XCMG XE1250/ XE1350 Track Final Drive Wheel Assembly / Sprocket Wheel Assembly (800364253): OEM/ ODM Manufacturing by cqctrack – Seeking Agents Worldwide

On a 125–135 tonne mining excavator like the XCMG XE1250 or XE1350, the final drive sprocket is the point where hydraulic torque becomes track motion. Every ounce of drawbar pull passes through the sprocket teeth into the track chain, making it one of the most heavily loaded and severely worn components in the entire undercarriage. The OEM part number 800364253 identifies this complete track final drive wheel assembly — a precision-engineered, heavy-duty sprocket wheel designed for continuous mining duty.

cqctrack manufactures this sprocket wheel assembly as an OEM/ODM manufacturer of heavy-duty crawler undercarriage parts for XCMG mining equipment. We supply directly from our factory, and we are currently seeking agents worldwide to expand our global distribution network. I’m Jack, from the cqctrack international affairs team, and I’ve personally written this article to give you a complete technical picture of the engineering, metallurgy, and manufacturing quality behind our 800364253 final drive wheel assembly.

1. cqctrack: A Full-Spectrum OEM/ODM Undercarriage Manufacturer Serving 5t to 400t Equipment

cqctrack is a dedicated OEM and ODM manufacturer of heavy-duty tracked undercarriage systems. Our engineering and production capabilities span tracked machinery from 5 tonnes to 300 tonnes, and we have successfully extended our undercarriage platform to 400-tonne-class ultra-heavy equipment. This high-capacity engineering directly supports the XE1250/XE1350 weight class, where each sprocket must withstand extreme bending loads and continuous abrasive contact with the track chain.

Our product range covers the complete spectrum of tracked equipment:

• Crawler excavators (including large XCMG mining models)
• Bulldozers
• Crawler drilling rigs
• Crawler cranes
• Tracked loaders
• Tracked asphalt pavers
• Tracked conveyor systems

This breadth of application means the 800364253 sprocket benefits from metallurgical and design knowledge accumulated across many years of severe-duty service — not just one machine type.

2. Self-Built Factory and 100% In-House Production for Stable, Repeatable Quality

A final drive sprocket on a 135-ton excavator is a safety-critical component. Any inconsistency in casting density, heat treatment depth, or tooth profile accuracy can cause accelerated chain wear, tooth breakage, or complete undercarriage failure. To eliminate every external variable, cqctrack operates from a self-built industrial campus where all production lines are fully company-owned. We outsource none of the core manufacturing steps.

Every sprocket assembly produced under part number 800364253 passes through a complete in-house chain:

• Incoming alloy steel chemistry verification via optical emission spectrometry
• Precision casting of the sprocket ring from high-grade alloy steel
• CNC machining of the tooth profile, bolt circle, pilot bore, and mounting faces
• Full-ring through-hardening and tempering heat treatment
• 100% non-destructive flaw detection on every sprocket
• Dimensional metrology against XCMG engineering tolerances
• Surface anti-corrosion treatment and final quality release

Because every process is contained within our own factory, the sprocket you receive today is dimensionally and metallurgically identical to the one you will receive next year — stable, repeatable, and fully traceable to raw material heat numbers and production batches.

3. OEM Manufacturing Partnerships and a Catalog of Over 20,000 Parts

Our manufacturing credibility is built on direct OEM supply. cqctrack serves as an OEM manufacturing partner for leading global brands, including:

• XCMG
• Hitachi
• LiuGong
• KOBELCO
• SDLG (LGCE)

We produce undercarriage components that are fitted directly onto new machines on these manufacturers’ assembly lines, strictly conforming to their technical drawings, material specifications, and audit requirements. Our direct OEM relationship with XCMG means the 800364253 sprocket is not reverse-engineered from a worn sample — it is manufactured with an inside understanding of XCMG’s load ratings, dimensional stack-ups, and heat treatment specifications.

For the worldwide aftermarket, our active product catalog has grown to more than 20,000 individual part numbers, covering track rollers, carrier rollers, idlers, sprockets, and complete track chains. This depth ensures that whether you need a single 800364253 final drive wheel for an XE1350 or a complete undercarriage package for a mixed mining fleet, we can supply the correct, engineered parts without guesswork.

