This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100AX195, 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 SI100 Standard Cylinder SI100AX195 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 195mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100AX195, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI100AX195 is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 195mm stroke. It delivers 3927 N push and 3681 N pull at 0.5 MPa, utilizing a G1/2 port and M20x1.5 rod thread. AirTAC replaced this legacy unit with the SAI100AX195 direct replacement, featuring the exact same ISO 15552 mounting interface, output force, and port size to fit existing fixtures seamlessly.
The SAI100AX195 upgrade introduces an improved piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. This specific SKU uses an SUS420J2 stainless steel rod (the -A option) for corrosion resistance, but lacks a magnet so it cannot accept position sensors.
| Model | Airtac SI100 Standard Cylinder SI100AX195 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100AX195 |
| Bore size | Ø100 mm |
| Stroke | 195 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M20×1.5 |
| 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 – 800 mm/s |
| Cushion | Adjustable, 36 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAI100AX195 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 | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
The SAI100AX195 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). |
|---|---|
| 100 | Bore size in mm. |
| ×195 | 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 robust pressing and stamping operations requiring up to 3927 N of thrust at 0.5 MPa, with adjustable 36mm cushions absorbing end-of-stroke impact.
Raises and lowers substantial lifting gates or scissor tables, relying on the SUS420J2 stainless rod for moisture resistance in damp facilities.
To replace the discontinued SI100AX195, order the SAI100AX195 by confirming the ISO 15552 mounting interface, 100mm bore, 195mm stroke, G1/2 port (PT/G/NPT thread options), and your specific mounting accessory (LB, FA, TC, etc.). Because this SKU lacks the -S magnet suffix, it cannot support legacy CS1-B/DS1-B sensors; if position detection is required, switch to a magnet-equipped SAI model. When sizing, note the 100mm bore yields 3927 N push at 0.5 MPa, while the neighboring 80mm bore provides 2513 N. For applications requiring load holding on air loss, note that the standard air cushion only decelerates the piston and does not lock it; you must use an external pilot check valve or explore the SAIL or BSAI lock variants.
Replacement checklist
Yes, the SI100AX195 is discontinued. The direct replacement is the AirTAC SAI100AX195. It shares the identical ISO 15552 mounting interface, 100mm bore, 195mm stroke, G1/2 port, and output force, fitting directly into your existing machine fixtures.
The 100mm bore features a G1/2 air port and delivers 3927 N push and 3681 N pull at 0.5 MPa. At 0.7 MPa it pushes 5497 N, and at 0.9 MPa it pushes 7068 N. The theoretical maximum force is 801 kgf at 1.0 MPa, operating at speeds of 30-800 mm/s.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100AX195 replacement — usually within 7-8 hours.