Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC200X425S
The AirTAC Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC200X425S 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 SC200X425S
The SC200X425S is a double-acting tie-rod cylinder with a 200 mm bore and 425 mm stroke, equipped with a built-in magnet for barrel-mounted sensors. At 0.5 MPa air pressure it generates 15708 N of push force, placing it in the heavy-duty industrial class for pressing, clamping, and lifting large assemblies.
This model uses a 40 mm diameter piston rod with M36x2 male knuckle threads and PT3/4 port connections. The 425 mm stroke is well within the 1500 mm maximum standard stroke for bore 200, and the adjustable air cushion (33 mm length) decelerates the high-inertia piston smoothly at end-of-travel. Body length A is 244 mm, giving an extended length of approximately 669 mm.
Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC200X425S Technical Specifications
| Model | Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC200X425S |
|---|---|
| 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 SC200X425S
| 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 SC200X425S Is Used
Heavy Press-Fit Assembly
The 15708 N push force at 0.5 MPa (up to 28274 N at 0.9 MPa) is ideal for pressing bearings, bushings, or pins into large housings on an assembly line.
Pallet Stop & Lift Gate
Controls the flow of heavy pallets on a conveyor. The built-in magnet allows end-of-stroke sensing to confirm the gate is fully raised or lowered before releasing the next load.
Large Valve Actuation
Provides the high thrust needed to cycle large-diameter ball or butterfly valves in water treatment or petrochemical piping, with sensor feedback for open/closed position verification.
Is the Airtac SC200-250 Tie-Rod Cylinder Aluminum Alloy SC200X425S the Right Cylinder?
Choose the SC200 when an SC160 (push force 10053 N at 0.5 MPa) is undersized for the mass being moved. For strokes over 300 mm on this large bore, lateral loads must be managed carefully—the 40 mm rod can bend under side force if the load is not externally guided. Add an external guide rail or a guided cylinder configuration to protect the rod bearing and piston seals.
To replace an existing cylinder, match five points: 200 mm bore, 425 mm stroke, PT3/4 port thread, basic mounting (no bracket), and the -S magnet option for CMSG/DMSG/EMSG sensors. This is a tie-rod design and is not dimensionally interchangeable with ISO 15552 profile cylinders.
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 SC200X425S 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, push force reaches 28274 N. The theoretical maximum at 1.0 MPa is 3204 kgf.
No. The SC200X425S is a double-acting cylinder and will drift or drop if air pressure is exhausted or the directional valve is centered. To hold a load safely without live pressure, you must add a pilot-operated check valve, a mechanical rod lock, or an external brake.
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