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ApplicationOur products consist of undercarriage parts for bulldozer and excavator such as Track link,Track roller,Carrier roller,Sprocket,ldler,Track shoe,Cutting edge,End bit,Tooth Bucket,Track pin,Track bush, Engine parts,Track boit&nuts.U-bolt,Centre bolt,Wheel bolt and other related parts.
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About UsFujian Yongsheng Machinery Parts Co., Ltd. is located in Quanzhou City, Fujian Province, which is one of the most developed regions of China Machinery Manufacturing.The company was established in 2003, after approximately 10years' effort, and now it is one of the leading construction machinery parts auto parts manufacturers in CHINA.
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BlogSuppliers who pass Quality ManagementSystem Certification, and have onsitematerials or finished products inspected,as certified by independent third parties.
Angola PC300-7 Track Roller for Komatsu Excavator Parts | Forged 40Mn2 Lower Roller
Category:
Product Description
Heavy-Duty Komatsu PC300-7 Track Roller for Excavator Undercarriage
Are you tired of frequent fleet downtime caused by the short service life of undercarriage parts? Our premium PC300-7 Track Roller (also known as Bottom Roller or Lower Roller) is specifically engineered to endure the harshest working conditions. Ideal for heavy-duty mining and rugged construction projects, this roller keeps your machinery running efficiently while saving you time and money.
Advanced Technical Advantages
- Forged 40Mn2 Material: We utilize genuine, high-density 40Mn2 steel for forging. After precise induction heat treatment, the surface hardness reaches HRC 50-55, providing exceptional wear resistance and preventing shell deformation under extreme loads.
- Japanese Friction Welding: Manufactured using advanced friction welding technology imported from Japan. This ensures perfect structural balance, maximum weld strength, and 100% elimination of oil leakage risks.
- Premium COB Copper Bushings: Equipped with top-tier domestic COB copper bushings. While more expensive to source, they offer unmatched durability, superior heat dissipation, and a much longer lifecycle than standard alternatives.
Product Specifications
| Key Features | Technical Data |
|---|---|
| Product Name | Track Roller / Bottom Roller / Lower Roller |
| Compatible Machine | Komatsu PC300-7 Crawler Excavator |
| Material & Craft | Forged 40Mn2 Steel with Friction Welding |
| Surface Hardness | HRC 50-55 |
| Guaranteed Lifespan | Minimum 2,000 Working Hours |
| Warranty Service | 1-Year Factory Warranty |
Factory-Direct OEM & Custom Services
As a professional manufacturer of excavator and bulldozer undercarriage spare parts, we stand firmly behind our quality. We confidently offer a minimum 2000-hour operational guarantee along with a full one-year warranty.
Custom Blueprints Welcome: If you are sourcing rare, vintage, or customized undercarriage components, simply supply us with your technical drawings or samples. Our engineering team will provide a tailored manufacturing solution to fit your exact specifications.
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Andy Shi
No.8 Binjiang Street, Binjiang Industrial Zone, Xiamei Town, Nan An City, Quanzhou City, Fujian Province, China
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