The AirTAC Airtac SC40 Standard Cylinder SC40X590 is a genuine double-acting standard air cylinder with a Ø40mm bore and 590mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC40X590 is a double-acting pneumatic cylinder from the AirTAC SC tie-rod family, 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 590 mm stroke, this model is well-suited for medium-reach transfer and clamping tasks. The 16 mm diameter piston rod and 21 mm adjustable air cushion at each end provide smooth deceleration, while the compact body length A of 142 mm keeps the overall footprint efficient.
Operating on filtered air from 0.15 to 1.0 MPa, the cylinder handles a proof pressure of 1.5 MPa. At the maximum operating pressure of 0.9 MPa, it generates 1130 N of thrust. The standard PT1/4 port and M12x1.25 rod thread ensure straightforward pneumatic connections. This genuine AirTAC actuator is built with TPU/NBR seals for a standard temperature range of -20 to +70 °C.
| Model | Airtac SC40 Standard Cylinder SC40X590 |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 590 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. |
| ×590 | 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 590 mm stroke moves components between conveyor lines or workstations, with the 628 N push force at 0.5 MPa handling medium-weight pallets and fixtures.
Applies consistent clamping force for assembly or machining jigs. The adjustable cushion reduces impact at the end of the 590 mm travel, protecting tooling.
Pushes bins or totes off a gravity roller lane onto a takeaway conveyor. The tie-rod construction provides robust service in dusty warehouse environments.
For applications needing more force, consider stepping up to the SC50 bore, which provides 982 N of push force at 0.5 MPa. If a shorter, more compact cylinder is acceptable, the SC32 bore offers 402 N at the same pressure. The 590 mm stroke is within the 1200 mm maximum standard stroke for the 40 mm bore.
At this stroke length, the 16 mm rod is susceptible to bending under side loads. For applications where the load is not perfectly guided, use an external guide rail or consider a guided cylinder to protect the rod bearing and seals. When replacing an existing unit, match these five points: 40 mm bore, 590 mm stroke, PT1/4 port thread, basic mounting (no bracket), and no magnet.
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 reaches 1130 N. The theoretical maximum force at 1.0 MPa is 128 kgf.
No, the SC40X590 is a double-acting cylinder and will not hold its position if air pressure is lost or the valve is centered. The piston can drift or drop. To hold a load safely without live pressure, you must add a mechanical lock, an external rod brake, or a pilot-operated check valve.
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