Airtac SAI200 Standard Cylinder SAI200AX425
The AirTAC Airtac SAI200 Standard Cylinder SAI200AX425 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 425mm stroke, G3/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ200 mm
- Stroke425 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAI200 Standard Cylinder SAI200AX425
The AirTAC SAI200X425 is a double-acting ISO 15552 profile cylinder engineered for heavy-duty industrial tasks. Operating at 0.5 MPa, it delivers a substantial push force of 15708 N and a pull force of 15080 N. The 425 mm stroke provides ample travel for moving massive loads, while the adjustable air cushions at both ends absorb end-of-stroke impacts. This unit is configured with SUS420J2 stainless steel for the piston rod (material code A), offering superior corrosion resistance compared to standard carbon steel.
Because this is a profile barrel design rather than a tie-rod cylinder, the extruded aluminum housing integrates sensor grooves on both sides. Although this specific configuration omits the -S magnet option, the grooves remain ready for future sensor upgrades if required. The pneumatic connections utilize PT tapered threads, ensuring a robust, mechanically sealed interface when properly installed with thread sealant.
Airtac SAI200 Standard Cylinder SAI200AX425 Technical Specifications
| Model | Airtac SAI200 Standard Cylinder SAI200AX425 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 425 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| 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, 50 mm |
| Max stroke | Up to 1500 mm |
Specifications follow the official AirTAC SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / NPT.
Theoretical Output Force (Ø200mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 15708 N | 15080 N |
| 0.7 MPa | 21991 N | — |
| Max (@1.0 MPa) | 3204 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAI200 Standard Cylinder SAI200AX425
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×425 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
Where the Airtac SAI200 Standard Cylinder SAI200AX425 Is Used
Heavy Metal Forming
Provides the 15708 N push force at 0.5 MPa required for stamping, bending, and forming thick metal sheets in automated fabrication lines.
Large Mold Handling
Utilizes the 425 mm stroke to push heavy injection molds or industrial dies into positioning cradles securely.
Bulk Palletizing
Drives large-scale palletizing arms that lift and position heavy bulk containers in high-throughput logistics hubs.
Is the Airtac SAI200 Standard Cylinder SAI200AX425 the Right Cylinder?
Selecting this 200 mm bore cylinder is appropriate when application forces exceed the 10053 N push capacity of the 160 mm bore size at 0.5 MPa. If the 425 mm stroke is longer than necessary, stepping down to a standard 400 mm or 450 mm variant can simplify procurement. To match existing tooling, ensure your replacement parameters include a 200 mm bore, 425 mm stroke, G3/4 port, and compatible mounting accessories like the LB foot or TC trunnion.
Because the stroke is 425 mm, the unsupported rod length is significant. Side loads will cause severe bending stress on the rod bearing and can lead to premature seal failure. To prevent this, guide the load externally using linear rails or select a guided cylinder module. Note that this cylinder cannot hold a load if air pressure drops; use a SAIL air-released lock variant or an external pilot-operated check valve for fail-safe position holding.
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 SAI200 Standard Cylinder SAI200AX425 FAQ
At 0.5 MPa, the SAI200X425 cylinder provides a push force of 15708 N and a pull force of 15080 N. At the maximum operating pressure of 1.0 MPa, the theoretical push force reaches 3204 kgf.
Yes, the SAI200X425 is dimensionally interchangeable per ISO 15552. You can drop it in as a replacement for other ISO 15552 profile cylinders of the same bore and stroke, provided your mounting interface and G3/4 port match.
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