
The AirTAC Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X750H is a genuine double-acting standard air cylinder with a Ø250mm bore and 750mm stroke, PT1" air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC250X750H is a large-bore double-acting pneumatic cylinder delivering 24,544 N of push force at 0.5 MPa and up to 44,178 N at the maximum operating pressure of 0.9 MPa. Its 750 mm stroke, combined with a 50 mm diameter piston rod and M42x2 rod thread, makes it suitable for heavy industrial actuation where high force and extended reach are required.
This variant is fitted with Viton (FKM) seals, designated by the 'H' suffix, which shifts the operating temperature range from the standard -20 to +70 °C up to 0 to +150 °C, making it suitable for hot or aggressive environments. It features a 40 mm adjustable air cushion and PT1 inch ports, and as a tie-rod cylinder, its body length A is 294 mm.
| Model | Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X750H |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø250 mm |
| Stroke | 750 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. |
| ×750 | 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 Viton seals rated for 0 to 150 °C, this cylinder reliably operates mold clamps and material gates in foundries and heat-treatment facilities where ambient temperatures exceed standard limits.
Generating up to 44,178 N of force at 0.9 MPa, the SC250X750H provides the high clamping pressure needed for large-scale hydraulic-style press fixtures and heavy machining centers.
The 750 mm stroke and 50 mm robust rod are ideal for pushing heavy pallets or lifting large components on high-capacity lift tables and transfer stations in demanding logistics environments.
For applications requiring slightly less force, consider stepping down to the SC200 bore, which provides 15,708 N of push force at 0.5 MPa. With a 750 mm stroke, the 50 mm rod has a long unsupported extension; ensure the load is guided externally to prevent rod bending and bearing side-load damage, or consider an external guide rail. For a direct replacement, match the 250 mm bore, 750 mm stroke, PT1 inch port thread, basic mounting, and the high-temperature Viton seal material.
Quick checklist
At the standard 0.5 MPa operating pressure, the push force is 24,544 N. At the maximum operating pressure of 0.9 MPa, the push force increases to 44,178 N. The theoretical maximum force at 1.0 MPa is 5,006 kgf.
No. The SC series is a tie-rod cylinder and is not dimensionally interchangeable with ISO 15552 profile cylinders. It is, however, an ISO 6430 class cylinder. Use only AirTAC SC-series mounting accessories, such as the F-SC250LB foot mount or F-SC250TC centre trunnion.
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