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 effectively than various other machine screw actuators
No self-locking! worm screw jack Because of the lack of friction, a keeping brake is essential: a engine brake or a springtime pressure brake is required.
These worm equipment screw jacks are extremely precision and reliability, it can meet all the necessary security, cost-efficiency, and toughness mandates of the application. High power bronze worm gear is used, the payloads from 0.5T to 100T . A complete of 11 sizes can be found, each in a touring nut version and a simple version.
The screw jacks can be utilized separately or in organizations connected with drive shafts, joints, couplings, bevel gearboxes and other mechanical components. They also can 
be driven by different motors: electrical, with either AC motor or DC motor in addition to hydraulic or pneumatic motors. All these motion control items could be built-in many type jacking system arrangements or configurations.
Ball screw jacks are common where higher speeds and duty cycles are needed. Most screw jacks use trapezoidal screws Tr, because they are basic, 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 higher pitches obtainable, which permit higher stroke speeds.
A screw jack can truly add a machine cut lifting nut. For this model screw jack, just the bronze nut move together with the screw shaft. The lifting screw does not slide. It is certainly similar to the linear actuator working theory which converts rotational motion into linear motion. Out of this point to understand, a power linear actuator is definitely a motorized screw jack.
The screw thread of screw jack could be acme screw and ball screw. So are there few variants 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 is better as there are ball bearings between the nut and screw. The anti-friction ball bearing can boost the ball screw efficiency.