SITEMA Knowledge Base & FAQs

Safety locks provide static securing for loads infinitely variable at any position of the stroke in a mechanically stable and reliable manner. The design principle of the self-reinforcing clamping ensures an extremely high safety level.

Safety brakes secure vertically moving masses that fail due to a leak or breakdown of a pneumatic pressure system.

Locking units provide precision locking and clamping for machinery and plant components.

The PowerStroke clamping head features an integrated short stroke function. It is used in any horizontal and vertical application requiring large forces to be built up over short working distances, making it possible to build compact machines with high energy efficiency.

Safety Catchers are used wherever heavy lifted loads have to be secured against falling or accidentally dropping. To properly install a spring base on a Sitema KR-Series safety catcher, follow these steps..

The self-intensifying technology of safety catchers is a fail safe principle that is similar to a wedge system--as the load continues to increase, the safety catcher continues to hold the rod in a fixed position until hydraulic or pneumatic pressure is restored.

Safety Catchers are used wherever heavy lifted loads have to be secured against falling or accidentally dropping. To properly install a spring base on a Sitema K-Series safety catcher, follow these steps..

Typical travel without the optional Spring Base is between 5 and 15mm…with the Spring Base, an additional 6-10mm depending on the size. Full travel with the Spring Base option is can range between 10-25 mm depending on type and size. If the Catcher does not bottom out/compress the Spring Base fully, then release pressure…

If the SC is holding a load? You must first apply release pressure and then move the axis upward. At this time, you should be monitoring the “Unlocked” proximity switch indicating the status condition.

The typical reaction time of the SITEMA Safety Catcher is approximately 150msec.