SDR specializes in customer-oriented Bulldozer undercarriage parts manufacturing and service. We focus on providing cost-effective solutions, striving to be a reliable partner, as we believe our success lies in helping clients achieve their goals.

About SDR

Quanzhou SDR international trading company belongs to Quanzhou Huaheng Construction Machinery Co., Ltd which was founded in 2010. As a customer-oriented manufacturer and service provider of undercarriage parts, SDR aims to offer highly cost effective parts and become an reliable partner , believing that when clients reach goals, we reach ours.

Bulldozer Undercarriage Parts


Superior bulldozer undercarriage components, marrying advanced manufacturing with durability and cost-effectiveness, setting industry standards, and built to propel your success.

View Details


Premium bulldozer undercarriage parts engineered for outstanding durability, improved performance, and optimum value, crafted by Quanzhou SDR's decade-long industry expertise.

View Details

Bush & Pins

Expertly crafted undercarriage parts, balancing performance, durability, and affordability, designed to elevate your bulldozer's functionality and further your success.

View Details

Expertise, Responsiveness, and Customer Focus

At SDR, we take pride in our highly skilled and experienced service team, who are committed to providing exceptional support for all your undercarriage parts needs. Our experts have extensive industry knowledge and training, ensuring that they can efficiently diagnose and resolve any issues you may encounter.

Robust Supply Chain: Diverse, High-Quality Undercarriage Parts.

SDR pride ourselves on our robust supply chain, which enables us to offer an extensive range of bulldozer undercarriage parts across various models and types. Our strong partnerships with local industry leaders allow us to source and deliver high-quality undercarriage components that meet your specific needs and requirements.

Why Choose SDR

Highly Cost-effective Parts

Offering competitive pricing without compromising quality

Availability & Lead times

We Maintain sufficient inventory levels to meet customer demands

Warranty & After-sales support

We offer a comprehensive warranty and outstanding after-sales support for all our undercarriage parts


1. How can I be sure the part will fit my bulldozer?

Please let us know the model number or the original part number, we have our own drawing library, will provide drawings or measure the physical size and confirm with you.

2. Can you help the customers develop new components?

Sure thing. Our product and technical department is specialized in developing new products for customers. Just share your drawings, dimensions or real samples for our reference.

3. what is your packaging? How do you guarantee safe and secure delivery of products?

Goods are packed with sturdy fumigated wooden pallets normally. If you have a legally registered patent, we can pack the goods in your branded cartons after getting your official authorization file.

4. What is the time frame of goods delivery?

We have our own warehouse, generally, ready to ship product can delivered within 7-15 days. If production is required, goods will be delivered within our negotiated time after we got your deposit payment. Production time will also depend on the items and order quantities and other extra requirements.

5. what is your terms of delivery?

Normally, FOB, DDU, CIF, EXW are accepted. Extra requirement can be negotiated.

6. How long is your product’s Warranty?

Warranty time for bulldozer undercarriage parts like rollers, idlers, segment groups: under normal use condition, 1800 hours or 9 months (depending on which expire first) after goods are received. Warranty time for track chain: under normal use condition,2000 hours or 12 months (depending on which expire first) after goods are received.

Want to know more about SDR?

Scroll to Top