Dingtai manufactures Komatsu-compatible single flange track rollers, engineered to support machine weight and guide track chain alignment in bulldozer undercarriage systems.
As a factory-direct manufacturer, we provide full OEM services, including custom dimensions, material selection, and private labeling for global distributors and fleets.
This roller resists wear, impact, and flange cracking, reducing unplanned downtime and preventing track derailment in high-load Komatsu dozer applications.
With over 20 years of undercarriage manufacturing experience, our ISO9001/SGS certified processes ensure consistent metallurgy and dimensional accuracy.
Every roller uses 35MnB forged steel and deep induction hardening, achieving HRC 50-56 surface hardness for maximum service life.
Core Selling Points
- Global Brand Compatibility: Direct replacement for Komatsu D20 through D475 dozers, matching OEM part numbers and mounting dimensions for exact field installation.
- Premium 35MnB Material: Forged 35MnB steel delivers high tensile strength and impact resistance, extending roller life in abrasive and high-load conditions.
- Deep Quenching/Heat Treatment: Induction hardening creates an HRC 50-56 wear layer, reducing spalling, pitting, and flange deformation under continuous load.
- ISO9001/SGS Certified: Every batch is inspected and certified to ISO9001/SGS standards, with material and hardness reports available for procurement verification.
Product Grid
Our catalog of Komatsu Bulldozer Track Roller-Single Flange includes various specifications, fully compatible with Komatsu excavators and bulldozers.
Why Choose Dingtai?
1. Production Technical Parameters
| Parameter | Specification |
|---|---|
| Material | 35MnB / 40MnB forged steel |
| Surface Hardness (HRC) | HRC 50-56 |
| Hardening Depth | 6-10 mm |
| Process | Precision forging, CNC machining, induction hardening |
| Certification | ISO9001:2015, SGS |
| Warranty | 12 months / 2,000 hours |
2. OEM & Customization
We match Komatsu drawings, custom dimensions, and part numbers. Production follows strict OEM tolerances and material standards for guaranteed fitment.
3. Applicable Models
| Machine Type | Compatible Brands | Popular Series/Models |
|---|---|---|
| Bulldozer | Komatsu | D20, D21, D31, D37, D41, D50, D60, D65, D85, D155, D275, D355, D375, D475 |
| Excavator | Komatsu | PC200, PC220, PC300, PC350, PC400, PC450 |
4. Delivery & Logistics
We ship globally with secure export packing, factory-direct pricing, and flexible MOQ. Standard models ship in 15-25 days; custom orders require 30-45 days.
Technical Features
Single flange design centers the track chain, reducing lateral movement and flange-to-link wear under high torque and abrasive ground conditions.
Deep induction hardening transforms the 35MnB roller surface to HRC 50-56, resisting spalling, pitting, and extending undercarriage service intervals.
Floating seal technology retains lubrication while blocking dirt and moisture, protecting the bimetal bushing from abrasive contamination.
Applications
- Mining
- Road construction
- Quarrying and aggregate handling
- Landfill and waste management
- Forestry and land clearing
- Demolition and site preparation
Frequently Asked Questions
What is the minimum order quantity (MOQ)?
Standard Komatsu single flange track rollers have an MOQ of 4-8 pieces. Mixed models can be consolidated in one shipment.
What is the delivery time?
Stock standard models ship within 15-25 days after deposit. Custom-manufactured rollers require 30-45 days depending on quantity.
How deep is the heat treatment?
Induction hardening penetrates 6-10 mm below the tread surface, achieving HRC 50-56 for durable wear resistance.
What warranty do you provide?
We offer a 12-month or 2,000-hour warranty covering manufacturing defects under normal operating conditions.
Can you match Komatsu OEM part numbers?
Yes, send your OEM part number or drawing. We cross-reference dimensions and supply exact-fit replacements.
What material is used?
Rollers are precision forged from 35MnB or 40MnB steel, selected for high impact strength and fatigue resistance.
Do you provide samples or trial orders?
Yes, sample orders are available for standard stock items so you can verify fitment and hardness before bulk purchasing.
Maintenance Guide
- Inspect Wear: Inspect tread and flange wear every 500 hours; replace rollers with visible cracks, deep pitting, or flange thinning.
- Check Lubrication: Check oil level and seal condition; oil leaks indicate floating seal damage and require immediate roller replacement or rebuild.
- Torque Bolts: Torque mounting bolts to Komatsu OEM specifications during installation; recheck torque after the first 50 operating hours.
- Adjust Track Tension: Maintain correct track sag to avoid concentrated roller loading, which accelerates flange wear and shortens service life.