Dingtai manufactures JCB track link assemblies that connect track shoes and form the continuous drive chain within JCB excavator undercarriage systems.
Dingtai operates factory direct, supplying complete OEM track link assemblies for JCB chassis systems to equipment distributors and dealers worldwide.
Precision-machined pins and bushings prevent premature chain elongation, reducing track pitch wear and minimizing expensive unplanned undercarriage downtime for fleet operators.
With 20+ years undercarriage manufacturing experience and ISO9001/SGS certifications, Dingtai delivers consistent, verifiable quality for demanding excavation and earthmoving operations worldwide.
Forged 35MnB steel links undergo deep induction quenching to HRC 48-56, ensuring maximum fatigue resistance under extreme heavy load conditions.
Core Advantages
- Premium 35MnB Material: Forged from high-tensile 35MnB alloy steel, our track links withstand severe impact loads and provide double the fatigue life of standard carbon steel.
- Deep Quenching/Heat Treatment: Induction hardening achieves HRC 48-56 case depth, resisting abrasive wear on rail surfaces and pin bores for significantly extended service intervals.
- Precision Forging/Casting: Hot die forging ensures uniform grain structure and dimensional accuracy, guaranteeing perfect pitch alignment with JCB sprocket teeth engagement.
- OEM Capabilities: We manufacture to OEM drawings with exact hole tolerances, pressed pin/bushing fits, and seal groove specifications matching JCB factory standards.
Our catalog of JCB Track Link Assembly includes various specifications, fully compatible with JCB excavators and bulldozers.
Why Choose Dingtai?
1. Production Technical Parameters
| Parameter | Specification |
|---|---|
| Link Material | Hot-forged 35MnB alloy steel |
| Link Surface Hardness | HRC 48-56 (rail and contact surfaces) |
| Pin Material / Hardness | 40Cr alloy steel / HRC 52-58 |
| Bushing Material / Hardness | 20CrMnTi carburized / HRC 50-56 |
| Heat Treatment Depth | Induction quenching, 5-8 mm case depth |
| Manufacturing Process | Hot die forging + CNC machining + induction hardening |
| Pitch Tolerance | ±0.15 mm |
| Seal Type | Polyurethane / rubber, sealed and lubricated (SALT) optional |
| Certification | ISO9001:2015, SGS |
| Warranty | 12 months / 2,000 hours (whichever occurs first) |
2. OEM & Customization
Dingtai matches customer drawings, custom dimensions, and OEM specifications precisely. We produce links for standard, sealed, and lubricated JCB track chain configurations.
3. Applicable Models
| Machine Type | Compatible Brands | Popular Series/Models |
|---|---|---|
| Tracked Excavators | JCB | JS130, JS145, JS160, JS180, JS200, JS205, JS220 |
| Tracked Excavators | JCB | JS240, JS260, JS300, JS305, JS330, JS360, JS370 |
| Crawler Dozers | JCB | 1145, 1150, 1160 Series |
4. Delivery & Logistics
Reliable shipping via sea freight or express courier. Factory-direct pricing with flexible MOQ starting at one complete track chain assembly per specification.
Technical Features
Sealed track links feature polyurethane seals retaining internal grease between pin and bushing, preventing abrasive particle ingress and extending service life.
Bimetal bushings combine hardened outer shells with self-lubricating inner layers, reducing internal friction and pitch elongation under continuous excavator workload.
Hot die forging aligns steel grain flow along link contours, eliminating weak points at pin bores where maximum stress concentrates during operation.
Applications
- Mining and Mineral Extraction
- Heavy Civil Construction
- Road and Highway Construction
- Quarrying and Aggregate Processing
- Demolition and Site Clearance
- Forestry and Land Clearing
- Pipeline and Utility Installation
Frequently Asked Questions
Q1: What is the MOQ for JCB track link assemblies?
A: The MOQ is one complete track chain assembly (paired links) for standard specifications. Custom OEM orders may have different minimums.
Q2: What is the typical delivery time?
A: Standard specifications ship within 15-25 days after order confirmation. Custom OEM production requires 30-45 days.
Q3: How deep is the heat treatment on your track links?
A: Induction hardening achieves 5-8 mm case depth, with surface hardness of HRC 48-56 on link rail surfaces and pin bores.
Q4: What is the warranty policy?
A: 12 months or 2,000 operating hours, whichever occurs first, against manufacturing defects under normal operating conditions.
Q5: How do I match JCB part numbers?
A: Provide your JCB OEM part number or undercarriage serial number. Our engineering team verifies compatibility and interchangeability before quotation.
Q6: Are sealed and lubricated track links available?
A: Yes. Dingtai offers both sealed (greased) and sealed-and-lubricated (SALT) track link configurations for JCB excavator models.
Q7: Can you produce custom pitch or modified track links?
A: Yes. We manufacture custom pitch, width, and hole configurations to customer drawings or physical samples.
Q8: What materials are used for pins and bushings?
A: Pins are 40Cr alloy steel induction hardened to HRC 52-58. Bushings are 20CrMnTi carburized to HRC 50-56 for maximum wear resistance.
Maintenance Guide
Step 1: Track Tension Verification
Verify track sag matches JCB factory specifications before operation. Incorrect tension accelerates pin/bushing wear and increases undercarriage fuel consumption.
Step 2: Visual Inspection
Inspect link rail surfaces monthly for scuffing, cracks, or uneven wear patterns indicating misaligned sprockets, idler issues, or carrier roller problems.
Step 3: Pitch Measurement
Measure track pitch across five consecutive links using calipers. When elongation exceeds 3% of original pitch, replace the track chain assembly.
Step 4: Lubrication Check
Grease track adjuster cylinders periodically. Dry pin and bushing joints create excessive friction that accelerates internal wear and causes premature chain seizure.
Step 5: Replacement Criteria
Replace track links when shoe bolt holes elongate beyond tolerance or link rail height wears below 20 percent of original factory dimension.