F60 Dimensions, type KFHA
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Technical Data Sheet TI-F60 Locking Unit KFHA for standard cylinders according to ISO 6020/2 For a detailed functional description refer to "Technical Information TI-F10“. Further important practical advice is given in "Operating Manual BA-F60". Type Ident.-No. Subject to modification without prior notice Delivery including centering ring A or B matching the cylinder mounting style. IMPORTANT: Please indicate the desired type in your order (see chapter ’’Mounting to a cylinder”, one page 4). Mounting without centering ring is not permissible. Ring C for mounting without cylinder on request. Order example for Locking Unit KFHA 40-18, 50 bar, with centering ring B: KFHA 040 018 050-1 (ring B) O 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 160 bar. 0 Hydraulic operating volume. @ Proximity switch holders are provided for standard proximity switches M8x1 with a nominal switching distance of 1,5 mm (flush mountable). For easier service, the proximity switch holders have a depth stop and are pre-adjusted when delivered from the factory. © Plugged hydraulic port LL alternative to L, useful for bleeding. SITEMA GmbH & Co. KG . G.-Braun-StraUe 13 . D-76187 Karlsruhe . Phone: +49(0)721/98661-0 . Fax: -11 . www.sitema.com

Subject to modification without prior notice Delivery including centering ring A or B matching the cylinder mounting style. IMPORTANT: Please indicate the desired type in your order (see chapter ’’Mounting to a cylinder”, one page 4). Mounting without centering ring is not permissible. Ring C for mounting without cylinder on request. Order example for Locking Unit KFHA 80-36, 50 bar, with centering ring B: KFHA 080 036 050-1 (ring B) O 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...

Subject to modification without prior notice SITEMA GmbH & Co. KG . G.-Braun-StraUe 13 . D-76187 Karlsruhe . Phone: +49(0)721/98661-0 . Fax: -11 . www.sitema.com

Technical Data Sheet SITEMA - Locking Unit KFHA Locking by Spring Force / Hydraulic Releasing TI-F60-EN-10/2012 Operational purpose The Locking Unit KFHA clamps a shaft in any position. It is commonly used to clamp the rod of standard cylinders according to ISO 6020-2 (160 bar) or other shafts independent from the cylinder. It holds axial forces in both directions. Mounting to a cylinder The Locking Unit KFHA is prepared to be mounted on a cylinder according to ISO 6020-2. It is compatible to the different mounting possibilities listed below. In each case the Locking Unit KFHA itself is to...

Mounting without a cylinder Mounting the Locking Unit KFHA in applications without cylinder / centering ring C Mount in this way if the Locking Unit KFHA shall be used on a separate rod. This type of mounting is only admissible in combination with the centering ring which has to be ordered together with the unit. The support surface on the machine element must face the centering ring side of the Locking Unit KFHA. Choosing the right size The table shows the nominal holding force F of the various types. The value of F must be higher than the maximum axial load acting on the rod. In case...

Pressure fluid Hydraulic oil (HLP) in accordance with DIN 51524-2 must be used as pressure medium. Please consult SITEMA before using any other media. Control In most applications, an actuation as suggested in the sketch below is used. During every operational cycle, the 3/2-way valve is actuated electrically and releases the locking unit. In all other operational conditions including power failure, emergency stop etc., the locking unit engages and holds the rod or brakes the load. Likewise, the load is secured when the pressure line breaks. To prevent possible problems, the rod shall not...