Airtac SC50 Standard Cylinder SC50X159S
The AirTAC Airtac SC50 Standard Cylinder SC50X159S is a genuine double-acting standard air cylinder with a Ø50mm bore and 159mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ50 mm
- Stroke159 mm
- Port sizePT1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
About the Airtac SC50 Standard Cylinder SC50X159S
The SC50X159S is a double-acting pneumatic cylinder with a 50 mm bore and 159 mm stroke, factory-equipped with a built-in magnet for direct mounting of CMSG/DMSG/EMSG reed or solid-state sensors. At 0.5 MPa it provides 982 N of push force and 825 N pull, stepping up to 1767 N at the maximum operating pressure of 0.9 MPa.
This model uses a 20 mm diameter piston rod with an M16x1.5 male thread and PT1/4 ports. The adjustable air cushion at each end (21 mm length) decelerates the piston smoothly, while the TPU seals suit standard operating temperatures from -20 to +70 °C. The body length A is 150 mm, giving an approximate extended length of 309 mm.
Airtac SC50 Standard Cylinder SC50X159S Technical Specifications
| Model | Airtac SC50 Standard Cylinder SC50X159S |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 159 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 SC50X159S
| SC | Standard tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×159 | 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 SC50X159S Is Used
Packaging Line Diverters
The 159 mm stroke and magnetic piston make this cylinder ideal for actuating diverter gates on packaging conveyors, where end-of-stroke sensors confirm gate position to the PLC.
Clamping & Fixturing
With 1767 N of clamping force available at 0.9 MPa and sensor feedback from the built-in magnet, it reliably holds workpieces in CNC fixtures and welding jigs.
Material Stops & Ejectors
Deploy the SC50X159S as a pneumatic stop or ejector in assembly stations; the adjustable cushion protects the tooling from impact at the end of the 159 mm travel.
Is the Airtac SC50 Standard Cylinder SC50X159S the Right Cylinder?
Choose the SC50 bore when your application needs roughly 1000 N of force at typical shop air; if you require more force at the same pressure, step up to the SC63 which delivers 1559 N at 0.5 MPa. For lighter, faster-moving loads the SC40 provides 628 N. At 159 mm stroke the rod is well supported inside the standard stroke range, but for strokes of 300 mm or more always check side-load conditions — an external guide or a guided cylinder is recommended to protect the rod bearing from bending moments.
To replace an existing cylinder, match five points: 50 mm bore, 159 mm stroke, PT1/4 port thread, the built-in magnet (-S suffix), and the basic (no bracket) mounting style. This tie-rod cylinder is shorter than an ISO 15552 profile and is not dimensionally interchangeable with that standard.
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 SC50X159S FAQ
At 0.5 MPa (5 bar) the push force is 982 N and the pull force is 825 N. At the maximum operating pressure of 0.9 MPa, push force increases to 1767 N. The theoretical maximum at 1.0 MPa is 200 kgf.
Yes. The -S suffix indicates a built-in magnet in the piston, so AirTAC CMSG (reed) or DMSG/EMSG (solid-state) sensors can be clamped directly onto the tie-rod barrel to detect piston position.
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