The AirTAC Airtac SC40 Standard Cylinder SC40X725S is a genuine double-acting standard air cylinder with a Ø40mm bore and 725mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC40X725S is a double-acting tie-rod cylinder with a 40 mm bore and a 725 mm stroke, factory-equipped with a built-in magnet for direct mounting of CMSG/DMSG/EMSG sensors. At 0.5 MPa air pressure it generates 628 N extending force and 528 N retracting force, placing it in a mid-range thrust class suitable for moderate transfer and clamping tasks.
With a 16 mm diameter piston rod and M12x1.25 rod thread, this model provides good column strength for its stroke. The adjustable air cushion (21 mm length) decelerates the piston smoothly at each end, and the PT1/4 port supplies ample flow for speeds up to 800 mm/s. The body length A is 142 mm, giving an extended length of approximately 867 mm.
| Model | Airtac SC40 Standard Cylinder SC40X725S |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 725 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. |
| ×725 | 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.
Shuttles a 725 mm stroke with sensor-confirmed end positions for automated conveyor divert gates or pick-and-place transfers.
Applies 628 N of clamping force with magnetic piston sensing to verify clamp closure in machining or welding fixtures.
Acts as a long-stroke pneumatic stop or pusher on packaging lines, using the magnet for end-of-stroke detection.
Choose the SC40 bore when 628 N push at 0.5 MPa meets the load; step up to SC50 (982 N at 0.5 MPa) if you need more force, or down to SC32 (402 N) for a lighter, more compact unit. For this 725 mm stroke, ensure the rod is guided externally or the load is purely axial—long, unsupported strokes on a 16 mm rod can bend under side load. When replacing, match bore (40), stroke (725), PT1/4 port thread, the built-in magnet (-S suffix), and the basic (no bracket) mounting style.
Quick checklist
At 0.5 MPa (5 bar) it delivers 628 N extending and 528 N retracting. At 0.7 MPa this rises to 879 N push, and at the maximum operating pressure of 0.9 MPa it reaches 1130 N push force.
Match the bore (40 mm), stroke (725 mm), PT1/4 port thread, the built-in magnet for sensor mounting, and the basic tie-rod mounting style. The SC series is a tie-rod cylinder and is not dimensionally interchangeable with ISO 15552 profile cylinders.
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