Airtac SC40 Standard Cylinder SC40X140SLB
The AirTAC Airtac SC40 Standard Cylinder SC40X140SLB is a genuine double-acting standard air cylinder with a Ø40mm bore and 140mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ40 mm
- Stroke140 mm
- Port sizePT1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 21 mm
About the Airtac SC40 Standard Cylinder SC40X140SLB
The SC40X140SLB is a double-acting pneumatic cylinder that generates 628 N of push force at 0.5 MPa (1130 N at the 0.9 MPa maximum operating pressure). Its 140 mm stroke suits medium-reach clamping, pressing, and material-transfer tasks where a compact body length is needed.
This model comes factory-equipped with a built-in magnet (-S suffix) so CMSG, DMSG, or EMSG sensors can be clamped directly onto the tie-rod barrel for non-contact position sensing. The LB foot mount (F-SC40LB) provides a stable axial mounting base, and the 16 mm diameter piston rod with M12x1.25 thread handles straightforward push-pull loads.
Airtac SC40 Standard Cylinder SC40X140SLB Technical Specifications
| Model | Airtac SC40 Standard Cylinder SC40X140SLB |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 140 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.
Theoretical Output Force (Ø40mm)
| 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.
Model Code: Airtac SC40 Standard Cylinder SC40X140SLB
| SC | Standard tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×140 | 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.
Where the Airtac SC40 Standard Cylinder SC40X140SLB Is Used
Part Stops & Diverters
The 140 mm stroke and LB foot mount suit conveyor-mounted part stops, diverters, and gates in packaging lines where sensor confirmation is required.
Light Assembly Presses
Delivers 628 N at 0.5 MPa for pressing bushings, pins, or connectors in bench-top assembly fixtures with magnetic position feedback.
Hopper Gate Actuation
Operates slide gates on small hoppers and chutes. The built-in magnet lets sensors confirm open/closed status in dusty environments.
Is the Airtac SC40 Standard Cylinder SC40X140SLB the Right Cylinder?
Choose the SC40 bore when 628 N at 0.5 MPa covers your load with margin; if you need roughly 56% more force, step up to the SC50 bore (982 N at 0.5 MPa). For lighter, faster cycling, the SC32 bore (402 N at 0.5 MPa) may be a better fit. The 140 mm stroke is well within the 1200 mm maximum standard stroke for this bore.
When replacing an existing unit, match five points: 40 mm bore, 140 mm stroke, PT1/4 port thread, LB foot mounting (F-SC40LB), and the built-in magnet (-S) for sensor compatibility. For strokes above 300 mm, consider an external guide or guided cylinder to protect the rod from side-load bending.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SC40 Standard Cylinder SC40X140SLB FAQ
At 0.5 MPa the cylinder delivers 628 N pushing and 528 N pulling. At the maximum operating pressure of 0.9 MPa, push force rises to 1130 N. The theoretical maximum at 1.0 MPa is 128 kgf.
Yes. The -S suffix in the model code means a magnet is built into the piston, so AirTAC CMSG (reed) or DMSG/EMSG (solid-state) sensors clamp directly onto the tie-rod barrel for end-of-stroke or intermediate position detection.
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