Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X680
The AirTAC Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X680 is a genuine double-acting standard air cylinder with a Ø250mm bore and 680mm stroke, PT1" air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ250 mm
- Stroke680 mm
- Port sizePT1"
- Acting typeDouble acting
- Rod threadM42×2
- CushionAdjustable, 40 mm
About the Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X680
The SC250X680 is a large-bore double-acting tie-rod cylinder delivering 24544 N of push force at 0.5 MPa (44178 N at the maximum 0.9 MPa operating pressure). With a 250 mm bore and 680 mm stroke, this model is built for heavy industrial linear actuation where substantial force and moderate travel are required.
This cylinder features a robust 50 mm diameter piston rod with M42x2 male threads and a 40 mm adjustable air cushion at each end to decelerate high inertial loads. The body length A is 294 mm, giving a total extended length of approximately 974 mm. The PT1" port supplies ample flow for the 250 mm bore, and the tie-rod construction allows straightforward maintenance.
Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X680 Technical Specifications
| Model | Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X680 |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø250 mm |
| Stroke | 680 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 SC250X680
| SC | Standard tie-rod cylinder series. |
|---|---|
| 250 | Bore size in mm. |
| ×680 | 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 SC250X680 Is Used
Heavy Press & Forming
Generates up to 44178 N at 0.9 MPa for pressing, stamping, and forming operations where a 680 mm stroke provides deep draw or material feed capability.
Bulk Material Handling
Actuates large gates, diverters, or chutes in mining and aggregate processing, using the 50 mm rod to withstand harsh, dusty environments.
Structural Testing Rigs
Applies controlled, high-force linear motion for load testing beams, columns, and large assemblies, leveraging the adjustable cushion to protect the test article and rig.
Is the Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC250X680 the Right Cylinder?
This 250 mm bore cylinder is the largest in the standard SC range, providing 24544 N push at 0.5 MPa. If your application requires even higher force, consider moving to a larger custom solution, as this is the maximum standard bore. For a lighter, more compact option, the SC200X680 delivers 15708 N at 0.5 MPa with a 40 mm rod.
For this 680 mm stroke, ensure the load is guided and side forces are managed externally; the 50 mm rod, while substantial, can still experience bending moments under off-center loads at full extension. When replacing an existing unit, match five points: 250 mm bore, 680 mm stroke, PT1" port thread, basic (no mounting accessory), and confirm the magnet option (this model has no built-in 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 SC250X680 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 tie-rod cylinder with a shorter overall body length than a comparable ISO 15552 profile cylinder, so dimensional interchangeability is not guaranteed. It is a direct replacement only for another AirTAC SC250 tie-rod cylinder with matching bore, stroke, PT1" port, and basic mounting.
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