XCMG XR220D Sprocket Wheel Assembly / Final Drive Wheel Assembly (800352095): Direct Manufacturer Supply for Heavy -Duty Crawler Rotary Drilling Rig Undercarriages

On a rotary drilling rig like the XCMG XR220D, the sprocket wheel assembly — also called the final drive wheel assembly — is the critical power transmission interface between the travel motor and the track chain. Every unit of tractive force passes through its toothed circumference, and each tooth is subjected to continuous abrasion, heavy shock loading, and high bending stress as the rig repositions from borehole to borehole over unprepared ground. The OEM part number 800352095 identifies this complete sprocket wheel assembly for the XR220D.

cqctrack manufactures this sprocket assembly as a direct supply from the manufacturer of specialized parts for heavy-duty crawler rotary drilling rig undercarriages. We support global wholesale and distribution, custom non-standard production, and OEM manufacturing, ensuring that every customer — from a single drilling contractor to a multinational distribution network — receives factory-direct quality and dependable service. 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 manufacturing quality behind our 800352095 sprocket 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 and components. 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 capability directly supports rotary drilling rigs like the XCMG XR220D, where the undercarriage must carry substantial mast and drill string weight while providing stable mobility across challenging terrain.

Our product range covers the complete spectrum of tracked equipment:

• Rotary drilling rigs (including XCMG, ZOOMLION, and other major brands)
• Crawler excavators
• Crawler cranes
• Horizontal directional drills (HDD rigs)
• Bulldozers
• Tracked loaders
• Tracked asphalt pavers
• Tracked conveyor systems

This breadth of application means the 800352095 sprocket benefits from metallurgical and design knowledge accumulated across many years of severe-duty service in drilling, mining, and earthmoving — not just one equipment type.

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

A final drive sprocket on a rotary drilling rig 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. 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 800352095 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 800352095 sprocket is not reverse-engineered from a worn sample — it is manufactured with an inside understanding of XCMG’s load ratings, material specifications, and heat treatment requirements for rotary drilling rig undercarriages.

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 800352095 sprocket for an XR220D or a complete undercarriage package for a mixed fleet of drills, excavators, and cranes, we can supply the correct, engineered parts without guesswork.

4. Inside the 800352095 Sprocket Wheel Assembly: Alloy Steel Casting, Full-Ring Heat Treatment, and 100% NDT

Here is exactly how cqctrack builds the final drive wheel assembly for the XCMG XR220D to deliver the structural integrity and wear life that heavy-duty rotary drilling 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 — exactly what a drilling rig demands when repositioning over rough, uneven 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 800352095 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 final 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)/800352037
• Carrier rollers (top rollers / upper rollers)
• Front idlers (guide wheels)/800353031
• Drive sprockets (final drive wheel assemblies) / 800352095
• Complete track chain assemblies with shoes//800352039 / 429900638
• 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 XR220D 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. Direct Supply, Global Wholesale and Distribution, Custom Non-Standard Production, OEM Manufacturing — and a Personal Note from Jack

To provide drilling 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 job site or warehouse worldwide.

I have authored this piece because I believe a final drive sprocket on a rotary drilling rig deserves complete technical transparency. When you contact us about the XCMG XR220D sprocket wheel assembly / final drive wheel assembly (part number 800352095), you are speaking directly with the specialized manufacturer — not an intermediary.

We supply directly from the manufacturer. This means factory-direct pricing, complete traceability, and no uncertain sourcing.

We support global wholesale and distribution. Whether you need a single sprocket for immediate replacement or a container load for regional distribution, we are ready to serve you with consistent quality and dependable logistics. We welcome long-term distribution partnerships.

We support custom non-standard production. If your XR220D operates in particularly abrasive ground, requires a modified tooth profile for extended wear life, or demands a specialized material grade, we can engineer and produce a custom sprocket to your exact specification.

We support OEM manufacturing. Our OEM/ODM capability means we can manufacture under your brand, using your technical drawings or ours, with full confidentiality and consistent quality.

If you operate XCMG rotary drilling rigs, manage a drilling fleet, or are seeking a reliable factory-direct source of specialized crawler undercarriage parts with full customization and distribution support, 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 your projects on schedule.

Jack
International Affairs Team, cqctrack