The AirTAC Airtac SC40 Standard Cylinder SC40X875 is a genuine double-acting standard air cylinder with a Ø40mm bore and 875mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The AirTAC SC40X875 is a double-acting pneumatic cylinder with a 40 mm bore and a long 875 mm stroke, delivering a push force of 628 N at 0.5 MPa (1130 N at 0.9 MPa). Its 16 mm diameter piston rod and 21 mm adjustable air cushion provide reliable deceleration for mid-range linear motion tasks.
With a body length A of 142 mm, the total extended length reaches 1017 mm, making it well-suited for applications needing extended reach without stepping up to a larger bore. The tie-rod construction keeps the profile compact, and the PT1/4 ports ensure straightforward pneumatic integration.
| Model | Airtac SC40 Standard Cylinder SC40X875 |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 875 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. |
| ×875 | 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 875 mm stroke moves components across wide conveyor gaps or between distant stations in packaging and assembly lines.
Delivers 628 N at 0.5 MPa to push products onto pallets or into sorting lanes, with adjustable cushioning to protect delicate items.
Extends to tilt bins or hoppers for controlled discharge of bulk materials, leveraging the long stroke for full rotation.
For a 40 mm bore, the SC40X875 provides 628 N of push force at 0.5 MPa. If your load requires more force, stepping up to the 50 mm bore (SC50 series) raises push force to 982 N at the same pressure. For lighter, faster cycles, the 32 mm bore (SC32, 402 N at 0.5 MPa) may be sufficient.
At 875 mm stroke, the unsupported rod length is significant. Side loads or off-centre mounting can cause rod bending or premature bearing wear. Consider an external linear guide or a guided cylinder if the application imposes any lateral force. When replacing an existing cylinder, match five points: 40 mm bore, 875 mm stroke, PT1/4 port thread, basic (no bracket) mounting, and no magnet.
Quick checklist
At 0.5 MPa, push force is 628 N and pull force is 528 N. At the maximum operating pressure of 0.9 MPa, push force reaches 1130 N. The theoretical maximum force at 1.0 MPa is 128 kgf.
No, the SC40X875 is not designed for unsupported side loads. At 875 mm stroke, the 16 mm rod is prone to bending under lateral force. Always use an external guide rail or rod-alignment coupler to protect the rod bearing and piston seals.
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