
The AirTAC Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X500S is a genuine double-acting standard air cylinder with a Ø250mm bore and 500mm stroke, PT1" air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC250X500S is a large-bore double-acting tie-rod cylinder delivering 24544 N of push force at just 0.5 MPa (44178 N at the 0.9 MPa maximum operating pressure). With a 50 mm diameter piston rod and a 500 mm stroke, it is built for heavy industrial linear actuation where substantial force is needed in a compact footprint.
This model includes a built-in magnet (-S suffix), allowing CMSG, DMSG, or EMSG reed and solid-state sensors to clamp directly onto the barrel for reliable end-of-stroke or mid-stroke position sensing. The adjustable air cushion (40 mm length) decelerates the piston smoothly at each end, protecting the end caps during high-energy stops. The body length A is 294 mm, giving a total extended length of approximately 794 mm.
| Model | Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X500S |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø250 mm |
| Stroke | 500 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. |
| ×500 | 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.
With 24544 N at 0.5 MPa, the SC250X500S provides the sustained force needed for hydraulic-press alternatives, metal forming, and die-casting ejection systems.
Operates lift tables, heavy-duty pallet dispensers, and transfer carriages. The built-in magnet enables precise position confirmation for automated logistics sequences.
Delivers controlled, repeatable linear force for load testing of beams, concrete samples, and large mechanical assemblies, with sensor feedback for data acquisition.
The SC250 is the largest bore in the standard SC tie-rod family, ideal when the SC200 (15708 N push at 0.5 MPa) cannot deliver enough force. If your load is lighter, stepping down to the SC200 reduces air consumption and physical size. For strokes of 300 mm or more, including this 500 mm stroke, always evaluate side-load conditions—an unsupported 50 mm rod at full extension can experience bending stress under off-axis forces. Use an external linear guide or a guided cylinder if the load is not perfectly aligned.
To replace an existing unit, match five points: 250 mm bore, 500 mm stroke, PT port thread, basic mount (no bracket), and the -S magnet for sensor compatibility. The SC is a tie-rod cylinder, not an ISO 15552 profile cylinder, so it is dimensionally shorter and not interchangeable with ISO 15552 mounts. This bore is classified as ISO 6430 class for heavy-duty applications.
Quick checklist
At 0.5 MPa air pressure, the push force is 24544 N and the pull force is 23562 N. At the maximum operating pressure of 0.9 MPa, push force reaches 44178 N. The theoretical maximum at 1.0 MPa is 5006 kgf, but the cylinder is rated for 0.15–1.0 MPa operation.
No. The SC250X500S is a double-acting cylinder and will not hold position or load when air pressure is exhausted or the directional valve is centered—the piston can drift or drop. If load holding is required, add a pilot-operated check valve, external rod brake, or mechanical lock.
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