Dingtai manufactures complete aftermarket Case track link assemblies, forged and machined to connect track shoes and transfer machine load through the undercarriage.
Our factory-direct model provides full OEM manufacturing and custom assembly services for distributors, equipment owners, and aftermarket suppliers worldwide.
This assembly prevents premature chain wear, track elongation, pin and bushing failure, reducing unplanned downtime and total operating cost.
With over 20 years of experience and ISO9001/SGS-certified processes, we deliver repeatable quality and traceable material reports for heavy-duty applications.
Premium 35MnB forged steel and deep quenching on pins and bushings deliver high hardness and dependable wear resistance under impact loads.
Core Selling Points
- 20+ Years Experience: Dingtai has produced undercarriage components for over two decades, supporting mining, construction, and agricultural fleets with verified quality records.
- Global Brand Compatibility: We engineer track link assemblies to match Case and other major OEM dimensions, ensuring direct fitment and reduced installation time.
- Premium 35MnB Material: Links are forged from 35MnB alloy steel, offering superior tensile strength, impact toughness, and resistance to bending under heavy loads.
- Deep Quenching/Heat Treatment: Pins and bushings receive induction hardening to HRC 52–58 with 4–8 mm case depth, resisting abrasive wear and spalling.
Our catalog of Case Track Link Assembly includes various specifications, fully compatible with Case excavators and bulldozers.
Why Choose Dingtai?
Production Technical Parameters
| Parameter | Specification |
|---|---|
| Material | 35MnB forged alloy steel |
| Link Hardness | HB 280–330 |
| Pin/Bushing Hardness | HRC 52–58 |
| Hardened Case Depth | 4–8 mm |
| Manufacturing Process | Precision forging, CNC machining, induction hardening, assembly |
| Certification | ISO9001:2015, SGS material reports |
| Warranty | 12 months or 2,000 working hours, whichever occurs first |
OEM & Customization
We match customer drawings, link pitch, pin/bushing dimensions, and OEM part numbers to produce direct-fit assemblies under strict quality control.
Applicable Models
| Machine Type | Compatible Brands | Popular Series/Models |
|---|---|---|
| Hydraulic Excavators | Case | CX130B, CX210B, CX240B, CX350C |
| Crawler Dozers | Case | 650L, 750L, 850L, 1150M |
| Compact Track Loaders | Case | TR270, TR310, TV380 |
Delivery & Logistics
We provide reliable container or LCL shipping, factory-direct pricing, and flexible MOQ from one assembly set for standard Case models.
Technical Features
Forged 35MnB links with induction-hardened pins and bushings reduce wear at the pin-bore interface, limiting track chain elongation under high drive loads.
Sealed and lubricated assemblies retain oil at pin-bushing contact faces while excluding dirt, extending service intervals in abrasive environments.
Matched link pitch and bushing tolerances ensure smooth sprocket engagement, reducing shock loads and premature undercarriage wear.
Applications
- Open-pit mining and quarry haul roads
- Heavy civil road construction
- Demolition and recycling yards
- Forestry and land clearing
- Agricultural and drainage applications
Frequently Asked Questions
Q1: What is the minimum order quantity for Case track link assemblies?
A: One full assembly set for standard Case models; custom specifications may require a small trial quantity.
Q2: How long is delivery?
A: Standard assemblies ship in 15–25 days after deposit confirmation. Custom or bulk orders may take 30–40 days.
Q3: What is the heat treatment depth for pins and bushings?
A: Pins and bushings are induction hardened to HRC 52–58 with a hardened case depth of 4–8 mm.
Q4: What warranty policy applies?
A: We provide a 12-month or 2,000-working-hour warranty against manufacturing defects under normal operating conditions.
Q5: Can you match OEM Case part numbers?
A: Yes. Provide your Case part number or drawing, and we will cross-reference pitch, link dimensions, and bushing size.
Q6: Do you offer custom branding and packaging?
A: Yes. OEM branding, neutral packaging, and custom markings are available for qualified orders.
Q7: How do you ensure 100% QC inspection?
A: Each assembly is checked for hardness, dimensional tolerance, forging integrity, and final fit before shipment.
Maintenance Guide
- Inspect link pitch, bushing outer diameter, and track sag every 500 working hours; record measurements to detect abnormal wear early.
- Adjust track tension according to Case specifications. Over-tensioning accelerates pin and bushing wear; under-tensioning causes derailment.
- Clean the undercarriage after operations in mud, sand, or crushed rock to prevent abrasive particles entering pin-bushing joints.
- Check track shoe bolt torque and link rail condition during routine service; replace damaged assemblies before failure occurs.
- When bushing wear reaches service limits, replace full Case track link assemblies to restore proper track pitch and sprocket contact.