
The AirTAC Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X450S is a genuine double-acting standard air cylinder with a Ø250mm bore and 450mm stroke, PT1" air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC250X450S is a large-bore double-acting tie-rod cylinder delivering substantial force for heavy-duty industrial automation. With a 250 mm bore and 450 mm stroke, it generates 24544 N of push force at 0.5 MPa and up to 44178 N at the maximum operating pressure of 0.9 MPa, driven by a robust 50 mm diameter piston rod.
This model includes a built-in magnet (-S suffix), allowing direct mounting of CMSG, DMSG, or EMSG reed and solid-state sensors on the barrel for precise end-of-stroke or mid-position detection. The adjustable air cushion at both ends, with a 40 mm cushion length, decelerates high-inertia loads smoothly, protecting the cylinder and tooling.
| Model | Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X450S |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø250 mm |
| Stroke | 450 mm |
| Acting type | Double acting |
| Port size | PT1" |
| Rod thread | M42×2 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 40 mm |
| Max stroke | Up to 1500 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 | 24544 N | 23562 N |
| 0.7 MPa | 34361 N | — |
| Max (approx.) | 5006 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. |
|---|---|
| 250 | Bore size in mm. |
| ×450 | 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.
Powers large forming or stamping press beds requiring consistent, high-force linear motion at 24544 N, with sensor feedback confirming each cycle.
Operates heavy slide gates on silos or hoppers handling aggregates, using the 450 mm stroke for full-open/full-close and the magnet for position verification.
Applies controlled, repeatable loads up to 44178 N in material fatigue or component testing fixtures, with adjustable cushioning to protect sensitive load cells.
Select the SC250X450S when your application requires a force class around 24544 N at standard plant air pressure. If a lighter, more compact solution is acceptable, stepping down to the 200 mm bore reduces push force to 15708 N at 0.5 MPa. For strokes of this length, ensure the load is guided externally to prevent excessive side-load bending moments on the 50 mm rod. For direct replacement, match bore (250 mm), stroke (450 mm), PT port thread, the built-in magnet (-S), and basic mounting configuration.
Quick checklist
At 0.5 MPa (approx. 73 psi) air pressure, the cylinder produces 24544 N pushing force and 23562 N pulling force. At the maximum operating pressure of 0.9 MPa, the push force increases to 44178 N.
Yes. The -S suffix indicates a built-in magnet around the piston, making the barrel compatible with AirTAC CMSG (reed) and DMSG/EMSG (solid-state) sensors, which simply clamp onto the tie-rod tube for non-contact position sensing.
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