Purposes: break the steel core in compound seaing strip to prevent the rubber snapping. t is apt to mold and makes usage and instalation olthe sealing strip convenient.

| Technical parameters: | |
| model | QD-24 |
| Linear velocity | 4-28m/min |
| Fracture rate | 100% |
| Motor power | 3KW |
| Speed regulation method | frequency control |