Airtac SC50 Standard Cylinder SC50X250S
The AirTAC Airtac SC50 Standard Cylinder SC50X250S is a genuine double-acting standard air cylinder with a Ø50mm 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.
- BoreØ50 mm
- Stroke250 mm
- Port sizePT1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
About the Airtac SC50 Standard Cylinder SC50X250S
The SC50X250S is a double-acting tie-rod cylinder delivering 982 N of push force at 0.5 MPa (1767 N at the 0.9 MPa maximum operating pressure). Its 20 mm diameter piston rod and 250 mm stroke suit medium-force clamping, pressing, and transfer tasks where a compact footprint is required.
This model includes a built-in magnet (-S suffix), allowing CMSG, DMSG, or EMSG reed and solid-state sensors to clamp directly onto the barrel for contactless position sensing. The body length A is 150 mm, giving a total extended length of approximately 400 mm. Ports are PT1/4 with an M16x1.5 rod thread, and the adjustable air cushion (21 mm) decelerates the piston quietly at end-of-stroke.
Airtac SC50 Standard Cylinder SC50X250S Technical Specifications
| Model | Airtac SC50 Standard Cylinder SC50X250S |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 250 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 SC50X250S
| SC | Standard tie-rod cylinder series. |
|---|---|
| 50 | 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.
Where the Airtac SC50 Standard Cylinder SC50X250S Is Used
Part Transfer & Indexing
Moves pallets or components between stations on automated assembly lines. The 250 mm stroke and sensor-ready design enable precise mid-stroke position confirmation.
Clamping & Holding Fixtures
Applies 1767 N of clamping force at 0.9 MPa for woodworking jigs, welding fixtures, or test stands. The adjustable cushion reduces impact when the clamp contacts the workpiece.
Pressing & Light Forming
Delivers controlled linear force for small press-fit operations, riveting, or light forming dies. Magnetic piston sensors verify rod position to ensure complete cycle strokes.
Is the Airtac SC50 Standard Cylinder SC50X250S the Right Cylinder?
For applications needing slightly more force at the same pressure, stepping up to the 63 mm bore (1559 N at 0.5 MPa) is a natural choice; if space or weight is critical, the 40 mm bore (628 N) may suffice. The built-in magnet makes this cylinder ready for sensor integration without external brackets.
When replacing an existing cylinder, match five points: 50 mm bore, 250 mm stroke, PT1/4 ports, the -S magnet option for sensor compatibility, and the basic (no bracket) mounting style. At 250 mm stroke, the 20 mm rod is well-supported for axial loads, but any significant side load should be managed with an external guide or a guided cylinder to prevent rod bearing wear.
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 SC50X250S FAQ
At 0.5 MPa the cylinder pushes with 982 N and pulls with 825 N. At the maximum operating pressure of 0.9 MPa, push force reaches 1767 N. The theoretical maximum at 1.0 MPa is 200 kgf.
Yes. The -S suffix denotes a built-in magnet in the piston, so AirTAC CMSG (reed) and DMSG/EMSG (solid-state) sensors clip directly onto the barrel's sensor groove without any additional brackets.
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