Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X25S
The AirTAC Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X25S is a genuine double-acting standard air cylinder with a Ø250mm bore and 25mm stroke, PT1" air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ250 mm
- Stroke25 mm
- Port sizePT1"
- Acting typeDouble acting
- Rod threadM42×2
- CushionAdjustable, 40 mm
About the Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X25S
The AirTAC SC250X25S is a double-acting tie-rod cylinder with a 250 mm bore and a short 25 mm stroke, ideal for clamping, pressing, and high-force positioning tasks where the working travel is minimal. Its 50 mm diameter piston rod and PT1" ports support rapid cycling, while the built-in magnet (suffix -S) allows direct mounting of CMSG/DMSG/EMSG reed or solid-state sensors for end-of-stroke detection.
At 0.5 MPa air pressure this cylinder generates 24,544 N of push force and 23,562 N on the pull stroke, rising to 44,178 N at the maximum operating pressure of 0.9 MPa. The 40 mm adjustable air cushion at each end decelerates the piston smoothly, protecting the end caps during high-speed operation. The body length A is 294 mm, giving a compact extended length of approximately 319 mm for this 25 mm stroke model.
Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X25S Technical Specifications
| Model | Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X25S |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø250 mm |
| Stroke | 25 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 SC250X25S
| SC | Standard tie-rod cylinder series. |
|---|---|
| 250 | Bore size in mm. |
| ×25 | 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 SC250X25S Is Used
Heavy-Duty Clamping
Short 25 mm stroke and 24.5 kN push force at 0.5 MPa make this cylinder perfect for pneumatic clamping fixtures in welding cells or machining centres, where the built-in magnet confirms jaw closure.
Press-Fit Assembly
Delivers a controlled 44 kN press force at 0.9 MPa for inserting bearings, bushings, or pins. The adjustable cushion prevents impact damage during high-cycle press operations.
Part Stops & Gates
Used as a heavy-duty part stop on conveyor lines for pallets or large castings. The -S magnet signals the raised/lowered position to the line controller for interlocked material flow.
Is the Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X25S the Right Cylinder?
Choose the SC250 for applications demanding 24.5 kN of push force at 0.5 MPa. If your load requires less force, stepping down to the SC200 bore (15,708 N push at 0.5 MPa) reduces air consumption and physical size. For even higher forces, confirm the next bore class from the datasheet. When replacing an existing cylinder, match five points: 250 mm bore, 25 mm stroke, PT1" port thread, the built-in magnet (-S), and the basic (no bracket) mounting configuration. For strokes of 300 mm or longer on this bore, always consider an external guide rail or a guided cylinder to protect the 50 mm rod from bending under side load.
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 SC250X25S FAQ
At 0.7 MPa (7 bar) supply pressure, the SC250 bore generates 34,361 N of push force and approximately 32,987 N of pull force (calculated from the 23,562 N pull force at 0.5 MPa). The maximum operating pressure is 1.0 MPa, delivering a theoretical push force of 50,060 N (5,006 kgf).
Yes. The -S suffix in the model code indicates a built-in magnet on the piston. This allows AirTAC CMSG (reed) or DMSG/EMSG (solid-state) sensors to be clamped directly onto the tie-rod barrel for non-contact end-of-stroke or mid-stroke position sensing.
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