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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...

Rod leaving clamping head Auto Bleeder 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 Mechanical Valve Actuator MVA Secure the rupture of a chain with the full comfort of a pneumatic SITEMA clamping head When a load has to be secured against rupture of a suspension device (e.g. a chain), many customers use our Mechanical Safety Catcher KRM. This unit has the advantage to hold the load immediately upon rupture of the suspension device. Additional sensors to detect rupture of a chain are not necessary. On the other hand, it is not possible to activate the KRM in a user-defined position without rupture of the suspension device, e.g. for maintenance purposes. Here, the Mechanical Valve Actuator MVA comes to your rescue. It is simply put between the suspension device and the...

Mechanical Valve Actuator MVA Rod leaving clamping head Auto Bleeder 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 Electropneumatic module EPM The Electropneumatic Module EPM acts as interface between (electrical) power supply / control and a pneumatic SITEMA clamping head. All pneumatic SITEMA clamping heads with an operating pressure of up to 4 bar and an operating volume of up to 220 cm³ can be pneumatically controlled by the EPM. It is also possible to operate several clamping heads in parallel with one EPM. The EPM is controlled by a 24V supply and switching voltage. The outlet pressure which is required to open or keep open a pneumatic clamping head is controlled by a control signal. If the voltage fails or the input signal is switched off, the pressure is...