Airtac SC50 Standard Cylinder SC50X20S
The AirTAC Airtac SC50 Standard Cylinder SC50X20S is a genuine double-acting standard air cylinder with a Ø50mm bore and 20mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ50 mm
- Stroke20 mm
- Port sizePT1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
About the Airtac SC50 Standard Cylinder SC50X20S
The SC50X20S is a compact-stroke member of the AirTAC SC tie-rod cylinder family, delivering 982 N of push force at 0.5 MPa (1374 N at 0.7 MPa). Its 20 mm rod and M16x1.5 knuckle thread provide rigid linear guidance for short-travel clamping, ejecting, and sorting tasks.
A built-in magnet (-S suffix) allows CMSG, DMSG, or EMSG reed and solid-state sensors to clamp directly onto the barrel for end-of-stroke or mid-position sensing without external brackets. The adjustable air cushion at both ends decelerates the piston smoothly, and the standard PT1/4 ports make pneumatic connection straightforward.
Airtac SC50 Standard Cylinder SC50X20S Technical Specifications
| Model | Airtac SC50 Standard Cylinder SC50X20S |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 20 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 SC50X20S
| SC | Standard tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×20 | 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 SC50X20S Is Used
Short-Stroke Clamping
The 20 mm stroke and 982 N force at 0.5 MPa make it ideal for pneumatic clamping fixtures in CNC machining and assembly cells where rapid, repeatable hold-down is required.
Part Ejection & Sorting
Quick 20 mm linear actuation for ejecting small parts from conveyors or diverting items into sorting lanes, with sensor confirmation via the built-in magnet.
Compact Test Rigs
Useful in laboratory test stands and quality-inspection fixtures requiring a short, controlled linear push with position feedback from barrel-mounted sensors.
Is the Airtac SC50 Standard Cylinder SC50X20S the Right Cylinder?
For applications needing slightly more force in the same form factor, the 63 mm bore SC63 series offers 1559 N at 0.5 MPa. If a lower force is acceptable and space is tight, the 40 mm bore provides 628 N. When replacing an existing cylinder, match all five key points: 50 mm bore, 20 mm stroke, PT1/4 port thread, the built-in magnet (-S), and the basic (no bracket) mounting configuration.
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 SC50X20S FAQ
At the standard operating pressure of 0.5 MPa, the push force is 982 N and the pull force is 825 N. At 0.7 MPa, push force increases to 1374 N. The maximum theoretical force at 1.0 MPa is 200 kgf (1961 N).
Yes. The -S suffix denotes a built-in magnet in the piston, making this cylinder directly compatible with AirTAC CMSG (reed) and DMSG/EMSG (solid-state) sensors that clamp onto the barrel tie-rods.
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