Worm Gear electrical ball screw jack, anti-Rotation and higher pitches available
Translating(traveling screw) and 
rotating (traveling nut) configurations
Move loads and apply force more efficiently than additional machine screw actuators
No self-locking! Because of the lack of friction, a holding brake is necessary: a engine brake or a springtime pressure brake is necessary.
These worm equipment screw jacks are extremely precision and reliability, it could meet all the necessary security, cost-efficiency, and sturdiness mandates of the application. High power bronze worm gear can be used, the payloads from 0.5T to 100T . A total of 11 sizes are available, each in a journeying nut version and a simple version.
The screw jacks can be used separately or in groups connected with drive shafts, joints, couplings, bevel gearboxes and additional mechanical components. They also could be driven by Worm Gear Jack different motors: electric, with either AC motor or DC motor in addition to hydraulic or pneumatic motors. All these motion control products can be built in many type jacking program arrangements or configurations.
Ball screw jacks are common where higher speeds and duty cycles are needed. Most screw jacks make use of trapezoidal screws Tr, because they are simple, robust and inexpensive. The proportion of screw jacks that use ball screws is nevertheless constantly increasing. The reasons for this are primarily their pitch accuracy, their high efficiency (much less power consumption and less heat generation) and the higher pitches offered, which permit higher stroke speeds.
A screw jack can truly add a machine cut lifting nut. For this model screw jack, only the bronze nut move along with the screw shaft. The lifting screw does not slide. It is definitely like the linear actuator working principle which converts rotational motion into linear motion. Out of this point to understand, a power linear actuator is usually a motorized screw jack.
The screw thread of screw jack can be acme screw and ball screw. So are there few variations of the screw jack. Commonly, machine screw jack and ball screw jack can be found in your engineer task. Compared with acme screw, the ball screw can be more efficient as there are ball bearings between the nut and screw. The anti-friction ball bearing can raise the ball screw efficiency.