Standard_Parts_Catalogue

Page 822 | 2.4 Tensioning with Clamping Mechanisms GN 864 Power Clamps Pneumatic 2 Type BL Clamping arm horizontal Size (Piston- Ø ) l 1 −0,5 l 2 l 3 l 4 l 5 m 1 ±0,01 m 2 m 3 ±0,01 m 4 ±0,01 m 5 r s t 20 150 37,5 70   21,5 4,5 12  7,5 17 22 13 27   32 13 32 206 52    91   31   6   18 10   25 30 22 36,5 42 15 40 244 63   104   37   7,5 22 13   30 37 25 44,5 52 18 50 279 74 110,5 43 8   27 12   47 44 35 52,5 62 21 1 Size (Piston- Ø ) Max. clamping moment in Nm at 6 bar F S in N Clamping force at r at 6 bar F H in N Holding capacity at r at 6 bar a b −0,2 d 1 h8 d 2 d 3 H8 d 4 d 5 h 1 h 2 20  60 2220 4070 27   10 28 M  5 7 4,2 M 5 16  51   32 150 4110 5620 36,5   12 40 M  6 9 5   G 1 ⁄ 8 21  75,5 40 300 6740 7530 44,5   16 50 M  8 11 6,8 G 1 ⁄ 8 26  91,5 50 475 9000 13300 52,5 18 60 M 10 13 8,5 G 1 ⁄ 8 31 114   1 Size 2 Type 3 Finish How to order (Anti-Stick Coating) 1 2 3 GN864-40-BL-FG 1 Size 2 Type 3 Finish How to order (Chemically nickel plated) 1 2 3 GN864-20-BL-NC The maximum clamping moment of the power clamps GN 864 is reached once the clamping arm is at the end of its stroke. For this reason the wor- king stroke should be completed as closely as possible to the stroke end. The type FG is equipped with an anti-stick coating of polytetra- fluorethylene (PTFE) for protection against welding spray and corrosion. With protective covers GN 864.1, the tensioning mechanism can be addi- tionally protected against penetrating dirt. see also... • Operating Principle, Mounting Methods → Page 820 • Proximity Switches (to Monitor the End Position) → Page 838 • Other Accessories → Page 828 ff. Information • Steel C 45 - - Chemically nickel plated NC - - Anti-stick coating Polytetrafluorethylene (PTFE), green FG • Max. pressure 10 bar • ISO Fundamental Tolerances → Page 2151 • Plastic Characteristics → Page 2158 • RoHS Specification 3 • Protective covers GN 864.1 → Page 839 Accessory