The AirTAC SC50 Standard Cylinder SC50X870S is a genuine double-acting standard air cylinder with a Ø50mm bore and 870mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC50X870S delivers 982 N of push force at 0.5 MPa (1767 N at 0.9 MPa max operating pressure), driven by a 20 mm diameter piston rod. This model includes a built-in magnet (-S suffix), allowing CMSG, DMSG, or EMSG reed and solid-state sensors to clamp directly onto the tie-rod barrel for reliable end-of-stroke or mid-position sensing without external brackets.
The 870 mm stroke is within the 1200 mm maximum standard stroke for 50 mm bore SC cylinders, and the adjustable pneumatic cushion (21 mm length) decelerates the piston smoothly at both ends. The body length A is 150 mm, giving a total extended length of approximately 1020 mm. Ports are PT1/4 with an M16x1.5 rod thread, and the standard TPU seal operates from -20 to +70 °C.
| Model | Airtac SC50 Standard Cylinder SC50X870S |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 870 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. |
| ×870 | 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 870 mm stroke moves components between distant conveyor stations or pick-and-place nests, with the magnetic piston enabling sensor confirmation at both ends of travel.
Provides 982 N of clamping force at standard line pressure, ideal for holding workpieces during welding or assembly, with position feedback from barrel-mounted sensors.
Actuates long-throw diverter gates on packaging lines, using the adjustable cushion to manage end-of-stroke impact at higher cycle rates.
For higher force at the same pressure, step up to the 63 mm bore (1559 N push at 0.5 MPa); to reduce air consumption and footprint, the 40 mm bore provides 628 N. At 870 mm stroke, the 20 mm rod is unsupported beyond the front bearing—avoid direct side loads or couple the rod to an external linear guide to prevent rod bending and premature seal wear. When replacing an existing unit, match five points: 50 mm bore, 870 mm stroke, PT1/4 ports, the built-in magnet (-S) for sensor compatibility, and the basic (no bracket) mounting configuration.
Quick checklist
At 0.7 MPa (7 bar) the SC50 cylinder produces 1374 N of push force and 825 N of pull force on the retract stroke. The maximum operating force at 0.9 MPa is 1767 N push.
Yes. The -S suffix indicates a built-in magnet in the piston, so AirTAC CMSG, DMSG, or EMSG series sensors mount directly on the tie-rod barrel. A non-S version lacks this magnet and is not compatible with barrel-mounted sensors.
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