| | 型号 | 说明 |
 | RBJM8 | M8 articulated rod-end ball joint. Maximum lifting capacity of 600kg. For STG100 and SL up to 50kg capacity. |
| RBJM12 | M12 articulated rod-end ball joint. Maximum lifting capacity of 1000kg. For STG500, STG1000 and SL capacity from 100 to 1000kg. |