XIAMEN YINTAI MACHINERY CO., LTD
| Payment Terms | L/C,T/T |
| Supply Ability | 10000 PCS/Month |
| Delivery Time | 5-30Days |
| Packaging Details | Standard Export Packaging |
| Model NO. | PC300-8 |
| Application | Excavator |
| Condition | New |
| Finish | Smooth |
| Material | 50Mn |
| Technique | Forging/Casting |
| Color | Black/Yellow |
| Brand Name | YT |
| Model Number | PC300-8 |
| Place of Origin | China |
| Certification | CE, ISO9001: 2000 |
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Product Specification
| Payment Terms | L/C,T/T | Supply Ability | 10000 PCS/Month |
| Delivery Time | 5-30Days | Packaging Details | Standard Export Packaging |
| Model NO. | PC300-8 | Application | Excavator |
| Condition | New | Finish | Smooth |
| Material | 50Mn | Technique | Forging/Casting |
| Color | Black/Yellow | Brand Name | YT |
| Model Number | PC300-8 | Place of Origin | China |
| Certification | CE, ISO9001: 2000 | ||
| High Light | Heavy Duty Track Bottom Roller ，Komatsu Track Bottom Roller ，PC300-8 Track Bottom Roller | ||
As the backbone of excavator undercarriage systems, track rollers bear the full weight of the machine while enduring extreme ground impacts. Accounting for over 70% of operational resistance, their quality directly determines undercarriage longevity and machine efficiency. Unlike conventional welded rollers prone to structural failure, our friction-welded rollers utilize advanced metallurgical bonding to create seamless, ultra-durable assemblies – delivering 35% longer service life than industry standards.
Every roller undergoes 0.6Mpa pressurized gas testing – exceeding OEM specifications to eliminate oil leakage and guarantee 10,000+ hour lifespans in mud, sand, and abrasive environments.
Precision-forged shells undergo deep-case hardening and quench-tempering treatments, achieving:
Re-engineered internal raceways and tapered bearings distribute load forces 30% more efficiently, preventing:
✅ Genuine Komatsu DNA
Direct-from-factory components include:
100% OEM-matched dimensions
Forged alloy steel certified to JIS G4051
raceable heat batch documentation
3. The Cost-Smart Solution for Mining & Heavy Earthmoving
When your PC300-8 faces:
⚠️ Rocky terrain degradation
⚠️ High-hour maintenance costs
⚠️ Unplanned downtime
Our rollers deliver field-proven ROI:
➤ 22% lower rolling resistance = reduced fuel consumption
➤ Interchangeable with Komatsu 70G-75-21100
➤ 3-Year structural warranty
Replace Weakness with Unstoppable Traction
Factory-direct pricing | ISO 9001 certified manufacturing | Global logistics support
* World-class quality
* Factory sale directly with reasonable price
* 35 years experience in Excavator & Bulldozer spare parts manufacturing
* Flexible payment terms including T/T, L/C and so on
* Fast delivery within 30 days after contract established
* Professional sales team, quality inspection, and report, maritime logistics guidance
* After-sale services: video technical support,24h online support
Company Details
Business Type:
Manufacturer,Exporter
Year Established:
2011
Total Annual:
10Million-20Million
Employee Number:
50~100
Ecer Certification：
Verified Supplier
XIAMEN YINTAI MACHINERY CO., LTD. is loed in the beautiful port city of Xiamen. It is a manufacturing enterprise which is focusing on research and development, production and trade of construction machinery parts. YinTai cooperates with Chinese famous large steel mills, such as Fujian S... XIAMEN YINTAI MACHINERY CO., LTD. is loed in the beautiful port city of Xiamen. It is a manufacturing enterprise which is focusing on research and development, production and trade of construction machinery parts. YinTai cooperates with Chinese famous large steel mills, such as Fujian S...
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