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Quality Excavator Parts for Heavy Machinery

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Idler for Volvo EC210 1181-00030

Idler for Volvo EC210 1181-00030

Looking for a durable and factory-direct Idler for Volvo EC210 1181-00030? At Quanzhou Qiansheng Heavy Industry Machinery Co., Ltd., we manufacture high-strength undercarriage parts designed for demanding excavation conditions. Our Volvo EC210 idler delivers stable track guidance, excellent impact resistance, and longer service life, helping dealers and contractors reduce downtime and maintenance costs while securing reliable wholesale supply.
Idler for Caterpillar D8R 244-0879

Idler for Caterpillar D8R 244-0879

As a professional undercarriage parts manufacturer, Quanzhou Qiansheng Heavy Industry Machinery Co., Ltd. supplies durable Idler for Caterpillar D8R 244-0879 solutions for mining, quarry, and heavy earthmoving applications. Built with reinforced alloy steel structure, deep heat treatment, and strict leak-proof sealing technology, our Qiansheng idler helps reduce unexpected downtime and improves track stability under severe working conditions. Factory-direct supply, OEM customization, and fast global delivery are available for distributors, contractors, and equipment fleet buyers.
Idler for Caterpillar 325D 115-3696

Idler for Caterpillar 325D 115-3696

Looking for a reliable Idler for Caterpillar 325D 115-3696 with stable quality and factory-direct pricing? At Quanzhou Qiansheng Heavy Industry Machinery Co., Ltd., we manufacture heavy-duty front idlers designed for CAT 325D excavators working in mining, quarry, and construction environments. Built with high-strength alloy steel, deep heat treatment, and OEM-size precision machining, our idlers help reduce track deviation, absorb impact loads, and extend undercarriage service life for global equipment dealers and fleet buyers.
Idler for Komatsu D155A 175-30-00450

Idler for Komatsu D155A 175-30-00450

As a professional manufacturer and factory supplier, Quanzhou Qiansheng Heavy Industry provides premium Idler for Komatsu D155A 175-30-00450 perfectly matched for Komatsu D155A bulldozer. Made of high-strength alloy steel with reinforced casting structure and HRC 52-58 hardness treatment, this 175-30-00450 idler features sealed lifelong lubrication, over 2000 working hours service life. With ISO 9001 and CE certification, we offer factory direct sales, OEM customization, sample support and global after-sales warranty, ideal for mining, quarry and heavy earthmoving heavy-duty working conditions.
Idler for Komatsu PC200-7 20Y-30-00030

Idler for Komatsu PC200-7 20Y-30-00030

Built for demanding excavation and earthmoving conditions, the Idler for Komatsu PC200-7 20Y-30-00030 from Quanzhou Qiansheng Heavy Industry Machinery Co., Ltd. delivers stable track guidance, strong impact resistance, and extended service life. Manufactured with reinforced alloy steel structure and precision heat treatment technology, this front idler helps reduce track derailment, minimize undercarriage wear, and lower maintenance costs for global equipment owners, dealers, and aftermarket buyers seeking reliable factory-direct solutions.
Track Roller for CAT D8T 246-0775/246-0779

Track Roller for CAT D8T 246-0775/246-0779

We supply Track Roller for CAT D8T 246-0775/246-0779 directly from Quanzhou Qiansheng Heavy Industry Machinery Co., Ltd., a source factory specialized in excavator and bulldozer undercarriage parts. Built for CAT D8T heavy-duty working conditions, this roller ensures stable track alignment, reduced wear, and longer service life in mining and earthmoving operations.

At Quanzhou Qiansheng Heavy Industry Machinery Co., Ltd., we specialize in manufacturing high-performance Excavator Parts components for excavators and bulldozers operating in demanding environments. With years of production experience in undercarriage parts, we understand that durability, wear resistance, and stable performance directly affect machine efficiency and maintenance costs.

Complete Undercarriage Solutions

Our factory focuses on producing complete undercarriage solutions, including:

Track Bottom Roller Carrier Roller Front Idler Sprocket Track Chain Track Links Track Group Top Roller

Every Excavator Parts component is manufactured under strict production standards using high-strength raw materials, advanced forging technology, precision CNC machining, and professional heat treatment processes. Compared with ordinary market products, our parts provide better resistance to cracking, deformation, and premature wear during heavy-duty operation.

