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2.Professional mold design and quick mold making.
3, Material: cast iron GG25
4, Process: cnc machining,deburring, drilling holes, tapping, grinding, CNC machining ect.
5, Application: auto parts ,
6.Secodary machining: CNC turning, Milling, Drilling, Grinding ect.
7.Applied software for specification drawings: PRO/E, Auto Cad, Slid Work, CAXA, UG, CAD/CAM/CAE
8.Surface treatment: chrome plating, sandblasting, painting, powder coating, anodizing,blasting,fuel injection ect.
9.According to your drawings , samples,even an idea to make production for your approval.
10, We have got ISO 9001 quality certificate & RoHs test report.
Specification for reference:
| Reference no. | Brake face diameter | Brake face width | Pilot diameter | Bolt circle diameter | Number of bolt holes & bolt hole size | Overall depth | Application |
| 310679060 | φ420 | 223 | φ240 | φ285 | 8-φ21 | 286 | BPW |
| 310687150 | φ420 | 240 | φ290 | φ335 | 10-φ23 | 296 | BPW |
| 310677040 | φ420 | 215 | φ290 | φ335 | 10-φ23 | 277 | BPW |
| 310967130 | φ420 | 200 | φ290 | φ335 | 10-φ23 | 226 | BPW |
| 310967190 | φ420 | 200 | φ290 | φ335 | 10-φ23 | 226 | BPW |
| 2507760130 | φ420 | 225 | φ290 | φ335 | 10-φ23 | 283 | BPW |
| 1134502 | φ420 | 200 | φ290 | φ335 | 10-φ23 | 252.5 | BPW |
| 1144502 | φ420 | 225 | φ290 | φ335 | 10-φ23 | 298 | BPW |
| 1164502 | φ420 | 240 | φ290 | φ335 | 10-φ23 | 298 | BPW |
| S360573 | φ412.75 | 266 | φ295 | φ335 | 10-φ23.5 | 320 | SCANIA |
| 21018986 | φ419 | 200 | φ282.6 | φ335 | 10-φ24 | 249 | ROR |
| 21021114 | φ419 | 236 | φ282.6 | φ335 | 10-φ24.5 | 272 | ROR |
| 21220183 | φ311 | 200 | φ183 | φ225 | 10-φ24.5 | 262 | ROR |
Note:we can according to the customer
Our product process:


Detail pictures:





About our company:
Liangshan Changzai Machinery Manufacturing CO., Ltd. is located in Liang Shan County, which is Chinese trailer (special-use vehicle) production base. We have a factory professionally design and manufacture semitrailer parts, including landing gear series, kingpin series, air tanks, suspension systems, air brake chamber series, locks of containers, etc.


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