WJYZ-25、21 Paddle hydro brake is a product introduced oversea.It is open type drift pliers hydraulic brake device consisted with components of a WZJB30 paddle pump,a YZ1.00(YZ2.00)hydro-pliers,and some joints.
Appearance and dimensions：
| type | nominal pressure MPa | braking torque Nn | braking wheel d. mm | level | plunger pump | pliers | ||||
|
L1mm |
L2mm | cylinder diameter mm | stroke mm | displacement m | cylinder diameter mm | stroke mm | ||||
| WJYZ-25 | 4 | 2500 | 500 | 210 | 55 | 27 | 30 | 16.8 | 67 | 1 |
| WJYZ-21 | 4 | 2100 | 300 | 210 | 55 | 27 | 30 | 16.8 | 54 | 0.5 |
