XCMG XE1350 Drive Sprocket Wheel Assembly (800367981): Customized Supply from cqctrack – Specialized Manufacturer of Dedicated Parts for Heavy -Duty Tracked Construction Machinery

On a 135-ton class mining excavator like the XCMG XE1350, the drive sprocket wheel assembly is where hydraulic power becomes tractive force. Every tonne of drawbar pull generated by the travel motors passes through its toothed circumference into the track chain, subjecting each tooth to continuous abrasive sliding wear, high-cycle impact from track bushings, and severe bending stress during digging and repositioning. The OEM part number 800367981 identifies this complete drive sprocket wheel assembly for the XE1350.

cqctrack manufactures this sprocket assembly as a customized supply from a specialized manufacturer of dedicated parts for heavy-duty tracked construction machinery. We are not a general parts trader — we are the factory that casts, machines, heat-treats, and inspects this component under one roof, and we engineer each unit to the exact configuration your machine and application require. I’m Jack, from the cqctrack international affairs team, and I’ve personally written this article to give you a complete technical understanding of the engineering, metallurgy, and customized manufacturing capability behind our 800367981 drive sprocket.

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 and components, with a specific focus on dedicated parts for heavy-duty tracked construction machinery. 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-capability envelope directly supports the 135-tonne XCMG XE1350, where every sprocket tooth must withstand extreme bending loads and continuous abrasive contact with a massive track chain.

Our products cover the complete range of tracked equipment:

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

This broad application base means the 800367981 sprocket benefits from metallurgical and design knowledge accumulated across decades of severe-duty service in mining, quarrying, and heavy infrastructure — not just a single machine type.

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

A drive sprocket on a 135-ton mining excavator is a safety-critical component. Any inconsistency in casting density, heat treatment depth, or tooth profile accuracy can lead to accelerated chain wear, premature tooth breakage, or complete undercarriage failure deep in a mine pit. 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 800367981 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 Undercarriage Parts

Our quality standards are validated daily by the equipment manufacturers who trust us with their production. cqctrack serves as an OEM manufacturing partner for leading global brands, including:

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

We produce undercarriage components that are installed directly on new machines on these assembly lines, strictly conforming to their technical drawings, material codes, and audit requirements. Our direct OEM relationship with XCMG means the 800367981 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 135-ton class mining excavators.

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 800367981 sprocket 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 800367981 Drive Sprocket: Alloy Steel Casting, Full-Ring Heat Treatment, and 100% NDT

Here is exactly how cqctrack builds the drive sprocket wheel assembly for the XCMG XE1350 to deliver the structural integrity and wear life that 135-ton class 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. For the XE1350, the casting is engineered with optimized material distribution to handle the elevated torque of a 135-ton machine without adding unnecessary rotating mass.

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 — exactly what a 135-ton mining excavator demands when slewing and traveling on rocky ground.

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 800367981 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 and More

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

• Track rollers (bottom rollers / lower rollers) /800364255
• Carrier rollers (top rollers / upper rollers) / 800364251
• Front idlers (guide wheels) /  800364249
• Drive sprockets (drive sprocket wheel assemblies) / 800367981
• Complete track chain assemblies with shoes
• Bucket teeth and adapters (for excavator applications)

Because all these components are produced within a single integrated manufacturing environment, they share unified metallurgical standards, heat treatment philosophies, and dimensional tolerances. Sourcing your XE1350 sprockets together with our rollers, idlers, and track chains ensures a harmonized undercarriage system with predictable, compatible wear rates — ultimately extending the interval between major rebuilds and lowering your cost per operating hour.

6. Customized Supply — and a Personal Note from Jack

To provide mining contractors, heavy equipment dealers, and international distributors with fast, technically grounded support, cqctrack has assembled a dedicated international affairs team. The key people you will work with directly are:

• Philip — managing global distribution channels, OEM partnership development, and aftermarket supply strategy.
• 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 mine site or warehouse worldwide.

I have authored this piece because I believe a drive sprocket on a 135-ton mining excavator deserves complete technical transparency. When you contact us about the XCMG XE1350 drive sprocket wheel assembly (part number 800367981), you are speaking directly with the specialized manufacturer — not an intermediary.

Customized supply is at the core of what we do. A sprocket that leaves our factory for a hard-rock iron ore mine is not configured identically to one destined for a coal stockyard or a limestone quarry. Depending on your application, we can adjust:

• Tooth hardness profile — tailoring surface hardness and case depth to match the abrasiveness of your ground conditions
• Tooth geometry — modifying profile parameters where track chain specifications or operating conditions require it
• Material grade — selecting an alloy chemistry suited to your impact-versus-abrasion balance
• Sealing and mounting interface — accommodating regional variants or updated hub configurations
• Brand marking — producing under your own brand with full confidentiality under our OEM/ODM agreement

If you provide a technical drawing, a worn sample, or simply the operating conditions your XE1350 faces, our engineering team can develop a sprocket specification that fits your machine and your mine. Every custom unit still passes through the same 100% NDT and full dimensional inspection gates as our standard production.

If you operate XCMG heavy-duty mining excavators, manage a large tracked construction fleet, or are seeking a reliable factory-direct source of dedicated undercarriage parts with genuine customization capability, 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 through the most demanding mining conditions.

Jack
International Affairs Team, cqctrack