Products

For CATERPILLAR (CAT) 305.5 Track Recoil Spring Excavator Parts

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Description

Technical Support

Material & Manufacturing

Description

Product Maker:	Fulian Machinery Co., Ltd.
Production Capacity:	50000 PCs/Month
Quality Certification:	ISO 9001:2008
OEM/ODM Orders:	Accept
Delivery Port:	Xiamen, Guangzhou, Ningbo…(Any Port in China)
Lead Time:	24-48 Working Hours for In-Stock Products (25-45 Days for Bulk Orders)

for komatsu pc20 track recoil spring excavator parts

Product Description

The Excavator Track Adjuster Spring, also called track recoil spring or track tensioner spring, is an essential undercarriage component used to absorb impact and maintain proper track tension in crawler machines. This single spring design is built from high-strength alloy steel, heat-treated for durability, and tested for over 500,000 compression cycles. It ensures smooth track movement, prevents derailment, and protects other undercarriage parts such as idlers, sprockets, and rollers.

Key Features

High-Strength Material – 60Si2Mn alloy spring steel with shot peening treatment for fatigue resistance
OEM Standard Performance – Direct replacement for CAT, Komatsu, Hitachi, Volvo, and Doosan track recoil springs
Heavy Load Capacity – Handles continuous compression force under 35 MPa hydraulic cylinder pressure
Extended Service Life – Resists cracking, deformation, and sagging even in mining and quarry environments
Precision Heat Treatment – Oil-quenched and tempered for uniform hardness and elasticity

Technical Parameters

Parameter	Specification
Material	60Si2Mn Alloy Steel
Coil Diameter	22 – 30mm (Customizable)
Free Length	480 – 720mm
Max Compression Load	>120 kN
Heat Treatment	Oil Quenched + Tempered
Fatigue Life	>500,000 Cycles

Applications

Maintains correct track tension when combined with hydraulic track adjuster cylinder
Absorbs impact forces from rocky or uneven terrain
Prevents track slack and reduces risk of derailment
Minimizes wear on undercarriage parts such as idlers, sprockets, and bottom rollers
Ideal for mining, forestry, road building, and heavy-duty excavation projects

Why Choose Our Track Adjuster Assembly?

Durability Guaranteed – Each spring is fatigue-tested before shipping
Factory Direct Supply – OEM and aftermarket options available
Custom Manufacturing – Available in single spring or dual spring assemblies
Warranty Service – 12 months warranty against cracks or deformation

Technical Support

Our Services and Technical Support

We provide more than just replacement parts. Our goal is to support your business with reliable service, practical technical assistance, and flexible order solutions.

Pre-Sales Technical Support

Our technical team assists you in confirming the correct part based on machine model, OEM reference, dimensions, and working conditions. This helps ensure proper fitment and reduces the risk of installation or performance issues.

Flexible MOQ & Order Support

We offer flexible MOQ solutions to support distributors, dealers, and project-based orders. Low MOQ is available for selected products, making it easier to test the market or support urgent replacement needs. With fast dispatch in as little as 24 hours and reliable door-to-door delivery, we help you reduce downtime and keep your projects moving on schedule.

Customization Services

Customized specifications are available, including dimensions, materials, heat treatment, and sealing solutions, based on different applications such as construction, mining, or rental operations.

After-Sales Technical Assistance

We provide installation guidance, usage recommendations, and troubleshooting support. Our team responds quickly to help resolve technical issues and minimize equipment downtime.

Stable Supply & Reliable Lead Time

With stable production capacity and long-term export experience, we ensure consistent quality, clear lead times, and dependable supply for global customers.

Long-Term Partner Support

We work closely with distributors and equipment owners, offering continuous technical advice and service support throughout the full service life of the product.

Material & Manufacturing

Our Product’s Material and Manufacturing Advantages

Our products are designed and manufactured to meet the highest standards, ensuring durability, reliability, and optimal performance under demanding working conditions.

High-Quality Materials

We use premium-grade steel, alloys, and durable rubber compounds, carefully selected for wear resistance and long service life. Every component is tested to withstand heavy loads, extreme temperatures, and harsh working environments.

Advanced Manufacturing Process

All parts are produced using precision CNC machinery, forging, and heat-treatment processes. Our manufacturing techniques ensure consistent quality, tight tolerances, and superior mechanical strength.

Sealing and Component Design

Unique sealing systems and reinforced structures reduce wear and prevent contamination, extending the lifespan of parts such as rollers, sprockets, and track chains. Every detail is engineered for reliability and performance.

Customization for Specific Applications

We offer tailored solutions for different machines, working conditions, and industry requirements. Free technical drawings are provided, and sample-based customization is supported, allowing us to match exact specifications. Customized materials, dimensions, and production processes are available for construction, mining, or rental fleets.

Quality Assurance

Every product is thoroughly inspected before shipment, ensuring 100% compliance with OEM standards. Our quality control system guarantees consistent performance and long-term reliability.

Long-Term Value

By combining high-quality materials, advanced manufacturing, and rigorous testing, our products provide superior durability, reduced maintenance costs, and improved uptime for your equipment.