Top Description
Dingtai manufactures premium undercarriage parts for Liebherr bulldozers, including track rollers, idlers, sprockets, and track chains that support the entire machine weight.
As a factory-direct supplier with full OEM capabilities, we provide precision-engineered components built to original specifications for global distributors and fleets.
Our undercarriage solutions eliminate premature wear and catastrophic failure, reducing unscheduled downtime in demanding mining and earthmoving applications.
With over 20 years of specialized manufacturing and ISO9001/SGS quality certification, we deliver consistent reliability that procurement directors trust.
Forged from 35MnB alloy steel and deep-quenched to 52-58 HRC, every part features a high-strength microstructure that extends service life.
Core Selling Points
- 20+ Years Experience
Dingtai has refined undercarriage manufacturing for over two decades, supplying reliable heavy-duty components to international clients. - Premium 35MnB Material
All critical parts use forged 35MnB alloy steel, providing high tensile strength and fatigue resistance under extreme shock loads. - Deep Quenching/Heat Treatment
Our heat treatment penetrates deep into the material, achieving a surface hardness of 52-58 HRC while maintaining a tough core. - OEM Capabilities
We manufacture to your exact specifications or sample parts, ensuring full interchangeability with Liebherr OEM components without compromise.
Product Grid Intro
Our catalog of Liebherr Bulldozers Undercarriage Parts includes various specifications, fully compatible with Liebherr PR series bulldozers such as PR 736, PR 746, PR 751, PR 754, and PR 776 models.
Why Choose Dingtai?
1. Production Technical Parameters
| Parameter | Specification |
|---|---|
| Material | 35MnB / 40Mn2 alloy steel |
| Hardness (Surface / Core) | 52-58 HRC / 28-35 HRC |
| Process | Die forging, CNC machining, heat treatment, assembly |
| Certification | ISO 9001:2015, SGS |
| Warranty | 12 months or 2,000 working hours |
2. OEM & Customization
We replicate OEM part numbers and accept custom dimensions, ensuring exact fitment for all Liebherr bulldozer models.
3. Applicable Models
| Machine Type | Compatible Brands | Popular Series/Models |
|---|---|---|
| Bulldozer | Liebherr | PR 736, PR 746, PR 751, PR 754, PR 764, PR 776 |
4. Delivery & Logistics
We offer flexible MOQ and efficient sea/air freight from Chinese ports, delivering factory-direct pricing with reliable shipping schedules worldwide.
Technical Features
Floating metal face seals prevent lubricant loss and contaminant ingress, enabling maintenance-free operation and extending component life in abrasive conditions.
Bimetallic bushings with a lead-tin alloy layer accommodate high bearing pressures and reduce friction, preventing galling under slow, heavy loads.
Induction-hardened tread surfaces achieve uniform hardness depth up to 8 mm, resisting spalling and plastic deformation from rock impacts.
Applications
- Mining
- Road Construction
- Quarrying
- Demolition
- Forestry
- Landfill Operations
Frequently Asked Questions
- What is the minimum order quantity?
MOQ is typically 4 pieces per part number, but we accommodate trial orders for new clients. - How long is delivery time?
Standard production lead time is 25-35 days; urgent orders can be expedited within 15 days. - What heat treatment depth is achieved?
We achieve a hardened case depth of 4-8 mm depending on the component, with surface hardness 52-58 HRC. - What is the warranty policy?
We provide a 12-month or 2,000 working hour warranty against manufacturing defects for all undercarriage parts. - Can you match my Liebherr part numbers?
Yes, we cross-reference OEM part numbers and manufacture direct replacements with full drawing compliance. - Do you offer inspection reports?
Yes, each batch includes a material certificate and dimensional inspection report per ISO9001 requirements. - Are you an authorized Liebherr supplier?
We are an independent OEM-quality manufacturer, not authorized, but produce under the same ISO standards for aftermarket supply.
Maintenance Guide
- Installation alignment: Ensure track tension and alignment are within OEM specs to prevent uneven roller and idler wear.
- Lubrication: Fill with recommended SAE 30 or 50 oil to the level plug, checking for floating seal leakage monthly.
- Wear inspection: Measure tread and flange thickness; replace components when wear exceeds 20% of original dimensions.
- Replacement interval: Schedule undercarriage rebuilds based on operating hours and wear rate analysis to avoid unexpected failures.