The AirTAC Airtac SC40 Standard Cylinder SC40X250SLB is a genuine double-acting standard air cylinder with a Ø40mm bore and 250mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC40X250SLB is a double-acting pneumatic 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 the 250 mm stroke, making it a reliable workhorse for medium-duty linear tasks.
This model includes a built-in magnet (-S) for direct mounting of CMSG/DMSG/EMSG sensors, and the LB foot mount (F-SC40LB) for secure axial surface installation. The tie-rod construction keeps the body length compact at 142 mm, with a total extended length of approximately 392 mm.
| Model | Airtac SC40 Standard Cylinder SC40X250SLB |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 250 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. |
| ×250 | 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 628 N push force at 0.5 MPa is ideal for actuating stops and diverter gates on light-to-medium package conveyor lines, with the LB mount providing stable, fixed alignment.
The built-in magnet allows precise end-of-stroke sensing, making this cylinder suitable for automated clamping fixtures where position confirmation is required before the next machine cycle.
With its 250 mm stroke and TPU seals for standard temperatures, this cylinder reliably operates sorting chutes or bin gates in processing equipment, offering robust tie-rod serviceability.
Choose the SC40 when your application needs force in the 628-1130 N range. If loads are lighter, the SC32 delivers 402 N at 0.5 MPa; for heavier demands, step up to the SC50 with 982 N. For this 250 mm stroke, ensure the rod is not subjected to high side loads—an external guide or guided cylinder is recommended if lateral forces are present.
To replace this unit, match five key points: 40 mm bore, 250 mm stroke, PT1/4 port thread, LB foot mounting accessory, and the built-in magnet (-S) for sensor compatibility. This ensures dimensional and functional interchangeability with another AirTAC SC tie-rod cylinder.
Quick checklist
At 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 reaches 1130 N. The theoretical maximum at 1.0 MPa is 128 kgf.
Yes. The -S suffix in the model code indicates a built-in magnet on the piston. You can clamp AirTAC CMSG (reed) or DMSG/EMSG (solid-state) sensors directly onto the barrel to detect piston position without any additional brackets.
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