The AirTAC Airtac SC40 Standard Cylinder SC40X775S is a genuine double-acting standard air cylinder with a Ø40mm bore and 775mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC40X775S is a double-acting pneumatic cylinder delivering 628 N of push force at 0.5 MPa and up to 1130 N at the maximum operating pressure of 0.9 MPa. Its 40 mm bore and 775 mm stroke suit mid-range linear tasks where a compact tie-rod body is preferred, and the built-in magnet allows direct mounting of CMSG/DMSG/EMSG sensors for end-of-stroke detection.
This model uses a 16 mm diameter piston rod with an M12x1.25 rod thread and PT1/4 ports. The adjustable air cushion at each end (21 mm length) decelerates the piston smoothly, reducing impact noise. The body length A is 142 mm, giving a total extended length of approximately 917 mm. It operates on filtered air from -20 to +70 °C with standard TPU seals.
| Model | Airtac SC40 Standard Cylinder SC40X775S |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 775 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. |
| ×775 | 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 775 mm stroke and sensor-ready design make this cylinder ideal for a conveyor line diverter or stop gate, where mid-stroke or end-of-stroke position feedback is required.
With the built-in magnet, CMSG sensors confirm clamp position in automated assembly fixtures, preventing cycle start until the part is securely held.
The 775 mm reach can push cartons or totes off a roller conveyor onto a perpendicular take-away line, with the adjustable cushion softening the end-of-stroke impact.
Choose the SC40 bore when your application needs between 528 N (pull) and 628 N (push) at 0.5 MPa. If you require more force, stepping up to the SC50 delivers 982 N push at the same pressure. For a 775 mm stroke, ensure the rod is guided externally if any side load is present—long, unsupported rods can bend and damage the bearing. When replacing an existing cylinder, match five points: 40 mm bore, 775 mm stroke, PT1/4 port thread, the built-in magnet (-S suffix), and the basic (no bracket) mounting style.
Quick checklist
At 0.5 MPa the cylinder pushes with 628 N and pulls with 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, but the cylinder is rated only to 1.0 MPa.
Yes. The -S suffix means a magnet is built into the piston. You can clamp AirTAC CMSG (reed) or DMSG/EMSG (solid-state) sensors directly onto the barrel tie-rods without any additional brackets.
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