Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC200X400H
The AirTAC Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC200X400H is a genuine double-acting standard air cylinder with a Ø200mm bore and 400mm stroke, PT3/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ200 mm
- Stroke400 mm
- Port sizePT3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 33 mm
About the Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC200X400H
The SC200X400H is a large-bore double-acting pneumatic cylinder delivering a substantial push force of 15708 N at 0.5 MPa (28274 N at the 0.9 MPa maximum operating pressure). With a 400 mm stroke and a 40 mm diameter piston rod, it is built for heavy industrial linear actuation tasks that demand high force over a moderate travel distance.
This model is equipped with high-temperature Viton (FKM) seals, extending the operating temperature range from the standard -20°C up to +150°C, making it suitable for autoclaves, foundries, and other hot-environment applications. The tie-rod construction with a 244 mm body length and adjustable pneumatic cushioning ensures reliable deceleration of high-inertia loads.
Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC200X400H Technical Specifications
| Model | Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC200X400H |
|---|---|
| Series | SC big-bore tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø200 mm |
| Stroke | 400 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 SC200X400H
| SC | Standard tie-rod cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×400 | 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 SC200X400H Is Used
High-Temperature Press Actuation
Viton seals allow the SC200X400H to operate reliably in hot presses, autoclave door mechanisms, and curing ovens where ambient temperatures reach up to 150°C, providing consistent 28 kN clamping force.
Heavy Conveyor Diverting
Deploys a high-force gate or diverter arm on mining or aggregate conveyors. The 400 mm stroke provides ample travel to fully extend a heavy steel blade across a wide material stream.
Large Die-Casting Ejection
Provides the powerful push needed to eject large cast parts from molds. The adjustable air cushion decelerates the heavy ejection plate smoothly, protecting the mold and reducing cycle shock.
Is the Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC200X400H the Right Cylinder?
Select the SC200X400H when your application requires a force output in the 15,000-28,000 N range. For a step down in force, the SC160 bore provides 10053 N at 0.5 MPa in a more compact envelope. For higher force requirements, the SC250 bore delivers 24544 N at the same pressure.
For this 400 mm stroke, ensure the load is guided and side forces are eliminated; a 40 mm rod can be subject to bending moments if the load is not supported externally. When replacing an existing cylinder, match five critical points: 200 mm bore, 400 mm stroke, PT port thread, basic mounting (no accessories), and the absence of a built-in magnet. The Viton seal variant is essential for high-temperature compatibility.
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 SC200X400H FAQ
At the standard 0.5 MPa operating pressure, 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 SC200X400H is a double-acting cylinder and will not hold its position if air pressure is lost or the directional valve is centered. The piston will drift or drop under load. For load holding, you must add an external rod brake, a mechanical lock, or a pilot-operated check valve in the circuit.
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