Dingtai manufactures Hitachi track groups—complete undercarriage assemblies including link chains, shoes, pins, and bushings for stable machine travel.
We are a factory-direct China manufacturer providing full OEM services, from sample duplication to batch production for global distributors and equipment owners.
Precision-manufactured track groups prevent premature undercarriage wear, reduce pin and bushing breakage, and avoid costly machine downtime on demanding job sites.
With over 20 years of heavy machinery undercarriage manufacturing, Dingtai holds ISO9001:2015 certification and SGS material reports for consistent quality assurance.
We use 35MnB forged steel, deep quenching, and tempering to deliver high surface hardness while retaining core toughness for impact resistance.
Core Selling Points
- Premium 35MnB Material: Track groups are forged from 35MnB steel for high tensile strength, impact resistance, and consistent fatigue life in heavy excavator service.
- Deep Quenching/Heat Treatment: Pins and bushings receive deep quenching to HRC 50-56, providing a wear-resistant surface with a tough core to resist cracking.
- Global Brand Compatibility: Dingtai Hitachi track groups are dimensionally matched to OEM specifications for popular Hitachi EX and ZX series excavators.
- 100% QC Inspection: Each assembly undergoes dimensional checks, hardness testing, and visual inspection before packing, with traceable quality records.
Our catalog of Hitachi Track Group includes various specifications, fully compatible with Hitachi excavator and crawler equipment models.
Why Choose Dingtai?
1. Production Technical Parameters
| Parameter | Specification |
|---|---|
| Material | 35MnB / 40Mn2 forged steel |
| Hardness | HRC 50-56 pins/bushings; HRC 38-45 links |
| Process | Precision forging, deep quenching, tempering |
| Certification | ISO9001:2015, SGS |
| Warranty | 12 months or 2,000 operating hours |
2. OEM & Customization
We manufacture to Hitachi OEM drawings or customer specifications. Dimensional matching, pitch accuracy, and hardness values are strictly controlled.
3. Applicable Models
| Machine Type | Compatible Brands | Popular Series/Models |
|---|---|---|
| Excavator | Hitachi | EX120, EX200, ZX200, ZX330, ZX470, ZX870 |
| Mining Excavator | Hitachi | EX1200, EX2600, EX3600, EX8000 |
4. Delivery & Logistics
Factory-direct pricing and flexible MOQ support both trial and bulk orders. Export-grade packaging prevents damage during FOB, CIF, or DDP shipments.
Technical Features
Forged track links made from 35MnB provide high tensile strength and resist elongation under severe digging and travel loads.
Sealed and lubricated track design retains oil at pin-bushing interfaces, blocks abrasive contamination, and extends service intervals in tough conditions.
Deep-hardened bushings and induction-hardened pins create a wear-resistant contact surface while keeping the core tough against impact fractures.
Applications
- Mining operations
- Quarrying and aggregate processing
- Road construction and site development
- Demolition and heavy excavation
- Forestry and material handling
Frequently Asked Questions
What is the MOQ for Hitachi track groups?
The MOQ is flexible. One standard set is usually accepted for trial orders; mixed models can be combined to reach container load.
How long is delivery?
Production typically takes 20-35 days after deposit confirmation, depending on order quantity and OEM customization.
Can you match Hitachi part numbers?
Yes. Provide the OEM part number or drawing. We cross-reference and manufacture to specified dimensions and hardness.
What is the heat treatment depth?
Pins and bushings are deep-quenched to HRC 50-56 with a hardened case depth sufficient for high-impact undercarriage service.
What warranty do you provide?
We offer a 12-month or 2,000-operating-hour warranty against manufacturing defects under normal use.
How do I confirm part number matching?
Send pitch, link quantity, shoe width, and pin/bushing diameter. Our engineers verify against Hitachi references before production.
Do you provide inspection reports?
Yes, dimensional inspection records, hardness test results, and material certificates are supplied with each shipment.
Maintenance Guide
- Check track sag daily and adjust tension to Hitachi specifications to prevent excessive wear on pins and bushings.
- Inspect sprocket and idler alignment at 250-hour intervals; misalignment accelerates track group wear and causes uneven link wear.
- Monitor shoe bolts and torque conditions; loose bolts lead to shoe loss and undercarriage damage.
- Replace or rotate pins and bushings when internal wear reaches 30–50% to protect sprockets and idlers from costly failure.