Dingtai manufactures double-flange track rollers that guide, support, and align the track chain on Caterpillar bulldozers under full machine weight.
As a factory-direct China manufacturer, we provide complete OEM production for distributors, dealers, and fleet owners across North America and global markets.
Our hardened double-flange rollers prevent track derailment, resist abrasive wear, and eliminate premature failures caused by poor aftermarket castings or incorrect heat treatment.
With over 20 years in heavy equipment undercarriage manufacturing, Dingtai is ISO9001 and SGS certified, ensuring consistent, traceable quality for every batch.
We forge rollers from 35MnB steel and apply deep induction quenching, delivering a hard wear surface with a tough, shock-resistant core.
Core Selling Points
- Premium 35MnB Material: We use high-grade 35MnB boron steel for better hardenability, tensile strength, and impact resistance than standard carbon steel rollers.
- Deep Quenching/Heat Treatment: Tread and flange surfaces are induction hardened to 50-58 HRC with a 5-8 mm case depth for long wear life.
- ISO9001/SGS Certified: Manufacturing is controlled under ISO9001 quality systems and SGS inspection protocols, ensuring repeatable dimensions and material properties.
- 100% QC Inspection: Every completed roller passes 100% dimensional checks, hardness testing, surface finish review, and seal integrity verification before packing and release.
Our catalog of Caterpillar Bulldozer Track Roller-Double Flange includes various specifications, fully compatible with Caterpillar bulldozers.
Why Choose Dingtai?
Production Technical Parameters
| Technical Parameter | Specification |
|---|---|
| Material | 35MnB forged steel |
| Surface Hardness | 50-58 HRC |
| Hardening Depth | 5-8 mm on tread and flange |
| Heat Treatment | Deep induction quenching + tempering |
| Seal Type | Floating / mechanical face seal |
| Certification | ISO9001, SGS |
| Warranty | 12 months / 2,000 working hours |
OEM & Customization
Using your samples, drawings, or Caterpillar part numbers, we produce track rollers to OEM dimensions, tolerances, and material specifications with full customization support.
Applicable Models
| Machine Type | Compatible Brands | Popular Series/Models |
|---|---|---|
| Crawler Bulldozer | Caterpillar | D3, D4, D5, D6R, D6T, D7R, D8R, D8T, D9R, D9T, D10T, D11T |
Delivery & Logistics
We ship factory-direct to US ports with flexible MOQ from one unit, providing reliable ocean, air, or express freight and export-standard packing.
Technical Features
Double-flange rollers provide lateral retention of the track chain, keeping the links centered and reducing side wear on idlers and sprockets.
Floating face seals maintain internal oil lubrication and block abrasive dirt, extending bearing life under high-load, low-speed bulldozer conditions.
The 35MnB forged blank is induction hardened only at tread and flange contact zones; the core remains tough to absorb impact from rocks and uneven ground.
Applications
- Open-pit and surface mining fleets
- Quarry and aggregate haul roads
- Heavy civil earthmoving and road construction
- Land clearing and forestry dozing
- Landfill compaction and waste handling
- Pipeline and right-of-way preparation
Frequently Asked Questions
Q1: What is the minimum order quantity (MOQ) for Caterpillar bulldozer track rollers?
We accept sample orders from one unit; volume pricing starts at 10 units depending on the Caterpillar model.
Q2: What is the delivery time?
Standard production requires 15-25 days after deposit confirmation. Stock rollers can ship within 7 days.
Q3: How deep is the heat treatment on the roller surface?
Induction hardening depth is 5-8 mm on tread and flange surfaces, achieving 50-58 HRC with a tough core.
Q4: What warranty policy do you provide?
Each roller is warranted for 12 months or 2,000 working hours from shipment against manufacturing defects under normal operating conditions.
Q5: Can you match Caterpillar part numbers?
Yes. Send your Caterpillar part number or sample; we produce direct-fit replacements with strict dimensional and tolerance control.
Q6: Do you offer custom branding or packaging?
We offer neutral, Dingtai-branded, or customer-logo packaging and laser marking according to your distribution requirements.
Maintenance Guide
- Inspect rollers every 500 operating hours for oil leaks, flange wear, and abnormal noise or play.
- Maintain track tension to Caterpillar OEM specifications; over-tension increases roller tread and bearing load.
- Replace rollers in complete sets when tread wear reaches service limits to maintain even load distribution.
- Torque mounting bolts to OEM specifications during installation and confirm each roller rotates freely.