Airtac SC40 Standard Cylinder SC40X35S
The AirTAC Airtac SC40 Standard Cylinder SC40X35S is a genuine double-acting standard air cylinder with a Ø40mm bore and 35mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ40 mm
- Stroke35 mm
- Port sizePT1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 21 mm
About the Airtac SC40 Standard Cylinder SC40X35S
The AirTAC SC40X35S is a compact-stroke double-acting tie-rod cylinder delivering 628 N of push force at 0.5 MPa (1130 N at 0.9 MPa). With a 35 mm stroke and 16 mm diameter piston rod, it fits tight-automation tasks where a short, precise linear movement is needed.
This model carries the -S suffix, meaning a built-in magnet is factory-installed on the piston. That lets you clamp CMSG, DMSG, or EMSG reed or solid-state sensors directly onto the barrel for non-contact end-of-stroke or mid-stroke position sensing—no external brackets or flags required.
Airtac SC40 Standard Cylinder SC40X35S Technical Specifications
| Model | Airtac SC40 Standard Cylinder SC40X35S |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 35 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 SC40X35S
| SC | Standard tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×35 | 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 SC40X35S Is Used
Short-Stroke Part Ejection
The 35 mm stroke and built-in magnet make this cylinder ideal for ejecting small parts from a fixture. The sensor confirms the rod has fully retracted before the next cycle starts, preventing jam-ups.
Compact Diverter Gate
Use the SC40X35S to actuate a small diverter flap on a conveyor line. The 628 N push force at 0.5 MPa is sufficient for light product sorting, and the magnetic piston enables simple sensor mounting for gate-open/gate-closed verification.
Lab Automation Clamping
In a benchtop diagnostic instrument, this cylinder provides a short, controlled clamping stroke for test cartridges. The integrated magnet allows position feedback via a DMSG sensor, ensuring the clamp is fully engaged before fluid transfer begins.
Is the Airtac SC40 Standard Cylinder SC40X35S the Right Cylinder?
For a 40 mm bore, this cylinder provides 628 N push at 0.5 MPa. If your load is lighter and you can reduce the footprint, step down to a 32 mm bore (402 N at 0.5 MPa). If you need more force, a 50 mm bore delivers 982 N at the same pressure. The 35 mm stroke is a standard option, keeping lead times short.
When replacing an existing cylinder, match five points: 40 mm bore, 35 mm stroke, PT1/4 port thread, the built-in magnet (-S), and the basic (no bracket) mounting. The SC is a tie-rod cylinder and is not dimensionally interchangeable with ISO 15552 profile cylinders.
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 SC40X35S FAQ
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, push force reaches 1130 N. The theoretical maximum at 1.0 MPa is 128 kgf.
Yes. The -S suffix in SC40X35S means it has a built-in magnet. You can clamp AirTAC CMSG (reed) or DMSG/EMSG (solid-state) sensors directly onto the barrel tie-rods to detect piston position without any additional mounting hardware.
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