Nan'an Zhongte Engineering Machinery Factory
| Payment Terms | L/C,T/T |
| Supply Ability | 10000PCS/Months |
| Delivery Time | 7-15Days |
| Packaging Details | Standard Export Packaging |
| Certifiion | ISO.CE |
| Colour | Yellow And Black Or Cusomer Required |
| Productname | Excavator Top Roller |
| Appliion | Construction works |
| Technique | Casting And Heat Treatment |
| Delivery | By Air/Express/Sea |
| Size | Follow OEM Strictly |
| Surfacetreatment | Heat treated and coated |
| Color | Black |
| Production Method | Casting;Heat Treatment |
| Brand Name | ZTMC |
| Model Number | HD450/HD512/HD450-1-2-3-4-5 |
| Certification | ISO9001 |
| Place of Origin | CHINA |
View Detail Information
Explore similar products
Komatsu PC200-5 Reinforced Front Idler Assembly OEM Size 35CrMnBH / 25CrMnB
Deep Hardened 35Mn² Steel Excavator Front Idler Assembly For CAT320D CAT336GC
Reinforced Front Excavator Idler Assembly For Sany SY215 SY135 SY365 SY485
Hitachi Excavator Front Idler Assy For EX120 EX200-5 ZAX240 EX300 EX450 EX650
Product Specification
| Payment Terms | L/C,T/T | Supply Ability | 10000PCS/Months |
| Delivery Time | 7-15Days | Packaging Details | Standard Export Packaging |
| Certifiion | ISO.CE | Colour | Yellow And Black Or Cusomer Required |
| Productname | Excavator Top Roller | Appliion | Construction works |
| Technique | Casting And Heat Treatment | Delivery | By Air/Express/Sea |
| Size | Follow OEM Strictly | Surfacetreatment | Heat treated and coated |
| Color | Black | Production Method | Casting;Heat Treatment |
| Brand Name | ZTMC | Model Number | HD450/HD512/HD450-1-2-3-4-5 |
| Certification | ISO9001 | Place of Origin | CHINA |
The HD450 track carrier roller, also named upper roller or top track roller, is a precision OEM-grade undercarriage component exclusively engineered for HD450 standard excavator track systems. It undertakes upper track tension support and linear motion guidance, eliminating track sagging and deviation during long-hour operation. All dimensions strictly follow industrial standard specs, achieving full physical interchangeability for direct replacement of original equipment parts.
This HD450 carrier roller adopts high-strength 40MnB alloy steel as the main body material, with a tensile strength of ≥800MPa and yield strength of ≥600MPa. The track contact surface undergoes integral medium-frequency induction quenching treatment, reaching a hardness range of HRC 52-58 with a 5-8mm uniform hardened layer. The built-in tin bronze bushing (ZCuSn10Pb1) features hardness above 85HB, ensuring low friction and stable lubrication performance. All finished products pass 100% magnetic particle inspection and air tightness testing to avoid internal cracks and oil leakage.
| Parameter | Specification |
|---|---|
| Material | 40MnB Alloy Steel |
| Tensile Strength | ≥800MPa |
| Yield Strength | ≥600MPa |
| Surface Hardness | HRC 52-58 |
| Hardened Layer | 5-8mm uniform |
| Bushing Material | ZCuSn10Pb1 Tin Bronze |
| Bushing Hardness | >85HB |
Adapted to HD450 excavator's full-load working conditions, this top roller stably operates in ambient temperatures from -40℃ to +80℃. It suits high-frequency continuous operation in harsh scenarios including:
With optimized friction resistance structure, it maintains stable track operation for 2000+ working hours under standard load, effectively reducing undercarriage wear frequency and equipment maintenance costs.
We provide factory direct wholesale of standard HD450 upper roller, with complete technical documents and consistent batch parameters. Sufficient spot inventory supports bulk orders and long-term contract supply. Custom parameter verification and professional technical matching services are available for global machinery distributors, repair workshops and engineering fleet suppliers.
Company Details
Business Type:
Manufacturer,Exporter
Year Established:
2015
Total Annual:
5000000-8000000
Employee Number:
100~120
Ecer Certification：
Verified Supplier
Nanan Zhongte Construction Machinery Factory is located in Quanzhou, Fujian Province, China — a city recognized by UNESCO as the starting point of the ancient Maritime Silk Road and also a vibrant metropolis with an economic output exceeding one trillion yuan. As a large enterprise specializin... Nanan Zhongte Construction Machinery Factory is located in Quanzhou, Fujian Province, China — a city recognized by UNESCO as the starting point of the ancient Maritime Silk Road and also a vibrant metropolis with an economic output exceeding one trillion yuan. As a large enterprise specializin...
Get in touch with us
Leave a Message, we will call you back quickly!