Airtac SC50 Standard Cylinder SC50X1800STC
The AirTAC Airtac SC50 Standard Cylinder SC50X1800STC is a genuine double-acting standard air cylinder with a Ø50mm bore and 1800mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ50 mm
- Stroke1800 mm
- Port sizePT1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
About the Airtac SC50 Standard Cylinder SC50X1800STC
This SC50X1800STC is a double-acting pneumatic cylinder delivering 982 N of push force at 0.5 MPa (1767 N at the 0.9 MPa max operating pressure). The 1800 mm stroke is a non-standard, made-to-order length that exceeds the 1200 mm maximum standard stroke for the 50 mm bore, suiting it to long-reach linear tasks.
Built as a genuine AirTAC tie-rod cylinder, it features a 20 mm diameter piston rod, PT1/4 ports, and a 21 mm adjustable air cushion at each end. The -S suffix adds a built-in magnet for direct mounting of CMSG/DMSG/EMSG sensors, while the TC centre trunnion mount (supplied with TCM1 bracket, part code F-SC50TC) allows the cylinder to pivot, accommodating swinging loads on this extended axis.
Airtac SC50 Standard Cylinder SC50X1800STC Technical Specifications
| Model | Airtac SC50 Standard Cylinder SC50X1800STC |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 1800 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 SC50X1800STC
| SC | Standard tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×1800 | 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 SC50X1800STC Is Used
Long-Stroke Material Transfer
Pushes or pulls bins, pallets, or components across an 1800 mm span on a conveyor line, with trunnion mounting allowing the cylinder body to follow the arc of a transfer arm.
Automated Spray or Coating Booms
Extends and retracts a spray head or sensor array over a wide work area. The built-in magnet enables end-of-stroke sensing to synchronize the spray cycle precisely.
Ventilation or Damper Actuation
Operates large ventilation dampers or greenhouse vents requiring a long, smooth linear stroke. The TC mount pivots the cylinder body as the damper louver arcs open and closed.
Is the Airtac SC50 Standard Cylinder SC50X1800STC the Right Cylinder?
Choose the SC50 bore when your application needs roughly 982 N at 0.5 MPa. If you require more force, stepping up to the SC63 bore provides 1559 N at the same pressure. For lower force needs, the SC40 delivers 628 N. This 1800 mm stroke is exceptionally long for a 20 mm rod; side loading or column buckling is a real risk. You must use an external linear guide or rod support to prevent bending, or consider a guided cylinder if the load is not perfectly axial.
To replace an existing cylinder, match five points: 50 mm bore, 1800 mm stroke, PT port thread, the TC centre-trunnion mounting style with TCM1 bracket, and the built-in magnet (-S) for sensor compatibility. This tie-rod design is not dimensionally interchangeable with ISO 15552 cylinders.
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 SC50X1800STC FAQ
At the standard 0.5 MPa operating pressure, the cylinder pushes with 982 N. At the maximum operating pressure of 0.9 MPa, the push force increases to 1767 N. The theoretical maximum at 1.0 MPa is 200 kgf.
A 20 mm diameter rod extending 1800 mm is susceptible to buckling and bending under side loads. You must guide the load externally with a linear rail or rod support. The TC centre trunnion mount helps by placing the pivot point near the cylinder's centre of gravity, but it does not eliminate the need for external guidance on the rod end.
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