Dingtai manufactures double flange track rollers for Komatsu bulldozers. These rollers guide the track chain and support machine weight in the undercarriage.
We offer factory-direct supply with complete OEM manufacturing services. Global clients receive consistent parts, custom marking, and competitive direct pricing without intermediaries.
Double flange design prevents lateral track movement and derailment. Heat-treated surfaces resist wear, reducing downtime and costly undercarriage replacement on harsh sites.
With over 20 years of manufacturing experience, Dingtai holds ISO9001 and SGS certifications, ensuring every batch meets international dimensional and material standards.
Each roller uses 35MnB steel and deep quenching to achieve 52–58 HRC. This hardens the tread and flanges for extended service life.
Core Selling Points
- Premium 35MnB Material: Rollers are forged from 35MnB steel, providing high tensile strength and impact resistance for severe bulldozer applications in mining and earthmoving.
- Deep Quenching/Heat Treatment: Tread and flange surfaces undergo deep induction hardening to 52–58 HRC, ensuring uniform wear resistance without brittle cracking under load.
- Global Brand Compatibility: Manufactured to Komatsu OEM dimensions, our double flange rollers directly replace D20, D31, D37, D41, D50, D60, D65, D85, and D155 series.
- 100% QC Inspection: Every roller passes dimensional, hardness, and leakage testing before shipment, ensuring consistent fit, rotation, and sealing performance.
Product Range
Our catalog of Komatsu Bulldozer Track Roller-Double Flange includes various specifications, fully compatible with Komatsu excavators and bulldozers.
Why Choose Dingtai?
1. Production Technical Parameters
| Parameter | Specification |
|---|---|
| Material | 35MnB forged steel |
| Hardness (HRC) | 52–58 HRC on tread and flange |
| Process | Forging, CNC machining, induction hardening, floating seal assembly |
| Certification | ISO9001 / SGS |
| Warranty | 12 months or 2,000 operating hours |
2. OEM & Customization
We match customer drawings, OEM samples, and part numbers. Custom dimensions, hardness patterns, and neutral packaging are available under strict OEM standards.
3. Applicable Models
| Machine Type | Compatible Brands | Popular Series/Models |
|---|---|---|
| Bulldozer | Komatsu | D20, D31, D37, D41, D50, D60, D65, D85, D155, D275, D355, D375 |
| Crawler Loader | Komatsu | D20PL, D31PL, D41PL, D57S |
4. Delivery & Logistics
We ship factory-direct from Quanzhou via sea, air, or express. Flexible MOQs support trial orders and bulk fleet replacement programs.
Technical Features
Double flange design keeps the track chain laterally aligned. It prevents derailment during turning, side slope operation, and uneven ground, protecting the undercarriage.
A lifetime lubricated floating seal system blocks dirt and moisture. It maintains an internal oil film, reducing friction and extending service intervals.
Precision bimetal bushings support the roller shaft and distribute load evenly. This lowers operating temperature and prevents premature wear under continuous heavy loads.
Applications
- Open-pit mining and surface mining
- Highway and road construction
- Quarrying and aggregate processing
- Landfill and demolition operations
- Large-scale earthmoving and infrastructure
FAQ
Q1: What is the minimum order quantity for Komatsu double flange track rollers?
Trial orders typically start at 1–10 pieces depending on stock availability. Bulk pricing applies for mixed container orders and scheduled fleet replacements.
Q2: What is the delivery time?
Stock rollers ship within 7 days. Standard production requires 15–30 days after deposit confirmation, depending on quantity and specifications.
Q3: How deep is the heat treatment?
Induction hardening depth generally reaches 6–10 mm on tread and flange surfaces, with hardness controlled at 52–58 HRC.
Q4: What warranty does Dingtai provide?
We offer a 12-month or 2,000-hour warranty against material and manufacturing defects under normal operating conditions.
Q5: Can you match Komatsu part numbers?
Yes. Provide the OEM part number or drawing. We cross-reference dimensions and produce an exact-fit replacement with full traceability.
Q6: Do you offer custom OEM services?
Yes. We support custom dimensions, hardening specifications, branding, and packaging according to client drawings or samples.
Q7: How do I confirm compatibility before ordering?
Send the machine model, part number, and roller dimensions. Our engineers verify fitment against Komatsu specifications before production.
Maintenance Guide
- Before installation, verify the OEM part number, roller rotation direction, and shaft collar orientation. Clean mounting bores and remove burrs.
- Torque roller and track shoe bolts to Komatsu specifications. Confirm the roller rotates freely without excessive axial or radial play.
- Inspect rollers every 250 service hours for oil leakage, flange wear, and seizure. Replace if wear exceeds OEM limits.
- Replace double flange rollers per undercarriage wear assessment or in matched sets to maintain track alignment and even load distribution.