The AirTAC Airtac SC40 Standard Cylinder SC40X280 is a genuine double-acting standard air cylinder with a Ø40mm bore and 280mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC40X280 is a double-acting pneumatic cylinder delivering 628 N of push force at 0.5 MPa (1130 N at 0.9 MPa). Its 40 mm bore and 280 mm stroke suit medium-force linear tasks where a compact tie-rod body is preferred. The 16 mm diameter piston rod and 21 mm adjustable air cushion provide reliable deceleration at end-of-stroke.
This model uses the standard PT1/4 port and M12x1.25 rod thread. The body length A is 142 mm, giving a total extended length of approximately 422 mm. It operates on filtered air from 0.15 to 1.0 MPa and uses TPU seals for a standard temperature range of -20 to +70 °C.
| Model | Airtac SC40 Standard Cylinder SC40X280 |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 280 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. |
| ×280 | 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.
Pushes lightweight totes or cartons off a conveyor at a 280 mm reach, using the 628 N force at standard plant pressure.
Applies consistent clamping force to hold parts during drilling or welding, with the 21 mm cushion reducing impact at clamp closure.
Operates a small sorting gate or diverter flap in agricultural handling lines, where the 16 mm rod provides adequate rigidity for the 280 mm stroke.
For applications needing slightly more force, stepping up to the 50 mm bore (SC50) provides 982 N push at 0.5 MPa. If lower force and a smaller footprint are acceptable, the 32 mm bore (SC32) offers 402 N. This 280 mm stroke is within the 1200 mm maximum standard stroke for the 40 mm bore.
When replacing an existing cylinder, match five key points: 40 mm bore, 280 mm stroke, PT1/4 port thread, basic mounting (no factory bracket), and no magnet. The SC is a tie-rod cylinder and is not dimensionally interchangeable with ISO 15552 profile cylinders.
Quick checklist
At 0.5 MPa, the push force is 628 N and the pull force is 528 N. At the maximum operating pressure of 0.9 MPa, push force reaches 1130 N. The theoretical maximum at 1.0 MPa is 128 kgf.
No. The SC series is a tie-rod cylinder with a shorter body length than an ISO 15552 cylinder. It is not dimensionally interchangeable. It can directly replace another AirTAC SC40 cylinder with the same stroke, port, and mounting configuration.
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