Dingtai manufactures heavy-duty Case track rollers, the critical undercarriage component that supports excavator weight and guides track movement under high-load conditions.
We offer factory-direct sales with full OEM manufacturing services, supplying replacement track rollers for Case equipment fleets across North America and global markets.
Dingtai track rollers resist abrasive wear, impact loads, and seal failures, reducing unplanned downtime and extending undercarriage service intervals in demanding job sites.
With over 20 years of manufacturing experience and ISO9001/SGS-certified quality systems, Dingtai delivers consistent, inspection-backed components for critical heavy machinery fleets.
Each roller uses premium 35MnB steel, precision machining, and deep quenching technology to achieve durable wear resistance and reliable structural integrity.
Core Selling Points
- Premium 35MnB Material: Forged 35MnB steel shells provide high tensile strength and impact toughness, resisting deformation under severe excavator operating conditions.
- Deep Quenching/Heat Treatment: Computer-controlled heat treatment hardens tread surfaces to HRC 48–55, extending wear life and preventing premature roller shell failure.
- ISO9001/SGS Certified: Our production processes are ISO9001 certified and SGS inspected, ensuring every batch meets international quality and dimensional standards.
- OEM Capabilities: We manufacture to OEM drawings or samples with precise dimensions, bolt patterns, and hardness specifications for Case undercarriage systems.
Our catalog of Case Track Roller includes various specifications, fully compatible with Case excavators and bulldozers.
Why Choose Dingtai?
1. Production Technical Parameters
| Parameter | Specification |
|---|---|
| Material | 35MnB / 40Mn2 forged steel shell |
| Hardness | HRC 48–55 (tread surface) |
| Heat Treatment | Deep quenching + tempering, effective depth 6–10 mm |
| Process | Precision forging, CNC machining, assembly |
| Certification | ISO9001, SGS |
| Warranty | 12 months or 2,000 service hours |
2. OEM & Customization
Dingtai matches customer drawings or samples, customizing dimensions, hardness, and mounting interfaces while strictly adhering to OEM replacement standards for Case machinery.
3. Applicable Models
| Machine Type | Compatible Brands | Popular Series/Models |
|---|---|---|
| Excavator | Case | CX130, CX210, CX240, CX350, CX470 |
| Bulldozer | Case | 650M, 750M, 850M, 1150M, 1650M |
4. Delivery & Logistics
We ship from China with reliable freight options, factory-direct pricing, and flexible MOQs to support both urgent repairs and bulk fleet maintenance programs.
Technical Features
Each roller integrates a floating seal and bimetal bushing. This design retains lubrication while blocking abrasive dirt, extending internal component life in harsh environments.
Deep-hardened tread surfaces resist metal-to-metal wear, while forged shells absorb impact stress, reducing the risk of cracking and roller flange fatigue.
Lubrication reservoirs ensure continuous oil film between shaft and bushing, maintaining low rolling resistance and stable undercarriage performance.
Applications
- Mining
- Road Construction
- Quarrying
- Demolition
- Forestry
- Heavy Earthmoving
Frequently Asked Questions
Q: What is the minimum order quantity for Case track rollers?
A: Our standard MOQ is 4 pieces per specification. Sample orders can be arranged for first-time inspection.
Q: What is the delivery time?
A: Standard delivery is 15–25 days after deposit confirmation, depending on order quantity and production schedule.
Q: How deep is the heat treatment on the roller tread?
A: The effective hardening depth is 6–10 mm, with surface hardness controlled between HRC 48–55 for wear resistance.
Q: What warranty do you provide?
A: We provide a 12-month or 2,000-hour warranty against manufacturing defects under normal operating conditions.
Q: Can you match my Case part number?
A: Yes. Send the OEM part number or drawing, and our engineers will cross-reference specifications and confirm compatibility.
Q: Do you offer samples before bulk order?
A: Yes, sample orders are available so you can verify fitment and hardness before committing to large-volume production.
Q: What material is used for Case track rollers?
A: Shells are usually 35MnB or 40Mn2 forged steel, selected for high tensile strength and impact fatigue resistance.
Q: How do you ensure quality?
A: Every batch undergoes hardness testing, dimensional inspection, and seal leakage checks under ISO9001/SGS-certified procedures.
Maintenance Guide
- Inspect roller treads, flanges, and seals every 250 service hours for oil leaks, cracks, or uneven wear patterns.
- Check mounting bolts to specified torque during undercarriage maintenance to prevent loosening and uneven load distribution.
- Replace rollers when tread wear exceeds 20% or when seal failure causes oil contamination and internal play.
- Install new rollers in matched sets where possible, following OEM torque sequence and ensuring clean mounting surfaces.