Airtac SC50 Standard Cylinder SC50X135STC
The AirTAC Airtac SC50 Standard Cylinder SC50X135STC is a genuine double-acting standard air cylinder with a Ø50mm bore and 135mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ50 mm
- Stroke135 mm
- Port sizePT1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
About the Airtac SC50 Standard Cylinder SC50X135STC
The SC50X135STC is a double-acting pneumatic cylinder delivering 982 N of push force at 0.5 MPa and up to 1767 N at 0.9 MPa. Its 135 mm stroke is ideal for medium-stroke clamping, pressing, and material-handling tasks that require a compact footprint.
This model includes a built-in magnet (-S) for direct mounting of CMSG/DMSG/EMSG sensors, and ships with a TC centre trunnion mount plus TCM1 bracket (F-SC50TC) for pivoting applications. The 20 mm diameter piston rod and 21 mm adjustable air cushion provide smooth end-of-stroke deceleration.
Airtac SC50 Standard Cylinder SC50X135STC Technical Specifications
| Model | Airtac SC50 Standard Cylinder SC50X135STC |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 135 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 SC50X135STC
| SC | Standard tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×135 | 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 SC50X135STC Is Used
Conveyor Diverters
Pivoting gate or diverter arms on packaging lines, where the centre trunnion mount allows the cylinder body to swing as it extends and retracts.
Clamping Fixtures
Medium-force workpiece clamping in machining or welding jigs, with magnetic sensors confirming clamp/unclamp position for interlock safety.
Press Mechanisms
Light assembly presses or riveting stations requiring 135 mm of linear travel and consistent force up to 1767 N at full line pressure.
Is the Airtac SC50 Standard Cylinder SC50X135STC the Right Cylinder?
For higher force, step up to the 63 mm bore (1559 N at 0.5 MPa); for a lighter, faster actuator, the 40 mm bore offers 628 N. When replacing, match bore, stroke, PT port thread, centre trunnion mounting, and the -S magnet option to ensure sensor compatibility. The trunnion pivot allows the cylinder to swing, reducing side-load stress on the rod bearing.
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 SC50X135STC FAQ
At 0.5 MPa it pushes with 982 N and pulls with 825 N. At 0.7 MPa push force rises to 1374 N, and at the maximum operating pressure of 0.9 MPa it reaches 1767 N.
No. The SC series is a tie-rod cylinder and is shorter than an ISO 15552 cylinder, so it is not dimensionally interchangeable. Replace only with another AirTAC SC50 tie-rod cylinder matching the 135 mm stroke, PT ports, TC mount, and magnet option.
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