AMF Catalogue Hydraulic clamping systems Page 170
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Link clamp No. 6959C Link clamp double-acting max. operating pressure 250 bar, min. operating pressure 25 bar. Order no. 325563 CAD eff. piston area Lo [cm²] Md max. [cm³] eff. piston area Sp [cm²] [Nm] [g] 0,9 1,1 0,6 2,4 188 Article no. Clamping force F1 at 100 bar* [kN] Clamping force F1 at 250 bar* [kN] Piston force F5 at 100 bar [kN] Piston force F5 at 250 bar [kN] Vol. Sp Vol. Lo [cm³] 6959C-12 0,7 1,7 1,1 2,8 1,7 Weight 325019 6959C-16 1,2 3,1 2,0 5,0 3,2 1,4 2,0 0,9 3,6 350 324905 6959C-20 1,9 4,9 3,1 7,8 6,0 2,6 3,1 1,4 10,0 590 324657 6959C-25 3,2 8,0 4,9 12,2 10,3 3,7 4,9 1,8 21,0 1155 325589 6959C-32 5,2 12,9 8,0 20,1 21,7 9,5 8,0 3,5 43,0 2125 Sp = clamp, Lo = unclamp * Clamping force when using standard clamping lever Design: Hydraulic cylinder as a drop-in cartridge. Top mounting with four cylinder screws (resistance min. 10.9), these are included in the supply scope. All components from hardened, tempered and burnished steel. Piston rod and hinge pins from hardened steel, tempered and nitrided. Additional bronze wiper for piston rod protection. Supply scope includes hinge pins and tension plates, but not clamping levers. Oil supply via oil channel in fixture body. Application: The double-acting link clamp is highly suited to clamping in clamping pockets. Features: Small dimensions. Allows close side-by-side positioning. Clamping levers easy to change with link clamps mounted. The clamping lever centre axis and the pressure point on the workpiece are always in one plane at (Z). This prevents relative movement on the workpiece. The integrated cartridge is stepped. This prevents the radial O-rings from becoming damaged as they are installed in or removed from the cross channels. Note: With standard levers, the ratio of B to C is 1 to 1.5. In preparing the blank lever, deviations that cause a higher clamping force F1 are permitted only in exceptional cases. A = clamp B = unclamp Z = optimum setting Dimensions: Order no. Article no. A A1 B C dia. D 325563 6959C-12 60,0° 3,0 13,5 22 325019 6959C-16 61,0° 5,6 16,5 26 324905 6959C-20 60,8° 5,5 19,5 31 324657 6959C-25 54,3° 1,0 24,0 37 325589 6959C-32 53,9° 4,2 30,0 45 E dia. F H H1 H2 H3 H4 H5 H6 H7 H8 K L M N P R dia. Q S S1 V W Z OR-2 OR-1 O-ring O-ring Order No. Order No. 20 21,0 17 10,0 58,9 33 41,5 34,0 5,5 18 3,5 11,5 16 37,5 15,0 6,0 10 12,0 4,6 42 28 18 29 4 409953 339572 25 26,5 23 12,0 75,2 43 55,0 41,5 7,5 24 4,0 12,0 20 45,0 16,0 9,5 12 14,0 5,6 48 32 22 32 4 407148 409664 30 30,5 28 14,5 84,8 47 60,0 50,0 9,0 26 7,0 16,5 27 51,5 21,0 9,5 15 16,0 6,5 56 38 28 42 5 321570 490342 38 37,5 35 16,0 106,4 61 76,0 52,5 11,5 34 5,0 17,0 34 65,0 30,5 7,0 20 20,5 8,5 72 46 34 54 5 321018 492728 47 47,5 45 16,0 131,0 75 92,0 62,5 11,5 44 13,0 17,3 42 82,0 38,5 9,0 24 25,5 10,5 87 56 40 65 5 321190 321190 Subject to technical alterations. 170 Hydraulic clamping systems ANDREAS MAIER GmbH & Co. kg ∙ Phone: +49 711 5766-196 ∙ Web: www.amf.de
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