Dingtai manufactures complete undercarriage components for Liebherr bulldozers, including track rollers, idlers, sprockets, track chains, and track shoes.
Factory-direct production supports OEM manufacturing, custom dimensions, and private labeling for global distributors and equipment owners.
Hardened steel components resist abrasive wear and impact, preventing premature downtime and costly undercarriage failure on demanding job sites.
With 20+ years of heavy machinery manufacturing experience, Dingtai holds ISO9001 and SGS certifications, ensuring consistent quality and traceable inspection records.
35MnB alloy steel and deep induction hardening deliver high surface hardness, extending service life under continuous heavy load operations.
Core Selling Points
- Global Brand Compatibility: Components are machined to Liebherr PR series specifications, ensuring direct fit and interchangeability with existing OEM undercarriage setups.
- Premium 35MnB Material: Boron-alloy steel delivers high tensile strength and wear resistance, extending service intervals in abrasive operating conditions.
- Deep Quenching/Heat Treatment: Induction hardening creates a deep martensitic case, achieving uniform surface hardness while maintaining a tough core.
- 100% QC Inspection: Every component undergoes dimensional inspection, hardness testing, and visual checks to maintain ISO9001 and SGS traceability standards.
Our catalog of Liebherr Bulldozers undercarriage parts includes various specifications, fully compatible with Liebherr PR series bulldozers.
Why Choose Dingtai?
1. Production Technical Parameters
| Parameter | Specification |
|---|---|
| Material | 35MnB / 40MnB alloy steel |
| Surface Hardness | HRC 52-58 |
| Heat Treatment | Deep induction quenching and tempering |
| Manufacturing Process | Precision forging/casting, CNC machining |
| Certification | ISO9001:2015, SGS |
| Warranty | 12 months / 2,000 operating hours |
2. OEM & Customization
We match customer drawings, custom dimensions, and OEM standards. Components are manufactured to strict tolerances for direct replacement on Liebherr bulldozers.
3. Applicable Models
| Machine Type | Compatible Brands | Popular Series/Models |
|---|---|---|
| Bulldozer | Liebherr | PR 712, PR 724, PR 734, PR 736 |
| Bulldozer | Liebherr | PR 744, PR 754, PR 764, PR 776 |
4. Delivery & Logistics
We provide factory-direct pricing, flexible MOQs, and reliable sea or land freight from Quanzhou. Export packaging protects components during international shipment.
Technical Features
Deep induction quenching creates a hardened martensitic surface while retaining a ductile core. This reduces rolling contact fatigue in track rollers and idlers.
Floating seal designs and precision-machined mating surfaces retain lubrication and block contamination, extending service intervals in high-abrasion environments.
Precision-forged track links and induction-hardened bushings reduce internal wear and maintain correct track pitch under heavy drawbar loads.
Applications
- Mining
- Road Construction
- Quarrying
- Heavy Earthmoving
- Infrastructure Development
- Demolition and Site Preparation
Frequently Asked Questions (FAQ)
1. What is the minimum order quantity for Liebherr bulldozer undercarriage parts?
Our MOQ varies by part number. Sample orders are accepted for standard track rollers, idlers, and sprockets.
2. How long is delivery for OEM undercarriage components?
Standard parts ship within 15–25 days. Custom-manufactured orders typically require 30–45 days depending on quantity and process.
3. What heat treatment depth do your track rollers and idlers have?
Hardened depth ranges from 4–8 mm depending on part size, with surface hardness of HRC 52–58.
4. What warranty policy applies to Dingtai undercarriage parts?
We provide a 12-month or 2,000-hour warranty against manufacturing defects under normal operating conditions.
5. Can you match existing Liebherr part numbers?
Yes. Send OEM part numbers, drawings, or dimensional data. We cross-reference and manufacture to equivalent specifications.
6. Do you supply complete undercarriage kits?
Yes. We supply individual components and complete track chain assemblies, roller groups, idler groups, and sprocket groups.
Maintenance Guide
- Inspect track tension daily: Incorrect sag accelerates chain and sprocket wear. Adjust to OEM specifications for the current ground conditions.
- Check oil levels in sealed rollers: Low lubricant indicates seal damage. Replace components showing wet contamination or excessive heat.
- Monitor wear indicators: Measure link pitch, bushing diameter, and roller tread height. Replace parts before exceeding OEM wear limits.
- Clean undercarriage regularly: Remove debris, mud, and rock packing to reduce friction, corrosion, and premature bushing wear.