We manufacture Komatsu bulldozer sprocket segments, bolt-on undercarriage components that transfer final drive torque to the track chain for reliable propulsion.
Factory-direct production with full OEM manufacturing services. We supply replacement segments for global equipment distributors and end users.
Hardened segments prevent premature sprocket wear and downtime. They resist impact, abrasion, and deformation in severe dozing operations.
With 20+ years experience and ISO9001/SGS certified processes, Dingtai delivers consistent metallurgy and dimensional accuracy in every batch.
We use premium 35MnB steel, precision forging, and deep induction hardening to achieve optimal hardness depth and long service life.
Core Selling Points
- Premium 35MnB Material: Forged from high-grade boron steel, this material provides high tensile strength, impact toughness, and resistance to abrasive wear in demanding conditions.
- Deep Quenching/Heat Treatment: Induction-hardened teeth achieve a deep HRC case depth, significantly reducing wear and preventing tooth breakage under heavy bulldozer loads.
- OEM Capabilities: We manufacture to OEM drawings and part numbers with exact bolt-hole patterns and pitch dimensions for direct installation.
- Global Brand Compatibility: Direct replacement segments for popular Komatsu bulldozer models, ensuring seamless installation without modification or rework.
Our catalog of Komatsu Bulldozer Segment includes various specifications, fully compatible with Komatsu excavators and bulldozers.
Why Choose Dingtai?
Production Technical Parameters
| Parameter | Specification |
|---|---|
| Material | 35MnB / 40Mn2 alloy steel |
| Surface Hardness | HRC 50-55 |
| Hardening Depth | 8-12 mm |
| Manufacturing Process | Precision forging, CNC machining, induction hardening |
| Certification | ISO9001, SGS |
| Warranty | 12 months / 2,000 hours |
OEM & Customization
We match OEM drawings and part numbers precisely. Custom dimensions, bolt patterns, and tooth profiles are produced under strict quality control.
Applicable Models
| Machine Type | Compatible Brands | Popular Series/Models |
|---|---|---|
| Small Bulldozer | Komatsu | D20, D21, D31, D37 |
| Medium Bulldozer | Komatsu | D41, D51, D61, D65 |
| Large Bulldozer | Komatsu | D85, D155, D275, D375 |
| Mining Bulldozer | Komatsu | D475 |
Delivery & Logistics
We ship globally with reliable freight partners. Factory-direct pricing and flexible MOQs support both urgent replacement orders and scheduled fleet maintenance.
Technical Features
Bolt-on segmented design allows quick replacement without removing the entire sprocket or track frame, reducing labor and downtime.
Induction hardening creates a deep martensitic surface layer while retaining a ductile core, preventing tooth breakage and abrasive wear.
CNC-machined bolt holes and pitch diameter ensure correct meshing with track bushings, reducing uneven wear and vibration.
Applications
- Mining: Slope dozing and haul road maintenance with D155/D275 segments.
- Road Construction: Subgrade preparation and shoulder work using D51/D65 dozers.
- Quarrying: Ripping and bench clearing with D85/D155 machines.
- Land Clearing: Heavy vegetation removal with D41/D61 bulldozers.
- Heavy Civil Works: Dam and pipeline projects using D375/D475 dozers.
Frequently Asked Questions
What is the minimum order quantity?
MOQ is 4 pieces for standard Komatsu segments; sample orders are accepted.
What is the delivery time?
Standard models ship in 15-25 days. Custom orders require 30-45 days.
What heat treatment depth do you provide?
Induction hardened case depth is 8-12mm with surface hardness HRC 50-55.
How do I match part numbers?
Provide the OEM part number or drawing; we verify dimensions against the Komatsu catalog.
What warranty policy applies?
12 months or 2,000 hours against material and manufacturing defects under normal use.
Can you produce non-standard segments?
Yes, custom dimensions and bolt patterns are available based on your drawings.
What material do you use?
We use 35MnB or 40Mn2 alloy steel depending on model and application.
Do you provide export packaging?
Standard export wooden pallets with rust-proof coating; custom packaging is available.
Maintenance Guide
- Inspection: Check sprocket segment teeth for sharp points, cracking, or uneven wear every 250 operating hours.
- Installation: Clean the mounting surface and torque bolts in a cross pattern to OEM-specified values.
- Replacement: Replace segments in sets when tooth tip wear exceeds 25% or drive noise increases.
- Track Tension: Maintain correct track tension to prevent abnormal segment and track bushing wear.