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 having less friction, a keeping brake is necessary: a electric motor brake or a springtime pressure brake is necessary.
These worm gear screw jacks are extremely precision and reliability, it can meet all the necessary security, cost-efficiency, and sturdiness mandates of your application. High power bronze worm gear can be used, the payloads from 0.5T to 100T . A complete of 11 sizes are available, each in a touring nut version and a simple version.
The screw jacks can be utilized separately or in groups linked with drive shafts, joints, couplings, bevel gearboxes and other mechanical components. In addition they can be driven by different motors: electric, with either AC electric motor or DC motor along with hydraulic or pneumatic motors. All these motion control products can be built in many type jacking system arrangements or configurations.
Ball screw jacks are normal where higher speeds and duty cycles are needed. Most screw jacks make use of trapezoidal screws Tr, because they’re simple, robust and inexpensive. The proportion of screw jacks that make use of 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 bigger pitches available, which permit higher stroke speeds.
A screw jack can add a machine cut lifting nut. For this model screw jack, just the bronze nut move along with the screw shaft. The lifting screw will not slide. It is certainly similar to the linear actuator functioning principle which converts rotational movement into linear motion. From this stage to understand, an electric linear actuator is usually a motorized screw jack.
The screw thread of screw jack could be acme screw and ball screw. So there are few variations of the screw jack. Commonly, machine screw jack and ball screw jack can be found in your worm screw jack engineer task. Compared with acme screw, the ball screw is more efficient as there are ball bearings between your nut and screw. The anti-friction ball bearing can boost the ball screw efficiency.