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Locking Units KFPC
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Technical Data Sheet SITEMA - Locking Unit KFPC Locking by Spring Force / Pneumatic Releasing TI-F21-EN-07/2012 English translation of German original Technical Data Sheet TI-F21 Locking Unit KFPC For a detailed functional description refer to”Technical Information TI-F10“. Further important practical advice is given in ”Operating Manual BA-F21“. Port: release pressure see 1 Alternative port: release pressure see 4 Proximity switch port: 1 Signal ”clamped“ see 3 Proximity switch port: 2 Signal ”released“ see 3 Due to tolerances ports 1,2 and T2 can be displaced up to +/-4°. Ports: pressure compensation Dimensions Locking Unit KFPC (CAD-Files download at www.sitema.com) 1 Subject to modification without prior notice 1 F is guaranteed as nominal (minimum) holding force for dry or mineral oil wetted shafts. p is the pressure required for releasing. The permissible working pressure is 8 bar. 2 Pneumatic operating volume. 3 Proximity switch holders are provided for standard proximity switches M12x1 with a nominal switching distance of 2 mm (flush mountable). For easier service, the proximity switch holders have a depth stop and are pre-adjusted when delivered from the factory. 4 Plugged port LL alternative to L. SITEMA GmbH & Co. KG . G.-Braun-Straße 13 . D-76187 Karlsruhe . Phone: +49(0)721/98661-0 . Fax: -11 . www.sitema.com

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Technical Data Sheet SITEMA - Locking Unit KFPC Locking by Spring Force / Pneumatic Releasing TI-F21-EN-07/2012 Operational purpose Pressure supply The Locking Unit KFPC is used as a stepless rod clamp for linear axes in machine tools. Especially for vertical axes, the dangers of unintended downward movements have to be considered as part of the general risk assessment. Here, a retaining device independent of the drive is often indispensable. Horizontal axes as well may have to be held safely or to be stopped fast and safely in case of emergency stop. The compressed air must be dried and...

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Technical Data Sheet SITEMA - Locking Unit KFPC Locking by Spring Force / Pneumatic Releasing TI-F21-EN-07/2012 Operating conditions The SITEMA Locking Unit KFPC is suitable not only for dry environment, but also for operation in the presence of coolant/lubricant spray. For this reason, all external parts and sealing surfaces are made of corrosion protected material. In case of heavy soiling conditions (grinding dust, chips, other liquids, etc.), please contact SITEMA. Viscous lubricants and grease may reduce the holding force. Regular functional checks The Locking Unit KFPC must be...

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