SITEMA GMBH & CO KG - Clamping units and brakes

Germany

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SITEMA GMBH & CO KG
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12 Products

Germany

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Secure restraining in case of pressure drop Personal protection and accident prevention Safety Catchers are used wherever heavy lifted loads have to be secured against falling or accidentally dropping. Series K, KR, KRP ... For medium-sized, large and very large loads DGUV-approved One load direction

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Securing vertically moving masses Safety for oblique and vertical axes Typical applications include oblique-angled and vertical axes in the automation industry to provide vital protection of personnel and machinery. Series KSP For small to medium-sized loads DGUV-approved One load direction

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Secure restraining of lifted loads Compact and safe The design principle allows for the creation of highly compact clamping heads. They are ideal for applications involving purely static securing. Series KRG, KRGP For static or slow-moving masses Compact design One load direction

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Precision locking Clamping of machinery and plant components Locking units are used primarily as functional clamps for precision locking, but also for preventing unwanted movement. Series KFH, KFP, KB... Extensive standard range with numerous series for special applications, including outdoor, cylinders, machine tools DGUV and Lloyd’s approved series available Both load directions

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Generates large forces over short distances Clamping head with integrated short stroke function The PowerStroke can be used in any horizontal and vertical applications requiring large forces to be built up over short working distances.The PowerStroke can be used in any horizontal and vertical applications requiring large forces to be built up over short working distances. Series FSK, FSKP Clamping head with additional integrated short stroke function Ideal for pressing, stamping, joining, riveting, clinching, forming, embossing, closing molds etc.

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In particular applications, it can be necessary to hold high axial forces and torque at the same time. For pneumatic operation, our Locking Unit series KFPD meets this demand. Depending in the size, forces / torques of 12 kN / 120 Nm or 30 kN / 500 Nm can be held securely. The “normal” SITEMA Locking Units KFH are already able to hold smaller torque. Example: 280 Nm with, at the same time, an axial holding force of 100 kN on rod diameter 56. In case higher torque needs to be held, SITEMA’s special design series KFHD can help. With this design, it is possible to hold torque with a factor of 10 higher compared to the standard KFH unit. Example: 2800 Nm with, at the same time, an axial holding force of 100 kN on rod diameter 56. Whether the operation is pneumatic or hydraulic, the application is limited to static holding. The KFPD and KFHD can prevent a rotation from starting, but are not suitable to brake rotating masses.

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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...

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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...

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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!

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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...

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SITEMA GMBH & CO KG

G.-Braun-Straße 13

76187 Karlsruhr - Germany

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