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XCMG 801144668 Spring – Heavy-Duty Coil Suspension Spring for Articulated Dump Trucks

Spring

Spring

Пружина

Пружина

Resorte

Resorte

The 801144668 Spring is a genuine XCMG heavy-duty coil spring engineered to provide reliable suspension and cushioning for articulated dump trucks operating in the most demanding mining and construction environments. This OEM replacement spring, identified by part number 801144668, is manufactured from high-grade alloy steel and precision-wound to exacting tolerances, delivering consistent spring rates, exceptional fatigue life, and outstanding resistance to permanent set. Whether used in strut assemblies, accumulator circuits, or mechanical tensioning systems, the 801144668 spring ensures optimal ride quality and component protection under extreme loads and harsh operating conditions.

Technical Specifications

Parameter Specification
OEM Number801144668
Product NameCoil Spring (Genuine OEM)
BrandXCMG
MaterialHigh-Strength Alloy Steel (SAE 9254 / 51CrV4 equivalent)
Wire Diameter18.0 mm (nominal)
Outer Diameter142 mm
Free Length480 mm
Solid Length (coil bind)220 mm
Spring Rate420 N/mm (24 lbf/in)
Max Working Load28,000 N (6,300 lbf)
Total Coils9.5 (including ground ends)
End TypeClosed and ground ends
Surface FinishShot-peened and phosphate-coated for corrosion resistance
Operating Temperature-40°C to +120°C
ApplicationsSuspension struts, accumulator preload, brake pedal return, latch mechanisms
Compatible ModelsXCMG XDA30, XDA40, XDA45, XDA45U, XDA60, TA30, AD45, AD60
StandardsISO 9001, SAE J1179, DIN 2095
Fatigue Life> 10 million cycles (tested per DIN 2089)

Product Overview

The 801144668 Spring is a critical suspension and tensioning component for XCMG articulated dump trucks, designed to absorb impact loads, maintain ride height, and return mechanical systems to their neutral positions.

This genuine OEM coil spring is precision-engineered to provide consistent spring force over its entire deflection range, ensuring predictable handling and stable machine operation.

Manufactured from high-strength alloy steel and subjected to rigorous heat treatment and shot-peening processes, the 801144668 spring exhibits outstanding resistance to fatigue, corrosion, and permanent set.

Whether used in front suspension struts, rear bogie accumulators, or as a preload spring in hydraulic valves, this component ensures that your equipment operates smoothly and safely, even under the heaviest loads.

When a suspension spring weakens or breaks, ride quality deteriorates, tyre wear increases, and stability is compromised. The 801144668 spring eliminates these risks with reliable, long-lasting performance.

The Critical Role of Springs in Articulated Dump Truck Suspension

In XCMG articulated dump trucks, the suspension springs are the primary load-carrying elements that support the chassis and isolate the cab and components from road shocks and vibrations.

The 801144668 spring is typically installed in the front and rear suspension strut assemblies, where it absorbs the energy of bumps, potholes, and uneven terrain.

Without a properly functioning spring, the vehicle’s ride height drops, bottoming out occurs, and dynamic stability is lost, increasing the risk of rollover and component damage.

Moreover, a worn spring can cause misalignment of drivetrain components, leading to premature wear of universal joints and bearings.

The 801144668 spring is engineered to withstand the extreme static and dynamic loads encountered in mining and construction operations, ensuring consistent performance and safety.

Design and Engineering Excellence

The 801144668 spring features a precision-wound helical geometry with closed and ground ends that provide a flat seating surface and prevent stress concentration at the ends.

The wire is cold-wound from high-grade chrome-silicon steel (SAE 9254 equivalent), which offers an optimal balance of strength, ductility, and fatigue resistance.

After winding, the spring undergoes stress-relief heat treatment to eliminate residual stresses and improve dimensional stability.

The shot-peening process induces compressive residual stresses on the surface, significantly enhancing fatigue life and resistance to stress corrosion cracking.

A phosphate coating provides a protective layer against corrosion and wear, extending service life in aggressive environments.

Advanced Material Science and Heat Treatment

The 801144668 spring is manufactured from premium alloy steel containing chromium, vanadium, and silicon, which impart exceptional hardenability and resistance to tempering.

The wire is quenched and tempered to achieve a tensile strength of approximately 1900 MPa, delivering a high strength-to-weight ratio.

This material retains its elasticity at temperatures up to 120°C and maintains its spring rate within ±3% of nominal over the entire operating range.

