Detail Information
| 40Mn2 40MnB 50Mn |
Finish | Smooth |
Colors | yellow |
Technique | Forging / casting |
Surface Hardness | HRC52-58,deepth:8mm-12mm |
Warranty time | 1 year |
Certification | ISO9001 |
Delivery Time | Within 15 days after contract established |

Model | A | B | C | D | E | General Model |
SK032 | 25 | | | | | |
SK55 | 35 | | | | | |
SK60 | 35 | 103 | | | | SK70,最大外径85 |
SK120 | 40 | 130 | | | | SK100,SK135 |
"SK135 | 40 | | | | | SK140 |
"SK200-3/5/SK260 | 46 | 150 | | | | "只要电喷都一样,SK200-SK260,SK260-8 |
| | | | | | SK220-5,SK200-10,SK150LC-3/4,SK210,SK235SR" |
"SK200-6/8 | 51 | 150 | | | | SK220,SK230 |
"SK320/330 | 66 | 198 | | | | "SK320,SK350,K300,SK450-6E,全长304,轴长71.卡位157.中凸宽10 |
SK450 | 66 | | | | | 全长310,轴长86,卡链条位157,中凸宽12" |
Product Description
SK200/SK230 Bulldozer Top Carrier Roller Undercarriage Parts
for Construction Machinery
1. What Is top/carrier track ?
The carrier sprocket body is meticulously crafted from high-quality materials such as 40Mn2, 40MnB, and 50Mn, which are carefully chosen to accommodate the diverse demands of various operational settings. The wheel body undergoes a precisely outlined sequence of forging and normalization, followed by an advanced spray heating and quenching process. This thorough methodology ensures that the tread surface achieves a hardness range of HRC52 to HRC62, with a hardened layer depth of 7-10mm (exhibiting a hardness of HRC45) or greater.

2. Advantages / Features
The carrier sprocket body is meticulously manufactured using premium materials, including 40Mn2, 40MnB, and 50Mn, which are thoughtfully selected to meet the varied demands of different operational environments. The wheel body undergoes a precisely defined series of forging and normalization procedures, followed by an advanced spray heating and quenching treatment. This meticulous approach guarantees that the tread surface attains a hardness level within the range of HRC52 to HRC62, accompanied by a hardened layer depth of 7-10mm (demonstrating a hardness of HRC45) or more.

Designed to withstand both tropical and cold climates, the product boasts high-quality floating oil seals and a reliable lubrication system. This guarantees that the carrier sprocket remains fully enclosed and requires no maintenance, even under harsh operating conditions or when exposed to extreme temperatures ranging from -45°C to 120°C.

4. why choose us?
(1) Our company boasts a large-scale processing facility and a spacious 1,400 square meter warehouse filled with a wide variety of products. We guarantee top-notch quality and are fully equipped to meet all your needs.
(2) We offer a comprehensive service package that encompasses purchasing assistance and container loading services, ensuring efficient procurement at competitive prices and swift responses to your inquiries.

(3) We ensure prompt deliveries through our rapid responsiveness, expedited shipping options, and a resilient inventory management system.
(4) Our after-sales service provides personalized support. Should you encounter warranty issues such as oil leakage or wheel fracture, you can submit a photo displaying the company logo for swift replacement, guaranteeing your complete satisfaction.


















Whatapp: +8615880208980
Wechat : Susanruan13
Email : doozer@doozergroup.com