The AirTAC Airtac SC40 Standard Cylinder SC40X28 is a genuine double-acting standard air cylinder with a Ø40mm bore and 28mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The AirTAC SC40X28 is a compact double-acting tie-rod cylinder delivering 628 N of push force at 0.5 MPa (1130 N at 0.9 MPa). Its 28 mm stroke is a non-standard length, ideal for short-throw clamping or ejecting tasks where a full standard stroke is unnecessary.
Built with a 16 mm diameter piston rod and M12x1.25 rod thread, this cylinder includes an adjustable air cushion (21 mm cushion length) to decelerate the piston smoothly. The PT1/4 ports and TPU seals suit standard compressed air systems operating from -20 to +70 °C.
| Model | Airtac SC40 Standard Cylinder SC40X28 |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 28 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. |
| ×28 | 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.
The 28 mm stroke and 628 N force at 0.5 MPa make this cylinder suitable for compact jig and fixture clamping where minimal travel is required.
Delivers a quick, controlled push to eject small parts from a die or conveyor line, with the 21 mm air cushion softening end-of-stroke impact.
Operates small diverter gates on packaging lines, using its double-acting function to reliably extend and retract the gate mechanism.
For applications needing slightly more force, the 50 mm bore SC50 series provides 982 N at 0.5 MPa. If space is tight, the 32 mm bore SC32 offers 402 N. This 28 mm stroke is non-standard, so verify lead time with your supplier.
When replacing an existing cylinder, match five points: 40 mm bore, 28 mm stroke, PT1/4 port thread, basic (no mounting accessory), and no magnet. The SC40 is a tie-rod design, not an ISO 15552 profile, so dimensional interchangeability is limited to other AirTAC SC40 cylinders.
Quick checklist
At 0.5 MPa, the push force is 628 N. At the maximum operating pressure of 0.9 MPa, the push force reaches 1130 N. The theoretical maximum at 1.0 MPa is 128 kgf.
No. The AirTAC SC series is a tie-rod cylinder and is shorter than an equivalent ISO 15552 cylinder. It is not dimensionally interchangeable. Only replace another AirTAC SC40 cylinder with matching bore, stroke, port, mounting, and magnet options.
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