Quanzhou Mingzhu Technology Development Co., Ltd
| Manufacturing Process | Precision Forging & CNC Machining |
| Application | Mini Excavator Undercarriage System |
| Packaging Details | Export pallet packaging |
| Bearing Type | Heavy-Duty Internal Bearing |
| Supply Ability | 1500 MT/month |
| Payment Terms | L/C |
| Load Capacity | Continuous Working Load Support |
| Delivery Time | 3-5 days |
| Product Type | Excavator Top Roller / Upper Roller |
| Shaft Hardness | HRC 28–35 |
| Certification | CE、CNAS、COC、SGS、ISO |
| Model Number | SK30 |
| Brand Name | STST |
| Place of Origin | Fujian, China |
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Product Specification
| Manufacturing Process | Precision Forging & CNC Machining | Application | Mini Excavator Undercarriage System |
| Packaging Details | Export pallet packaging | Bearing Type | Heavy-Duty Internal Bearing |
| Supply Ability | 1500 MT/month | Payment Terms | L/C |
| Load Capacity | Continuous Working Load Support | Delivery Time | 3-5 days |
| Product Type | Excavator Top Roller / Upper Roller | Shaft Hardness | HRC 28–35 |
| Certification | CE、CNAS、COC、SGS、ISO | Model Number | SK30 |
| Brand Name | STST | Place of Origin | Fujian, China |
| High Light | sk30 excavator carrier roller ，sk30 top roller ，construction top roller | ||
The SK30 Top Roller is a precision-manufactured excavator undercarriage component designed to provide stable upper track chain support, smooth crawler operation, and long-lasting durability for compact excavators. Engineered for Kobelco SK30 excavators, this carrier roller delivers dependable performance in construction, landscaping, utility excavation, and earthmoving applications.
The SK30 top roller is designed with premium alloy steel materials and optimized heat treatment technology to achieve excellent durability. The reinforced structure maintains reliable performance during extended operation, reducing replacement frequency and lowering overall maintenance costs.
The heavy-duty roller body is engineered to withstand repeated impact, vibration, and working stress. The optimized internal structure improves resistance against cracking, deformation, and fatigue failure in demanding excavator applications.
The precision-ground roller surface provides smooth contact with the upper track chain, helping maintain proper chain alignment, reduce vibration, and improve overall crawler system stability.
The induction-hardened roller shell offers excellent resistance against abrasion caused by continuous track chain movement. This helps maintain surface integrity and ensures consistent performance throughout the service life.
The SK30 Top Roller is suitable for:
Feature | Customer Benefit |
|---|---|
| Long Service Life Construction | Extends replacement intervals and reduces downtime |
| Enhanced Structural Durability | Improves resistance against impact and fatigue loads |
| Hardened Roller Surface | Provides excellent abrasion resistance |
| Precision Ground Raceway | Ensures smooth track chain movement |
| Reinforced Roller Body | Supports continuous operating loads |
| Floating Duo Cone Seal | Protects internal components from contamination |
| Permanent Lubrication | Reduces maintenance requirements |
| OEM Precision Design | Ensures accurate fit and installation |
Every SK30 top roller undergoes strict quality inspection before delivery:
Our quality control system ensures consistent product performance, accurate installation, and reliable service life for excavator undercarriage applications.
The SK30 top roller supports the upper track chain, helping maintain proper chain movement, reduce track sag, and improve the stability of the excavator undercarriage system.
A reinforced roller structure provides better resistance against impact, vibration, and repeated loading, helping prevent cracks and deformation during operation.
Longer service life reduces equipment downtime, lowers replacement costs, and improves overall excavator productivity.
Enhanced Structural Durability SK30 Top RollerSK30 Top Roller, Excavator Undercarriage Carrier Rollers, Top Roller, Long Service Life Construction SK30 Top Roller
Company Details
Business Type:
Manufacturer
Year Established:
2006
Total Annual:
8000000-12000000
Employee Number:
67~120
Ecer Certification：
Verified Supplier
Quanzhou Mingzhu Technology Development Co., Ltd Quanzhou Mingzhu Technology Development Co., Ltd
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