JWM series trapezoid spiral screw jacks
JWM type (trapezoidal screw type)
Low speed, low frequency, main components: precision trapezoid screw pair and high precision worm-gear pair.
Economical: Compact structure, simple operation and convenient maintenance.
JWM (trapezoid-type) is applicable to the occasion with the high load, low speed and frequent work.
Load maintenance, trapezoidal screw has self-lock function, it can hold up load without braking device when screw stops traveling.
When the obvious vibration happens and the load is impacted, the automatic interlocking is out of order sometimes, and at that time it must be equipped with the braking outside.
Considering the condition of application, and then choose suitable products.
If you need us to choose more suitable product for you, please provide us the parameter as follows:
1. Weight of Jacks: how much Kg?
2. Speed of Jacks: the moving length of the screw or screw nut per minute or per second.
3. Screw movement form: screw move or screw nut move.
4. One or several device for jacks.
5. Whether directly connect with drive motor?
Important calculation: calculation for the root diameter of screw.
2. H type and U type lifting structure is two commonly used system structures.
3. Please note, several screw jacks can be mechanical linked and electric linked.
Electric linked is used for the condition with no spare space to connect drive shaft, if connect several screw jacks to be a lifting system, you need to consider the self-locking of the whole system. Relative questions can consult Beijing Saili Transmission Co., Ltd, or add a brake device for the system, this device is independent and also can be a brake motor.