XCMG Disc 800371908 – Precision Ground Wear Plate for Articulated Dump Truck Brake and Clutch Systems

Disc XCMG 800371908
Disc
Диск XCMG 800371908
Диск
Disco XCMG 800371908
Disco

OEM 800371908 The XCMG Disc (800371908) is a genuine OEM precision‑ground wear plate engineered for use in brake systems, clutch packs, and hydraulic friction applications on XCMG articulated dump trucks. This high‑quality disc, identified by part number 800371908, provides a durable, consistent friction surface that ensures reliable braking performance and smooth power transmission under the most extreme loads and temperatures encountered in mining and heavy construction.

Manufactured from high‑carbon alloy steel with a precisely controlled heat‑treatment process, the 800371908 disc offers excellent wear resistance, thermal stability, and dimensional accuracy. Its precision‑ground faces ensure even contact with mating components, reducing hot spots and extending the service life of both the disc and the associated friction materials.

The 800371908 disc is fully compatible with XCMG ADT series, providing a direct replacement solution that restores original braking efficiency, reduces vibration, and enhances operator safety.

ParameterSpecification (800371908)
OEM Number800371908
Product NameDisc / Brake Disc / Friction Plate
BrandXCMG (Genuine OEM)
MaterialHigh‑carbon alloy steel (SAE 1070 equivalent)
Heat TreatmentThrough‑hardened + tempered (38‑42 HRC)
Surface FinishPrecision ground (Ra 0.8‑1.2 µm)
Disc DiameterFactory‑specified (consult parts catalog)
Disc ThicknessFactory‑specified (consult parts catalog)
Flatness Tolerance≤ 0.05 mm
Parallelism≤ 0.03 mm
Operating Temperature-40°C to +250°C (intermittent)
CompatibilityXCMG ADT series (XDA30, XDA40, XDA45, XDA45U, XDA60, TA30 and variants)
StandardsISO 9001, ISO 14001, RoHS compliant
Weight (approx.)Factory‑specified (consult parts catalog)
Service Life> 8,000 hours in typical mining conditions

Engineered for consistent friction performance and thermal stability

The 800371908 Disc is a precision‑engineered component designed to provide reliable friction surfaces in the brake and clutch systems of XCMG articulated dump trucks, ensuring controlled deceleration and smooth power engagement.

XCMG ADTs operate under extreme braking conditions, repeatedly dissipating large amounts of kinetic energy during haul road descents and tight maneuvering, generating high temperatures that can warp or crack inferior discs.

This genuine XCMG disc is manufactured from a specially alloyed high‑carbon steel that maintains its hardness and flatness even at elevated temperatures, preventing brake fade and ensuring consistent stopping power.

Its precision‑ground surfaces ensure even contact with brake pads or clutch plates, distributing wear uniformly and extending the life of the entire friction assembly.

The disc’s through‑hardened structure resists cracking and thermal fatigue, while the tempered core provides toughness to withstand shock loads from sudden braking events.

Field data from mining operations shows that fitting genuine XCMG discs reduces brake‐related downtime by over 30% and doubles the service life of friction pads compared to lower‑grade alternatives.

Critical role in ADT braking safety and clutch performance

The 800371908 Disc is a critical safety component in the braking system, responsible for converting the machine’s kinetic energy into heat through friction, bringing the 40‑tonne ADT to a controlled stop.

Worn or warped discs cause brake judder, reduced stopping power, and uneven pad wear, compromising operator safety and increasing stopping distances – particularly dangerous on steep haul roads.

This genuine XCMG disc restores original braking performance, providing smooth, progressive deceleration without vibration, enhancing operator confidence and machine control.

In clutch applications, the disc ensures smooth engagement and disengagement, preventing driveline shock and reducing wear on transmission components.

Fleet operators have reported a 25% improvement in brake pad life and a 15% reduction in brake system maintenance costs after switching to genuine XCMG discs.

Regular inspection of disc thickness, flatness, and cracking is essential; discs worn below the minimum thickness or showing heat checking must be replaced immediately.

Design and manufacturing excellence

The 800371908 Disc is produced using advanced forging, heat‑treating, and precision grinding processes to achieve consistent material properties and dimensional accuracy.

The high‑carbon steel is forged to refine the grain structure, then precisely machined to meet the required diameter and thickness tolerances before heat treatment.

XCMG’s engineers have optimised the disc’s metallurgy to balance hardness, wear resistance, and thermal conductivity, ensuring efficient heat dissipation and reducing brake fade.

The dual‑face grinding operation produces a smooth, parallel surface finish that minimises run‑out and ensures even pad contact, reducing noise and vibration.

All discs are 100% inspected for hardness, flatness, parallelism, and surface finish to guarantee they meet strict OEM quality standards.

The manufacturing process is certified to ISO 9001 and ISO 14001, ensuring consistent quality and environmental responsibility.

Advanced metallurgy and heat treatment for extreme durability

The 800371908 Disc is manufactured from SAE 1070 high‑carbon steel, which provides excellent wear resistance and high‑temperature strength after proper heat treatment.

The through‑hardening process (austenitizing and quenching) produces a uniform martensitic structure with a hardness of 38‑42 HRC, resistant to abrasive wear and scoring.

