| Total stroke | 38 mm | ||
| Piston rod thread | M8 | ||
| Clamping stroke | 20 mm | ||
| Mounting position | optional | ||
| Position detection | Via proximity switch | ||
| Symbol | 991.217 | ||
| Mode of operation | Double-acting | ||
| Note on operating and pilot medium | Lubricated operation possible (in which case lubricated operation will always be required) | ||
| Ambient temperature | -10 °C ... 80 °C | ||
| Effective clamping force at 0.4 MPa (4 bar, 58 psi) | 355 N | ||
| Max. tightening torque Clamping finger screw | 24 Nm | ||
| Product weight | 985 g | ||
| Pneumatic connection | G1/8 | ||
| Material cover | Wrought aluminium alloy Coated | ||
| Material housing | Wrought aluminium alloy Smooth anodised | ||
| Material cylinder barrel | Wrought aluminium alloy Smooth anodised |
| Piston diameter | 40 mm | ||
| Swivel angle | 90 deg +/-2 deg | ||
| Cushioning | Elastic cushioning rings/plates at both ends | ||
| Design | Piston Piston rod Cylinder barrel | ||
| Swivel direction | Right | ||
| Operating pressure | 2 bar ... 10 bar | ||
| Operating medium | Compressed air to ISO 8573-1:2010 [7:4:4] | ||
| Corrosion resistance class CRC | 2 - Moderate corrosion stress | ||
| Effective clamping force at 0.2 MPa (2 bar, 29 psi) | 176 N | ||
| Effective clamping force at 0.6 MPa (6 bar, 87 psi) | 536 N | ||
| Theoretical clamping force at 0.6 MPa (6 bar, 87 psi) | 633 N | ||
| Type of mounting | With through-hole Via female thread With accessories Either: | ||
| Material collar screws | Steel Galvanised | ||
| Material seals | NBR TPE-U(PU) | ||
| Material piston rod | High-alloy stainless steel |
