Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X65
The AirTAC Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X65 is a genuine double-acting standard air cylinder with a Ø250mm bore and 65mm stroke, PT1" air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ250 mm
- Stroke65 mm
- Port sizePT1"
- Acting typeDouble acting
- Rod threadM42×2
- CushionAdjustable, 40 mm
About the Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X65
The SC250X65 is a large-bore double-acting tie-rod cylinder delivering 24544 N of push force at 0.5 MPa and up to 44178 N at the 0.9 MPa maximum operating pressure. With a 65 mm stroke and a 50 mm diameter piston rod, it provides a compact yet powerful linear stroke for heavy industrial actuation.
This model features a body length A of 294 mm, giving a total extended length of approximately 359 mm. The adjustable pneumatic cushion (40 mm length) decelerates the piston smoothly at end-of-stroke, protecting the end caps during high-speed, high-load cycles. Ports are PT1".
Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X65 Technical Specifications
| Model | Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X65 |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø250 mm |
| Stroke | 65 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.
Theoretical Output Force (Ø250mm)
| 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.
Model Code: Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X65
| SC | Standard tie-rod cylinder series. |
|---|---|
| 250 | Bore size in mm. |
| ×65 | 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.
Where the Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X65 Is Used
Heavy Press Tool Actuation
Powers large forming or stamping press tools requiring a compact 65 mm stroke with a consistent 24544 N push force at standard 0.5 MPa line pressure.
Material Handling Pushers
Drives heavy-duty pusher arms in steel mills or foundries, where the 50 mm rod resists bending and the 40 mm cushion absorbs impact from shifting dense loads.
Dam Gate & Valve Control
Operates large sluice gates or industrial valves with a short, powerful stroke, leveraging the SC250's high theoretical force of 5006 kgf for reliable positioning.
Is the Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X65 the Right Cylinder?
Choose the SC250 bore when your application requires over 23500 N of force at standard plant air pressure. If your load is lighter, stepping down to the SC200 bore reduces push force to 15708 N at 0.5 MPa while using a smaller footprint. For replacement, match five points exactly: 250 mm bore, 65 mm stroke, PT1" port thread, basic mounting (no bracket), and confirm the magnet option (this model has no built-in magnet).
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X65 FAQ
At 0.5 MPa, 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 reaches 44178 N. The theoretical maximum force at 1.0 MPa is 5006 kgf.
No. The SC series is a double-acting cylinder and does not hold position when air pressure is exhausted or the directional valve is centered. The adjustable air cushion only decelerates the piston at stroke end; it is not a locking or holding brake. For load holding without live pressure, you must add an external rod lock or a pilot-operated check valve.
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