The AirTAC Airtac SC40 Standard Cylinder SC40X920S is a genuine double-acting standard air cylinder with a Ø40mm bore and 920mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC40X920S is a double-acting pneumatic cylinder delivering 628 N of push force at 0.5 MPa (1130 N at 0.9 MPa). Its 16 mm diameter piston rod and 21 mm adjustable air cushion provide reliable end-of-stroke deceleration across the full 920 mm working stroke.
This model includes a built-in magnet (-S suffix), allowing CMSG, DMSG, or EMSG reed and solid-state sensors to clamp directly onto the tie-rod barrel for non-contact position sensing. The cylinder body length A is 142 mm, giving an approximate extended length of 1062 mm.
| Model | Airtac SC40 Standard Cylinder SC40X920S |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 920 mm |
| Acting type | Double acting |
| Port size | PT1/4 |
| Rod thread | M12×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 21 mm |
| Max stroke | Up to 1200 mm |
Specifications follow the official AirTAC SC series datasheet. Operating pressure 0.15–1.0 MPa, proof pressure 1.5 MPa, temperature −20 to +70 °C. Confirm against the product label before installation. Thread options: PT (standard) / G.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (approx.) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| SC | Standard tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×920 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related variants: SCD (double rod), SCJ (adjustable stroke), SCT (multi-position). Seals: TPU standard / H = Viton / N = NBR. Thread: blank = PT, G = G thread.
Moves components across wide conveyor gaps or between parallel lines where a 920 mm stroke reaches deep into the machine frame.
The built-in magnet enables end-of-stroke confirmation via CMSG/DMSG sensors, ensuring the clamp is fully open or closed in automated assembly fixtures.
Operates a long-throw diverter gate on a packaging or sortation line, using the adjustable cushion to manage the gate's inertia quietly at each cycle end.
For applications needing more force, the 50 mm bore SC50 series steps up to 982 N at 0.5 MPa. If a shorter, more compact build is acceptable, the 32 mm bore offers 402 N. At 920 mm stroke, the rod is long relative to its 16 mm diameter—avoid unguided side loads or pair the cylinder with an external linear guide to prevent rod bending and premature bearing wear. When replacing an existing unit, match bore, stroke, PT port thread, the -S magnet option, and basic mounting to ensure drop-in compatibility.
Quick checklist
At 0.5 MPa the cylinder pushes with 628 N; at 0.7 MPa it delivers 879 N, and at the maximum operating pressure of 0.9 MPa it reaches 1130 N. The theoretical maximum force at 1.0 MPa is 128 kgf. Pull force on the return stroke is lower due to the 16 mm rod area.
Yes. The -S suffix denotes a factory-installed magnetic piston, so AirTAC CMSG (reed) or DMSG/EMSG (solid-state) sensors mount directly onto the barrel tie-rods to detect piston position without brackets or external flags.
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