Airtac SC50 Standard Cylinder SC50X135S
The AirTAC Airtac SC50 Standard Cylinder SC50X135S 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 SC50X135S
The SC50X135S is a double-acting pneumatic cylinder delivering 982 N of push force at 0.5 MPa (1767 N at the maximum operating pressure of 0.9 MPa). With a 50 mm bore and 135 mm stroke, this tie-rod actuator uses a 20 mm diameter piston rod and PT1/4 ports, making it a robust mid-range workhorse for industrial automation.
This model includes the -S suffix, indicating a built-in magnet embedded in the piston. This allows easy, tool-free mounting of CMSG, DMSG, or EMSG reed and solid-state sensors directly onto the barrel for precise end-of-stroke or mid-stroke position sensing. The standard TPU seals provide reliable operation from -20 to +70 °C, and the adjustable air cushion at each end decelerates the piston smoothly, reducing impact noise and vibration.
Airtac SC50 Standard Cylinder SC50X135S Technical Specifications
| Model | Airtac SC50 Standard Cylinder SC50X135S |
|---|---|
| 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 SC50X135S
| 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 SC50X135S Is Used
Material Handling & Sorting
The 135 mm stroke and sensor-ready design make this cylinder ideal for pusher and diverter stations on conveyors, where reliable mid-stroke position confirmation is needed to sequence product flow.
Clamping & Fixturing
With 982 N of clamping force at standard line pressure, the SC50X135S securely holds workpieces during machining, welding, or assembly. The built-in magnet enables clamp-open and clamp-closed verification.
Press & Forming Assist
Deploy this cylinder in light-duty press or forming operations. The 20 mm rod provides good column strength for the 135 mm stroke, and the adjustable cushion protects tooling at the end of the pressing cycle.
Is the Airtac SC50 Standard Cylinder SC50X135S the Right Cylinder?
For applications requiring slightly more force, consider stepping up to the 63 mm bore SC63 series, which provides 1559 N of push force at 0.5 MPa. If space is a premium, the 40 mm bore SC40 series offers 628 N. When replacing an existing cylinder, match five key points: the 50 mm bore, 135 mm stroke, PT1/4 port thread, the basic mounting configuration (no integrated bracket), and the -S magnet option for sensor compatibility. For strokes of 300 mm or longer, always evaluate side-load conditions—an external guide or guided cylinder is recommended to protect the rod bearing from bending moments.
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 SC50X135S FAQ
At the standard operating pressure of 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.
Yes. The -S suffix in the model code SC50X135S designates a built-in magnet. You can directly clamp AirTAC CMSG (reed) or DMSG/EMSG (solid-state) sensors onto the barrel's tie-rod slots for contactless position detection without any additional brackets.
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