This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X190, 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 SI100X190 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 190mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X190, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI100X190 is a discontinued double-acting ISO 15552 profile cylinder with a 100 mm bore and 190 mm stroke. It delivers 3927 N push and 3681 N pull at 0.5 MPa through a G1/2 port. AirTAC replaced this legacy unit with the SAI100X190, a direct replacement sharing the exact ISO 15552 mounting interface, bore, stroke, output force, and port size.
The SAI upgrade features a refined piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. Note this specific SKU lacks a magnet (-S) and cannot accept a CS1-B/DS1-B sensor.
| Model | Airtac SI100 Standard Cylinder SI100X190 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X190 |
| Bore size | Ø100 mm |
| Stroke | 190 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 SAI100X190 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 SAI100X190 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. |
| ×190 | 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).
Ideal for applying high clamping force in metalworking and riveting fixtures, utilizing the 3927 N push force at 0.5 MPa.
Drives robust lifting and positioning mechanisms in automated storage systems where a 200 kg vertical lift capacity is required.
Actuates heavy diverter arms and sorting gates on high-throughput packaging lines, benefiting from the 36 mm adjustable cushions.
To replace the SI100X190, order the SAI100X190 and verify your ISO 15552 mounting accessory (LB, FA, CA, TC), port thread (PT/G/NPT), and 190 mm stroke. Because this SKU lacks a magnet, it cannot support position sensing; order an SAI variant with an S suffix if switches are needed. Sizing both ways: a neighbouring 80 mm bore yields 2513 N push, while a 125 mm bore yields 6136 N at 0.5 MPa. This 100 mm bore reaches 801 kgf at 1.0 MPa. A plain cylinder drifts on air loss; for load holding, use an external pilot check valve or explore the SAIL or BSAI lock variants.
Replacement checklist
Yes, the SI100X190 is discontinued. The direct replacement is the SAI100X190. It is dimensionally interchangeable per ISO 15552, retaining the same 100 mm bore, 190 mm stroke, output force, and G1/2 port to fit existing fixtures perfectly.
This double-acting cylinder features a 25 mm rod, M20x1.5 thread, G1/2 port, and operates at 30-800 mm/s. Force ratings are: 3927 N push and 3681 N pull at 0.5 MPa, 5497 N push at 0.7 MPa, 7068 N push 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 SAI100X190 replacement — usually within 7-8 hours.