Description
Standard crank
Use:
- for standard use when not limited by space
- lowering and lifting is provided by turning of crank
- load is secured in any position
Ratchet crank (RK)
Use:
- for use in cramped places
- allows jack up and lower loads by pendulum motion of crank back and forth hereby decreases demands on workspace
- lifting and lowering enabled by simple change of reverse lever
- load is secured in any position
Ratchet crank-lever (RKP)
Use:
- suitable in cramped places
- safety device against overloading
- ratchet crank – lever enables at once:
- jack up and lower loads by turning of crank, by pendulum motion of crank or prolonged lever
- change of crank to lever is provided by simple transposition of handle by 90o
User´s advantage:
- the function of crank is mainly usable for quick pre-set of unloaded jack lift or for manipulation with loads of low weight
- change of crank to prolonged lever when lifting loads close to safe working load enables decrease operating force thereby improve operating comfort
- operating force is decreased by c.40% in position LEVER compared to position CRANK
| Type crank | Standart crank | Ratchet crank |
Ratchet crank-lever |
|||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Load capacity | 2,5t | 5t | 10t | 16t | 20t | 2,5t | 5t | 10t | 16t | 20t | 2,5t | 5t | 10t | 16t | 20t | |
| Arm length (mm) | in position crank | 250 | 300 | 300 | 400 | 400 | 250 | 300 | 300 | 400 | 400 | 250 | 300 | 300 | 300 | 300 |
| in position lever | – | – | – | – | – | – | – | – | – | – | 475 | 525 | 525 | 600 | 600 | |
| Squaring, dimension (mm) | 16×16 | 18×18 | 16×16 | 18×18 | 16×16 | 18×18 | ||||||||||
Cranks are equipped with brake. Shafts are collapsible.
