Product Details
Detail Information
| 40MnB |
Finish | Smooth |
Colors | Black |
Technique | Forging / casting |
Surface Hardness | HRC52-58,deepth:8mm-12mm |
Warranty time | 1 year |
Certification | ISO9001 |
Delivery Time | Within 15 days after contract established |
Product Description
EX30/55/100/200/400 Excavator Track Top Carrier Roller Undercarriage Parts
for Construction Machinery
1. What Is top/carrier track ?
The track, which is situated on the uppermost or carrier area of heavy equipment, fulfills vital functions: it bears weight, provides necessary traction, and serves as a shock absorber. Routine maintenance of this track is crucial in ensuring its seamless operation and extending its operational life.

2. Advantages / Features
(1) An internal circulation system of high efficiency has been implemented.
(2) The shaft is made from top-quality round steel or forged steel.
(3) Composed of high-hardness, wear-resistant chrome-molybdenum alloy, the floating oil seal is further strengthened by a resilient elastic rubber O-ring.
(4) The rail undergoes a depth quenching process to bolster its durability.
(5) We utilize high-quality bimetallic copper sleeves.

3. Design/Structure

model | A | B | C | D | E | General Model |
EX30 | 30 | | | | | 总长150,轴长48,轮体85 |
EX55 | 30 | 148 | | | | PC40-7,ZAX60 |
EX60 | | 105 | 35 | 94 | 12*40粗 | EX75UR-3 |
EX70/EC55 | 30 | 90 | | | | "EC55, 山河70,柳工906,柳工907,柳工908 |
| | | | | | 全长155,轴长45,中凸宽40,直径105,卡链条位直径85,宽25," |
EX120 | | 120 | 35 | 110 | 12*40粗 | EX100 |
EX200-1 | | | 35 | 124 | | 大轮体,卡链条位130,凸位156,EX220 |
"EX200-2/3 | | 150 | 35 | 124 | 16*45粗 | "直喷,电喷不一样,215,260,厦工820/821/822,SK07N2 |
EX200-5/6" | | | | | | EX150LC-5,EX160LC-5,EX220-2/3/5,EX230LC-5,SK07,ZX200" |
EX300-1 | | | 35 | 124 | | 大轮体.EX350 |
EX300-3/5/EX270 | | | 35 | 124 | 16*45粗 | 小轮体,EX300-2/3/5,EX270-5. |
EX400-1 | | 190 | 65 | 140 | 18*50粗 | EX450. |
4. why choose us?
We Understand That Product Quality Is The Cornerstone Of An Enterprise's Survival And Growth, Which Is Why We Place Great Importance On This Aspect. From Careful Selection Of Raw Materials To Meticulous Product Design, And Finally To Comprehensive Packaging, We Strictly Adhere To An Internationally Advanced Production Framework And Implement Comprehensive, Multi-Layered Quality Control Measures. This Persistent Pursuit Of Quality Has Garnered Our Products A Favorable Reputation In The Market.
So Far, We Have Successfully Obtained ISO9001 International Quality Certification, Which Confirms That Our Quality Management System Meets International Advanced Standards. Furthermore, We Have Also Acquired The ISO 14001 Environmental Management System Certificate, Further Demonstrating Our Commitment And Achievements In Environmental Protection.
5. Manufacturing Processes

6. Hot Sale Products


7.Customer Feedback

8. FAQ
9.Contact Information
Whatapp: +8615880208980
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.