The Komatsu track link assembly is the core load-bearing structure connecting track shoes, transmitting machine weight and drive force across the undercarriage.
We operate as a factory-direct undercarriage parts manufacturer, providing full OEM manufacturing services to procurement directors and heavy equipment dealers worldwide.
Our assemblies eliminate premature link cracking and pin seizure, directly reducing unplanned downtime in abrasive mining and earthmoving conditions.
Dingtai holds ISO9001 and SGS certifications, backed by over 20 years of engineering undercarriage components for global heavy machinery fleets.
We forge each link from 35MnB steel and apply deep induction quenching to the rail surface, guaranteeing exceptional hardness and wear life under load.
Core Selling Points
- 20+ Years Experience: Two decades of dedicated undercarriage manufacturing give us deep metallurgical knowledge and process control few competitors can match.
- Premium 35MnB Material: We exclusively use 35MnB alloy steel for link bodies, achieving an optimal balance of tensile strength and impact toughness.
- Deep Quenching/Heat Treatment: Rail surfaces and pin bores undergo deep medium-frequency induction hardening, producing a 4–8 mm hardened case to resist plastic deformation.
- ISO9001/SGS Certified: Every batch is traceable to certified mill test reports, and SGS inspection reports are available before shipment, assuring quality.
Our catalog of Komatsu Track Link Assembly includes various specifications, fully compatible with Komatsu excavators and bulldozers.
Why Choose Dingtai?
1. Production Technical Parameters
| Parameter | Specification |
|---|---|
| Link Body Material | 35MnB Forged Steel |
| Surface Hardness (HRC) | Rail Surface 52–58 HRC, Pin Bore 50–54 HRC |
| Manufacturing Process | Hot Forging, Deep Induction Quenching, Precision Machining |
| Certification | ISO9001:2015, SGS Inspection Report |
| Warranty | 12 Months or 2,000 Operation Hours (Whichever Comes First) |
2. OEM & Customization
We manufacture to your exact drawing specifications, replicate OEM part numbers, and customize link dimensions while strictly adhering to Komatsu’s material and hardness standards.
3. Applicable Models
| Machine Type | Compatible Brands | Popular Series/Models |
|---|---|---|
| Excavator | Komatsu | PC200, PC300, PC400 |
| Bulldozer | Komatsu | D31, D37, D41, D65 |
| Excavator & Dozer | Komatsu, Caterpillar, Hitachi | Additional models available on inquiry |
4. Delivery & Logistics
We ship factory-direct with flexible MOQ, consistent container loading plans, and reliable sea freight to major US ports, ensuring predictable lead times and total cost control.
Technical Features
Track links are precision forged to align pin bores and bushing seats perfectly, which distributes tension evenly and prevents stress concentration at the saddle.
Sealed and lubricated track (SALT) assemblies retain oil between the pin and bushing, dramatically reducing internal wear and eliminating the need for daily greasing.
Deep hardened rail profiles maintain their geometry against sprocket thrust, while the large link body mass provides stable support for heavy overburden loads.
Applications
- Open-Pit Mining
- Heavy Earthmoving
- Quarrying and Aggregate
- Road Construction
- Forestry and Land Clearing
- Demolition and Scrap Handling
Frequently Asked Questions
- What is the minimum order quantity for Komatsu track link assemblies?
- MOQ is typically one complete set for a single machine. For trial orders, partial sets can be arranged.
- How long does delivery take?
- Standard production lead time is 25–35 days. Urgent orders can be expedited to 15–20 days based on capacity.
- How deep is the heat treatment on the rail surface?
- Induction hardening achieves a consistent case depth of 4–8 mm, providing long wear life before re-hardening is needed.
- What warranty do you offer?
- 12 months or 2,000 hours against manufacturing defects. Warranty covers material and heat-treatment failures; wear parts are excluded.
- Can you match a specific Komatsu part number?
- Yes. Provide the OEM part number or a dimensional drawing, and we will cross-reference or reverse-engineer an exact compatible link.
- Are your track link assemblies sealed and lubricated?
- We offer both dry (conventional) and SALT-type sealed assemblies. SALT is strongly recommended for high-hour applications.
- Do you ship to the United States regularly?
- Absolutely. We have established container routes to Houston, Los Angeles, and Savannah with complete customs documentation.
Maintenance Guide
- Check master pin retention and end cap bolts weekly to prevent link separation during operation.
- Measure track sag daily; over-tightening accelerates pin and bushing wear significantly.
- Inspect rail height and bushing outer diameter monthly; replace links when 70% wear is reached.
- Rotate pins and bushings at the 50% wear point to extend total assembly life.
- Clean out packed material from the link cavities regularly to avoid corrosion and trapped debris.