This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200AX95, 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.

The AirTAC Airtac SI200 Standard Cylinder SI200AX95 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 95mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200AX95, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI200AX95 is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 95mm stroke. It delivers 15708N push force at 0.5MPa via a G3/4 port. The direct replacement is the SAI200AX95, matching the interface, force and mounting.
This SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. The SI200AX95 uses an SUS420J2 stainless rod (-A) and lacks a magnet, so it cannot take a sensor.
| Model | Airtac SI200 Standard Cylinder SI200AX95 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200AX95 |
| Bore size | Ø200 mm |
| Stroke | 95 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 SAI200AX95 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 15708 N | 15080 N |
| 0.7 MPa | 21991 N | — |
| Max (@1.0 MPa) | 3204 kgf | |
The SAI200AX95 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×95 | 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).
Drives large stamping and forming presses requiring 15708N push force at 0.5MPa with stable 200mm bore guidance.
Clamps large structural components in automated welding and assembly fixtures using the SUS420J2 stainless rod.
To replace the SI200AX95, order the SAI200AX95. Verify the ISO 15552 mounting interface, 200mm bore, 95mm stroke, G3/4 port (PT/G/NPT) and mounting accessory. This SKU lacks a magnet (-S), so no CS1-B/DS1-B sensor can be fitted. Sizing both ways: a 160mm bore yields 10053N push at 0.5MPa, while a 200mm bore gives 21991N at 0.7MPa. For load holding on air loss, the cushion only decelerates; use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants. The SAI family also adds the SAIF valve variant.
Replacement checklist
Yes, the SI200AX95 is discontinued. The direct replacement is the SAI200AX95. It offers the same ISO 15552 mounting interface, 200mm bore, 95mm stroke, output force, G3/4 port and accessories, fitting existing fixtures perfectly.
The bore is 200mm with a G3/4 port. Force output is 15708N push and 15080N pull at 0.5MPa, 21991N push at 0.7MPa, and a theoretical max of 3204kgf at 1.0MPa. Speed is 30-500mm/s.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200AX95 replacement — usually within 7-8 hours.