The AirTAC Airtac SC40 Standard Cylinder SC40X300SCA 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 SC40X300SCA delivers 628 N of push force at 0.5 MPa and 1130 N at 0.9 MPa, making it a capable mid-range actuator for 300 mm linear moves. Its 16 mm diameter piston rod and 21 mm adjustable air cushion provide smooth deceleration, while the PT1/4 port supplies ample flow for speeds up to 800 mm/s.
This configuration includes a built-in magnet (-S) for direct mounting of CMSG/DMSG/EMSG sensors, plus a rear single clevis (CA) for pivoting installation. The clevis allows the cylinder body to swing, accommodating angular motion in the driven load.
| Model | Airtac SC40 Standard Cylinder SC40X300SCA |
|---|---|
| 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.
Operates sliding gates on agricultural hoppers or chutes, where the rear clevis mount allows the cylinder to pivot as the gate travels through its 300 mm arc.
Powers pivoting clamps on welding or assembly fixtures. The built-in magnet enables end-of-stroke confirmation via reed sensors for interlocked cycle start.
Drives a 300 mm throw diverter on a packaging conveyor. The clevis mounting simplifies alignment on fabricated brackets, and the adjustable cushion reduces impact noise.
For applications needing more force, step up to the 50 mm bore SC50 series, which provides 982 N at 0.5 MPa. If space is tight and less force is acceptable, the 32 mm bore offers 402 N. At 300 mm stroke, side-loading on the 16 mm rod must be managed; use an external guide or linear bearing to prevent rod bending and premature seal wear. When replacing, match bore (40 mm), stroke (300 mm), PT port thread, rear clevis mount (F-SC40CA), and the integrated magnet (-S) to ensure sensor compatibility.
Quick checklist
At the standard 0.5 MPa operating pressure, the push force is 628 N and the pull force is 528 N. At the maximum operating pressure of 0.9 MPa, the push force reaches 1130 N.
No. The SC40X300SCA 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 rod will drift. For load holding, an external pilot-operated check valve or rod lock must be added to the circuit.
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