Dingtai manufactures Liebherr Bulldozer Track Chain Assembly units, the core undercarriage component transferring machine weight and drive torque for stable dozing operations.
Factory-direct production supports complete OEM manufacturing services, including custom links, pins, bushings, and full track group assembly for global clients.
Our assemblies resist elongation, cracking, and premature wear, minimizing unplanned downtime in abrasive bulldozer applications and reducing total undercarriage operating cost.
With 20+ years of heavy machinery manufacturing experience, Dingtai holds ISO9001 and SGS certifications, ensuring repeatable quality and traceability for procurement directors.
We use 35MnB forged links and induction-hardened pins and bushings to achieve deep hardness layers, extending service life under high-impact loads.
Core Selling Points
- Premium 35MnB Material: Forged 35MnB links deliver high tensile strength and impact toughness, resisting cracking under severe bulldozer loads and rocky terrain.
- Deep Quenching/Heat Treatment: Induction hardening creates deep case depth on pins and bushings, improving wear resistance and extending track chain service intervals.
- Global Brand Compatibility: Direct replacement for Liebherr PR series bulldozers, matching OE pitch, pin diameter, and link dimensions for fast installation.
- 100% QC Inspection: Each track chain assembly undergoes dimensional checks, hardness testing, and magnetic particle inspection before packaging and export.
Our catalog of Liebherr Bulldozer Track Chain Assembly includes various specifications, fully compatible with Liebherr PR 714, PR 724, PR 734, PR 744, PR 754, PR 764, and PR 776 bulldozers.
Why Choose Dingtai?
1. Production Technical Parameters
| Specification | Detail |
|---|---|
| Link Material | 35MnB / 40Mn2 forged steel |
| Pin Material | 20Mn2 hardened steel |
| Bushing Material | 40Cr hardened steel |
| Surface Hardness | HRC 52-58 for pins/bushings; HRC 40-48 for links |
| Core Hardness | HB 250-320 |
| Manufacturing Process | Precision forging, CNC machining, induction hardening, controlled assembly |
| Certification | ISO9001:2015, SGS |
| Warranty | 12 months or 2,000 working hours, whichever comes first |
2. OEM & Customization
We match customer drawings, part numbers, and sample dimensions, producing track chain assemblies to strict OEM tolerance standards.
3. Applicable Models
| Machine Type | Compatible Brands | Popular Series/Models |
|---|---|---|
| Bulldozer | Liebherr | PR 714, PR 724, PR 734 |
| Bulldozer | Liebherr | PR 744, PR 754, PR 764, PR 776 |
4. Delivery & Logistics
Factory-direct pricing and flexible MOQ support both trial orders and bulk procurement, with reliable sea freight and export packing.
Technical Features
Track chain assemblies are engineered with precision pitch control to reduce drive sprocket impact and prevent link climbing during heavy push operations.
Optional sealed and lubricated track chain retains oil between pin and bushing, reducing internal friction and extending pin and bushing life.
Deep-hardened pins and bushings maintain hardness below the surface, delaying wear through the case layer and improving overall undercarriage durability.
Applications
- Mining and quarrying in abrasive rock conditions
- Heavy road construction and earthmoving
- Demolition and site preparation
- Landfill and waste handling
- Forestry and steep terrain clearing
Frequently Asked Questions
1. What is the minimum order quantity for Liebherr bulldozer track chain assemblies?
MOQ is usually 2 assemblies per model. Dingtai supports trial orders for first-time buyers.
2. How long is delivery?
Standard production takes 20-35 days, depending on specification and order volume. Express options are available for urgent requirements.
3. What heat treatment depth do pins and bushings have?
Induction hardening typically achieves 4-8 mm effective case depth, depending on part number and duty requirements.
4. What warranty is provided?
We provide 12 months or 2,000 working hours warranty against material and manufacturing defects, whichever comes first.
5. How do I match our Liebherr part number?
Send your OEM part number, machine serial range, or drawing. Our engineers verify pitch, link width, and pin dimensions before quotation.
6. Can you produce custom track chain assemblies?
Yes, we manufacture to customer drawings and samples, including non-standard link height, pin length, and special bushing coatings.
7. What material is used?
Standard links use 35MnB forged steel. Pins and bushings use hardened 20Mn2 and 40Cr materials for high wear resistance.
Maintenance Guide
- Check track sag weekly. Adjust tension to Liebherr specification to prevent excessive pin and bushing wear and derailment risk.
- Inspect pin and bushing wear using calipers. Replace the chain assembly when internal wear exceeds OEM wear limits.
- Keep the undercarriage clean. Remove rocks, mud, and debris that accelerate link face wear and interfere with track alignment.
- Rotate or replace sprockets with track chain service to prevent uneven pitch mismatch and premature failure.
- Sealed SALT chains require no daily greasing. Preserve the factory oil film and avoid contamination during installation.