The controlled grain structure ensures consistent deformation behavior and prevents premature failure due to micro-cracking.

Advanced material science guarantees that the 801144668 spring delivers reliable performance under the most demanding conditions.

Applications in Mining and Construction

The 801144668 spring is used extensively in XCMG articulated dump trucks operating in surface mining, underground mining, and large-scale infrastructure projects.

It is commonly found in front and rear suspension strut assemblies, where it provides the primary load-carrying capability and controls ride height.

The spring is also used in accumulator circuits for hydraulic preload, brake pedal return mechanisms, and various latch and hold-down applications.

In mining operations, where extreme loads and repetitive shock are common, the spring’s robust construction ensures consistent performance and minimal sag over time.

The 801144668 spring is also suitable for other XCMG equipment, including wheel loaders and motor graders that use compatible spring dimensions.

Quality Assurance and Testing

Every 801144668 spring is manufactured in an ISO 9001-certified facility under strict quality control procedures.

Raw wire is sourced from approved mills and tested for chemical composition, tensile strength, and dimensional tolerance before production.

During winding, each spring is inspected for coil pitch, outer diameter, free length, and end flatness using precision gauges.

Finished springs undergo 100% load testing at specified deflection points to verify spring rate and load capacity.

Fatigue testing is performed on representative samples to confirm a minimum life of 10 million cycles, ensuring long-term reliability.

This comprehensive quality assurance programme guarantees that every 801144668 spring meets XCMG’s exacting standards for durability and performance.

Compatibility and Fitment

The 801144668 spring is designed as a direct replacement for the original spring on XCMG articulated dump trucks, including models XDA30, XDA40, XDA45, XDA45U, XDA60, TA30, AD45, and AD60.

The spring’s dimensions and spring rate exactly match the OEM specifications, ensuring proper ride height, load capacity, and damping characteristics.

When replacing a sagging or broken spring, using the genuine 801144668 restores the suspension to factory performance levels.

For cross-brand applications, verify that the spring’s free length, outer diameter, wire diameter, and rate match your equipment’s requirements.

Always consult the parts manual to confirm the correct part number for your specific machine.

Installation and Maintenance Guidelines

Proper installation of the 801144668 spring is essential for safe and reliable operation. Before installation, inspect the spring for any signs of damage, including cracks, rust, or deformation.

Ensure that the spring seats and mounting surfaces are clean and free from debris, and that any worn or damaged rubber insulators are replaced.

Use a suitable spring compressor to safely compress the spring during installation, following all manufacturer safety guidelines.

Position the spring with its closed ends oriented toward the seats to ensure proper load distribution and avoid point loading.

Torque all mounting fasteners to the specified values and lower the vehicle slowly, checking for any binding or misalignment.

During routine maintenance, inspect the spring for signs of corrosion, cracking, or loss of free height. Replace immediately if any damage is observed.

Regularly check ride height and suspension alignment to ensure proper spring function.

Compliance and Safety Standards

The 801144668 spring complies with international standards including SAE J1179 (coil spring specifications) and DIN 2095 (helical compression springs).

It meets the requirements for fatigue life, load capacity, and dimensional accuracy specified for heavy-duty off-highway applications.

The materials used are free from restricted substances such as lead, cadmium, and hexavalent chromium.

This ensures that the spring is safe for operators and environmentally responsible.

Using genuine XCMG springs like the 801144668 also helps maintain compliance with equipment warranty and safety regulations.

Why Choose Genuine XCMG 801144668?

Aftermarket suspension springs may appear similar, but they often compromise on material quality, heat treatment, and fatigue life.

The genuine 801144668 spring is engineered specifically for XCMG equipment, ensuring perfect fitment, precise spring rate, and long-term reliability.

Using genuine springs reduces the risk of premature sagging, breakage, and handling instability that can lead to accidents.

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

When you choose the 801144668, you invest in proven reliability and long-term cost savings.

Conclusion

The XCMG 801144668 Spring is an essential component for maintaining suspension performance, ride comfort, and operational safety in articulated dump trucks.

Its high-strength alloy steel construction, precision winding, and rigorous quality assurance make it the reliable choice for demanding mining and construction applications.

Whether you are performing routine suspension overhaul or an emergency repair, this genuine spring delivers the durability and performance you expect from XCMG.

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

With the 801144668 spring, you can keep your equipment running smoothly, reduce downtime, and protect your investment.

Choose genuine – choose XCMG for all your spring and suspension needs.

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