Product Definition: Dingtai manufactures double-flange track rollers for Liebherr bulldozers. These rollers support undercarriage weight and guide the track chain under heavy loads.
Service Advantage: We operate factory-direct. Our comprehensive OEM manufacturing services supply global clients with matched Liebherr undercarriage components and custom specifications.
Problem Solved: Double-flange rollers prevent track chain derailment and uneven wear. They reduce unplanned downtime in abrasive earthmoving and mining conditions.
Why Us: With 20+ years of manufacturing experience, Dingtai maintains ISO9001:2015 and SGS-certified quality systems. Our products meet strict international procurement standards.
Technology: Forged 35MnB shells and deep quenching achieve HRC 50-55 surface hardness. This engineering extends roller life under impact and abrasive wear.
Core Selling Points
- 20+ Years Experience: We have manufactured undercarriage components for global equipment fleets since 2003, ensuring proven field reliability and technical depth.
- Premium 35MnB Material: Our rollers use high-strength 35MnB steel, providing excellent toughness and resistance to impact, bending, and abrasive wear.
- Deep Quenching/Heat Treatment: Shell heat treatment reaches HRC 50-55 with a hardened depth of 8-12 mm, extending service life in heavy-duty applications.
- ISO9001/SGS Certified: Every production batch follows ISO9001:2015 protocols. SGS material reports verify chemical composition and mechanical properties before shipment.
Our catalog of Liebherr Bulldozer Track Roller-Double Flange includes various specifications, fully compatible with Liebherr excavators and bulldozers.
Why Choose Dingtai?
1. Production Technical Parameters
| Parameter | Specification |
|---|---|
| Material | 35MnB forged steel shell |
| Hardness | HRC 50-55 |
| Heat Treatment Depth | 8-12 mm |
| Process | Precision forging, CNC machining, induction hardening, assembly |
| Certification | ISO9001:2015, SGS material report |
| Warranty | 12 months or 2,000 working hours |
2. OEM & Customization
We match customer drawings and OEM part numbers. Dimensions, hardness, and flange design are produced strictly to Liebherr interchangeability standards.
3. Applicable Models
| Machine Type | Compatible Brands | Popular Series/Models |
|---|---|---|
| Crawler Bulldozer | Liebherr | PR 712, PR 724, PR 734, PR 736, PR 744, PR 754, PR 764, PR 776 Litronic |
4. Delivery & Logistics
We ship worldwide by sea or air with reliable export packaging. Factory-direct pricing applies for flexible MOQs, trial orders, and scheduled bulk shipments.
Technical Features
Double-Flange Guidance: The twin flange design keeps the track chain aligned, reducing side wear and preventing derailment on uneven or sloped ground.
Floating Seal Lubrication: Integrated floating seals and bimetal bushings retain lubricant and block contamination, extending internal wear life.
Heat-Treated Shell: Induction hardening on the tread and flange surfaces provides deep wear resistance while the core remains tough against impact.
Applications
- Mining overburden removal
- Quarrying and aggregate processing
- Road construction and site preparation
- Land clearing and forestry
- Landfill and waste handling
Frequently Asked Questions
What is the minimum order quantity for Liebherr double-flange track rollers?
Standard MOQ is 2-4 pieces. One sample or trial piece is available for first orders.
What is the typical delivery time?
Production takes 15-25 days after deposit and drawing confirmation. Air freight is available for urgent orders.
How deep is the heat treatment on the roller shell?
Surface hardness is HRC 50-55 with a hardened depth of 8-12 mm, depending on part number.
What warranty do you provide?
We provide a 12-month or 2,000-working-hour warranty against manufacturing defects under normal operating conditions.
Can you match Liebherr OEM part numbers?
Yes. We produce according to OEM part numbers, drawings, or physical samples to ensure direct interchangeability.
Do you provide neutral or private-label packaging?
Yes. Export fumigation pallets, neutral boxes, and private-label marking are available on request.
Maintenance Guide
- Track Tension: Check tension daily. Improper tension accelerates flange and tread wear and may cause derailment.
- Seal Inspection: Inspect for oil leaks at scheduled intervals. Replace damaged floating seals before fine particles enter the roller.
- Wear Measurement: Measure tread and flange wear against Liebherr limits. Replace rollers before wear exposes the hardened layer.
- Torque Installation: Use specified torque and sequence during installation to avoid housing stress and bolt loosening.