Designed for Harsh Working Conditions

Construction machinery often works under extreme pressure in mining sites, rock quarries, muddy environments, and high-load earthmoving projects. Poor-quality undercarriage parts can easily lead to abnormal wear, unstable movement, and costly downtime.

Based on real operating conditions from global customers, our Excavator Parts is designed to improve:

  • Wear resistance under continuous operation
  • Impact resistance on rough terrain
  • Machine stability during heavy excavation
  • Service life of rollers, idlers, and track groups
  • Fuel efficiency by reducing abnormal friction

Many customers choose our products because they need dependable undercarriage parts that can continue working under long daily operating hours without frequent replacement.

Main Components

Track Bottom Roller

Our track bottom rollers are manufactured with high-strength alloy steel and advanced heat treatment technology. The roller shell hardness and internal structure are carefully controlled to ensure long-term durability under high-impact working conditions.

Advantages:

  • Smooth track operation
  • Reduced rail wear
  • Strong sealing performance
  • Longer service life in muddy and rocky environments

Carrier Roller / Top Roller

The carrier roller supports track stability and helps reduce unnecessary vibration during machine movement. We improve internal sealing and lubrication performance to reduce oil leakage and extend operating hours.

Suitable for:

  • Excavators
  • Bulldozers
  • Crawler construction equipment

Idler Wheel / Front Idler

The front idler plays an important role in guiding the track chain and maintaining track tension. Our idlers are forged with durable steel materials to improve structural strength and crack resistance.

Features:

  • Stable guiding performance
  • High wear resistance
  • Reduced maintenance frequency
  • Better performance under heavy loads

Sprocket / Drive Sprocket

Our sprockets are precisely machined to ensure accurate tooth engagement with track links. Proper matching between sprocket and track chain helps reduce abnormal wear and improves overall undercarriage efficiency.

Why customers prefer our sprockets:

  • Accurate tooth profile
  • Stable transmission
  • Lower operating noise
  • Improved service life of track chains

Track Chain / Track Links / Track Group

Track chains directly influence machine movement and stability. We use advanced heat treatment and pin processing technology to improve tensile strength and wear resistance.

Applications include:

  • Mining excavators
  • Bulldozers
  • Quarry machinery
  • Heavy crawler equipment

Why Customers Choose Qiansheng Heavy Industry

Real Manufacturing Experience

Unlike trading companies, we are a direct manufacturer with practical production experience in undercarriage parts. Our team understands material selection, heat treatment control, machining accuracy, and assembly requirements for different machinery models.

Strict Quality Inspection

Each Excavator Parts product passes through multiple inspection procedures before shipment, including:

  • Material inspection
  • Dimensional testing
  • Hardness testing
  • Welding inspection
  • Assembly inspection

This helps ensure product consistency and reduces installation problems for customers.

Stable Supply Capacity

With mature production lines and experienced workers, we can support:

  • OEM production
  • Bulk orders
  • Customized dimensions
  • Flexible packaging requirements
  • Stable delivery schedules

Better Cost Performance

Some low-priced undercarriage products on the market may reduce production costs by simplifying heat treatment or using lower-grade materials. While the initial price may appear attractive, the actual replacement frequency and maintenance cost are often much higher.

Our goal is to provide customers with a balanced solution between durability, performance, and long-term operating cost.

Suitable Machinery Brands

Our Excavator Parts are compatible with many popular construction machinery brands, including: Caterpillar, Komatsu, Hitachi, Hyundai, Volvo, Doosan, Kobelco. We can also produce according to customer drawings or OEM specifications.

Professional Service From Inquiry to Delivery

We believe reliable products should be supported by responsible service.

Before Order

Fast quotation support
Product selection assistance
Technical confirmation
OEM consultation

During Production

Production progress updates
Quality inspection tracking
Flexible shipping arrangements

After Delivery

Installation guidance
Technical support
Warranty assistance
Responsive after-sales service

Our team works closely with customers to help reduce downtime and improve equipment operating efficiency.

Applications

Our Excavator Parts are widely used in: Mining projects, Quarry operations, Road construction, Infrastructure engineering, Earthmoving projects, Heavy industrial applications.

Whether working in high-temperature, muddy, rocky, or abrasive conditions, our undercarriage parts are designed to deliver reliable performance and stable operation.

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