The AirTAC Airtac SC Standard Cylinders SC50X800T is a genuine double-acting standard air cylinder with a Ø50mm bore and 800mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The AirTAC SC50X800T is a double-acting tie-rod cylinder with NPT 1/4 tapered ports, built for North-American imperial plumbing. Its 50 mm bore produces about 982 N at 0.5 MPa (1374 N at 0.7 MPa), and the 800 mm stroke fits long-reach ejector and feed strokes without stepping up to a 63 mm body. Because the ports are NPT, the seal forms on the tapered thread itself with sealant or tape rather than on a bonded washer, so this T-version drops straight into panels piped to NPT manifolds. The bore-50 body length A is 150 mm, so the fully extended length is roughly 950 mm, and the piston carries a 20 mm rod with an adjustable 21 mm cushion at each end.
| Model | Airtac SC Standard Cylinders SC50X800T |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 800 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. |
| ×800 | 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.
An 800 mm stroke sweeps a full pallet-roller lane width, and the 982 N push at 0.5 MPa kicks cartons or totes off the line end cleanly at 30-800 mm/s.
Raising a counterweighted machine guard or gate through 800 mm of travel suits the long stroke; the 21 mm adjustable cushions decelerate the piston so the gate does not slam at the top of travel.
US-built stamping and molding presses piped in NPT use this cylinder to eject deep-formed parts; the 1767 N thrust available at 0.9 MPa clears parts that stick in the die.
Thread-first check: confirm your existing fittings and manifold are NPT. The standard SC50 uses PT (Rc) tapered ports and the plain G-version uses parallel BSPP threads that seal on a face washer - neither is the right match for an NPT circuit, so order the T suffix deliberately. Then match the 5-point replacement data: bore 50, stroke 800, NPT 1/4 port, mounting accessory (F-SC50LB, FA, FB, CA, CB, TC or TCM1) and magnet (-S) if a CMSG/DMSG/EMSG sensor is planned. Sizing both ways: if 982 N at 0.5 MPa is marginal for your load, step up to the SC63 (1559 N push at 0.5 MPa); if 982 N gives you a wide margin, the SC40 at 628 N push may save envelope and air consumption. At 800 mm the unsupported 20 mm rod is exposed to bending under any side load, so plan an external guide or a guided cylinder arrangement for the tooling.
Quick checklist
At 0.5 MPa the 50 mm bore gives 982 N on the push stroke and 825 N on the pull (rod) stroke. At the 0.9 MPa maximum operating pressure the push force rises to 1767 N, and the theoretical maximum at 1.0 MPa is 200 kgf. Operating range is 0.15-1.0 MPa with a 1.5 MPa proof pressure, and the piston runs 30-800 mm/s on filtered air.
You can physically adapt PT-to-NPT fittings, but for a clean replacement match the T-version: bore 50, stroke 800, NPT 1/4 ports, the same mounting accessory code and the -S magnet option if sensors are fitted. Note the SC is a tie-rod cylinder that is shorter than an ISO 15552 profile, so it is not dimensionally interchangeable with ISO 15552 machines - match against another AirTAC SC of the same specification. On an 800 mm stroke, add an external guide if the load carries any side force.
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