Hitachi ZAX870 Front Idler Excavator

The front idler excavator for Hitachi ZAX870 excavator is an important component in the whole machine walking system that bears the track tension and guides the track operation. As the core part that is in direct contact with the ground and the track chain during the operation of the excavator, the front idler wheel must have super high wear resistance, impact resistance and precision matching to ensure that the excavator can work smoothly and reliably under harsh working conditions.

High-strength alloy material

• We use high-strength alloy steel as the base material. After vacuum heat treatment and deep cold treatment, the surface hardness of the material reaches HRC56±2, the internal hardness is uniform, and the core hardness is maintained at HRC42±2, which greatly improves the wear resistance and impact resistance.

Precision needle roller bearing design

• Equipped with brand needle roller bearings, combined with multi-channel sealing structure design, it can not only withstand the high load impact of the excavator, but also effectively block the intrusion of mud, water and impurities, and extend the service life. After a million cycles of durability test, it runs smoothly and the noise is less than 75dB.

High original factory matching degree

• The dimensions and tolerances are fully benchmarked against Hitachi original factory data. No additional debugging or replacement of mounting bolts is required during installation. It is plug-and-play.

Corrosion-resistant surface treatment

• The surface is sprayed with high-grade drying paint after multi-layer phosphating pretreatment, which has strong adhesion and excellent corrosion resistance. Even in the saline-alkali environment or chemical corrosion conditions at the seaside, it can maintain stable performance.

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

• Durable:Built to withstand tough conditions for long-lasting performance.
• Perfect Fit: Designed for easy installation on various excavator and bulldozer models.
• Heavy Duty: Supports heavy loads for smooth and stable operation.
• Smooth & Quiet: Minimizes vibration for smoother movement and improved traction on all terrains.
• Low Maintenance: Self-lubricating for less upkeep and more uptime.
• Weather-Resistant: Performs well in any climate, resistant to rust and extreme temperatures.

Specifications

Product Models

Production Process

From design to delivery, every process link of our products is strictly controlled to ensure product stability and durability. The following is an introduction to the basic process flow:

• Material refining
  Select high-strength bearing steel, and improve the purity of the metal through refining, deoxidation and electroslag remelting processes
  The chemical composition of the material is stable and can effectively resist fatigue cracks and impact loads
• CNC machining
  In the rough machining stage, a high-power CNC milling machine is used to quickly shape the blank and strictly control the allowance
  In the fine machining stage, a multi-axis linkage CNC lathe and grinder are used to ensure the dimensional accuracy of the outer circle, inner hole and tooth surface
• Heat treatment strengthening
  The segmented quenching + low-temperature tempering process is adopted, and the hardness is uniform, with high wear resistance and toughness
  Accurately monitor the quenching temperature and holding time to ensure that the internal structure of the parts is stable and crack-free
• Surface treatment
  Shot peening, phosphating, nitriding and other processes can be selected according to customer needs to further improve fatigue resistance
  Under special working conditions, an environmentally friendly high-temperature resistant coating is provided to delay wear and corrosion
• Strict testing and packaging
  Comprehensive use of three-coordinate measuring instruments, roundness meters and hardness testers to ensure that key dimensions and mechanical properties meet the standards
  Dust-proof and moisture-proof packaging, and customized packaging solutions can be provided according to the mode of transportation

Packaging and Shipping

Factory Advantages

Since its establishment, GFM excavator idler manufacturers has always focused on the creation and optimization of excavator chassis parts. With rich industry accumulation and flexible and efficient management systems, it continues to provide customers with stable and reliable product solutions:

In-depth industry precipitation

• Our core team has many years of experience in the development and manufacturing of excavator chassis systems, is familiar with the key technologies and usage characteristics of major brands, and can promptly integrate on-site feedback into the design and production links to continuously improve product performance.

Lean production process

• The combination of Kanban and 5S management makes the progress, quality and personnel responsibilities of each process clearly visible, ensuring that every step from raw material acceptance to finished product assembly is done with high-quality operations, improving consistency and delivery efficiency.

Technical collaborative upgrade

• Maintain cooperation with well-known domestic and foreign universities and scientific research institutions, regularly carry out new material and new process tests, especially in wear-resistant treatment and sealing technology, and has achieved multiple iterations and upgrades, providing strong support for stable operation under harsh working conditions.

Integrated quality control

• The process, quality inspection and laboratory are linked to establish a closed-loop mechanism of “on-site immediate feedback – rapid adjustment – continuous monitoring”. Any abnormalities can be analyzed and resolved in the first time to ensure that every idler wheel shipped meets strict requirements.

Response and delivery capabilities

• The flat organizational structure allows us to quickly form a dedicated project team after receiving customer needs, complete sample design, processing and testing in a short time, and efficiently carry out mass production after confirmation to ensure on-time delivery.

GFM can provide high-quality, customizable accessories for Hitachi ZAX870 excavators, allowing your equipment to maintain excellent performance in complex working conditions. If you have any personalized needs or technical questions, please feel free to contact us, we will wholeheartedly provide you with professional support.