The BJ worm gear screw jack is designed in several different versions and is currently found in countless solutions within Healthcare, the Food Industry and other industries.
All worm equipment screw jacks may since standard be supplied with easy-to-clean and yellow-colored chromated areas with stainless steel spindles and meals approved lubricants.
If there are special requirements for the look, we are very happy to offer adaptations even in smaller quantities.
The spindles can be protected from dirt and water through the use of protecting tubes.
Ball-screw jacks include a high-efficiency ball screw and nut that reduces the mandatory insight torque to about one-third the torque required for machine-screw jacks. 300 Series Stainless-metal screw jack are for conditions where corrosion level of resistance is essential. Stainless-metal lifting threads are precision created to Class 2-C (centralizing) thread profiles.
The design is compact, simple and its own modular construction allows great flexibility in the choice of gear, mounting options, flanges, oil types and surface area treatments. The modular style is also ideal if there is a dependence on customisations where the gearbox must be optimized for particular needs. That is the reason why we can produce worm equipment screw jacks adapted to your desires at an attractive price.
The worm equipment screw jack permits axial positioning and together with our other items within the field of encoders, couplings and connecting shafts, it allows for running more axial movements synchronously.
By connecting individual screw jacks with drive shafts lifting systems could be realized in a straightforward way. With the rich accessories many problems can be solved with the typical program.
There are two basic types of screw jacks which a few additional styles originate. Initial, there are translating screw jacks. These types of screw jacks use a lift shaft or screw that travels into or out from the worm gear container. The lift shaft can either protrude from the installation flange aspect of the gearbox or from the very best aspect of the worm gear container. Secondly, are rotating type screw jacks. In this design, the lift shaft continues to be 
stationary and a lifting nut moves along the lift shaft. Much like the translating screw jacks the screw may also protrude down from the installation flange or up from the top of the jack. To produce translation of the lift shaft or nut, both configurations must be secured to prevent rotation. Where that is unfeasible, keyed screw jacks are an option.
Each model’s worm-gear-set arrangement uses an alloy-steel worm, which drives a high-strength bronze worm gear (drive sleeve). The worm shaft is supported on antifriction tapered roller bearings with exterior seals to prevent lack of lubrication. Machine-screw jacks feature a lifting shaft made of alloy steel with a minimum tensile strength of 95,000 psi. Lead accuracy is around 0.004 in./ft.