The AirTAC Airtac SC40 Standard Cylinder SC40X325S is a genuine double-acting standard air cylinder with a Ø40mm bore and 325mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The AirTAC SC40X325 is a double-acting tie-rod cylinder with a 40 mm bore and 325 mm stroke, delivering a push force of 628 N at 0.5 MPa (up to 1130 N at 0.9 MPa). Its 16 mm diameter piston rod and 21 mm adjustable air cushion provide reliable deceleration for mid-stroke applications.
This model features a PT1/4 port and M12x1.25 rod thread, with a compact body length A of 142 mm. The total extended length is approximately 467 mm. Operating on filtered air from 0.15 to 1.0 MPa, the standard TPU seals suit a temperature range of -20 to +70 °C.
| Model | Airtac SC40 Standard Cylinder SC40X325S |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 325 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. |
| ×325 | 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.
Actuates a gate or pusher arm on a conveyor line, sorting cartons with a 325 mm stroke and 628 N of push force at standard plant pressure.
Provides the holding force for a welding or assembly jig. The adjustable cushion ensures a gentle stop, protecting the fixture from impact.
Opens and closes a discharge gate on a seed or grain hopper. The double-acting design gives positive control in both directions.
Choose the SC40X325 for linear tasks needing around 628 N at standard plant pressure. If your load is lighter, stepping down to a 32 mm bore (402 N push at 0.5 MPa) saves space; for heavier work, the 50 mm bore offers 982 N. Always match replacement cylinders on five points: bore (40 mm), stroke (325 mm), PT1/4 port thread, mounting accessory (basic), and magnet option (none).
With a 325 mm stroke, avoid placing side loads on the unsupported rod end. For guided motion, use an external linear guide or switch to a guided cylinder to prevent rod bending and premature seal wear.
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 at 1.0 MPa is 128 kgf.
No. The SC series is a tie-rod cylinder and is physically shorter than an ISO 15552 profile cylinder, so dimensions are not interchangeable. It is a direct replacement only for another AirTAC SC40 cylinder with the same bore, stroke, and port thread.
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