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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Komatsu PC20 Top Roller Mini Excavator Undercarriage Parts Wholesale

Komatsu PC20 Top Roller Mini Excavator Undercarriage Parts Wholesale

FAJX PARTS Komatsu PC20 top roller is built for mini excavator undercarriages, suited to mud, gravel, demolition and landscaping work — wear-resistant and leak-proof. Exported to 30+ countries across Europe, the Americas, the Middle East and Southeast Asia, serving equipment rental firms and dealers. Forged steel body with floating oil seals, hardness and sealing tested, dimensions matching OEM specs. In-house factory output exceeds 100,000 undercarriage parts per year; OEM/ODM available. 5,000+ pieces in stock, ships within 48 hours. Wholesale inquiries welcome.
9237948 Carrier Roller for Komatsu PC20

9237948 Carrier Roller for Komatsu PC20

9237948 Carrier Roller for Komatsu PC20 mini excavator. Ideal for orchards, greenhouses and confined-site projects. FAJX PARTS dual heat treatment R&D. Digital factory with full production capacity. Sold to 86 countries, sufficient stock ready for fast shipment. Many successful global cooperation cases. Factory direct supply & custom service available.
CAT 320 Excavator Undercarriage Idler 113-2907

CAT 320 Excavator Undercarriage Idler 113-2907

FAJX PARTS CAT320 idler wheel 113‑2907 fits CAT320C,320D,323D for mining & construction projects. 18‑year manufacturer with university‑joint R&D, ISO,CE,SGS full‑process quality inspection. Exported to 57 countries, ample ready stock, 10000‑pcs annual production capacity. Support OEM,ODM & small‑batch orders. Adopt 40Mn2 vacuum heat‑treatment for reliable heavy‑duty harsh‑terrain performance.
CAT 320 Idler Wheel for Excavator undercarriage

CAT 320 Idler Wheel for Excavator undercarriage

FAJX PARTS CAT320 idler wheel adapts to muddy, frigid and high-temperature construction sites. Exported to 57 countries with abundant global cooperation cases. Co-developed with Fujian universities, service life 35% longer than peers. 30,000㎡ standardized factory with digital workshop & infrared inspection. Available for retail, small wholesale, OEM & ODM. Ready stock ensures stable supply for varied orders.
24100N6510F1 Carrier Roller for Kobelco SK60 Undercarriage

24100N6510F1 Carrier Roller for Kobelco SK60 Undercarriage

FAJX PARTS 24100N6510F1 Top Roller fits Kobelco SK60, SK60-3 & SK60-6 excavators for construction and earthmoving. Forged with strict QC for excellent wear resistance. With strong production capacity, we keep ready stock for fast shipping. Supplying dealers in 58 countries, we accept trial and bulk orders with reliable quality.
SK60 Top Roller for Kobelco Undercarriage Parts

SK60 Top Roller for Kobelco Undercarriage Parts

FAJX Parts manufactures 200,000pcs SK60 Top Roller for Kobelco Undercarriage Parts. FAJX Parts have the full in‑house production line: casting, precision turning, CNC processing, assembly and testing are all completed in our factory. Mixed order & any order quantity are accepted, all products are available in stock.

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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