Description Clamps and brakes with spring energy accumulator Positive locking integrated contact profiles ensure maximum axial and horizontal rigidity, and thus an excellent braking effect Dynamic and static stabilization in the axial direction Clamps and brakes without pressurization (spring energy) Compact design, compatible with DIN 645 Features Up to 1 million clamping cycles Up to 2,000 emergency braking operations Integrated all-around sealing High continuous output High positioning accuracy Mechanical gate valve gear mechanism Solid, rigid steel housing, chemically nickel-plated Extremely low air consumption Maintenance-free 5 million clamping cycles (B10d value) – the B10d value is not attained with the PLUS connection Can be used on all SNS roller guide rails Very high axial holding forces of up to 7700 N at 5.5 bar release pressure with high-power spring energy accumulator Increased holding force of up to 9,200 N thanks to additional pressurization on the air-plus port Product description Functional principle Air pressure: 0 bar Clamps and brakes with spring force In the event of a pressure drop, the clamping or braking effect is generated via a dual acting gate valve gear mechanism, each with one spring assembly (spring energy accumulator). An integrated quick-exhaust valve provides for short reaction times. Air pressure: 4.5 - 8 bar (MBPS) 5.5 - 8 bar (UBPS) Decompression with air pressure The clamping profiles are held apart by the compressed air. Free movement is possible Technical data General technical data Size 25 35 45 55 Spring energy holding force with standard air port 1) N 1850 2800 5200 7700 Spring energy holding force with air-plus port 1) 2) N 2650 3800 7600 9200 Air consumption (normal liter) standard air port dm³/stroke 0.08 0.139 0.153 0.554 Air consumption (normal liter) air-plus port dm³/stroke 0.165 0.303 0.483 0.952 Max. pneumatic operating pressure bar 8 Release pressure min. bar 5.5 Mass kg 1.2 2.25 6.2 9.4 Operating conditions Size 25 35 45 55 Permissible ambient temperature (min ... max) 0 °C ... +70 °C 1) Holding force by spring energy. The inspection is done in a mounted state with a lubricated layer (ISO-VG 68). 2) Increased holding force by additional air admission at air-plus port with 6.0 bar. Circuit across 5/2- or 5/3-way directional control valve. Symbols/Circuit diagrams Circuit1) with standard air connection 1) Holding force by spring energy. The inspection is done in a mounted state with a lubricated layer (ISO-VG 68). a) Air filter 1 Air connection 2 Working connection 3 Exhaust Circuit1) for air-plus port 1) Increased holding force by additional air admission at air-plus port with 6.0 bar. Circuit across 5/2- or 5/3-way directional control valve. a) Air-plus port 1 Air connection 2 4 Working connections 3 5 Exhaust Fields of application Clamping in the event of loss of pressure during assembly work and standstill of the machine without energy of machine tables from machining centers of z-axis pos
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