Airtac SC50 Standard Cylinder SC50X25SH
The AirTAC Airtac SC50 Standard Cylinder SC50X25SH is a genuine double-acting standard air cylinder with a Ø50mm bore and 25mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ50 mm
- Stroke25 mm
- Port sizePT1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
About the Airtac SC50 Standard Cylinder SC50X25SH
The SC50X25SH is a compact double-acting tie-rod cylinder delivering 982 N of push force at 0.5 MPa, ideal for short-stroke clamping or ejecting tasks in hot environments. Its 25 mm stroke combined with a 20 mm diameter piston rod provides a rigid, responsive actuation package.
This model is factory-equipped with a built-in magnet (-S) for direct mounting of CMSG/DMSG/EMSG sensors, and Viton (FKM) seals (-H) that shift the operating temperature range to 0 to +150°C. The PT1/4 port and adjustable air cushion complete a robust actuator for high-temperature automation cells.
Airtac SC50 Standard Cylinder SC50X25SH Technical Specifications
| Model | Airtac SC50 Standard Cylinder SC50X25SH |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 25 mm |
| Acting type | Double acting |
| Port size | PT1/4 |
| Rod thread | M16×1.5 |
| 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (approx.) | 200 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SC50 Standard Cylinder SC50X25SH
| SC | Standard tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×25 | 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 SC50 Standard Cylinder SC50X25SH Is Used
Hot Press Ejection
Viton seals allow this cylinder to eject parts from heated platen presses up to 150°C without seal degradation.
Sensor-Monitored Clamping
The built-in magnet enables end-of-stroke sensing with CMSG/DMSG sensors, confirming clamp engagement in automated welding fixtures.
Lab Autoclave Actuation
Withstands repeated high-temperature sterilization cycles, making it suitable for actuating doors or lifts in autoclave and clean-in-place systems.
Is the Airtac SC50 Standard Cylinder SC50X25SH the Right Cylinder?
For higher force in the same footprint, step up to the 63 mm bore (1559 N at 0.5 MPa); for a lighter, faster actuator, the 40 mm bore provides 628 N. This short 25 mm stroke does not require external guides for on-axis loads, but any side force must be managed with a guide rod or rail. When replacing, match five points: 50 mm bore, 25 mm stroke, PT thread, Viton seals, and the -S magnet for sensor compatibility.
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 SC50 Standard Cylinder SC50X25SH FAQ
At 0.5 MPa the push force is 982 N and the pull force is 825 N. At the maximum operating pressure of 0.9 MPa, the push force reaches 1767 N. The theoretical maximum at 1.0 MPa is 200 kgf.
No. The SC50X25SH is a double-acting cylinder and will drift or drop if pressure is lost or the valve is centered. For load holding without live pressure, you must add a pilot-operated check valve or an external rod brake.
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