Airtac SC50 Standard Cylinder SC50X255
The AirTAC Airtac SC50 Standard Cylinder SC50X255 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 SC50X255
The AirTAC SC50X255 is a double-acting tie-rod cylinder with a 50 mm bore and a non-standard 255 mm stroke, delivering a push force of 982 N at 0.5 MPa. Its 20 mm diameter piston rod and M16x1.5 rod thread provide robust linear actuation for medium-duty tasks, while the 21 mm adjustable air cushion at each end decelerates the piston smoothly to reduce end-of-stroke impact.
This model features a body length A of 150 mm, resulting in a total extended length of approximately 405 mm. Operating on filtered air from 0.15 to 1.0 MPa, the SC50X255 uses standard PT1/4 ports and TPU seals for a temperature range of -20 to +70 °C. As a non-standard stroke, it is built to order for applications requiring a precise 255 mm linear movement.
Airtac SC50 Standard Cylinder SC50X255 Technical Specifications
| Model | Airtac SC50 Standard Cylinder SC50X255 |
|---|---|
| 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 SC50X255
| 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 SC50X255 Is Used
Product Diverting Gates
The 255 mm stroke provides a specific throw distance for medium-width conveyor diverters, using 982 N of push force at 0.5 MPa to reliably swing gates in packaging lines.
Clamping & Fixturing
Delivers controlled clamping force for woodworking or metal fabrication jigs. The adjustable cushion allows fast approach and gentle contact on delicate workpieces.
Agricultural Machinery Actuation
Operates chute controls or bin gates on farming equipment. The tie-rod design is serviceable, and the 255 mm stroke suits custom linkage geometries.
Is the Airtac SC50 Standard Cylinder SC50X255 the Right Cylinder?
Choose the SC50 bore for push forces around 982 N at 0.5 MPa. If your application requires higher force, stepping up to the SC63 bore provides 1559 N at the same pressure. For a shorter standard stroke within the 50 mm bore's 1200 mm maximum, consider the SC50X250 to avoid the lead time of a non-standard length.
For this 255 mm stroke, ensure the load is guided and side forces are minimized. Long, unsupported strokes on a 20 mm rod can experience bending under lateral loads; use external linear guides or a guided cylinder configuration to protect the rod bearings and seal. When replacing, match bore, stroke, PT port thread, basic mounting, and the optional magnet suffix if sensors are used.
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 SC50X255 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 increases to 1767 N. The theoretical maximum force at 1.0 MPa is 200 kgf.
No, the maximum standard stroke for the SC50 bore is 1200 mm, but 255 mm is not a listed standard increment. This is a non-standard, made-to-order stroke length. Standard options include 250 mm and 300 mm, which may be available with shorter lead times.
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