This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X193S, 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 SI100X193S 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 SAI100X193S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI100X193S is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 193mm stroke. It delivers 3927N push force at 0.5MPa via a G1/2 port. The direct replacement is the SAI100X193S, matching the interface, bore, stroke, force and mounting.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure and long life. It adds SAIL, SAIF and BSAI variants the SI lacked. The -S magnet works with CS1-B/DS1-B sensors, while SAI uses current AirTAC switches.
| Model | Airtac SI100 Standard Cylinder SI100X193S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X193S |
| 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 SAI100X193S 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 SAI100X193S 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 large stamps and forms requiring substantial thrust, utilising the 3927N push force at 0.5MPa.
Actuates heavy load diverters and lifts in automated distribution hubs with a 200kg vertical lift capacity.
Controls heavy product flow on high-capacity manufacturing lines, absorbing end-of-stroke impact via cushions.
To replace the SI100X193S, order the SAI100X193S and confirm the ISO 15552 mounting interface, 100mm bore, 193mm stroke, G1/2 port (PT/G/NPT) and mounting accessory. The -S magnet enables position sensing. If sizing both ways, neighbouring bores offer different footprints, while at 0.5MPa this 100mm bore yields 3927N push and 3681N pull. A plain cylinder drifts on air loss as the cushion only decelerates; for load holding use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant. For any stroke over 300mm, add a guide to prevent rod bending.
Replacement checklist
Yes, the SI100X193S is discontinued. The direct replacement is the SAI100X193S. It is dimensionally interchangeable per ISO 15552, matching the 100mm bore, 193mm stroke, force, G1/2 port and mounting interface.
The G1/2 port feeds a 100mm bore yielding 3927N push and 3681N pull at 0.5MPa, 5497N push at 0.7MPa, 7068N push at 0.9MPa, and a theoretical max of 801kgf at 1.0MPa. Speed is 30-800mm/s.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X193S replacement — usually within 7-8 hours.