Xiamen Doozer supplies replacement track adjuster assemblies for Hitachi EX1200 series excavators. Also known as track tensioner or track adjuster and recoil spring assemblies, these components help maintain proper track tension and absorb shock loads transmitted through the front idler and undercarriage.

Large excavators working in mining, quarrying, and heavy construction face substantial impact and loading during travel. A damaged or malfunctioning track adjuster can contribute to incorrect track tension, abnormal undercarriage wear, and increased maintenance downtime. Replacing the assembly with a correctly matched component helps support stable track operation.

Hitachi EX1200 machines have multiple generations and configurations. Parts references differ between versions, so buyers should confirm the exact model and serial number before ordering.

Key Features and Advantages

• Track Tension Control: Helps maintain suitable track tension when correctly installed and adjusted.
• Shock Absorption: The recoil spring helps absorb loads transmitted through the front idler.
• Heavy Equipment Application: Intended for large excavator undercarriage maintenance.
• Assembly Matching Support: Helps buyers identify the required configuration using machine details and existing part references.
• Replacement Solution: Suitable for maintenance of compatible Hitachi EX1200 excavators.
• B2B Supply: Supports parts distributors, wholesalers, mining contractors, and equipment repair businesses.

Product Specifications

Part references are model-specific. Confirm the machine serial number and assembly configuration before purchase.

Applications and Maintenance

Track adjuster assemblies are used on crawler excavators in mining, quarrying, earthmoving, and heavy construction. Inspect the adjuster for hydraulic or grease leakage, damaged seals, abnormal spring condition, and signs of deformation. Check track tension according to the machine manufacturer’s service instructions.

The track adjuster works together with the front idler, track chain, rollers, and track frame. If track tension cannot be maintained, inspect the complete system to identify the underlying cause rather than replacing parts without diagnosis.

Safety notice: The recoil spring stores substantial energy. Disassembly can cause severe injury if the spring is released improperly. Service should be carried out by trained technicians using the specified tools and procedures.

Before ordering, provide the EX1200 model version, serial number, and existing part number to help confirm compatibility.

Why Choose Xiamen Doozer?

Xiamen Doozer supplies replacement undercarriage parts for excavators and bulldozers, serving international distributors, wholesalers, mining businesses, and repair workshops.

Send us your machine details or photos of the existing track adjuster assembly. Our team can help check the required configuration and provide a quotation.

Website: https://www.doozerparts.com/
WhatsApp: +86 158 8020 8980