Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X75
The AirTAC Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X75 is a genuine double-acting standard air cylinder with a Ø250mm bore and 75mm stroke, PT1" air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ250 mm
- Stroke75 mm
- Port sizePT1"
- Acting typeDouble acting
- Rod threadM42×2
- CushionAdjustable, 40 mm
About the Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X75
The SC250X75 is a large-bore double-acting pneumatic cylinder delivering substantial push force of 24544 N at 0.5 MPa and up to 44178 N at the maximum operating pressure of 0.9 MPa. With a 75 mm stroke, it is suited for short, high-force clamping, pressing, or lifting actions where a compact extended length is required.
This ISO 6430 class tie-rod cylinder features a robust 50 mm diameter piston rod with M42x2 threads and a 40 mm adjustable air cushion at each end to decelerate heavy loads. The body length A is 294 mm, resulting in a total extended length of approximately 369 mm. Ports are PT1".
Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X75 Technical Specifications
| Model | Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X75 |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø250 mm |
| Stroke | 75 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 SC250X75
| SC | Standard tie-rod cylinder series. |
|---|---|
| 250 | Bore size in mm. |
| ×75 | 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 SC250X75 Is Used
Heavy-Duty Pressing
Generates over 24 kN of force at standard line pressure for short-stroke pressing, forming, and crimping operations in metal fabrication.
Material Lifting
Provides the high thrust needed to vertically lift heavy dies, molds, or structural components a short distance in automated warehouses.
Industrial Clamping
Ideal for powerful, fixed-position clamping of large workpieces on CNC machining centers or welding fixtures, ensuring zero shift during processing.
Is the Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X75 the Right Cylinder?
For applications requiring slightly less force, consider stepping down to a 200 mm bore, which provides 15708 N push at 0.5 MPa. If a longer stroke is needed within the same force class, the SC250 supports standard strokes up to 1500 mm. When replacing an existing cylinder, ensure a match across five points: 250 mm bore, 75 mm stroke, PT1" port thread, basic mounting (no accessories), and the absence of a built-in magnet. This model uses standard TPU seals for an operating temperature range of -20 to +70 °C.
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 SC250X75 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 SC250X75 is a double-acting cylinder and will not hold its position if air pressure is exhausted or lost. The piston can drift or the load may drop. For load holding without live pressure, you must add a pilot-operated check valve or an external mechanical rod brake.
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