Dingtai manufactures Case excavator undercarriage parts—track rollers, idlers, sprockets, and chains—forming the critical ground-engaging system that supports machine weight and mobility.
We operate factory-direct, delivering complete OEM manufacturing from raw forging to final assembly for global distributors and fleets—without middlemen.
Engineered to withstand severe abrasion and impact, our Case undercarriage components eliminate premature wear, preventing costly downtime and component breakage.
With over 20 years of specialized manufacturing, Dingtai holds ISO9001 and SGS certifications, confirming rigorous quality management and consistent product reliability.
Our parts feature 35MnB steel and deep quenching to achieve HRC 52–58 surface hardness, maximizing wear life in abrasive environments.
Core Selling Points
- 20+ Years Experience: Dingtai has manufactured undercarriage parts since 2002, refining production processes to deliver consistent quality and extended service life for demanding operations.
- Global Brand Compatibility: Our Case-compatible undercarriage components are precision-engineered for direct fitment on CX130, CX210, CX240, and other popular series without modification, ensuring seamless replacement.
- Premium 35MnB Material: All track rollers, idlers, and sprockets are forged from high-grade 35MnB steel, providing exceptional tensile strength and fatigue resistance under cyclic loads.
- Deep Quenching/Heat Treatment: Our induction hardening and deep quenching provide a case depth of 4–8mm and HRC 52–58, ensuring maximum wear resistance for track components.
Our catalog of Case Excavator Undercarriage Parts includes various specifications, fully compatible with Case excavators and bulldozers.
Why Choose Dingtai?
1. Production Technical Parameters
| Parameter | Specification |
|---|---|
| Material | 35MnB / 40Mn2 forged steel |
| Surface Hardness | HRC 52–58 |
| Hardened Depth | 4–8 mm |
| Heat Treatment | Induction hardening, deep quenching |
| Process | Precision forging & CNC machining |
| Certification | ISO9001, SGS |
| Warranty | 12 months or 2,000 working hours |
2. OEM & Customization
We customize dimensions, bolt patterns, and hardness to match your OEM specifications, ensuring precise interchangeability and long service life without compromise.
3. Applicable Models
| Machine Type | Compatible Brands | Popular Series/Models |
|---|---|---|
| Crawler Excavator | Case | CX130B, CX210B/C/D, CX240B/D, CX290B, CX350B |
| Crawler Dozer | Case | 650K, 750K, 850K, 1150K |
4. Delivery & Logistics
We offer factory-direct pricing with flexible MOQs, shipping via sea freight to major US ports, with reliable lead times and customs support.
Technical Features
Track rollers feature a floating seal design that prevents contaminants and retains lubricant, ensuring long maintenance-free intervals in muddy conditions.
Idler assemblies use a bimetal bushing with high-density graphite plugs, providing self-lubrication and eliminating the need for daily greasing in heavy-duty cycles.
Sprockets are precision-forged and tooth-flame-hardened to maintain drive accuracy, significantly reducing track chain elongation and wear over extended service life.
Applications
- Mining
- Quarrying
- Heavy Earthmoving
- Road Construction
- Demolition
- Forestry
Frequently Asked Questions
Q1: What is the minimum order quantity for Case undercarriage parts?
Our MOQ is flexible; sample orders and mixed container loads are accepted to support trial evaluations.
Q2: What is the typical delivery lead time?
Standard production lead time is 25–30 days. Expedited options are available for urgent requirements.
Q3: How deep is the heat treatment on your track rollers?
Induction hardening achieves a case depth of 4–8 mm with a surface hardness of HRC 52–58, depending on the part number.
Q4: What warranty do you provide?
We offer a 12-month or 2,000-hour warranty against manufacturing defects under normal operating conditions.
Q5: Can you match specific Case OEM part numbers?
Yes, we cross-reference all original Case part numbers and produce according to OEM specifications for perfect fitment.
Q6: Are your parts suitable for severe mining applications?
Absolutely. Our 35MnB forgings and deep-hardened surfaces are designed for high-impact and abrasive mining environments.
Q7: Do you provide technical drawings for installation?
Yes, we supply installation guidelines and dimension drawings to ensure proper assembly and torque specifications.
Q8: Can you customize track chain pitch for extended frames?
Yes, we offer custom chain assemblies with specific pitch and link counts to match modified undercarriage configurations.
Maintenance Guide
- Inspect roller and idler surfaces monthly for oil leakage or excessive play; replace if seal failure is detected to prevent track derailment.
- Measure track sag as per operator’s manual; adjust tensioner correctly to prevent accelerated pin, bushing wear and sprocket damage.
- Replace sprockets when tooth tips sharpen or wear exceeds 25% of original profile, preventing chain skipping and drive motor overload.
- Regularly clean undercarriage components to remove packed mud and rocks, which accelerate wear and strain final drives—daily in muddy conditions.