Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X15
The AirTAC Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X15 is a genuine double-acting standard air cylinder with a Ø250mm bore and 15mm stroke, PT1" air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ250 mm
- Stroke15 mm
- Port sizePT1"
- Acting typeDouble acting
- Rod threadM42×2
- CushionAdjustable, 40 mm
About the Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X15
The AirTAC SC250X15 is a double-acting tie-rod cylinder delivering a substantial 24544 N of push force at 0.5 MPa, rising to 44178 N at the maximum operating pressure of 0.9 MPa. With a 250 mm bore and a short 15 mm stroke, this model is built for applications requiring immense force over a minimal linear distance, such as heavy-duty clamping or pressing. The piston rod is a robust 50 mm diameter with an M42x2 knuckle thread, and the body length A is 294 mm, providing a compact yet powerful package.
This cylinder features a 40 mm adjustable air cushion to decelerate the large mass at the end of stroke, reducing impact and noise. The standard PT1 inch port supplies the necessary air flow for high-speed operation within the 30-500 mm/s speed range for this ISO 6430 class bore. The default TPU seal ensures reliable performance in standard temperatures from -20 to +70 °C.
Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X15 Technical Specifications
| Model | Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X15 |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø250 mm |
| Stroke | 15 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 SC250X15
| SC | Standard tie-rod cylinder series. |
|---|---|
| 250 | Bore size in mm. |
| ×15 | 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 SC250X15 Is Used
Heavy-Duty Clamping
The 24544 N force at 0.5 MPa makes the SC250X15 ideal for securely clamping large workpieces in CNC machining centers or welding fixtures, ensuring zero movement during high-force operations.
Short-Stroke Press Tool
Use this 15 mm stroke cylinder as a powerful actuator in a small press tool for staking, riveting, or bearing insertion, where a high force is needed in a very compact linear motion.
Bulk Material Gate Stop
Deploy the SC250X15 as a robust gate stop in heavy material handling chutes. Its high force and short stroke reliably lock a diverter gate in place against the weight of aggregate or scrap metal.
Is the Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X15 the Right Cylinder?
For applications needing even higher force, the next step up would be a custom solution as this is the largest standard SC bore. If a longer stroke is required, the SC250 can be ordered with strokes up to 1500 mm. When replacing an existing cylinder, ensure a 5-point match: 250 mm bore, 15 mm stroke, PT1 inch port thread, basic mounting (no accessory), and the absence of a built-in magnet. For any stroke, ensure the rod is guided if significant side loads are present to prevent bending of the 50 mm rod.
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 SC250X15 FAQ
At 0.7 MPa (7 bar) operating pressure, the SC250X15 double-acting cylinder produces a theoretical push force of 34361 N. The pull force on the retract stroke is 23562 N at the same 0.5 MPa pressure, due to the area taken up by the 50 mm piston rod.
No. The SC250X15 is a standard double-acting cylinder and will not hold its position if air pressure is exhausted or lost. The piston can drift or drop under load. For load-holding safety, you must add an external rod brake, a mechanical lock, or a pilot-operated check valve to the circuit.
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