| Mounting position | optional | ||
| Piston rod thread | M16x1.5 | ||
| Stroke | 250 mm | ||
| Material piston rod | High-alloy steel | ||
| Material cover | Wrought aluminium alloy | ||
| Pneumatic connection | G1/4 | ||
| Product weight | 2.087 g | ||
| Theoretical force at 0.6 MPa (6 bar, 87 psi), advance stroke | 1.178,1 N | ||
| Ambient temperature | -20 °C ... 80 °C | ||
| Corrosion resistance class CRC | 2 - Moderate corrosion stress | ||
| Operating medium | Compressed air to ISO 8573-1:2010 [7:4:4] | ||
| Operating pressure | 1 bar ... 10 bar | ||
| Position detection | Via proximity switch |
| Cushioning | Elastic cushioning rings/plates at both ends | ||
| Piston diameter | 50 mm | ||
| Material cylinder barrel | High-alloy stainless steel | ||
| Material seals | NBR TPE-U(PU) | ||
| Note on materials | RoHS-compliant | ||
| Type of mounting | With accessories | ||
| Moving mass | 1.038 g | ||
| Theoretical force at 0.6 MPa (6 bar, 87 psi), return stroke | 989,6 N | ||
| LABS (PWIS) conformity | VDMA24364-B1/B2-L | ||
| Note on operating and pilot medium | Lubricated operation possible (in which case lubricated operation will always be required) | ||
| Mode of operation | Double-acting | ||
| Symbol | 991.217 | ||
| Design | Piston Piston rod Cylinder barrel |
