50Mn Steel Single Flange Track Bottom Roller with HRC 40-55 Hardness for Komatsu PC200 PC300 Excavators

The YT brand single flange track bottom roller is engineered as a direct replacement for Komatsu PC200 and PC300 series excavators. Manufactured from premium 50Mn steel with advanced forging technology and precision heat treatment, this undercarriage component delivers consistent performance in demanding construction and earthmoving environments. With over 35 years of manufacturing expertise, YinTai Parts provides a cost-effective yet durable solution that matches OEM specifications for dimensional accuracy, hardness, and service life. Each roller undergoes comprehensive quality testing including ultrasonic inspection and hardness verification before shipment.

• Single flange design provides stable track guidance and prevents lateral track movement during operation
• Forged 50Mn steel body with induction hardened tread surface achieving HRC 40-55 for extended wear resistance
• Deep hardened layer of 4-10 mm ensures long service life even under heavy impact and abrasive conditions
• Precision-machined bearing bore with sealed lifetime-lubricated double-tapered roller bearings
• Direct OEM replacement for Komatsu PC200, PC200LC, PC300, PC300LC excavator models without modification
• Anti-corrosion coating applied to all non-contact surfaces for protection in wet and muddy environments
• 100% dimensional inspection and load testing before packaging ensures zero-defect delivery

YT YinTai Parts operates a fully integrated manufacturing facility in Quanzhou, Fujian, China, spanning over 20,000 square meters. Our track bottom rollers undergo a rigorous production workflow: raw 50Mn steel inspection and cutting, precision forging or casting using 800-ton presses, CNC machining for exact dimensional accuracy to within ±0.02mm tolerance, heat treatment through induction hardening achieving HRC 40-55 surface hardness with 4-10mm hardened depth, precision grinding, shot blasting for surface finish, rigorous quality inspection including ultrasonic flaw detection and dimensional verification, anti-corrosion coating application, and final assembly with sealed lifetime-lubricated bearings. Each roller passes a 100% load testing protocol before shipment.

YinTai Parts (YT Brand) has served the global undercarriage parts market for over 35 years. Our factory in Quanzhou, Fujian Province, houses advanced CNC machining centers, automated forging lines, and in-house heat treatment facilities. We hold ISO 9001:2008 certification and CE marking, ensuring compliance with international quality and safety standards. Our engineering team of 50+ technical professionals continuously improves product designs using finite element analysis and fatigue testing. We export to over 60 countries across Asia, Europe, Africa, the Middle East, and the Americas, with an annual production capacity exceeding 120,000 track rollers. Our OEM and aftermarket replacement parts are trusted by construction companies, mining operations, and equipment dealers worldwide.

YT single flange track bottom rollers for Komatsu PC200 and PC300 excavators are widely used in general construction, earthmoving projects, road building, trenching operations, and demolition work. The single flange design provides reliable track guidance in standard to medium-duty applications including residential and commercial construction sites, utility installation, landscaping, and agricultural earthmoving. These rollers are particularly suited for operators running Komatsu equipment in Southeast Asian, Middle Eastern, African, and South American markets where parts availability and durability at a competitive price point are essential.

Q1: Are YT track bottom rollers compatible with original Komatsu PC200 and PC300 excavators?
A1: Yes, our YT-PC200-300-SF bottom rollers are designed as direct OEM replacements for Komatsu PC200 and PC300 series excavators. They match the original equipment specifications for mounting dimensions, tread profile, and load capacity, ensuring seamless installation without modifications.

Q2: What material is used for manufacturing these track rollers?
A2: We use premium 50Mn forged steel for the roller body, which undergoes induction hardening on the tread surface to achieve HRC 40-55 hardness. This material selection provides excellent wear resistance and impact toughness compared to cast alternatives.

Q3: How long is the warranty period for YT bottom rollers?
A3: We provide a 12-18 month warranty from the date of shipment. This covers manufacturing defects and premature wear under normal operating conditions. Warranty claims are processed within 15 business days with relevant documentation.

Q4: Can you customize the colour of the track bottom rollers?
A4: Yes, we offer multiple colour options including standard yellow, black, or custom colours based on customer requirements. The paint coating provides anti-corrosion protection for the non-contact surfaces.

Q5: What is the minimum order quantity and delivery time?
A5: The minimum order quantity is 1 piece for samples. Regular production orders are typically delivered within 7-30 days depending on quantity. Our monthly production capacity exceeds 10,000 pieces to support bulk orders.

Q6: Do you provide technical support for installation?
A6: Yes, we provide detailed installation manuals, dimensional drawings, and technical consultation to ensure proper installation and operation of our bottom rollers in Komatsu excavators.

All YT track bottom rollers are packaged in export-grade materials for maximum protection during transit. Standard packaging includes individual plastic wrapping, foam cushioning, and sturdy wooden pallets or plywood cases. Custom packaging options are available upon request including branded boxes and bulk packaging. Our products carry a warranty period of 12-18 months from the date of shipment, covering manufacturing defects and premature wear under normal operating conditions. Warranty claims are processed within 15 business days with photographic evidence and failure analysis. We provide full technical support and replacement parts for any warranty-covered issue.