AMF Catalogue Hydraulic clamping systems Page 211
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Centring clamp with three clamping points No. 6974 Order no. Centring clamp MAXI with three clamping points CAD Double-acting, max. operating pressure 350 bar, min. operating pressure 10 bar. Article no. Clamping force Clamping force Clamping Clamping Stroke Repea- Q max. Weight tability points Ø N -1 H at 350 bar* at 100 bar * [g] [mm] [mm] [l/min] [kN] [kN] 328773 6974-3054 3,2 11,2 3 54-62 4,0 ±0,02 1,0 1754 328815 6974-3061 3,2 11,2 3 61-69 4,0 ±0,02 1,0 1754 328849 6974-3068 3,2 11,2 3 68-76 4,0 ±0,02 1,0 1754 327593 6974-3076 5,0 17,5 3 76-84 5,2 ±0,02 1,5 1754 328856 6974-3083 5,0 17,5 3 83-91 5,2 ±0,02 1,5 1754 328898 6974-3090 5,0 17,5 3 90-98 5,2 ±0,02 1,5 1754 329003 6974-3098 8,0 28,0 3 98-109 6,9 ±0,02 2,0 3432 329045 6974-3109 8,0 28,0 3 109-120 6,9 ±0,02 2,0 3603 329086 6974-3119 8,0 28,0 3 119-130 6,9 ±0,02 2,0 3773 * The clamping force is distributed centrally over the 3 clamping points. Design: Double-acting centring clamp with three clamping points. All components from high-grade hardened and nitrided steel. Oil supply via oil channel in fixture body. Application: For centring and clamping workpieces with machined or cast holes, cutouts or penetrations. Element screwed directly onto the fixture body, sealed with O-ring. Features: If the centring clamp is fastened from below, oil is supplied through conduits drilled in the fixture body. If the centring clamp is fastened from above and oil supplied through conduits drilled in the fixture body, a connection plate for O-ring connection is needed. If the centring clamp is fastened from above and oil supplied through pipes, a connection plate for pipe connection is needed. Pressure pieces are replaceable. Note: The practical combination of 2-point and 3-point elements can avoid over-determined clamping states. Unsuitable for use on lathes. On request: Other sizes available on request. Installation dimensions: groove for OR-1 groove for OR-2 A = clamp B = unclamp Dimensions: Order no. Article no. A dia. B C dia. D Bolt Ø dia. E F -0,4 D1 g6/h7 [mm] G G1 J K L L1 dia. O M P R S SW dia. dia. dia. T U V W dia. Y Y1 Z X OR-2 OR-1 O-ring O-ring Order No. Order No. 328773 6974-3054 22,9 45 11,3 53,9 12 16 40 M6x12 M6 8 6 65,0 45 45 0 57,0 2,6 0 10 20,5 8 3 16,8 7,7 1,1 1,3 6 409508 537985 328815 6974-3061 22,9 45 11,3 60,9 12 16 40 M6x12 M6 8 6 65,0 45 45 0 57,0 2,6 0 10 20,5 8 3 16,8 7,7 1,1 1,3 6 409508 537985 328849 6974-3068 22,9 45 11,3 67,9 12 16 40 M6x12 M6 8 6 65,0 45 45 0 57,0 2,6 0 10 20,5 8 3 16,8 7,7 1,1 1,3 6 409508 537985 327593 6974-3076 32,5 65 15,6 75,9 14 25 54 M8x16 M6 9 6 77,0 56 60 41 68,0 3,1 0,5 11 30,0 14 4 22,0 9,8 1,1 1,5 6 537969 321265 328856 6974-3083 32,5 65 15,6 82,9 14 25 54 M8x16 M6 9 6 77,0 56 60 41 68,0 3,1 0,5 11 30,0 14 4 22,0 9,8 1,1 1,5 6 537969 321265 328898 6974-3090 32,5 65 15,6 89,9 14 25 54 M8x16 M6 9 6 77,0 56 60 41 68,0 3,1 0,5 11 30,0 14 4 22,0 9,8 1,1 1,5 6 537969 321265 329003 6974-3098 42,5 85 19,1 97,9 18 32 67 M10x20 M8 10 6 91,0 64 74 47 80,0 3,6 2,5 13 36,6 16 5 27 10,8 1,1 1,3 6 542464 542308 329045 6974-3109 42,5 85 19,1 108,9 18 32 67 M10x20 M8 10 6 91,0 64 74 47 80,0 3,6 2,5 13 36,6 16 5 27 10,8 1,1 1,3 6 542464 542308 329086 6974-3119 42,5 85 19,1 118,9 18 32 67 M10x20 M8 10 6 91,0 64 74 47 80,0 3,6 2,5 13 36,6 16 5 27 10,8 1,1 1,3 6 542464 542308 Subject to technical alterations. ANDREAS MAIER GmbH & Co. kg ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de Hydraulic clamping systems 211
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