Product Details
Detail Information
| 40Mn |
depth | Primary induction hardening |
Colors | Black |
Technique | casting |
Surface Hardness | HRC53-57 |
Warranty time | 6 months |
Certification | ISO,CE |
Delivery Time | Within 25-30 days after contract established |
Product Description
DH55/258/300 Excavator Front Idler For Construction parts
1. What Is front idler ?
The idler is vital for ensuring the smooth operation of the track links and preventing their displacement. It also supports a portion of the weight, strengthening the track links and reducing the ground pressure they generate. A central arm supports the track link, enabling its movement in both directions. A small gap between the idler and the track roller enhances alignment and directional stability, ensuring efficient and precise performance.

2. Advantages / Features
High Quality
The product showcases a wheel body characterized by a distinctive box-shaped design, meticulously crafted through casting processes that utilize either alkaline phenol-formaldehyde resin sand or sodium silicate sand as the base material. This material undergoes normalization, while the rail surface undergoes medium-frequency induction hardening to attain a surface hardness ranging from HRC48 to HRC58, accompanied by a hardening depth of at least 4-6mm (reaching HRC45 at this depth). This ensures that the product can withstand high impacts and wear, even under harsh operational conditions.
High Precision
Manufactured on a state-of-the-art CK5110 large-scale precision CNC vertical lathe, the product adheres to rigorous standards for both internal and external dimensional accuracy and surface finish. This ensures a consistent level of quality in the finished guide wheel, thereby enhancing the durability of the installed components and maintaining system stability.
High Durability
The guide wheel features a unique integral design, combined with precise heat treatment specifications, which provide high strength, impact resistance, and an exceptionally hard tread surface with substantial depth in the hardening layer. This contributes to an extended service life for the guide wheel, ensuring reliable support for the track. Additionally, the incorporation of high-quality sealing components further bolsters the reliability of the sealing performance, guaranteeing smooth and stable operation of the entire system.

3. Design/Structure

Model | A | B | C | General Model |
DH80 | 170 | 40 | 16 | 专用 |
DH130/150 | 260 | 70 | 17 | DH150.EX100-1(70) |
DH220 | 288 | 65 | 16*60细 | DH220(20T系列全部通用),DH225-7,徐工200 |
DH258 | 318 | 65 | 16 | |
H280/DH300 | 325 | 70 | 16*60 | 总宽358.轮体宽190,臂长195,宽120 |
DH280-3 | 325 | 70 | 16*60 | 臂长155.宽117 |
DH258 | 320 | 65 | 16*60 | 专用 |
H360/DH370 | 360 | 65 | 20*70粗 | DH370/R290/R305,臂长350,宽120 |
DH420 | 360 | 65 | 20*70 | DH500 |
4. why choose us?
(1) Our company boasts a substantial internal processing facility, complemented by a spacious 1,400-square-meter warehouse filled with a wide variety of thousands of top-notch products. We assure you that our inventory is customized to fulfill your unique needs and is always at your service.
(2) We offer a comprehensive and streamlined service package, encompassing purchasing assistance and container loading services. This guarantees cost-effective procurement and addresses all your concerns with prompt, efficient, and professional responses tailored to your specific needs.
(3) By leveraging our prompt responsiveness, expedited shipping services, and robust inventory management system, we guarantee timely and efficient deliveries that perfectly match your expectations and requirements, ensuring smooth and seamless logistics operations.
(4) Our comprehensive after-sales service provides personalized and dedicated support to give you and your customers assurance. In case of any warranty issues, such as oil leakage or wheel fracture, simply submit a photo featuring the company logo, and we will swiftly replace the defective wheel with a new one to ensure your full satisfaction and continued trust in our products.

5. Manufacturing Processes

6. Hot Sale Products


7.Customer Feedback

8. FAQ

9.Contact Information
Whatapp: +86 15880208980
Wechat : Susanruan13
Email : doozer@doozergroup.com
Company Profile
Xiamen Doozer Industries Co., Ltd. is a leading supplier of
high-quality undercarriage parts for excavators and bulldozers in
China. .With over 16 years of experience, our brand DZR is widely
recognized for its superior quality and excellent service.
We boast extensive expertise in OEM and After Markets for various
construction machinery, including PC1250, EX1000, D9N,D11N, D475,
EC950,and other models. Our specialty lies in offering a diverse
range of crawler-type undercarriage and correlated replacement
parts such as track rollers, carrier rollers, idler assemblies,
recoil spring assemblies, track link assemblies, track shoes,
sprockets, segments, excavator buckets, bucket teeth &
adaptors, cutting edges, end bits, excavator boom arms/sticks,
bucket pins & bushes, bolts, and nuts for excavators and
bulldozers.
Our products are compatible with most major makes such as
Caterpillar, Komatsu, Hitachi, Kobelco, JCB, Volvo, Kato, Daewoo,
Doosan, Hyundai, Samsung, and more. We export a majority of our
products to Europe, Southeast Asia, Middle East, South America, and
other regions.
Our motto "Quality First" reflects our commitment to continuously
improving our production techniques, ensuring that we provide
better products at competitive prices. We welcome customers from
all over the world to consult with us and visit our company to
create mutual benefit and a successful business relationship
together.
We believe that our experience, quality products, and excellent
customer service will make us your best partner for construction
machinery parts.