Quality Excavator Parts for Heavy Machinery

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Track Link for Cat 320D 9W-3138

Track Link for Cat 320D 9W-3138

As a professional China manufacturer and factory Quanzhou Qiansheng Heavy Industry Machinery supplies premium Track Link for Cat 320D 9W-3138, built with high-grade alloy steel and strict heat treatment. Compared with ordinary market parts, our track link features higher wear resistance, stable meshing performance and longer service life, perfectly adapting to mining, quarry and heavy construction sites. We support wholesale, OEM customization and global direct supply, with full ISO and CE certification, strict flaw detection and reliable after-warranty to cut your equipment maintenance downtime and replacement cost.
Sprocket for Doosan DH220-7 200108-00095

Sprocket for Doosan DH220-7 200108-00095

As a professional undercarriage parts manufacturer, Quanzhou Qiansheng Heavy Industry Machinery Co., Ltd. supplies high-quality Sprocket for Doosan DH220-7 200108-00095 with stable hardness, precise tooth profile, and excellent wear resistance. Our sprockets are manufactured through strict forging and heat treatment processes to ensure smooth engagement with track chains and longer service life under heavy-duty working conditions. We support OEM customization, fast delivery, and global export service for excavator parts buyers, dealers, and contractors.
Sprocket for Hitachi ZX200-3 1033091

Sprocket for Hitachi ZX200-3 1033091

Qiansheng Heavy Industry supplies high-quality Sprocket for Hitachi ZX200-3 1033091 for excavator undercarriage replacement and OEM projects. Manufactured with precision forging, heat treatment, and strict quality inspection, our sprockets provide stable transmission performance, high wear resistance, and longer service life under heavy-duty mining and construction conditions. We support bulk purchasing, OEM customization, and fast global delivery for machinery dealers and contractors.
Sprocket for Komatsu D155A 175-27-00325

Sprocket for Komatsu D155A 175-27-00325

Sprocket for Komatsu D155A 175-27-00325 is manufactured by Qiansheng Heavy Industry for demanding bulldozer working conditions such as mining, quarry, and earthmoving projects. With high-strength steel, precision machining, and advanced heat treatment, our sprocket delivers excellent wear resistance, stable transmission performance, and extended service life. We provide reliable OEM and replacement solutions with fast quotation, stable supply, and professional export service for global buyers.
Sprocket for Komatsu PC200-7 20Y-27-11582

Sprocket for Komatsu PC200-7 20Y-27-11582

Sprocket for Komatsu PC200-7 20Y-27-11582 produced by Quanzhou Qiansheng Heavy Industry Machinery Co., Ltd. ensures precise OEM fit, stable power transmission and long service life for 20-ton excavators. Factory-direct supply supports wholesale buyers with consistent quality, OEM customization, fast delivery and reduced maintenance cost for global construction and mining operations.
Sprocket for Cat D8T 278-2375

Sprocket for Cat D8T 278-2375

Sprocket for Cat D8T 278-2375 — Quanzhou Qiansheng Heavy Industry Machinery Co., Ltd. manufactures heavy-duty bulldozer sprockets using high-strength alloy steel and precision heat treatment technology to ensure superior wear resistance, stable power transmission, and extended service life. Designed for harsh mining and earthmoving conditions, this OEM-quality undercarriage part is ideal for global distributors, machinery repair companies, and wholesale buyers seeking factory-direct pricing, reliable quality, and fast shipment.

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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