Airtac SC50 Standard Cylinder SC50X155
The AirTAC Airtac SC50 Standard Cylinder SC50X155 is a genuine double-acting standard air cylinder with a Ø50mm bore and 155mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ50 mm
- Stroke155 mm
- Port sizePT1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
About the Airtac SC50 Standard Cylinder SC50X155
The AirTAC SC50X155 is a double-acting tie-rod cylinder with a 50 mm bore and 155 mm stroke, delivering a push force of 982 N at 0.5 MPa and up to 1767 N at the 0.9 MPa maximum operating pressure. Its 20 mm diameter piston rod and M16x1.5 rod thread provide robust linear actuation for medium-duty tasks.
With a compact body length A of 150 mm, the total extended length reaches approximately 305 mm. The adjustable pneumatic cushion (21 mm length) decelerates the piston smoothly at end-of-stroke, reducing impact noise and vibration. Standard PT1/4 ports and TPU seals suit ambient temperatures from -20 to +70 °C.
Airtac SC50 Standard Cylinder SC50X155 Technical Specifications
| Model | Airtac SC50 Standard Cylinder SC50X155 |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 155 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 SC50X155
| SC | Standard tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×155 | 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 SC50X155 Is Used
Packaging & Palletizing
The 155 mm stroke and 982 N push force at 0.5 MPa handle case erecting, carton flap closing, and pallet layer forming in packging lines.
Clamping & Fixturing
Ideal for machine-tool fixtures and welding jigs where a 20 mm rod provides stiff, repeatable clamping force up to 1767 N at 0.9 MPa.
Diverting & Sorting
Used in convyor diveters and gate actuators to sort packages by weight or destination, leveraging the fast 30-800 mm/s speed range.
Is the Airtac SC50 Standard Cylinder SC50X155 the Right Cylinder?
Choose the SC50 bore for push forces around 982 N at 0.5 MPa. If your load requires more force, stepping up to the SC63 bore provides 1559 N at the same pressure; for a lighter, more compact solution, the SC40 bore offers 628 N. The 155 mm stroke is within the 1200 mm maximum standard stroke for this bore.
When replacing an existing cylinder, match five key points: 50 mm bore, 155 mm stroke, PT1/4 port thread, basic (no bracket) mounting, and confirm whether a magnet (-S) is needed for sensors. For strokes over 300 mm, consider an external guide to protect the rod from bending under side loads.
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 SC50X155 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 force at 1.0 MPa is 200 kgf.
No. This is a double-acting cylinder and does not hold position when pressure is exhausted or the valve is centred. To hold a load safely without live pressure, add a pilot-operated check valve or an external rod brake.
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