Airtac SC50 Standard Cylinder SC50X1220S
The AirTAC Airtac SC50 Standard Cylinder SC50X1220S is a genuine double-acting standard air cylinder with a Ø50mm bore and 1220mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ50 mm
- Stroke1220 mm
- Port sizePT1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
About the Airtac SC50 Standard Cylinder SC50X1220S
The AirTAC SC50X1220S is a double-acting tie-rod cylinder with a 50 mm bore and an extended 1220 mm stroke, built with a factory-installed magnet for direct mounting of CMSG/DMSG/EMSG reed or solid-state sensors. At 0.5 MPa it delivers 982 N pushing force, stepping up to 1767 N at the maximum operating pressure of 0.9 MPa, driven by a 20 mm diameter piston rod with M16x1.5 male threads.
This non-standard stroke exceeds the standard 1200 mm maximum for the 50 mm bore, making it a made-to-order unit for applications needing extra reach. The cylinder body length A is 150 mm, giving a total extended length of approximately 1370 mm. It uses PT1/4 ports and an adjustable air cushion of 21 mm to decelerate the piston quietly at end-of-stroke.
Airtac SC50 Standard Cylinder SC50X1220S Technical Specifications
| Model | Airtac SC50 Standard Cylinder SC50X1220S |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 1220 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 SC50X1220S
| SC | Standard tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×1220 | 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 SC50X1220S Is Used
Long-Reach Part Transfer
The 1220 mm stroke pushes or pulls components across wide conveyor gaps or between distant workstations, with the magnet confirming end-of-stroke position.
Automated Sorting Gate
Operates a tall diverter gate or flap in a material handling line, using the long stroke to fully open or close a large chute with 982 N of force.
Extended Clamping Fixture
Applies clamping pressure deep inside a large weldment or assembly jig, where a standard-stroke cylinder cannot reach the clamping point.
Is the Airtac SC50 Standard Cylinder SC50X1220S the Right Cylinder?
Choose the SC50 bore when your application needs roughly 982 N of push at standard shop air (0.5 MPa). If you require more force, the SC63 delivers 1559 N at the same pressure; for a lighter, more compact solution, the SC40 provides 628 N. This 1220 mm stroke is non-standard, so confirm lead time with your AirTAC distributor.
For any stroke above 300 mm, side loads become a critical design factor—the unsupported 20 mm rod can bend under lateral force. Use an external linear guide or a guided cylinder to absorb side loads and protect the rod bearing and piston seals. When replacing an existing cylinder, match five points: 50 mm bore, 1220 mm stroke, PT1/4 port thread, the built-in magnet (-S), and your required mounting accessory.
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 SC50X1220S FAQ
At 0.7 MPa (7 bar) the SC50 bore generates 1374 N of pushing force. The maximum force at 0.9 MPa is 1767 N. Always size the cylinder using the force at your specific working pressure.
Only if the load is perfectly axial with no side forces. A 1220 mm stroke with a 20 mm rod is highly susceptible to bending and bearing wear under side load. We strongly recommend an external guide rail or a guided cylinder for any off-axis loading.
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