Product Overview
Samsung carrier rollers support the upper track frame and maintain proper track alignment during excavator operation, preventing excessive track sag and premature wear.
Dingtai is a factory-direct manufacturer providing complete OEM manufacturing services for Samsung undercarriage components to distributors and fleet owners across North America.
Our carrier rollers resist premature wear and flange failure, significantly reducing unplanned downtime and the total cost of undercarriage ownership on demanding job sites.
With 20+ years of manufacturing experience and ISO9001 certification, Dingtai delivers consistent batch-to-batch quality for heavy machinery fleets worldwide.
Constructed from 35MnB steel with deep quenching to HRC 50-58, our rollers withstand abrasive conditions and heavy impact loads in mining operations.
Core Selling Points
- Premium 35MnB Material: Forged from high-grade 35MnB steel, providing superior tensile strength and resistance to impact fatigue in heavy-duty digging and lifting applications.
- Deep Quenching/Heat Treatment: Through-hardened to HRC 50-58 with induction quenching, delivering unmatched wear resistance and extending service intervals beyond conventional aftermarket carrier rollers.
- ISO9001/SGS Certified: Every production batch undergoes rigorous dimensional inspection under ISO9001 quality management systems, with independent SGS third-party material verification reports available upon request.
- OEM Capabilities: We manufacture to original Samsung engineering drawings, ensuring exact dimensional specifications and seamless compatibility with existing undercarriage systems and track chains.
Product Specifications
Our catalog of Samsung Carrier Roller includes various specifications, fully compatible with Samsung SE and MX series excavators and bulldozers.
Why Choose Dingtai?
1. Production Technical Parameters
| Parameter | Specification |
|---|---|
| Material | 35MnB Forged Steel |
| Surface Hardness | HRC 50-58 (Deep Quenched) |
| Manufacturing Process | Precision Forging + CNC Machining |
| Seal Type | Floating Seal / Labyrinth Seal |
| Bushing | Bimetal Bronze Bushing |
| Lubrication | Permanent Oil-Filled |
| Certification | ISO9001:2015, SGS |
| Warranty | 12 Months or 2,000 Hours |
2. OEM & Customization
We match customer-provided drawings and sample dimensions exactly, manufacturing carrier rollers to original Samsung specifications with strict tolerance control.
3. Applicable Models
| Machine Type | Compatible Brands | Popular Series/Models |
|---|---|---|
| Excavator | Samsung | SE130, SE210, SE220, SE250, SE280 |
| Excavator | Samsung | MX series (MX132, MX162, MX222) |
| Excavator | Volvo (Samsung-derived) | EC210, EC240, EC290, EC360 |
| Bulldozer | Samsung | SD series undercarriage components |
4. Delivery & Logistics
Factory-direct pricing with reliable container or LCL shipping. Minimum order quantity starts at 20 units for standard specifications.
Technical Features
The floating seal design prevents lubricant leakage and contamination ingress, maintaining internal oil integrity even under continuous immersion in muddy or abrasive environments.
Bimetal bronze bushings provide low-friction rotation and excellent load distribution, reducing internal wear and extending the carrier roller service life beyond standard steel bushings.
Deep induction quenching creates a hardened wear surface while maintaining a tough core, delivering an optimal balance of surface hardness and structural ductility.
Applications
- Mining and quarrying operations with high-abrasion ground conditions
- Road construction and highway infrastructure projects
- Heavy civil earthmoving and land clearing
- Demolition and scrap handling applications
- Agricultural land reclamation and drainage projects
Frequently Asked Questions
Q1: What is the minimum order quantity (MOQ) for Samsung carrier rollers?
A: Standard MOQ is 20 units per specification. Trial orders of smaller quantities may be accommodated; contact our sales team for current availability.
Q2: What is your typical delivery time?
A: Standard production lead time is 20-30 days after order confirmation. Express production within 15 days is available for urgent requirements.
Q3: How deep is the heat treatment on your carrier rollers?
A: The induction quenched layer measures 8-12 mm deep, achieving HRC 50-58 on the tread surface while maintaining a ductile core.
Q4: What is your warranty policy?
A: We provide a 12-month or 2,000-hour warranty against manufacturing defects. Warranty claims require inspection of the returned component and operating condition documentation.
Q5: Can you match my existing Samsung part numbers?
A: Yes. Submit your OEM part number or engineering drawing, and we will cross-reference against our production database to confirm exact dimensional compatibility.
Q6: Are these carrier rollers compatible with Volvo excavators that originated from Samsung?
A: Yes. Early Volvo EC series models (EC210, EC240, EC290, EC360) share Samsung undercarriage architecture. Specify your model when ordering.
Q7: What lubrication do your carrier rollers use?
A: Permanent oil-filled lubrication with floating seals. The oil reservoir is sealed for life and requires no routine greasing or maintenance.
Q8: Do you provide material certification documents?
A: Yes. SGS material test reports and dimensional inspection records are provided with each shipment upon request at no additional cost.
Maintenance Guide
- Installation: Ensure mounting bolts are torqued to OEM specifications. Verify roller alignment with track frame before final tightening.
- Inspection: Check for oil leakage around seal areas every 250 operating hours. Any leakage indicates seal failure requiring replacement.
- Wear Monitoring: Measure tread depth periodically. Replace when tread wear exceeds 30% of original thickness or flange wear becomes visible.
- Replacement Interval: Carrier rollers typically last 3,000-5,000 operating hours depending on ground conditions and machine application intensity.