The AirTAC Airtac SC40 Standard Cylinder SC40X740 is a genuine double-acting standard air cylinder with a Ø40mm bore and 740mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The AirTAC SC40X740 is a double-acting single-rod pneumatic cylinder delivering 628 N of push force at 0.5 MPa (1130 N at 0.9 MPa). Its 40 mm bore houses a 16 mm diameter piston rod, and the 740 mm stroke makes it well-suited for medium-reach material transfer or sorting gates where a compact tie-rod body is preferred.
This cylinder uses a PT1/4 port, M12x1.25 rod thread, and an adjustable air cushion (21 mm length) to decelerate the piston smoothly at end-of-travel. The body length A is 142 mm, giving an approximate extended length of 882 mm. The standard TPU seals operate reliably from -20 to +70 °C with filtered air.
| Model | Airtac SC40 Standard Cylinder SC40X740 |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 740 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. |
| ×740 | 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 740 mm stroke pushes or diverts medium-weight packages between conveyor lanes, using the 628 N force at standard plant pressure.
Operates a sliding safety guard or interlock door with a long travel, where the adjustable cushion prevents slamming at the end of the 740 mm stroke.
Provides the linear motion for a small bin or tray tipper, leveraging the 1130 N thrust at 0.9 MPa for controlled dumping of parts.
With 628 N of push force at 0.5 MPa, this 40 mm bore suits moderate loads. If you need more force, stepping up to the 50 mm bore (SC50) provides 982 N push at the same pressure. For lighter, faster applications, the 32 mm bore (SC32) offers 402 N push. For this 740 mm stroke, ensure the rod is guarded against side loads—consider an external linear guide or a guided cylinder if the load is not perfectly axial, as long unsupported rods are susceptible to bending.
To replace an existing SC40X740, match these five points exactly: 40 mm bore, 740 mm stroke, PT1/4 port thread, basic (no) mounting accessory, and no built-in magnet. This ensures dimensional and performance interchangeability with another genuine AirTAC SC tie-rod cylinder.
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, 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 that is physically shorter than an equivalent ISO 15552 cylinder, so it is not dimensionally interchangeable. It is a direct replacement only for another AirTAC SC40 tie-rod cylinder with matching bore, stroke, port thread, and mounting.
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