Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X125
The AirTAC Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X125 is a genuine double-acting standard air cylinder with a Ø250mm bore and 125mm stroke, PT1" air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ250 mm
- Stroke125 mm
- Port sizePT1"
- Acting typeDouble acting
- Rod threadM42×2
- CushionAdjustable, 40 mm
About the Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X125
The AirTAC SC250X125 is a heavy-duty double-acting tie-rod cylinder delivering a substantial 24544 N of push force at 0.5 MPa (44178 N at the maximum operating pressure of 0.9 MPa). With a 250 mm bore and a 125 mm stroke, this model is built for applications requiring extreme force in a compact stroke length, featuring a robust 50 mm diameter piston rod with an M42x2 knuckle thread.
This genuine AirTAC actuator includes a 40 mm adjustable air cushion to decelerate high-inertia loads smoothly, protecting the end caps. The total extended body length is 419 mm, and it operates on filtered air within a standard temperature range of -20 to +70 °C, with PT1" ports for main air connections.
Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X125 Technical Specifications
| Model | Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X125 |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø250 mm |
| Stroke | 125 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 SC250X125
| SC | Standard tie-rod cylinder series. |
|---|---|
| 250 | Bore size in mm. |
| ×125 | 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 SC250X125 Is Used
Heavy Press-Fit Assembly
The 44178 N maximum thrust at 0.9 MPa provides the power needed to press bearings, bushings, or pins into heavy machinery components with a short, controlled 125 mm stroke.
Industrial Clamping & Fixturing
Generates a secure 24544 N clamping force at 0.5 MPa for holding large weldments or castings in place during machining, ensuring zero part movement.
Material Lift & Transfer
With a 50 mm rod resisting bending, this cylinder can push or lift heavy pallets and structural materials on a short-stroke transfer station, handling up to 5006 kgf of theoretical force.
Is the Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X125 the Right Cylinder?
Select the SC250X125 when your application demands force in the 24544 N class at standard plant pressure. If your load requires less force, stepping down to the SC200 bore reduces push force to 15708 N at 0.5 MPa. For a longer stroke within the same 250 mm bore, the standard range extends up to 1500 mm.
To guarantee a correct replacement, match five key points: the 250 mm bore, 125 mm stroke, PT1" port thread, basic (no bracket) mounting, and the absence of a built-in magnet. The SC is a tie-rod cylinder and is not dimensionally interchangeable with ISO 15552 profile cylinders; it must replace another AirTAC SC tie-rod unit of the same specifications.
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 SC250X125 FAQ
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 or a suspended load if air pressure is exhausted or lost. The adjustable air cushion only decelerates the piston at the end of its stroke. For load holding, you must add an external rod brake, a mechanical lock, or a pilot-operated check valve in the circuit.
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