Dingtai manufactures complete Case bulldozer undercarriage parts, including track chains, rollers, idlers, sprockets, and bottom rollers for heavy crawler dozers.
We operate factory-direct production with full OEM service, supplying cost-effective replacement undercarriage systems to global distributors, dealers, and construction firms.
Our hardened components resist abrasive wear, reduce unplanned downtime, and solve recurring breakage issues in high-impact earthmoving and dozer applications.
With over 20 years of undercarriage manufacturing experience and ISO9001/SGS certified processes, we deliver consistent quality for long-term fleet reliability.
Premium 35MnB boron steel, precision forging, and deep quenching produce wear-resistant parts that outperform standard aftermarket alternatives in severe conditions.
Core Advantages
- Global Brand Compatibility: Precision-machined to replace Case OEM track chains, rollers, idlers, and sprockets for 450, 550H, 650K, 850K, 1150K, and 1650K dozers.
- Premium 35MnB Material: High-tensile boron steel improves core strength and wear resistance, extending component life in abrasive sand, rock, and clay conditions.
- Deep Quenching/Heat Treatment: Induction hardening and tempering produce uniform HRC 50-56 surfaces with deep hardness profiles that resist spalling and fatigue cracking.
- ISO9001/SGS Certified: Every batch undergoes dimensional inspection, hardness testing, and visual quality checks, ensuring consistent OEM-level quality for global procurement.
Our catalog of Case Bulldozers Undercarriage Parts includes various specifications, fully compatible with Case excavators and bulldozers.
Why Choose Dingtai?
1. Production Technical Parameters
| Parameter | Specification |
|---|---|
| Material | 35MnB / 40MnB high-tensile boron steel |
| Hardness | HRC 50-56 for rollers and idlers; HRC 48-52 for bushings |
| Process | Precision forging, CNC machining, induction hardening, tempering |
| Certification | ISO9001:2015, SGS |
| Warranty | 12 months / 2,000 hours against manufacturing defects |
2. OEM & Customization
Dingtai manufactures to your drawings or samples, customizing dimensions, bolt patterns, and hardness requirements to strict Case OEM replacement standards.
3. Applicable Models
| Machine Type | Compatible Brands | Popular Series/Models |
|---|---|---|
| Crawler Bulldozer | Case Construction | 450, 550H, 650K, 750K, 850K, 1150K, 1650K, 2050M |
| Track Loader | Case | 455C, 555E, 650K, 750L |
| Crawler Excavator | Case | CX130B, CX210B, CX240B, CX350C |
4. Delivery & Logistics
We offer factory-direct pricing, flexible MOQs, and reliable FOB/CIF shipping. Standard parts ship in 15-25 days to reduce landed cost.
Technical Features
Floating seal design in track rollers retains lubricant and blocks abrasive fines, extending bearing life in sandy or rocky underfoot conditions.
Heat-treated 35MnB rims achieve deep uniform hardness without brittle cores, resisting spalling, fatigue, and deformation under heavy dozer loads.
Precision-machined pins and bushings maintain controlled clearance and oil film retention, lowering friction and increasing track chain service intervals.
Applications
- Mining overburden removal
- Road construction
- Quarrying
- Landfill operations
- Demolition
- Forestry
Frequently Asked Questions
Q: What is the MOQ for Case bulldozer undercarriage parts?
A: Standard MOQ is 2-4 pieces per part number. Mixed container orders are accepted to support trial evaluations.
Q: What is the delivery time?
A: Regular models ship within 15-25 days. Customized orders require 30-45 days depending on drawing confirmation.
Q: How deep is the heat treatment?
A: Forged rollers and idlers are induction hardened to HRC 50-56 with an effective depth of 8-12mm depending on part type.
Q: What warranty do you provide?
A: We provide 12 months or 2,000 hours against manufacturing defects, excluding normal wear, misuse, or improper installation.
Q: Can you match Case part numbers?
A: Yes. Supply your OEM part number or drawing, and we will cross-reference and produce exact dimensional replacements.
Q: Do you provide samples?
A: Yes. Sample orders are available for evaluation before bulk procurement.
Q: Are these parts compatible with aftermarket or OEM tracks?
A: Our components meet Case OEM pitch, bolt pattern, and hub specifications, fitting standard and heavy-duty track groups.
Maintenance Guide
- Inspect track sag daily. Adjust tension to manufacturer specifications to prevent accelerated pin and bushing wear.
- Check roller and idler flange wear every 250 hours. Replace components showing sharp flange edges or oil leaks.
- Verify undercarriage bolt torque after the first 50 hours of operation, then every 500 hours thereafter.
- Clean mud and debris from the undercarriage after each shift to reduce abrasive wear and corrosion.
- Replace track chains and sprockets together when bushing wear exceeds 10% of original diameter.