The AirTAC Airtac SC40 Standard Cylinder SC40X40 is a genuine double-acting standard air cylinder with a Ø40mm bore and 40mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC40X40 is a compact double-acting pneumatic cylinder delivering 628 N of push force at a standard 0.5 MPa supply, making it a strong choice for short-stroke clamping and ejector tasks. Its 16 mm diameter piston rod and 21 mm adjustable air cushion provide smooth deceleration in a tight 40 mm stroke envelope.
With a body length A of just 142 mm, this tie-rod cylinder fits where space is limited. The standard PT1/4 ports and M12x1.25 rod thread ensure straightforward pneumatic connections, while the TPU seals support operation from -20 to +70 °C.
| Model | Airtac SC40 Standard Cylinder SC40X40 |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 40 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. |
| ×40 | 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 40 mm stroke and 628 N force at 0.5 MPa make it ideal for pneumatic clamping fixtures in woodworking or light metal fabrication.
Provides a clean, repeatable push to eject small parts from injection molds or stamping dies, with adjustable cushion to reduce end-of-stroke impact.
Actuates small diverter gates on packaging conveyors, where the 40 mm stroke is sufficient to redirect product flow between lanes.
For applications needing more force in the same 40 mm bore, stepping up to a 50 mm bore (SC50) increases push force to 982 N at 0.5 MPa. If a shorter or longer stroke is required, the SC40 is available in standard strokes from 25 mm up to 1200 mm.
When replacing an existing cylinder, match five key points: 40 mm bore, 40 mm stroke, PT1/4 port thread, basic mounting (no accessory brackets), and confirm whether a magnet is needed (this model has none). For side-load applications, an external guide rod or linear rail is recommended to protect the rod bearing.
Quick checklist
At 0.7 MPa operating pressure, the SC40X40 produces 879 N of push force and 528 N of pull force. The maximum operating force at 0.9 MPa is 1130 N.
This SC40X40 model does not include the -S magnet option, so the piston does not have a built-in magnet. To use CMSG/DMSG/EMSG reed or solid-state sensors, order the SC40X40-S variant instead.
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