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Premium Undercarriage &
Excavator Spare Parts

Specializing in track rollers, carrier rollers, idlers, sprockets, track links, and forged castings for excavators, bulldozers, crushers, and heavy machinery.

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About Shengjiu Machinery

Quanzhou Shengjiu Machinery Co., Ltd is located in Quanzhou, Fujian, China — a renowned industrial hub. We specialize in the development, manufacturing (casting, forging, heat treatment), and global sales of high-performance spare parts for heavy equipment.

Our product range includes complete undercarriage systems such as track rollers, carrier rollers, idlers, sprockets, track links, rubber tracks, buckets, track guards, adjusters, pins, bushings, and more — compatible with excavators, bulldozers, cranes, pavers, and drilling rigs.

Precision Engineering
Global Shipment
OEM/ODM Support
Quality Assurance
D11 Track Roller D11 Front Idler Sprocket Track Link

Our Products

High-durability undercarriage and excavator spare parts engineered for performance and longevity.

D11 Track Roller

D11 Track Roller

Heavy-duty track roller for Caterpillar D11 bulldozer. Precision-sealed for extended service life.

Undercarriage
D11 Front Idler

D11 Front Idler

Robust front idler assembly designed for D11 undercarriage systems. Resists wear and impact.

Idler
Sprocket

D20 Sprocket

High-tensile sprocket for D20 track systems. Optimized tooth profile for smooth chain engagement.

Sprocket
Track Link

D8 Track Link

Forged track link for D8 bulldozers. Heat-treated for maximum strength and wear resistance.

Track Link
PC100 Carrier Roller

PC100 Carrier Roller

Top roller for Komatsu PC100 excavators. Sealed bearing design for dust and moisture resistance.

Carrier Roller
CX210 Track Link

CX210 Track Link

Replacement track link for Doosan CX210. Compatible with OEM specifications.

Track Link
CAT320 Track Roller

CAT320 Track Roller

Heavy-duty roller for Caterpillar 320 series excavators. Built for extreme conditions.

Track Roller
D65 Front Idler

D65 Front Idler

Front idler for D65 bulldozers. Precision-machined for optimal alignment and tracking.

Idler
Sprocket Assembly

Universal Sprocket

Replacement sprocket for multiple brands. Hardened teeth for extended chain life.

Sprocket
EC210 Excavator Parts

EC210 Excavator Spare Parts

Complete spare parts kit for Volvo EC210. Includes pins, bushings, and track shoes.

Others
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Why Choose SEJU Parts?

We combine advanced manufacturing with rigorous quality control to deliver reliable, long-lasting components.

Advanced Manufacturing

Casting, forging, and heat treatment processes ensure superior strength and durability.

Quality Assurance

Each part undergoes strict inspection to meet international standards.

Global Shipment

Fast and reliable delivery to over 50 countries via sea, air, and express.

OEM/ODM Support

Custom design and production based on client specifications and drawings.

15+
Years Experience
50+
Countries Served
10K+
Parts Monthly
99.2%
Customer Satisfaction

Frequently Asked Questions

What is a track roller?
A track roller, also known as an idler roller, is a critical component in the undercarriage system of excavators and bulldozers. It supports the track and ensures smooth movement over rough terrain. Our track rollers are precision-engineered for durability and performance.
Do you offer custom parts?
Yes, we provide OEM and ODM services. You can send us your drawings, samples, or specifications, and we will manufacture parts according to your requirements.
What is the delivery time?
Standard orders are processed within 7–15 days. Custom orders may take 20–30 days depending on complexity. We offer sea, air, and express shipping options.
How do I place an order?
You can contact us via WhatsApp, email, or through the official website. Provide the model number, quantity, and shipping destination for a quick quote.
Are your parts compatible with OEM machines?
Yes, all our parts are designed to meet or exceed OEM specifications. We ensure perfect fitment for Caterpillar, Komatsu, Doosan, Volvo, and other major brands.

Get in Touch

Reach out for quotes, technical support, or custom manufacturing inquiries.

Phone

+86 139 6037 1209

Email

[email protected]

[email protected]

WhatsApp

+86 152 6081 0925

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