This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X362S, 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 SI100X362S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 362mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X362S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI100X362S is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 362mm stroke. Delivering 3927N push at 0.5MPa via a G1/2 port, it is replaced by the SAI100X362S. This direct upgrade shares the exact ISO 15552 mounting interface, M20x1.5 thread, and force ratings.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. The family adds SAIL, SAIF, and BSAI lock variants absent in the SI line. The -S magnet works with CS1-B/DS1-B sensors, while a plain cylinder drifts on air loss as cushions only decelerate.
| Model | Airtac SI100 Standard Cylinder SI100X362S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X362S |
| Bore size | Ø100 mm |
| Stroke | 362 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 SAI100X362S 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 SAI100X362S 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. |
| ×362 | 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).
Secures large metal castings during machining, using the 5497N push force at 0.7MPa to hold components rigidly against cutting loads.
Actuates heavy loading dock gates where the 200kg vertical lift capacity and 362mm stroke provide ample elevation for forklift access.
Ejects molded parts from heavy industrial presses, relying on the 36mm adjustable air cushions to decelerate the 100mm bore at stroke end.
To replace the SI100X362S, order the SAI100X362S. Verify the ISO 15552 mounting accessory (LB, FA, TC), the G1/2 port, and the -S magnet for CS1-B/DS1-B switches (the SAI uses current AirTAC switches). Sizing both ways: a 100mm bore yields 3927N push at 0.5MPa, while an 80mm bore yields 2513N. For the 362mm stroke, use external guides to prevent rod-bending side loads. The cushion only decelerates; for load holding on air loss, specify the SAIL lock variant, BSAI clamp-lock, or an external pilot check valve. Rod material options include carbon steel, SUS420J2, and SUS304.
Replacement checklist
Yes, the SI100X362S is discontinued. The direct replacement is the SAI100X362S. It is dimensionally interchangeable per ISO 15552, retaining the same 100mm bore, 362mm stroke, G1/2 port, and mounting interface. The SAI simply upgrades the piston seal to two Y-shaped elements for lower start-up pressure.
The 100mm bore uses a G1/2 port. It generates 3927N push and 3681N pull at 0.5MPa, 5497N push at 0.7MPa, 7068N push at 0.9MPa, and a theoretical maximum of 801kgf at 1.0MPa. Operating pressure is 0.15-1.0MPa, with a speed range of 30-800mm/s.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X362S replacement — usually within 7-8 hours.