Dingtai manufactures Hyundai carrier rollers that support the upper track chain, maintain alignment, and reduce vibration in crawler excavator undercarriages.
We operate as a factory-direct manufacturer, supplying comprehensive OEM and replacement carrier roller solutions to global heavy equipment distributors and fleets.
Our rollers prevent premature track wear and downtime by resisting impact loads, abrasive debris, and flange cracking in demanding job sites.
With over 20 years of production experience, Dingtai holds ISO9001 and SGS certifications, ensuring consistent metallurgy and dimensional accuracy.
Each roller uses 35MnB forged steel and deep quenching to achieve high surface hardness, extending service life under continuous load.
Core Selling Points
- Premium 35MnB Material: Forged from 35MnB steel for higher tensile strength and impact resistance compared to standard carbon steel rollers.
- Deep Quenching/Heat Treatment: Induction-hardened tread and flange achieve HRC50-58, providing excellent wear resistance and reduced shell deformation.
- Global Brand Compatibility: Engineered to match Hyundai Robex series and other major excavator brands with OEM interchangeable part numbers.
- 100% QC Inspection: Every carrier roller is pressure-tested, dimensionally inspected, and run-tested before packaging to eliminate field failures.
Product Range
Our catalog of Hyundai Carrier Rollers includes various specifications, fully compatible with Hyundai excavators and bulldozers.
Why Choose Dingtai?
Production Technical Parameters
| Item | Specification |
|---|---|
| Material | 35MnB / 40Mn2 forged steel |
| Hardness | HRC 50–58 tread and flange |
| Heat Treatment Depth | 4–8 mm induction hardening |
| Process | Forging, CNC machining, induction hardening, assembly |
| Sealing | Lifetime lubricated floating seal |
| Certification | ISO9001 / SGS |
| Warranty | 12 months or 2,000 operating hours |
OEM & Customization
We manufacture from your drawings or Hyundai OEM part numbers, matching dimensions, bolt patterns, and hardness requirements to exact specifications.
Applicable Models
| Machine Type | Compatible Brands | Popular Series/Models |
|---|---|---|
| Crawler Excavators | Hyundai | Robex 55, 110, 210, 215, 220, 225, 260, 290, 305, 320, 335, 380, 450, 480, 520, 800 |
| Crawler Dozers / Track Machines | Hyundai-compatible | Custom carrier rollers per OEM drawing |
Delivery & Logistics
We offer flexible MOQ and factory-direct pricing with reliable FOB, CIF, and door-to-door shipping to US and global ports.
Technical Features
Carrier rollers use a lifetime lubricated floating seal design that keeps grease in and dirt, water, and abrasive fines out.
Bimetal bushings and hardened shafts reduce friction and prevent galling under slow, high-load track rotation.
Precision machining of roller shell and shaft seats ensures concentric rotation and even load distribution across the track frame.
Applications
- Mining and quarrying
- Road and highway construction
- Demolition and site preparation
- Forestry and heavy earthmoving
- Pipeline and utility installation
Frequently Asked Questions
- Q: What is the MOQ for Hyundai carrier rollers?
A: Standard models are available from 1–4 pieces; custom production quantities can be negotiated. - Q: How long is delivery?
A: Stock items ship in 7–15 days. Made-to-order production takes 25–35 days depending on quantity. - Q: What heat treatment depth do you achieve?
A: Induction hardening depth is 4–8 mm with surface hardness HRC50–58 for extended wear life. - Q: What warranty do you provide?
A: 12 months or 2,000 operating hours, whichever comes first, against manufacturing defects. - Q: How do I match my Hyundai part number?
A: Send the OEM part number, machine model, or drawing. We cross-reference and confirm dimensions before production. - Q: Can you produce non-Hyundai carrier rollers?
A: Yes, we support multiple OEM brands and custom dimensions for excavators and bulldozers. - Q: Do you offer OEM packaging?
A: Yes, neutral, Dingtai, or customer-brand packaging is available.
Maintenance Guide
- Inspect rollers every 250 operating hours for oil leaks, abnormal noise, and excessive side clearance.
- Check mounting bolts to specified torque; replace damaged bolts and lock washers immediately.
- Monitor tread and flange wear; replace if flange thickness is reduced by more than 20% or leakage occurs.
- Do not open sealed fill plugs; rollers are lifetime lubricated and opening can contaminate the cavity.
- Replace rollers in pairs on the same track frame to maintain alignment and prevent uneven track chain wear.