This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200AX165S, with the same bore, stroke, output force, port and mounting, so it fits the same application. The SAI replacement keeps the same ISO 15552 mounting interface, bore, stroke, output force and accessories, so it drops straight into existing fixtures. It is the current-production version of this cylinder with an upgraded piston seal.
Airtac SI200 Standard Cylinder SI200AX165S
The AirTAC SI200 Standard Cylinder SI200AX165S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 165mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200AX165S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke165 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200AX165S
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SI200 Standard Cylinder SI200AX165S
The AirTAC SI200AX165S is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 165mm stroke. Delivering 15708 N push force at 0.5 MPa, it features a SUS420J2 stainless piston rod, a G3/4 air port, and a piston magnet for CS1-B/DS1-B switches. AirTAC replaced this end-of-line unit with the SAI200AX165S.
The SAI200AX165S is a direct upgrade retaining the exact ISO 15552 mounting interface, bore, stroke, and force. It features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. The SAI family also adds SAIL, SAIF, and BSAI lock variants the SI lacked.
Airtac SI200 Standard Cylinder SI200AX165S Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200AX165S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200AX165S |
| Bore size | Ø200 mm |
| Stroke | 165 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2.0 |
| 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 standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAI200AX165S carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / 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 | |
The SAI200AX165S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI200 Standard Cylinder SI200AX165S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×165 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SI-family variants: SID (double rod), SIJ (adjustable stroke) — each maps to its SAI equivalent (SID→SAID, SIJ→SAIJ). Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B).
Where the Airtac SI200 Standard Cylinder SI200AX165S Is Used
Heavy Stamp Pressing
Drives large pressing and stamping fixtures requiring up to 21991 N of thrust at 0.7 MPa, utilizing the robust 40mm piston rod.
Industrial Clamp Actuation
Secures heavy fabricated steel components during welding or machining, providing 15080 N of pull force at 0.5 MPa.
Replacing the Airtac SI200 Standard Cylinder SI200AX165S with the SAI200AX165S
To replace the SI200AX165S, order the SAI200AX165S. Verify your ISO 15552 mounting interface, 165mm stroke, G3/4 port, and the -A SUS420J2 rod material. Because of the -S magnet, you can use legacy CS1-B/DS1-B sensors, though the SAI replacement family uses current AirTAC switches. Sizing both ways: this 200mm bore yields 15708 N push at 0.5 MPa; dropping to a 160mm bore gives 10053 N. A plain cylinder drifts on air loss—the cushion only decelerates—so use an external rod lock or pilot check valve for load holding, or specify an SAIL or BSAI lock variant. For this 165mm stroke, ensure guide alignment to prevent rod bending under side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200AX165S
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI200 Standard Cylinder SI200AX165S FAQ
Yes, the AirTAC SI200AX165S is discontinued. The direct replacement is the SAI200AX165S. It shares the identical ISO 15552 mounting interface, 200mm bore, 165mm stroke, G3/4 port, and force ratings, fitting your existing fixtures perfectly.
The 200mm bore provides 15708 N push and 15080 N pull at 0.5 MPa, 21991 N push at 0.7 MPa, 28274 N push at 0.9 MPa, and a theoretical max of 3204 kgf at 1.0 MPa. Operating speed is 30-500 mm/s, with a 50mm adjustable air cushion at both ends.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200AX165S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200AX165S replacement — usually within 7-8 hours.