Complete track groups are precision-manufactured assemblies that transfer machine weight and drive dozers or excavators across harsh terrain with minimal rolling resistance.
Factory-direct sourcing from Dingtai delivers fully assembled OEM-spec track groups, eliminating middlemen and providing custom configurations for international equipment fleets.
Hardened components and advanced sealing block abrasive ingress, dramatically reducing unscheduled downtime, premature link stretching, and pin/bushing breakage on your Komatsu machines.
With over 20 years of undercarriage specialization and ISO9001/SGS-certified production, we supply components trusted by procurement directors worldwide for consistent, measurable reliability.
35MnB alloy steel links, deep quenched to HRC 50–55, and induction-hardened pins ensure exceptional wear life under high-impact, high-abrasion load cycles.
- Global Brand Compatibility — Track groups dimensionally match Komatsu PC and D series models precisely; bolt patterns, pitch, and gauge align without modification.
- Premium 35MnB Material — Link bodies and shoes are forged from high-tensile 35MnB boron steel, providing superior impact toughness and crack resistance under cyclic stress.
- Deep Quenching/Heat Treatment — Through-hardened and case-hardened components achieve a durable wear surface while retaining a ductile core to prevent brittle fracture in rocky conditions.
- OEM Capabilities — We reverse-engineer to exact OEM prints, laser-cut serial numbers, and deliver fully assembled groups that meet or exceed factory technical specifications.
Our catalog of Komatsu track group includes various specifications, fully compatible with Komatsu excavators and bulldozers.
Why Choose Dingtai?
1. Production Technical Parameters
| Parameter | Specification |
|---|---|
| Primary Material | 35MnB alloy steel (link, pin, bushing) |
| Surface Hardness | HRC 50–55 (deep quenched layer 4–8 mm) |
| Forging Process | Hot die forging with post-forge normalizing |
| Heat Treatment | Integral quench + temper, induction hardening for pins/bushings |
| Certification | ISO9001:2015, SGS material report, 3.1 traceability |
| Warranty | 12 months or 2,000 operating hours (whichever comes first) |
2. OEM & Customization
We manufacture to your exact drawings or sample. Custom pitch, gauge, shoe width, and bolt patterns are executed with strict adherence to original OEM part number specifications.
3. Applicable Models
| Machine Type | Compatible Brands | Popular Series / Models |
|---|---|---|
| Excavator | Komatsu | PC200, PC220, PC300, PC400, PC450 series |
| Bulldozer | Komatsu | D65, D85, D155, D275, D375 series |
4. Delivery & Logistics
Factory-direct shipments from Quanzhou via FCL or LCL. MOQ as low as one complete group for trial; reliable ocean freight to major US ports with full customs documentation.
Technical Features
The track group incorporates sealed and lubricated (SALT) technology: each pin-to-bushing joint retains oil via a floating metal face seal, permanently excluding dirt and virtually eliminating internal wear.
Bimetal bushings feature a hardened inner bore and a tough outer surface, enabling reverse rotation after wear to double service life — an engineering advantage for severe-duty dozing cycles.
Link bodies are designed with a deep strut cross-section and optimized grouser profile, distributing ground pressure evenly and reducing shoe bend fatigue even on rocky rip-rap.
Applications
- Open-pit mining and overburden removal
- Heavy road construction and highway grading
- Quarry face extraction and aggregate handling
- Forestry road building and land clearing
- Large-scale earthmoving and dam construction
Frequently Asked Questions
- What is the minimum order quantity for Komatsu track groups?
- One complete set per trial order; subsequent orders can be mixed containers with flexible stocking arrangements.
- How deep is the heat treatment on track links?
- Deep quenching achieves a 4–8 mm hardened case with HRC 50–55, backed by a tough, shock-absorbing core.
- Do you offer warranty on track groups?
- Yes, 12 months or 2,000 hours warranty against material and manufacturing defects under normal operating conditions.
- Can you match specific Komatsu part numbers?
- Absolutely. We cross-reference your original part number and produce to the same dimensional, metallurgical, and assembly standards.
- What is the typical delivery time?
- 20–30 days from order confirmation for standard configurations; custom assemblies may require an additional 10 days.
- Do you provide pre-delivery inspection reports?
- Every track group passes 100% dimensional check, hardness verification, and assembly torque audit with SGS-certified reports available.
Maintenance Guide
- Pre-installation: Verify sprocket tooth profile matches the new track pitch; replace worn sprockets to avoid rapid joint wear.
- Alignment: Ensure frame and idler alignment is straight within 2 mm; misalignment accelerates link side wear and seal failure.
- Tensioning: Maintain correct sag as per Komatsu manual; over-tightening strains final drives, under-tightening causes sprocket jumping.
- Break-in: After the first 50 operating hours, recheck bolt torque and track tension; retorque shoe bolts if necessary.
- Wear monitoring: Measure link pitch elongation monthly; replace groups when internal pin/bushing wear exceeds 3% of original pitch.
- Replacement interval: Depending on ground conditions, a well-maintained SALT track group typically delivers 3,000–5,000 hours in mining duty.