Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X450
The AirTAC Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X450 is a genuine double-acting standard air cylinder with a Ø250mm bore and 450mm stroke, PT1" air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ250 mm
- Stroke450 mm
- Port sizePT1"
- Acting typeDouble acting
- Rod threadM42×2
- CushionAdjustable, 40 mm
About the Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X450
The AirTAC SC250X450 is a large-bore double-acting tie-rod cylinder delivering substantial push force for heavy industrial applications. At 0.5 MPa air pressure it generates 24544 N of thrust, rising to 44178 N at the maximum operating pressure of 0.9 MPa, driven by a robust 50 mm diameter piston rod.
With a 450 mm stroke, this model is well within the 1500 mm maximum standard stroke for the 250 mm bore. The cylinder body length is 294 mm, giving a total extended length of approximately 744 mm. It features a 40 mm adjustable air cushion at each end to decelerate high-inertia loads smoothly and a PT1" port for air supply.
Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X450 Technical Specifications
| Model | Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X450 |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø250 mm |
| Stroke | 450 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 SC250X450
| SC | Standard tie-rod cylinder series. |
|---|---|
| 250 | Bore size in mm. |
| ×450 | 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 SC250X450 Is Used
Heavy Press Tool Actuation
Provides the high force (up to 44178 N) needed to operate large clamping fixtures and forming dies in heavy manufacturing presses, with a 450 mm stroke for deep tool access.
Bulk Material Gate Control
Powers large slide gates or diverter chutes in mining and aggregate handling, using its 24544 N push force at standard plant pressure to shift heavy material columns reliably.
Structural Testing Rigs
Applies controlled, repeatable loads in large-scale tensile or compression testing frames, where the 450 mm stroke accommodates significant specimen deformation or fixture adjustment.
Is the Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X450 the Right Cylinder?
For applications needing slightly less force, stepping down to the 200 mm bore provides 15708 N at 0.5 MPa. This SC250X450 is an ISO 6430 class cylinder, designed for heavy-duty use. When replacing an existing unit, ensure an exact match on all five key points: 250 mm bore, 450 mm stroke, PT1" port thread, basic (no) mounting, and no magnet.
At this long stroke, the 50 mm rod is susceptible to bending under side loads. For any application where the load is not guided and perfectly axial, use an external guide rail or rod support to prevent bearing damage and seal failure. The cylinder's adjustable cushion must be tuned to the specific load inertia to avoid end-of-stroke impact.
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 SC250X450 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 SC250X450 is a standard double-acting cylinder and will drift or drop if air pressure is lost or the directional valve is centered. To hold a load or maintain a position without live pressure, you must add an external mechanical lock, a rod brake, or a pilot-operated check valve in the circuit.
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