
The AirTAC Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X500H 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 SC250X500H is a large-bore double-acting pneumatic cylinder delivering a substantial 24544 N of push force at 0.5 MPa (44178 N at the 0.9 MPa maximum operating pressure). Its 50 mm diameter piston rod and 40 mm adjustable air cushion are built to manage the high inertial loads common in heavy-duty industrial automation.
This model is equipped with Viton (FKM) seals, extending the operating temperature range to 0–150 °C for reliable performance in hot or chemically aggressive environments. With a 500 mm stroke and a body length A of 294 mm, the total extended length reaches 794 mm, making it a powerful actuator for large-scale pressing, clamping, and lifting tasks.
| Model | Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X500H |
|---|---|
| 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.
Generates up to 44178 N of force at 0.9 MPa, ideal for operating large mechanical presses, stamping dies, and heavy material forming tools in automotive and metalworking plants.
Controls large diverter gates and discharge chutes for aggregates, grain, or mining materials. The 24544 N force at standard 0.5 MPa line pressure easily actuates heavy, stubborn mechanisms.
The Viton seals allow this cylinder to operate reliably in ambient temperatures up to 150°C, making it suitable for clamping molds, moving ladles, or actuating dampers near furnaces and foundry equipment.
For applications requiring slightly less force, consider stepping down to the 200 mm bore SC200 series, which provides 15708 N of push at 0.5 MPa. If even higher force is needed, confirm availability of larger custom solutions. At a 500 mm stroke, the 50 mm rod provides excellent rigidity, but any significant side loading should be managed with an external guide or linear rail to prevent rod bending and premature bearing wear.
To ensure a correct drop-in replacement, match five key specifications: 250 mm bore, 500 mm stroke, PT port thread, basic (no bracket) mounting, and the absence of a built-in magnet. This model uses the standard PT thread; a G thread version is also available under a different ordering code.
Quick checklist
At the standard 0.5 MPa operating pressure, the push force is 24544 N and the pull force is 23562 N. At the maximum operating pressure of 0.9 MPa, the push force increases to 44178 N. The theoretical maximum force at 1.0 MPa is 5006 kgf.
No. The SC series is a double-acting cylinder and will not hold its position if air pressure is exhausted or lost. For load-holding safety, you must use an external mechanical lock, a rod brake, or a pilot-operated check valve in the pneumatic circuit.
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