Hitachi Track Link Assembly
Dingtai manufactures Hitachi track link assemblies, connecting track shoes and transmitting drive load through the undercarriage system on excavators and bulldozers.
We supply factory-direct from Quanzhou, providing full OEM manufacturing services for global distributors, equipment fleets, and aftermarket parts buyers.
Our track link assemblies resist abrasive wear and shock loads, preventing premature chain elongation, pin seizure, and costly undercarriage downtime.
With over 20 years of heavy machinery undercarriage production and ISO9001/SGS certification, Dingtai delivers repeatable quality for demanding applications.
Forged 35MnB steel links and deep-quenched pins and bushings deliver high tensile strength and consistent hardness for extended service life.
Core Selling Points
- Premium 35MnB Material: Track link bodies are forged from 35MnB steel for high tensile strength, impact resistance, and reduced risk of cracking under heavy loads.
- Deep Quenching/Heat Treatment: Pins and bushings receive induction hardening to HRC 52-58, creating a wear-resistant surface that extends undercarriage service intervals.
- Precision Forging/Casting: Precision-machined pitch and bore tolerances ensure smooth sprocket engagement, reduced track chatter, and even load distribution across the chain.
- 100% QC Inspection: Every assembly undergoes dimensional inspection, hardness testing, and surface defect checks before packing to prevent premature field failures.
Product Grid
Our catalog of Hitachi Track Link Assembly includes various specifications, fully compatible with Hitachi excavators and bulldozers.
Why Choose Dingtai?
1. Production Technical Parameters
| Parameter | Specification |
|---|---|
| Material | 35MnB forged steel link body; high-carbon pin and bushing |
| Hardness | Pin/Bushing HRC 52-58; Link body HRC 36-42 |
| Hardened Depth | 4-8 mm on pins and bushings |
| Process | Precision forging, CNC machining, induction hardening, magnetic particle inspection |
| Certification | ISO9001, SGS |
| Warranty | 12 months or 2,000 working hours, whichever occurs first |
2. OEM & Customization
Dingtai matches Hitachi drawings, custom dimensions, and OEM standards, ensuring exact fit for stock and tailor-made track link assemblies.
3. Applicable Models
| Machine Type | Compatible Brands | Popular Series/Models |
|---|---|---|
| Hydraulic Excavator | Hitachi | EX60, EX120, EX200, ZX200, ZX330, ZX470, EX800 |
| Mining Excavator | Hitachi | EX1200, EX1900, EX2600, ZX870H, EX3600 |
4. Delivery & Logistics
Dingtai ships factory-direct from Quanzhou by sea or air, with flexible MOQ and reliable packaging. Standard stock orders dispatch within 7 working days.
Technical Features
Induction-hardened pins and bushings create a wear-resistant bearing surface, while 35MnB link bodies maintain core toughness for high-impact loads.
Precision pitch tolerance controls sprocket engagement, preventing track chatter, uneven wear, and stress peaks on final drive components.
Sealed and lubricated chain joints retain oil film between pin and bushing, blocking abrasive particles and reducing internal friction during operation.
Applications
- Mining
- Road Construction
- Quarrying
- Demolition
- Forestry
- Heavy Earthmoving
Frequently Asked Questions
What is the minimum order quantity (MOQ) for Hitachi track link assemblies?
Stock assemblies accept 2 pieces per part number; custom production may require 10 or more depending on machining setup.
How long is delivery?
Stock orders dispatch within 7 working days. Custom production typically takes 20-30 days after drawing approval.
What heat treatment depth do you achieve?
Pins and bushings receive 4-8 mm hardened depth at HRC 52-58; link bodies remain tough at HRC 36-42.
What warranty policy applies?
We provide 12 months or 2,000 working hours coverage against manufacturing defects, whichever occurs first.
Can you match Hitachi part numbers?
Yes. Provide the Hitachi part number or drawings; our engineers cross-reference and confirm dimensions before production.
Do you offer custom dimensions?
Yes, we manufacture to customer drawings and OEM standards, including non-standard pitch, pin diameter, and shoe bolt patterns.
Are samples available?
Stock samples can be supplied for evaluation; customer pays freight unless otherwise agreed.
Maintenance Guide
- Check track sag daily and adjust according to OEM specifications to avoid sprocket skip and excessive pin/bushing wear.
- Inspect oil seals and joint lubrication at 500-hour intervals; replace leaking seals before dry metal contact causes pin seizure.
- Torque track shoe bolts every 1,000 hours to prevent loosening, link distortion, and uneven wear under load.
- Measure bushing outer diameter and link wear height; replace track chain when service limits are reached or pitch elongation exceeds 3%.
- Keep undercarriage clear of packed debris after operation; abrasive material accelerates link, bushing, and sprocket wear.