Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X70
The AirTAC Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X70 is a genuine double-acting standard air cylinder with a Ø250mm bore and 70mm stroke, PT1" air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ250 mm
- Stroke70 mm
- Port sizePT1"
- Acting typeDouble acting
- Rod threadM42×2
- CushionAdjustable, 40 mm
About the Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X70
The AirTAC SC250X70 is a heavy-duty double-acting tie-rod cylinder delivering a 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 70 mm stroke and a robust 50 mm diameter piston rod, this ISO 6430 class cylinder is built for high-force, short-cycle applications where a compact extended length is needed.
This model features a 294 mm body length, resulting in a total extended length of approximately 364 mm. It includes PT1" ports, an M42x2 rod thread, and a generous 40 mm adjustable air cushion at both ends to decelerate high inertial loads smoothly. The standard TPU seals provide a reliable operating temperature range of -20 to +70 °C.
Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X70 Technical Specifications
| Model | Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X70 |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø250 mm |
| Stroke | 70 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 SC250X70
| SC | Standard tie-rod cylinder series. |
|---|---|
| 250 | Bore size in mm. |
| ×70 | 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 SC250X70 Is Used
Heavy Press Tool Actuation
Provides the high clamping and pressing forces required for stamping, riveting, and forming tools in metal fabrication, utilizing the 24544 N push at standard line pressure.
Logistics & Pallet Handling
Powers robust pallet stops, lifts, and transfers in automated warehouses, where the 50 mm rod withstands significant impact and guiding loads during heavy pallet movement.
Industrial Compaction & Baling
Drives compaction rams in waste management and recycling balers, reliably delivering the high force needed to compress materials into dense, manageable bales.
Is the Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X70 the Right Cylinder?
Select the SC250 bore when your application requires a push force exceeding 18095 N at 0.9 MPa, which is the upper limit of the next smaller SC160 bore (18095 N at 0.9 MPa). For this 70 mm stroke, the short extension minimizes rod bending risk, but the large 50 mm rod diameter inherently provides high rigidity against side loads compared to smaller bores. To ensure a correct replacement, match five key points: 250 mm bore, 70 mm stroke, PT1" port thread, your specific mounting accessory, and the presence or absence of a magnet.
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 SC250X70 FAQ
At the standard 0.5 MPa operating pressure, the push force is 24544 N and the pull force is 23562 N. At 0.7 MPa, the push force increases to 34361 N. The maximum theoretical force at 1.0 MPa is 5006 kgf, but the recommended maximum operating pressure is 0.9 MPa, yielding a push force of 44178 N.
No. The SC250 is an ISO 6430 class tie-rod cylinder, not an ISO 15552 profile cylinder. Its dimensions are shorter than an ISO 15552 cylinder, so it is not a drop-in replacement. It is a direct match only for another AirTAC SC250 tie-rod cylinder with the same bore, stroke, port thread, and mounting configuration.
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