Quanzhou Mingzhu Technology Development Co., Ltd
| Load Capacity | Heavy-duty Working Load |
| Heat Treatment | Induction Hardened Running Surface |
| Packaging Details | Export pallet packing |
| Multi-layer Dust Exclusion System | Helps prevent mud, sand, and debris from entering internal components |
| Supply Ability | 1500 MT/month |
| Payment Terms | T/T,D/P,D/A,L/C |
| High-temperature Operational Stability | Maintains reliable performance during prolonged heavy-duty applications |
| Delivery Time | 3-7 days |
| Material | High-strength Forged Alloy Steel |
| Dual Floating Metal Seal Design | Improves sealing efficiency and protects internal lubrication |
| Certification | CE、SGS、CNAS、COC、ISO |
| Model Number | E120B |
| Brand Name | STST |
| Place of Origin | Fujian China |
View Detail Information
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Product Specification
| Load Capacity | Heavy-duty Working Load | Heat Treatment | Induction Hardened Running Surface |
| Packaging Details | Export pallet packing | Multi-layer Dust Exclusion System | Helps prevent mud, sand, and debris from entering internal components |
| Supply Ability | 1500 MT/month | Payment Terms | T/T,D/P,D/A,L/C |
| High-temperature Operational Stability | Maintains reliable performance during prolonged heavy-duty applications | Delivery Time | 3-7 days |
| Material | High-strength Forged Alloy Steel | Dual Floating Metal Seal Design | Improves sealing efficiency and protects internal lubrication |
| Certification | CE、SGS、CNAS、COC、ISO | Model Number | E120B |
| Brand Name | STST | Place of Origin | Fujian China |
| High Light | excavator undercarriage part cat ，heavy load excavator undercarriage part ，cat e120b top roller | ||
CAT E120B Top Roller Carrier Roller, High Temperature & Sand Resistant Upper Roller, Double Dustproof Sealed Leak-Free Undercarriage Spare Parts, Heavy Duty OEM Replacement Parts for Middle East Desert Quarry & Construction Projects, In Stock Fast Shipment
The CAT E120B Carrier Roller is a high-quality replacement undercarriage component developed to keep your excavator operating efficiently in demanding environments. Installed on the upper section of the track frame, the carrier roller guides the track chain, reduces unnecessary vibration, and supports smooth machine travel.
Manufactured from premium forged alloy steel and engineered with precision machining and advanced heat treatment, this E120B top roller delivers outstanding durability, reliable sealing performance, and consistent operation under heavy workloads. It is an ideal solution for equipment owners seeking dependable aftermarket undercarriage parts with OEM-level performance.
The carrier roller, also known as the upper roller or top roller, is designed to maintain proper track chain movement while minimizing wear on the crawler system. A high-quality carrier roller helps improve machine stability, reduce maintenance frequency, and increase the working life of other undercarriage components.
The E120B carrier roller is engineered to meet the requirements of modern construction and mining operations where equipment reliability is essential.
Designed for long working hours, the E120B carrier roller provides stable upper track support during continuous excavation and travel.
Forged alloy steel enhances structural integrity and improves resistance to impact, cracking, and deformation.
The hardened rolling surface withstands abrasive conditions and helps extend the service life of both the roller and the track system.
Supports smooth circulation of the upper track chain, reducing unnecessary movement and vibration.
The floating seal assembly keeps lubricant inside while blocking water, dust, sand, and mud from entering the roller.
Manufactured with tight dimensional tolerances for quick installation and reliable compatibility with CAT E120B excavators.
The E120B carrier roller is suitable for equipment operating in:
Using a high-quality carrier roller helps:
Every E120B carrier roller is manufactured through advanced production processes to ensure durability and consistency.
Premium alloy steel is forged to improve density and mechanical strength.
High-precision machining ensures accurate dimensions and smooth roller operation.
Controlled hardening creates a wear-resistant surface while maintaining a tough internal core.
High-quality bearings, shafts, and floating seals are assembled under strict quality standards.
Every unit is tested for rotation, sealing integrity, dimensional accuracy, and overall quality before shipment.
FAQ
A carrier roller supports the upper section of the track chain, while a track roller supports the lower section that contacts the ground.
The E120B carrier roller is manufactured from forged high-strength alloy steel with a heat-treated wear surface for improved durability.
Yes. It is designed as a direct replacement for CAT E120B excavators, providing reliable fit and performance.
Yes. We offer OEM and ODM services based on drawings, samples, technical specifications, or customized branding.
WhatsApp: +86 15260795051
Gmail: shellywang030801@gmail.com
www.bulldozerpart.com
Heavy Duty, Heavy Load, Excavator Replacement Undercarriage Part, CAT120B Top Roller, High Temperature & Sand Resistant
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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