Mechanical Valve Actuator MVA

KFE Special customer requirements Applications Overview Presses Machine Tools Automatization + Feeders Lifting Gear + Mobile Hydraulics Production Technology Special Machinery CAD Download Contact Electric Locking Unit The electric Locking Unit KFE is used as a stepless locking device on round rods and holds axial forces in both load directions without axial play. It is used where hydraulic or pneumatic solutions are not possible. The holding force is created by the proven spring-operated clamping system as it is used in SITEMA’s hydraulically or pneumatically operated Locking Units. At a drop of the control voltage or in case of failure of the electric supply, the Locking Unit KFE clamps automatically. Therefore, it is also suitable for use in safety relevant applications. To operate the Locking Unit KFE, a supply voltage of 24 V and a control signal for the input command “clamp/release” are sufficient. The Locking Unit is self-monitoring and provides output signals...

KRM Electric Locking Unit KFE Special customer requirements Applications Overview Presses Machine Tools Automatization + Feeders Lifting Gear + Mobile Hydraulics Production Technology Special Machinery CAD Download Contact Mechanical Safety Catcher The Mechanical Safety Catcher KRM is operated purely mechanically and requires neither a hydraulic nor a pneumatic system for control. The clamping head is kept open mechanically and acts upon rupture of the suspension (rope, belt, chain, etc.). The energy of the falling mass is then used to generate the clamping force. In applications where lifted loads can be dangerous in case of rupture of the suspension device, Safety Catchers KRM are used to protect people and assure accident prevention. Safety Catchers KRM secure the load at any point of the stroke in a mechanically safe and absolutely reliable way. Due to the principle of self-reinforcing clamping, a very high level of safety is reached. Application example Packing...

Mechanical Safety Catcher KRM Electric Locking Unit KFE Special customer requirements Applications Overview Presses Machine Tools Automatization + Feeders Lifting Gear + Mobile Hydraulics Production Technology Special Machinery CAD Download Contact Auto Bleeder The SITEMA Auto Bleeder has been specially designed for the use with a SITEMA clamping head. It makes sure that the hydraulic system is constantly bled. Air bubbles in the hydraulic fluid might combust spontaneously under certain conditions (so-called Diesel effect). As a consequence, seals and sealing surfaces can be damaged, causing leakages. Clamping heads are especially susceptible for this phenomenon, as they have only a very small hydraulic volume and are not flushed through at each activation. Air can therefore easily accumulate in the clamping head. This is the reason why the usual initial bleeding at commissioning is often not enough, especially when the line leading to the clamping head points upwards...

More space to work – let the rods out! In particular applications, it can be necessary that the rod leaves the clamping head, e.g. for reasons of accessibility or restrictions regarding space that do not allow a rod that is permanently in place. Especially in applications where moulds are closed and kept closed against high forces with the SITEMA PowerStroke, it is a big advantage when the rod can leave the clamping head. Thus, the rods are no obstacle when taking finished parts out of the mould or when handling parts. With certain modifications, most of our series can be adapted as special designs to allow the rod leaving and re-entering the clamping head. We have already realised a great number of such solutions for vertical and horizontal applications. Contact us for more information!