We manufacture complete Kobelco track groups, including links, shoes, pins, bushings and rollers, forming the core undercarriage assembly.
Factory-direct production supports full OEM manufacturing, custom dimensions, and private labeling for distributors, dealers and heavy equipment fleets worldwide.
This track group prevents premature downtime with heat-treated track links and sealed components that resist abrasive wear, stretching and breakage.
With over 20 years of experience and ISO9001/SGS certified quality control, we deliver consistent parts for demanding undercarriage rebuilds.
Premium 35MnB steel and deep quenching produce 50-55 HRC hardness, extending service life under high-impact track loads.
Core Selling Points
- Global Brand Compatibility: Direct replacement for common Kobelco SK and SR series excavators, matching original pitch, link height and shoe width specifications.
- Premium 35MnB Material: Track links and shoes use 35MnB steel for high tensile strength and resistance to bending, cracking and abrasive wear.
- Deep Quenching/Heat Treatment: Raceways, pins and bushings are deep hardened to 50-55 HRC, minimizing pitch elongation and pin-bushing failure.
- 100% QC Inspection: Each track group receives dimensional checks, hardness testing and visual weld inspection before shipment, ensuring zero-defect delivery.
Product Catalog
Our catalog of Kobelco track groups includes various specifications, fully compatible with Kobelco SK and SR series excavators.
Why Choose Dingtai?
Production Technical Parameters
| Parameter | Specification |
|---|---|
| Material | 35MnB steel links and shoes; 42CrMo pins; 20CrMnTi bushings |
| Hardness | 50-55 HRC raceways; 55-60 HRC pins/bushings |
| Process | Precision forging, CNC machining, deep quenching, tempering, assembly |
| Certification | ISO9001:2015, SGS inspection reports |
| Warranty | 12 months or 2,000 hours under standard conditions |
OEM & Customization
Send drawings or samples. We produce custom link pitch, shoe width, bolt patterns and color to meet OEM specifications.
Applicable Models
| Machine Type | Compatible Brands | Popular Series/Models |
|---|---|---|
| Crawler Excavators | Kobelco | SK200-8, SK210LC-10, SK260-9, SK330-10, SK350LC-10, SK500LC-10 |
| Compact / Short Radius Excavators | Kobelco | SK35SR, SK45SRX, SK55SRX, SK75UR, SK135SR |
| Heavy Excavators | Kobelco | SK460, SK480LC, SK850LC |
Delivery & Logistics
Factory-direct pricing with flexible MOQ. We pack track groups in export-grade steel frames and ship reliably to major US ports.
Technical Features
Track groups are assembled as sealed and lubricated chains. Oil film between pin and bushing reduces internal friction and blocks abrasive sand entry.
Bimetal bushings combine a hardened steel outer shell with a sintered bronze alloy layer, improving load distribution and wear resistance.
Link raceways undergo induction deep quenching to 50-55 HRC. This controls pitch elongation and extends full undercarriage life.
Applications
- Mining and quarrying
- Road construction
- Heavy civil earthmoving
- Demolition and scrap handling
- Forestry and site preparation
Frequently Asked Questions
What is the minimum order quantity for Kobelco track groups?
MOQ is usually one set per specification. Mixed models and container loads are accepted for volume pricing.
How long is delivery?
Standard production takes 15-25 days after deposit. Stocked items ship within 3-7 days.
What heat treatment depth do track links receive?
Induction-hardened raceways typically reach 3-6 mm depth with 50-55 HRC surface hardness.
What warranty coverage is provided?
We offer 12 months or 2,000 hours against manufacturing defects, excluding normal wear and misuse.
Can you match my Kobelco part number?
Yes. Provide the OEM part number or drawing, and we verify pitch, link height, shoe width and bolt pattern.
Are track groups compatible with aftermarket undercarriages?
Most parts fit original and aftermarket undercarriages if key dimensions match. We confirm before production.
Do you sell individual track group components?
Yes, we supply complete track groups and spare links, shoes, pins, bushings and bolts separately.
Maintenance Guide
- Inspect track tension daily. Incorrect sag accelerates pin, bushing and idler wear.
- Check shoe bolts weekly. Loose bolts cause shoe cracking and link elongation under load.
- Monitor pin and bushing wear. Replace when internal wear exceeds 20-25% of original diameter.
- Keep undercarriage clean. Mud and rock packing increase friction and accelerate component wear.
- Rotate or replace track groups at 2,500-4,000 hours depending on ground conditions and loading.