The AirTAC SC50 Standard Cylinder SC50X75STC is a genuine double-acting standard air cylinder with a Ø50mm bore and 75mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC50X75STC is a double-acting pneumatic cylinder delivering 982 N of push force at 0.5 MPa (1767 N at 0.9 MPa), making it a robust mid-range actuator for industrial automation. This 50 mm bore model features a 20 mm diameter piston rod with M16x1.5 male threads and a 21 mm adjustable air cushion at each end to decelerate the load smoothly.
This specific configuration includes a built-in magnet (-S) for direct mounting of CMSG/DMSG/EMSG reed or solid-state sensors, and a centre trunnion mount (TC) supplied with the TCM1 bracket for pivoting applications. The body length is 150 mm, giving a total extended length of approximately 225 mm for this 75 mm stroke unit.
| Model | Airtac SC50 Standard Cylinder SC50X75STC |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 75 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.
| 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.
| SC | Standard tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×75 | 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.
The 75 mm stroke and centre trunnion mount allow this cylinder to pivot a diverter gate on a conveyor line, sorting packages with the 982 N push force available at 0.5 MPa.
With a built-in magnet for end-of-stroke sensing, this SC50X75STC confirms clamp closure in automated welding or assembly jigs, applying consistent holding force via its 20 mm rod.
Ideal for opening and closing quarter-turn valves where the trunnion mount absorbs the arc of motion. The adjustable cushion protects the valve seat from impact damage at the end of the 75 mm travel.
Choose the SC50 when your application needs around 982 N of force at standard plant pressure. If you require more force, step up to the SC63 bore which provides 1559 N at 0.5 MPa; for a lighter, more compact solution, the SC40 delivers 628 N. The 75 mm stroke is a standard length within the SC50’s 1200 mm maximum range.
For replacement, match five key points: 50 mm bore, 75 mm stroke, PT port thread, centre trunnion (TC) mounting with TCM1 bracket, and the built-in magnet (-S) for sensor compatibility. Always ensure the load is guided externally if side forces are present, as tie-rod cylinders are designed for axial push-pull motion.
Quick checklist
At 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 at 1.0 MPa is 200 kgf.
This specific model (SC50X75STC) uses standard TPU seals with a temperature range of -20 to +70 °C. For high-temperature applications up to +150 °C, you would need the Viton seal option, designated by the suffix 'H' (e.g., SC50X75STCH).
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