 quality management and ISO 14001 environmental standards.

The pump is CE marked and RoHS compliant, meeting international safety and environmental regulations.

Using genuine XCMG pumps ensures compliance with original equipment safety and performance specifications, protecting both the machine and the operator.

Always replace faulty pumps with genuine parts to maintain hydraulic system safety and reliability.

Why Choose Genuine XCMG 804051606?

Aftermarket gear pumps often use inferior castings, softer gears, or low‑grade bearings that lead to premature wear, leakage, and reduced efficiency.

The genuine 804051606 pump is engineered to XCMG’s exacting specifications, ensuring the correct displacement, pressure rating, and mounting fit.

Its high‑quality materials and precision manufacturing deliver long, reliable service life, reducing replacement frequency and maintenance costs.

Genuine XCMG parts preserve warranty coverage and maintain the resale value of your equipment.

Choose genuine XCMG for performance, reliability, and peace of mind.

Conclusion

The XCMG 804051606 Gear Pump is a critical hydraulic component that ensures reliable fluid power delivery on articulated dump trucks and heavy equipment.

Its robust construction, precision‑machined gears, and high‑quality bearings deliver consistent performance in the harshest mining and construction environments.

By replacing worn or damaged pumps with genuine XCMG parts, you restore hydraulic system performance, reduce downtime, and protect your investment.

Always source genuine XCMG components from authorised dealers to guarantee authenticity and quality.

Choose the 804051606 gear pump for dependable hydraulic power and lasting value.

Invest in genuine XCMG – your partner in performance and reliability.

Hot Sale Genuine XCMG Articulated Dump Truck Parts

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