Dingtai manufactures Case bulldozer sprocket segments—bolt-on drive rims that engage the track chain and transfer final drive power.
We operate factory-direct production with full OEM manufacturing services, supplying precise replacement segments to equipment distributors and fleet owners worldwide.
Segments resist impact and abrasive wear, preventing sprocket tooth failure, downtime, and premature track chain replacement in demanding dozer applications.
With 20+ years of manufacturing experience and ISO9001/SGS certification, we provide repeatable quality and traceable material records.
We use 35MnB steel and deep induction quenching to achieve a hard wear face, extending service life in severe conditions.
Core Selling Points
- Premium 35MnB Material: High-strength 35MnB steel withstands heavy impact loads and resists cracking under severe bulldozer operating conditions.
- Deep Quenching/Heat Treatment: Induction hardening penetrates deep into the tooth profile, producing HRC 48–55 surface hardness and a tough, fatigue-resistant core.
- Global Brand Compatibility: Engineered for Case dozer models and cross-referenced with major OEM part numbers for direct replacement.
- ISO9001/SGS Certified: ISO9001/SGS-certified systems ensure dimensional accuracy, material traceability, and consistent production batch after batch.
Our catalog of Case Bulldozer Segment includes various specifications, fully compatible with Case dozers, crawler loaders, and selected excavator undercarriages.
Why Choose Dingtai?
1. Production Technical Parameters
| Parameter | Specification |
|---|---|
| Material | 35MnB alloy steel |
| Surface Hardness | HRC 48–55 |
| Heat Treatment | Deep induction hardening |
| Hardened Depth | 8–12 mm |
| Manufacturing Process | Precision forging, CNC machining |
| Certification | ISO9001 / SGS |
| Warranty | 12 months or 2,000 working hours |
2. OEM & Customization
We match customer drawings, custom bolt patterns, and OEM part numbers, ensuring direct replacement under strict tolerance control.
3. Applicable Models
| Machine Type | Compatible Brands | Popular Series/Models |
|---|---|---|
| Track Dozer / Bulldozer | Case | 450, 550H, 650K, 750L, 850M, 1150N, 1650M |
| Crawler Loader | Case | 455C, 650K, 750L, 850M |
| Undercarriage Retrofits | Case / OEM equivalents | Per drawing or OEM part number |
4. Delivery & Logistics
We ship worldwide from Quanzhou port with factory-direct pricing, reliable ocean freight, and flexible MOQ starting at four pieces per specification.
Technical Features
Segmented sprocket construction allows field replacement without removing the track frame, reducing maintenance downtime and labor cost.
Deep induction hardening creates a high-hardness tooth flank while retaining a ductile core, preventing impact fractures and uneven wear.
Precision indexed bolt holes distribute load evenly across the final drive hub, preventing loose bolts and eccentric wear under high torque.
Applications
- Mining operations
- Road construction
- Quarrying and aggregate
- Land clearing and forestry
- Heavy infrastructure and dam projects
Frequently Asked Questions
Q: What is the minimum order quantity for Case bulldozer segments?
A: MOQ is 4 pieces per specification. Sample orders are accepted before bulk purchase.
Q: What is the production lead time?
A: Standard production takes 15–25 days. Stocked common specifications can ship within 7 days after deposit.
Q: What material and heat treatment do you use?
A: We use 35MnB alloy steel with deep induction hardening, achieving HRC 48–55 and a hardened depth of 8–12 mm.
Q: What warranty applies to your segments?
A: We provide 12 months or 2,000 working hours, whichever occurs first, under normal operating conditions.
Q: Can you match OEM part numbers?
A: Yes. Send the Case part number or drawing; we cross-reference dimensions and confirm compatibility before production.
Q: Do you provide samples?
A: Yes, sample segments can be supplied for dimensional and material verification before mass order.
Q: How are segments sold—individually or as a set?
A: Segments are usually sold per piece, but replacing a full set is recommended to maintain balanced wear and track alignment.
Q: What machines are these compatible with?
A: They fit Case 450, 550, 650, 750, 850, 1150, and 1650 bulldozer series, plus matching crawler loader models.
Maintenance Guide
- Inspect tooth profiles every 500 hours for sharpening, scalloping, cracking, or wear beyond 25% of original tooth thickness.
- Clean mounting faces, install new bolts, torque in sequence, and re-torque after the first 50 operating hours.
- Confirm sprocket pitch matches track chain pitch; mismatch accelerates bushing and segment wear.
- Maintain correct track sag; over-tensioned track increases sprocket segment load and shortens service life.
- Replace segments in pairs or complete sets to avoid unequal drive loading and irregular track wear.