Factory Direct Track Bottom Roller Supply for Your Business

At Quanzhou Qiansheng Heavy Industry Machinery Co., Ltd., we manufacture and supply high-performance Track Bottom Roller for excavators and bulldozers used in mining, construction, quarry, and earthmoving projects. 

Our focus is not only on producing parts, but on delivering stable performance in real working conditions.

15+ Years Manufacturing Experience | Compatible with Hitachi, CAT, Komatsu, Volvo

  • Material: 40Mn2 Forged Alloy Steel
  • Hardness: HRC52-58 (6-10mm hardened layer)
  • Seal: Double Floating Cone Seal (prevents mud & water)
  • Warranty: 12-Month Quality Guarantee
🏭 Factory Direct 📦 OEM/ODM Available 🌍 Global Export
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208‑30‑00464 High‑Quality Excavator Track Roller for Komatsu PC500

208‑30‑00464 High‑Quality Excavator Track Roller for Komatsu PC500

FAJX‑manufactured excavator undercarriage parts are exported to 58 countries and regions worldwide. Among them, the 208‑30‑00464 High‑Quality Excavator Track Roller for Komatsu PC500 is one of our flagship products.
PC500LC-10 Track Roller

PC500LC-10 Track Roller

The PC500LC-10 Track Roller for PC500-10 excavators boasts excellent operational stability and adapts well to various complex working conditions, making it one of the mainstream excavator chassis components on the market.
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.

What is a Track Bottom Roller and Why It Matters

A Track Bottom Roller is one of the most critical undercarriage components supporting the machine weight and guiding the track chain during movement. It carries constant impact from rough ground, heavy load pressure, and long working hours.

In real applications such as mining sites or stone quarries, inferior rollers often lead to:

  • Uneven track wear
  • Oil leakage from seals
  • Roller cracking under impact
  • Machine downtime and higher maintenance cost

Our Manufacturing Experience

We have been producing undercarriage parts for many years in Quanzhou, a major manufacturing base for construction machinery parts in China. Our production system is built around real industrial requirements, not laboratory conditions.

For Carrier Roller production, we control every key process internally:

  • Forging of roller shell for high strength structure
  • CNC machining for precise tolerance control
  • Heat treatment to improve wear resistance and hardness balance
  • Assembly with strict sealing system installation
  • Final inspection under load simulation conditions

Each Track Bottom Roller is tested before delivery to ensure it can perform in continuous heavy-duty operation.

Why Our Track Bottom Roller Performs Better in Real Work Conditions

Many buyers compare only price, but experienced contractors focus on lifespan and failure rate.

Compared with common market products, our Track Bottom Roller offers:

1. Stronger wear resistance

We use optimized heat treatment process to ensure the roller surface maintains hardness while the inner structure remains tough, reducing cracking risk.

2. Better sealing system

Oil leakage is one of the most common failure reasons in undercarriage parts. Our sealing structure is designed for long working hours in dusty and muddy environments.

3. Stable load performance

Our rollers are designed to carry continuous heavy load without deformation, suitable for mining and rocky ground conditions.

4. Longer service life

Based on feedback from long-term customers, our Carrier Roller generally performs longer than standard market versions under the same working conditions.

Application Experience from Real Projects

Our Track Bottom Roller is widely used in:

  • Excavators working in mining areas
  • Bulldozers used in land leveling and road construction
  • Quarry operations with high impact load
  • Infrastructure and earthmoving projects

Many of our long-term customers operate machines in harsh environments such as the Middle East, Southeast Asia, and South America, where high temperature, dust, and heavy load conditions are common. Product stability under these conditions is one of the reasons they continue cooperation with us.

OEM and Compatibility Advantage

We supply Track Bottom Roller compatible with many well-known machinery models. Our production supports both standard specifications and OEM customization.

We work with customers who require:

  • Exact dimensional matching
  • Brand-specific undercarriage replacement parts
  • Custom hardness and sealing requirements

This flexibility allows dealers and distributors to reduce inventory pressure while maintaining wide model coverage.

Quality Control You Can Verify

We believe product reliability must be traceable and measurable. 

  • Dimensional inspection
  • Hardness testing after heat treatment
  • Sealing performance check
  • Rotation smoothness test
  • Random batch sampling for durability control

Quality records are maintained for each batch, allowing customers to trace production consistency.

Service Support from Factory Direct Supply

As a manufacturer, we provide direct support without unnecessary middle steps.

Before sales:

We help customers confirm correct Carrier Roller specifications based on machine model and working environment.

During production:

We provide updates on manufacturing progress and shipment planning.

After shipment:

We support installation guidance and handle replacement issues for quality-related problems.

Our goal is to reduce downtime for end users and improve equipment operating efficiency.

Why Customers Choose Us for Track Bottom Roller Supply

Customers continue working with us not only because of the product, but because of stability in long-term supply:

  • Consistent production quality control system
  • Experience in exporting undercarriage parts globally
  • Stable lead time for bulk orders
  • Strong technical understanding of excavator and bulldozer undercarriage systems
  • Real manufacturing background in Quanzhou industrial base

We do not position ourselves as a trading company. We operate as a manufacturer focusing on undercarriage systems.

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Frequently Asked Questions

What is the minimum order quantity (MOQ)?

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Our MOQ is 1 piece for sample orders, and we support bulk orders with flexible quantities. Contact us to discuss your specific needs.

What is the lead time for bulk orders?

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Standard lead time is 15-30 days depending on order quantity and customization requirements. We will confirm the exact timeline when you place your order.

Do you provide OEM/ODM service?

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Yes, we fully support OEM/ODM customization. We can produce rollers according to your drawings, specifications, and brand requirements. Please share your design with us.

How do you guarantee product quality?

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We have a complete QC system covering all stages: raw material inspection, forging process control, heat treatment testing, CNC machining precision check, final assembly and load testing. Each batch is traceable.

What is your warranty policy?

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We offer a 12-month warranty against manufacturing defects. If any quality issues occur during normal use, we will provide free replacement or repair according to the warranty terms.

Which brands/models are your rollers compatible with?

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Our track bottom rollers are compatible with major brands including Hitachi, CAT, Komatsu, Volvo, Doosan, Hyundai, Kobelco, Sumitomo, and Sany. Please provide your machine model and OEM number for exact matching.
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