This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X193SN, 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 SI100X193SN is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 193mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X193SN, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI100X193SN is a discontinued double-acting ISO 15552 profile cylinder with an extruded aluminum barrel, delivering 3927 N push force at 0.5 MPa through its G1/2 port. Because this legacy SI unit is end-of-life, you should order the direct replacement: SAI100X193SN. It shares the same 100 mm bore, 193 mm stroke, M20x1.5 rod thread, and mounting interface, dropping directly into existing fixtures.
The SAI upgrade introduces a refined piston seal utilizing two Y-shaped one-way elements for extended life and lower start-up pressure. This SN variant includes a piston magnet for CS1-B/DS1-B legacy sensors and an NBR seal rated for -20 to +70 C (a Viton H option extends this to 150 C).
| Model | Airtac SI100 Standard Cylinder SI100X193SN |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X193SN |
| Bore size | Ø100 mm |
| Stroke | 193 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 SAI100X193SN 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 SAI100X193SN 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. |
| ×193 | 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 substantial thrust, utilizing the 7068 N output at 0.7 MPa.
Actuates heavy-duty pallet stops and diverter arms on packaging lines, benefiting from the 36 mm cushioning.
To replace the discontinued SI100X193SN, order the SAI100X193SN. Verify your ISO 15552 mounting accessory (LB, FA, TC, etc.), the G1/2 air port, and the M20x1.5 rod thread. The built-in magnet (-S) works with legacy CS1-B/DS1-B sensors, though the SAI family uses current AirTAC switches. If you need to size up or down, adjacent ISO 15552 bores are 80 mm (2513 N push @0.5 MPa) and 125 mm (6136 N push @0.5 MPa). Remember that a standard cylinder drifts on air loss; the 36 mm adjustable cushions only decelerate near stroke end. For load holding, use an external pilot check valve or explore the SAIL or BSAI lock variants. Since 193 mm is below the 300 mm threshold, rod bending is minimal, but always guide external loads.
Replacement checklist
Yes, the SI100X193SN is discontinued. The direct replacement is the SAI100X193SN. It is dimensionally interchangeable per ISO 15552, retaining the same bore, stroke, force, G1/2 port, and mounting interface.
This 100 mm bore cylinder features a G1/2 port. It delivers 3927 N push and 3681 N pull at 0.5 MPa, 5497 N push at 0.7 MPa, 7068 N at 0.9 MPa, and a maximum theoretical force of 801 kgf at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X193SN replacement — usually within 7-8 hours.