The AirTAC Airtac SC40 Standard Cylinder SC40X300CA is a genuine double-acting standard air cylinder with a Ø40mm bore and 300mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC40X300CA is a double-acting pneumatic cylinder delivering 628 N of push force at 0.5 MPa (up to 1130 N at 0.9 MPa). Its 16 mm diameter piston rod and 300 mm stroke suit medium-reach linear tasks where rear-pivoting mounting is required.
This model includes a rear single clevis (CA) mount, allowing the cylinder body to pivot during operation. The clevis accessory code is F-SC40CA. With a body length of 142 mm and a 21 mm air cushion at each end, it decelerates loads smoothly. The standard PT1/4 port and M12x1.25 rod thread ensure straightforward pneumatic connections.
| Model | Airtac SC40 Standard Cylinder SC40X300CA |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 300 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. |
| ×300 | 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 rear clevis mount lets the cylinder body pivot as it actuates a diverter flap on a conveyor line, sorting packages by destination with 628 N of force at standard line pressure.
Applies consistent 1130 N clamping force at 0.9 MPa to hold workpieces during machining or welding, with the adjustable cushion softening the end-of-stroke impact for precise positioning.
Operates a discharge door on a seed or grain hopper. The pivoting CA mount accommodates the door's arc motion, while the 300 mm stroke provides ample travel for full opening.
For applications needing more force, consider stepping up to the 50 mm bore SC50 series, which provides 982 N at 0.5 MPa. For lighter, faster cycles, the 32 mm bore (402 N at 0.5 MPa) may be sufficient. At a 300 mm stroke, ensure side loads are minimal; if the rod must bear lateral force, use an external linear guide to prevent rod bending and premature seal wear.
When replacing an existing cylinder, match five key points: 40 mm bore, 300 mm stroke, PT port thread, rear single clevis (CA) mounting, and the absence of a built-in magnet. This ensures a direct dimensional and performance swap with another AirTAC SC tie-rod unit.
Quick checklist
At 0.5 MPa, the cylinder produces 628 N pushing and 528 N pulling. At the maximum operating pressure of 0.9 MPa, the push force increases to 1130 N. The theoretical maximum at 1.0 MPa is 128 kgf.
No. The SC40X300CA is a double-acting cylinder that requires continuous air pressure to maintain position. If pressure is lost or the directional valve is centered, the piston can drift. For load holding, you must add a pilot-operated check valve or an external mechanical rod brake.
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