Wholesale Hitachi ZAX870 Excavator Top Roller 4638433

GFM excavator top roller, developed specifically for Hitachi ZAX870 large excavators, uses forged alloy steel core and multi-layer sealing technology to precisely match the original equipment track system. Through dynamic load simulation testing, the product’s load-bearing capacity has been increased by 20%, effectively dispersing the impact pressure when the excavator is moving. The surface high-frequency quenching process makes the hardness reach HRC55-60, and with the embedded lubrication channel, it greatly reduces abnormal wear in harsh working conditions such as deserts and mines, and extends the overall service life of the crawler group by more than 30%.

The interior of the carrier roller adopts a labyrinth seal structure + imported nitrile rubber oil seal to avoid bearing jamming caused by mud and sand intrusion. The modular design supports rapid disassembly and assembly, reducing equipment downtime. Verified by a third-party laboratory, the radial runout error of the GFM carrier roller is still less than 0.08mm after 2000 hours of continuous operation, significantly reducing the risk of track deviation and subsequent maintenance frequency, helping users save more than 15% of annual maintenance costs.

Product Description

• MOQ: 1 PC
• Payment Method: T/T
• Brand: GFM
• Condition: New
• Color: Yellow, Black or Customized
• Lead Time: 30 days
• Warranty: 1 Year
• Service: OEM or ODM
• Place of Origin: Fujian, China
• Application: Excavator
• Packing: Standard Export Wooden Pallet

Features

• Long-Lasting Durability: Crafted from high-grade, wear-resistant steel for maximum strength and extended lifespan.
• Sealed and Lubricated: Fully sealed design keeps out dirt, water, and contaminants, minimizing wear and maintenance.
• Smooth Operation: Precision-engineered to provide efficient and stable support for the upper portion of the track.
• Corrosion Resistance: Corrosion-resistant surface treatments ensure reliable operation in harsh environments.
• Fits Various Models: Designed to fit a wide range of excavator and bulldozer models for various applications.
• Proven Toughness: Tested to perform reliably under extreme conditions, reducing downtime and increasing productivity.

At GFM Factory, our carrier rollers are built to optimize your machinery’s performance, ensuring smoother track operations and extended equipment life.

Product Models

Production Process

Packaging and Shipping

Factory Advantages

GFM has been wholesale carrier rollers for 14 years. The GFM factory is equipped with a full-process CNC machining center and a spectrum detector to ensure that the chemical composition and tensile strength (≥1200MPa) of each roller meet the standards. The production line is ISO 9001:2015 certified and uses the MES system to achieve digital quality control from raw material traceability to finished product packaging. The product has passed the CE certification and supports the one-stop supply needs of OEM/aftermarkets in North America, Southeast Asia and other regions.

Why choose GFM as your carrier roller supplier?

• High quality guarantee: All drag chain wheel products are made of high-quality materials and are rigorously tested to ensure stable performance in various harsh environments.
• Technical advantages: Years of industry experience and professional team support make our products lead the industry in wear resistance and strength.
• Flexible customization: Support mass production and personalized customization services to meet the diverse needs of customers.
• Perfect service: From product consultation to after-sales support, GFM always takes customer satisfaction as the core and provides a full range of service guarantees.