AMF Catalogue Hydraulic clamping systems Page 258
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support element No. 6944EH Article no. Order no. Support Element, cartridge flange Normally retracted. Hydraulic advanced. Spring force for contact, max. operating pressure 70 bar, min. operating pressure 25 bar. Contact force Support force Stroke H Vol. Md max. Md 1 max. Q max. Weight at 70 bar F1 [kN] [mm] [cm³] [Nm] [Nm] [l/min] [g] [N] 552200 6944EH-03-2 2,8 - 3,8 3,0 6,5 0,8 32 5,4 2,5 198 559184 6944EH-03-5 3,7 - 5,5 3,0 6,5 0,8 32 5,4 2,5 198 552201 6944EH-04-2 3,6 - 5,6 4,0 8,0 1,4 50 10,0 2,5 280 559185 6944EH-04-5 4,7 - 7,8 4,0 8,0 1,4 50 10,0 2,5 280 552202 6944EH-05-2 4,7 - 7,8 5,5 8,0 1,5 63 16,5 2,5 378 559186 6944EH-05-5 6,2 - 11,0 5,5 8,0 1,5 63 16,5 2,5 378 552203 6944EH-10-2 5,8 - 9,7 10,0 10,0 1,8 80 30,0 2,5 719 559187 6944EH-10-5 7,9 - 13,6 10,0 10,0 1,8 80 30,0 2,5 719 Design: Body made from steel, tempered and burnished. Support pin with internal thread case hardened and ground. Wiper to protect against dirt and cooling water. Oil supply via oil channel in fixture body. Application: The support element is used as an extra support to prevent sagging and vibration of a workpiece. Features: Element with high load capacity and low height. Oil pressure: The plunger is retracted in the normal position. When pressure is applied, the support pin advances with a weak spring-applied force against the inserted workpiece. The spring force varies with the pin stroke. As the hydraulic pressure rises, the support pin is hydraulically clamped. When the pressure is released, the support pin returns to the normal position. Very high support force ensures optimum manufacturing quality. Note: The support pin must be protected against the entry of dirt and splash water by a set screw. When putting into operation, make sure that the hydraulic system is vented perfectly. Failure to do so can cause destruction of the clamping element by the escaping diesel effect. The vent hole must be connected. No coolant must be sucked through this. The supporting force should be matched to the clamping force in order to absorb machining forces. The supporting force should always be at least twice as high as the clamping force. Dimensions: Article no. A B C dia. D E F G dia. J K L dia. N dia. P SW SW1 SW2 SW3 OR-1 O-ring Order No. OR-2 O-ring Order No. 552200 6944EH-03-2 57 9,0 7,4 10 7,6 1,7 M26 x 1,5 9,0 3,0 66,0 24,1 9,5 24 8 13 8 552156 552153 559184 6944EH-03-5 57 9,0 7,4 10 7,6 1,7 M26 x 1,5 9,0 3,0 66,0 24,1 9,5 24 8 13 8 552156 552153 552201 6944EH-04-2 62 10,5 9,4 12 10,3 1,7 M30 x 1,5 11,5 3,5 72,5 28,2 11,5 27 10 15 10 159400 128660 Order no. 559185 6944EH-04-5 62 10,5 9,4 12 10,3 1,7 M30 x 1,5 11,5 3,5 72,5 28,2 11,5 27 10 15 10 159400 128660 552202 6944EH-05-2 58 11,0 8,4 15 8,3 1,8 M36 x 1,5 12,5 4,0 69,0 34,2 14,5 32 13 19 11 552469 175216 559186 6944EH-05-5 58 11,0 8,4 15 8,3 1,8 M36 x 1,5 12,5 4,0 69,0 34,2 14,5 32 13 19 11 552469 175216 552203 6944EH-10-2 71 11,0 9,0 16 11,0 1,8 M45 x 1,5 12,5 4,0 82,0 43,1 15,5 41 13 21 11 552612 240309 559187 6944EH-10-5 71 11,0 9,0 16 11,0 1,8 M45 x 1,5 12,5 4,0 82,0 43,1 15,5 41 13 21 11 552612 240309 Subject to technical alterations. 258 Hydraulic clamping systems ANDREAS MAIER GmbH & Co. kg ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de
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