Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC200X425
The AirTAC Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC200X425 is a genuine double-acting standard air cylinder with a Ø200mm bore and 425mm stroke, PT3/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ200 mm
- Stroke425 mm
- Port sizePT3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 33 mm
About the Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC200X425
The AirTAC SC200X425 is a double-acting tie-rod cylinder engineered for heavy-duty linear force applications. With a 200 mm bore and a 425 mm stroke, it generates a substantial 15708 N of push force at 0.5 MPa and up to 28274 N at the maximum operating pressure of 0.9 MPa, making it suitable for pressing, clamping, and lifting large assemblies.
This model features a robust 40 mm diameter piston rod with an M36x2 knuckle thread and PT3/4 port connections. The total extended body length is approximately 669 mm, based on a 244 mm body length A plus the 425 mm stroke. An adjustable pneumatic cushion decelerates the piston at both ends, with a 33 mm cushion length, to protect the end caps during high-speed operation.
Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC200X425 Technical Specifications
| Model | Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC200X425 |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø200 mm |
| Stroke | 425 mm |
| Acting type | Double acting |
| Port size | PT3/4 |
| Rod thread | M36×2 |
| 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, 33 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 (Ø200mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 15708 N | 15080 N |
| 0.7 MPa | 21991 N | — |
| Max (approx.) | 3204 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 SC200X425
| SC | Standard tie-rod cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×425 | 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 SC200X425 Is Used
Heavy Pallet Lifting
Provides the high thrust needed to elevate heavy pallets in material handling lifts and scissor-lift tables, where a 200 mm bore ensures stable lifting capacity.
Industrial Press Frames
Ideal for small to medium hydraulic-press replacements in pneumatic pressing, riveting, or forming jigs, delivering up to 28274 N of force at 0.9 MPa.
Large Gate Valve Actuation
Used to automate large-diameter gate or knife valves in bulk material handling, where the 425 mm stroke provides the necessary travel for full port opening.
Is the Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC200X425 the Right Cylinder?
Select the SC200X425 when your application demands a force class above 15000 N at standard plant pressure. For a smaller footprint with lower force, the SC160 bore delivers 10053 N at 0.5 MPa. For maximum force in the SC family, the SC250 bore provides 24544 N at the same pressure. Always match the bore, 425 mm stroke, PT3/4 port thread, and basic mounting configuration when replacing an existing cylinder.
At this 425 mm stroke, the long unsupported piston rod is susceptible to bending under side loads. It is critical to ensure the load is guided externally on linear rails or rods, preventing any radial force from reaching the cylinder's rod bearing, which will dramatically extend seal life and prevent rod scoring.
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 SC200X425 FAQ
At 0.5 MPa, the push force is 15708 N and the pull force is 15080 N. At the maximum operating pressure of 0.9 MPa, the push force increases to 28274 N. The theoretical maximum force at 1.0 MPa is 3204 kgf.
No. The SC200X425 is a standard double-acting cylinder and will not hold its position if air pressure is exhausted or lost. For load-holding safety, you must add an external rod lock, a mechanical brake, or a pilot-operated check valve in the circuit.
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