Products

Quality Excavator Parts for Heavy Machinery

Qiansheng Heavy Industry supplies durable Excavator Parts solutions for excavators and bulldozers used in mining, quarry, and construction projects. Our undercarriage parts are built with precision forging, heat treatment, and strict inspection standards to deliver longer wear life, stable performance, and reduced downtime. We support OEM and bulk purchasing needs with reliable quality, fast delivery, and professional technical service.
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4357785 Track Bottom Roller

4357785 Track Bottom Roller

Quanzhou Qiansheng Heavy Industry Machinery Co., Ltd. wholesales HIT4357785 Track Bottom Roller, supporting trial orders and bulk purchase for global excavator parts dealers. This OEM replacement fits Hitachi EX55 mini excavators perfectly. Made of 40Mn2 forged alloy steel with medium-frequency quenching, it delivers HRC52-58 tread hardness and 6-10mm hardened layer for excellent wear & impact resistance. Double floating seal blocks mud and water; 42CrMo spindle cuts friction for 40% longer service life. Full factory QC and ample stock ensure fast global delivery.
Excavator Bottom Track Roller EX55

Excavator Bottom Track Roller EX55

Quanzhou Qiansheng Heavy Industry Machinery Co., Ltd. wholesales Hitachi EX55 Track Roller, supporting trial orders and long-term bulk purchase for global excavator parts dealers. This roller perfectly fits EX55 mini excavators with standard OEM mounting size for direct installation. Made of 40Mn2 alloy steel via closed forging and medium-frequency quenching, tread hardness HRC52-58 with 6-10mm hardened layer, great wear and impact resistance on harsh construction sites. Double floating cone seal stops mud and water intrusion; 42CrMo spindle plus copper bush lowers friction, extending service life by over 40%. Full factory QC inspection, adequate stock and fast delivery for overseas buyers.
1181-00430 Bottom Roller

1181-00430 Bottom Roller

Quanzhou Qiansheng Heavy Industry Machinery Co., Ltd. supports bulk purchasing and customization of the 1181-00430 type undercarriage roller (also known as track roller), suitable for Volvo EC55 mini excavators, OEM number VOE14543561. This chassis wear part is made of high-manganese alloy steel, undergoing two heat treatments to achieve a wheel surface hardness of HRC48-55. The deep hardening layer significantly improves its wear resistance on mud, rocks, and rough terrain. A multi-layer oil seal structure effectively blocks water and sand, completely preventing oil leaks and roller jamming. CNC precision machining ensures a perfect match between the installation dimensions and original parts, allowing for direct replacement without modification. One-piece casting improves load-bearing capacity, effectively reducing track chain wear and machine downtime. Strict quality control throughout the entire process ensures stable product quality, long service life, and cost savings for global machinery dealers, repair shops, and engineering vehicle fleets.

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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