4. Inside the 800364253 Final Drive Sprocket: Alloy Steel Casting, Full-Ring Heat Treatment, and 100% NDT

Here is exactly how cqctrack builds the final drive wheel assembly for the XCMG XE1250/XE1350 to deliver the structural integrity and wear life that severe mining duty demands.

Alloy Steel Casting — The sprocket ring is produced from a high-grade alloy steel casting, formulated for deep hardenability, high tensile strength, and excellent fatigue resistance. The alloy chemistry ensures that each tooth can withstand continuous impact and sliding wear from the track bushings, while the ring body resists cracking under the enormous torque loads transmitted by the final drive hub.

Full-Ring Heat Treatment and Tempering — After casting and preliminary machining, the sprocket undergoes a complete full-ring through-hardening and tempering heat treatment. This is not a localized surface hardening that leaves soft spots between teeth. The entire ring circumference receives a uniform thermal cycle, producing consistent tooth hardness around all 360 degrees. Subsequent tempering precisely adjusts the microstructure to achieve the ideal balance between maximum surface wear resistance and core toughness.

100% Non-Destructive Testing (NDT) — Every single finished sprocket assembly is subjected to 100% non-destructive flaw detection before it enters final dimensional inspection. Using magnetic particle and ultrasonic testing, we scan for any sub-surface cracks, porosity, shrinkage cavities, or inclusions that could initiate fatigue failure under load. A sprocket with an undetected internal flaw may look perfect on delivery but fail catastrophically after a few hundred hours. Our NDT regime eliminates that risk.

Strict Dimensional Tolerance Control — All mounting and interface dimensions — the bolt hole circle, pilot bore diameter, flange face runout, and tooth profile geometry — are machined and verified within the tolerances of the original XCMG engineering drawings. This ensures that the 800364253 sprocket bolts directly onto the final drive hub without modification, maintaining perfect chain meshing and preventing the uneven wear that arises from even slight misalignment.

5. One Source for the Complete Undercarriage System

A final drive sprocket is just one element of the crawler undercarriage. At cqctrack, we manufacture the entire undercarriage wearing package under one roof, using one unified quality system:

• Track rollers (bottom rollers)800364255
• Carrier rollers (top rollers)800364251
• Front idlers (guide wheels)800364249
• Drive sprockets (final drive wheel assemblies)800364253
• Complete track chain assemblies with shoes800364256
• Bucket teeth and adapters (for excavator applications)Bucket Crown:819955488 /6I8802TL; Adapter:6I8804 /819955342

Because all these components share the same metallurgical standards, heat treatment profiles, and dimensional disciplines, they wear as a compatible system. Sourcing your 800364253 sprocket together with our rollers, idlers, and track chains ensures a harmonized undercarriage with predictable wear rates — extending the interval between major rebuilds and lowering your total operating cost.

6. Seeking Agents Worldwide — and a Personal Note from Jack

To expand our global reach and provide mining contractors, heavy equipment dealers, and regional distributors with factory-direct quality, cqctrack is actively seeking agents worldwide. We invite qualified partners to join our distribution network and bring OEM-grade undercarriage parts to their local markets.

The key people you will work with are:

• Philip — managing global distribution strategy, OEM partnerships, and agent network development.
• Jack — that is me. I focus on product technology, application compatibility, and technical communications. I have personally written and reviewed every specification in this article.
• Haily — coordinating inquiry handling, order processing, and international logistics to ensure on-time delivery to any location.

I have authored this piece because I believe a final drive sprocket on a 135-ton mining excavator deserves complete technical transparency. When you contact us about the XCMG XE1250/XE1350 track final drive wheel assembly (part number 800364253), you are speaking directly with an OEM/ODM manufacturer — not an intermediary.

If you are an equipment owner, fleet manager, or a potential agent or distributor looking for a reliable, factory-direct source of heavy-duty crawler undercarriage parts for XCMG mining equipment, I invite you to reach out to Philip, Haily, or me directly. Let cqctrack’s vertically integrated, self-manufactured quality keep your machines tracking productively, and let us build a long-term partnership together.

Jack
International Affairs Team, cqctrack