Nan'an Zhongte Engineering Machinery Factory
| Payment Terms | T/T,L/C |
| Supply Ability | 10000PCS/Months |
| Delivery Time | 7-15Days |
| Packaging Details | Standard Export Packaging |
| Marketing Type | Ordinary Product |
| Specification | As customer requestment |
| Manufacturer | OEM or aftermarket manufacturers |
| Standard | ISO |
| Type | Excavator Undercarriage part |
| Finish | Smooth |
| Packing | Wooden Case |
| Surfacetreatment | Heat treated and hardened |
| Technique | Casting And Heat Treatment |
| Featurse | Durable |
| Collor | Black Yellow And Customer Required |
| Certifiion | ISO\CE |
| Brand Name | ZTMC |
| Model Number | EX220-3、EX220LC-3、EX200-2/3/5、EX230-5 |
| Certification | ISO9001 |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | T/T,L/C | Supply Ability | 10000PCS/Months |
| Delivery Time | 7-15Days | Packaging Details | Standard Export Packaging |
| Marketing Type | Ordinary Product | Specification | As customer requestment |
| Manufacturer | OEM or aftermarket manufacturers | Standard | ISO |
| Type | Excavator Undercarriage part | Finish | Smooth |
| Packing | Wooden Case | Surfacetreatment | Heat treated and hardened |
| Technique | Casting And Heat Treatment | Featurse | Durable |
| Collor | Black Yellow And Customer Required | Certifiion | ISO\CE |
| Brand Name | ZTMC | Model Number | EX220-3、EX220LC-3、EX200-2/3/5、EX230-5 |
| Certification | ISO9001 | Place of Origin | CHINA |
This carrier top roller is a 1:1 OEM direct replacement for EX220-3 excavator, matched with official part number 9062407. It fits original mounting holes and assembly dimensions perfectly without any cutting, drilling or on-site secondary modification. This undercarriage spare part stabilizes track operation and solves common walking failures for long-running EX220-3 excavator fleets.
| Item | Specification |
|---|---|
| OEM Part Number | 9062407 |
| Applicable Excavator Model | EX220-3 |
| Machining Tolerance | ±0.01mm CNC ultra-precision machining |
| Heat Treatment Process | Overall quenching + stress relief tempering |
| Applicable Working Scenarios | Muddy construction site, gravel quarry, road renovation, rough earthmoving terrain |
| Installation Type | Plug-and-play OEM direct replacement |
EX220-3 excavators are widely used in medium earthmoving projects, quarry exploitation, municipal road reconstruction and wet muddy job sites. Long-term abrasive gravel friction, muddy water erosion and continuous walking impact will cause ordinary aftermarket top rollers to suffer track vibration, track sagging, shaft stuck and premature seal oil leakage. This heavy-duty top roller is professionally manufactured to adapt to these harsh working conditions.
Adopt one-piece integrated forging steel blank to enhance overall structural strength and impact resistance. Standard dual heat treatment technology is adopted: integral quenching improves surface hardness to resist long-term gravel wear; follow-up tempering eliminates internal residual stress to prevent roller shell cracking under frequent impact. All mounting holes and matching contact surfaces are processed by high-precision CNC machines, with machining error strictly controlled within 0.01mm, fully consistent with original factory OEM standards.
A Southeast Asian machinery maintenance company maintains batches of EX220-3 old-model excavators. Previously adopted generic top rollers failed within 700-830 working hours due to incomplete heat treatment and poor machining accuracy. After switching to our OEM-spec top rollers, all parts run stably over 1800 working hours without oil leakage or shell damage, cutting annual undercarriage maintenance cost by 33%.
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...
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