Airtac SC50 Standard Cylinder SC50X255S
The AirTAC Airtac SC50 Standard Cylinder SC50X255S is a genuine double-acting standard air cylinder with a Ø50mm bore and 255mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ50 mm
- Stroke255 mm
- Port sizePT1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
About the Airtac SC50 Standard Cylinder SC50X255S
The SC50X255S delivers 982 N of push force at 0.5 MPa, scaling up to 1767 N at the maximum operating pressure of 0.9 MPa. This double-acting tie-rod cylinder uses a 20 mm diameter piston rod and PT1/4 ports, with a 21 mm adjustable air cushion at each end to decelerate the load smoothly.
The built-in magnet, designated by the -S suffix, allows direct mounting of CMSG, DMSG, or EMSG reed and solid-state sensors on the barrel for non-contact position sensing. With a 255 mm stroke and a body length A of 150 mm, the total extended length is approximately 405 mm, fitting well within the 1200 mm maximum standard stroke for the 50 mm bore.
Airtac SC50 Standard Cylinder SC50X255S Technical Specifications
| Model | Airtac SC50 Standard Cylinder SC50X255S |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 255 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 SC50X255S
| SC | Standard tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×255 | 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 SC50X255S Is Used
Material Stops & Diverters
The 255 mm stroke and 982 N push force at 0.5 MPa are ideal for actuating gates or stops on conveyor lines, reliably diverting packages or pallets with position confirmation via the built-in magnet sensors.
Automated Clamping
Delivers consistent clamping force for CNC fixtures or welding jigs. The adjustable cushion protects tooling from impact, while the magnetic piston enables cycle-start confirmation through CMSG/DMSG sensors.
Lift & Transfer Mechanisms
Suitable for short vertical lifts or horizontal transfer shuttles in pick-and-place stations, where the 1767 N maximum force at 0.9 MPa provides a robust safety margin for handled payloads.
Is the Airtac SC50 Standard Cylinder SC50X255S the Right Cylinder?
For applications needing slightly less force, the 40 mm bore SC series provides 628 N at 0.5 MPa, while stepping up to the 63 mm bore raises capability to 1559 N at the same pressure. The 255 mm stroke is a standard offering, but ensure the 20 mm rod is adequately supported if side loads are present—external linear guides or a guided cylinder configuration are recommended for strokes over 300 mm to prevent rod bending and premature bearing wear.
When replacing an existing cylinder, match five key points: 50 mm bore, 255 mm stroke, PT1/4 port thread, the built-in magnet (-S suffix), and the basic mounting style. This model does not include a mounting bracket; order FA, FB, CA, CB, LB, or TC accessories separately using the F-SC50 prefix.
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 SC50X255S FAQ
At 0.5 MPa, the cylinder provides 982 N push and 825 N pull. At 0.7 MPa, push force increases to 1374 N, and at the maximum operating pressure of 0.9 MPa, it reaches 1767 N. The theoretical maximum force at 1.0 MPa is 200 kgf.
Yes. The -S suffix indicates a built-in magnet in the piston. You can clamp AirTAC CMSG (reed) or DMSG/EMSG (solid-state) sensors directly onto the barrel tie-rods to detect piston position without additional brackets.
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