The AirTAC Airtac SC40 Standard Cylinder SC40X350STC is a genuine double-acting standard air cylinder with a Ø40mm bore and 350mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC40X350STC is a double-acting tie-rod cylinder delivering 628 N of push force at 0.5 MPa and up to 1130 N at 0.9 MPa. Its 16 mm diameter piston rod and 21 mm adjustable air cushion provide smooth deceleration for mid-stroke positioning tasks. The 350 mm stroke is well within the 1200 mm maximum standard stroke for the 40 mm bore.
This model includes a built-in magnet (-S suffix) for direct mounting of CMSG, DMSG, or EMSG sensors, enabling precise end-of-stroke detection without external brackets. The TC suffix denotes a centre trunnion mount, supplied with the TCM1 bracket (F-SC40TC), allowing the cylinder to pivot and absorb misalignment in swinging applications. Operating on filtered air from 0.15 to 1.0 MPa, it uses standard PT ports and TPU seals for a temperature range of -20 to +70 °C.
| Model | Airtac SC40 Standard Cylinder SC40X350STC |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 350 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. |
| ×350 | 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 350 mm stroke and centre trunnion mount allow this cylinder to pivot as it diverts packages on a conveyor line, with magnetic sensors confirming gate position.
Generates 1130 N of clamping force at 0.9 MPa for holding parts during machining, then ejects them with a full 350 mm extension. Sensor feedback ensures cycle completion.
Provides consistent, repeatable linear motion for component life-cycle testing. The adjustable cushioning protects the end caps from impact damage at higher cycle rates.
For applications needing more force, stepping up to a 50 mm bore provides 982 N at 0.5 MPa. If a lighter, more compact unit is sufficient, the 32 mm bore offers 402 N. At 350 mm of stroke, side loads must be carefully managed; the 16 mm rod can experience bending under high lateral forces. Consider an external guide rail or a guided cylinder if the load is not perfectly axial.
To ensure a direct replacement, match five key points: 40 mm bore, 350 mm stroke, PT port thread, centre trunnion (TC) mounting with the TCM1 bracket, and the built-in magnet (-S) for sensor compatibility. The SC is a tie-rod cylinder and is not dimensionally interchangeable with ISO 15552 profile cylinders.
Quick checklist
At the standard operating pressure of 0.5 MPa, 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 increases to 1130 N.
No. This is a standard double-acting cylinder; it will drift or drop if pressure is lost or the directional valve is centered. For load holding without live pressure, you must add an external rod brake, a mechanical lock, or a pilot-operated check valve.
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