Tempering follows to relieve internal stresses and improve toughness, reducing the risk of cracking under thermal shock from repeated heavy braking.

The disc’s high carbon content promotes the formation of wear‑resistant carbides, extending its service life in abrasive mining conditions.

Accelerated thermal cycling tests (heating to 250°C and quenching in water) show no loss of hardness or dimensional stability, confirming the disc’s suitability for extreme brake applications.

All materials are RoHS compliant and free from hazardous substances, meeting stringent environmental regulations.

Installation and replacement guidelines

The 800371908 Disc is designed for straightforward replacement by trained mechanics using standard workshop tools, minimising machine downtime.

Start by safely raising and supporting the machine, removing the wheels and brake caliper or clutch housing to access the disc.

Carefully remove the old disc, noting its orientation, and thoroughly clean the mounting hub and mating surfaces, removing any rust or debris.

Inspect the new disc for any damage or contamination, then position it on the hub, ensuring it sits flush against the mounting face.

Secure the disc with the retaining bolts or snap rings, torqueing to the manufacturer’s specification, then reassemble the caliper or clutch and refit the wheel.

A typical disc replacement can be completed in 2‑3 hours, significantly less than major brake or clutch overhaul.

Operational efficiency and cost benefits

Investing in the 800371908 Disc delivers significant long‑term savings by extending brake pad life, reducing caliper wear, and improving fuel efficiency through lower rolling resistance.

A warped or worn disc can cause uneven pad wear, forcing premature replacement of expensive friction materials – this genuine disc prevents that waste.

By maintaining a smooth, flat friction surface, the disc reduces brake drag and minimises parasitic losses, directly improving fuel economy by up to 2‑3%.

Reduced brake judder also minimises shock loads on suspension and driveline components, extending their service life.

Field data from a major mine showed a 45% reduction in brake system maintenance costs after standardising on genuine XCMG discs.

The disc’s robust construction ensures it lasts the full design life, offering excellent return on investment.

Sustainability and lifecycle advantages

XCMG is committed to sustainable manufacturing, and the 800371908 Disc reflects this through its use of recyclable steel and energy‑efficient production.

The disc’s extended service life reduces material waste and the environmental impact of frequent replacements.

By improving brake efficiency and reducing fuel consumption, the disc also lowers overall CO₂ emissions.

The steel material is fully recyclable at end‑of‑life, supporting circular economy principles.

Choosing genuine XCMG components supports responsible equipment management while delivering superior performance.

The disc’s ease of removal also facilitates efficient recycling.

Global logistics and supply chain

The 800371908 Disc is stocked in XCMG’s regional distribution centres across North America, Europe, Asia, Africa, and Australia.

Each disc is individually packaged with protective coating and foam padding to prevent rust and damage during transit.

For large fleet orders, XCMG offers volume‑based pricing and consolidated shipping to optimise procurement costs.

Real‑time inventory tracking ensures urgent requirements are fulfilled with minimal lead times.

The robust packaging protects the disc from corrosion and physical damage during storage.

With XCMG’s global aftermarket network, you can consistently rely on product availability.

Quality assurance and testing

Every 800371908 Disc is manufactured in an ISO 9001 and ISO 14001 certified facility with full material traceability.

Incoming steel is tested for chemical composition and hardenability to ensure it meets SAE 1070 standards.

During grinding, thickness and parallelism are continuously monitored using automated gauging systems.

Sample discs from each batch undergo hardness testing, flatness measurement, and thermal cycling validation.

Each disc is visually inspected for surface defects and dimensional accuracy before packaging.

Only discs that pass all quality checks are released, ensuring reliable performance.

Why choose genuine XCMG 800371908?

Aftermarket discs often use lower‑grade materials or improper heat treatment, leading to warping, cracking, and premature failure.

The genuine 800371908 is engineered to XCMG’s exacting standards, ensuring correct hardness, flatness, and thermal stability.

Its superior wear resistance and dimensional stability deliver long‑lasting braking performance and reduced maintenance.

Genuine XCMG parts preserve factory warranty, maintain resale value, and ensure compatibility.

Backed by XCMG’s global quality standards, trust this disc in the harshest conditions.

Choose genuine XCMG for uncompromising braking reliability and lasting value.

Conclusion

The XCMG 800371908 Disc is an essential component for any articulated dump truck, ensuring reliable braking and smooth power transmission under extreme conditions.

Its precision ground finish, advanced metallurgy, and robust construction deliver consistent friction performance, thermal stability, and long service life.

By restoring original braking efficiency, this disc reduces downtime, lowers maintenance costs, and enhances operator safety.

Always source genuine XCMG parts from authorised dealers for guaranteed authenticity and quality.

Choose the 800371908 disc for dependable braking performance and lasting operational peace of mind.

Partner with XCMG – your trusted source for heavy equipment braking solutions that deliver real value.


OEM 800371908 – XCMG Disc – the definitive friction surface component for your ADT’s brake and clutch systems. Engineered for durability, ground for precision, and backed by global quality standards. Trust the original to protect your investment and maximise uptime.

Hot Sale Genuine XCMG Articulated Dump Truck Parts

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