The AirTAC Airtac SC40 Standard Cylinder SC40X250SH is a genuine double-acting standard air cylinder with a Ø40mm bore and 250mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC40X250SH is a double-acting pneumatic cylinder delivering 628 N of push force and 528 N of pull force when operated at 0.5 MPa. With a 40 mm bore and a 250 mm stroke, it is built with a 16 mm diameter piston rod and M12x1.25 rod thread, making it a robust choice for medium-force clamping and pressing tasks.
This model includes a built-in magnet (suffix S) for direct mounting of CMSG, DMSG, or EMSG sensors, enabling precise end-of-stroke detection without external brackets. The H suffix specifies Viton (FKM) seals, extending the operating temperature range to 0–150 °C, ideal for hot environments where standard TPU seals would degrade.
| Model | Airtac SC40 Standard Cylinder SC40X250SH |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 250 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. |
| ×250 | 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.
Viton seals allow this cylinder to operate reliably in autoclaves, sterilizers, and drying ovens where ambient temperatures reach up to 150 °C, controlling door lifts and product pushers.
The built-in magnet enables clean, external position sensing with CMSG/DMSG sensors, perfect for pick-and-place units where the controller must confirm full extension and retraction on every cycle.
Delivers 628 N of stable pressing force at 0.5 MPa for laminating, heat-staking, or hot-forming applications, where the Viton seals maintain integrity despite continuous heat exposure.
For applications requiring slightly more force, consider stepping up to the 50 mm bore SC50 series, which provides 982 N of push force at 0.5 MPa. If a lower force profile is acceptable, the SC32 series offers 402 N at the same pressure. The 250 mm stroke is well within the 1200 mm maximum standard stroke for this bore.
When replacing an existing cylinder, match five key points: 40 mm bore, 250 mm stroke, PT port thread, the Viton seal material, and the integrated magnet for sensor compatibility. For strokes of 300 mm or longer, evaluate side loads carefully; an external guide rail is recommended to protect the 16 mm rod from bending under off-axis forces.
Quick checklist
At the standard operating pressure of 0.5 MPa, the cylinder produces 628 N extending (push) and 528 N retracting (pull). At the maximum operating pressure of 0.9 MPa, the push force increases to 1130 N. The theoretical maximum force at 1.0 MPa is 128 kgf.
No. The AirTAC SC series is a tie-rod cylinder with a shorter overall body length than an ISO 15552 profile cylinder, so it is not dimensionally interchangeable. It is a direct replacement only for another AirTAC SC40 tie-rod cylinder with matching bore, stroke, PT ports, magnet, and Viton seals.
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