This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100BX190, 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 SI100BX190 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 SAI100BX190, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI100BX190 is a discontinued double-acting ISO 15552 profile cylinder with a 100mm bore and 190mm stroke. Delivering 3927 N push at 0.5 MPa, it features a Ø25mm SUS304 stainless rod, M20x1.5 thread, and a G1/2 port. The direct replacement is the SAI100BX190, which maintains identical ISO 15552 mounting dimensions, force, and porting.
This SKU lacks a magnet and cannot accept a sensor. The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure. For load holding, note that cushions only decelerate; use an external rod lock or pilot check valve.
| Model | Airtac SI100 Standard Cylinder SI100BX190 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100BX190 |
| 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 SAI100BX190 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 SAI100BX190 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).
Applies up to 5497 N at 0.7 MPa for seating bearings or forming light components, utilizing the robust 100mm bore and SUS304 rod.
Pushes heavy packages or totes on sorting lines, benefiting from the 30-800 mm/s speed range and adjustable 36mm cushions.
To replace the SI100BX190, order the SAI100BX190. Verify the ISO 15552 interface, 100mm bore, 190mm stroke, G1/2 port, and SUS304 (-B) rod. Since this SKU lacks a magnet (-S), it cannot use CS1-B/DS1-B sensors. Sizing both ways: a neighbouring 80mm bore yields 2513 N [email protected], while the 100mm bore hits 5497 N at 0.7 MPa. For load holding, the standard cushion only decelerates; add an external pilot check valve or explore the SAIL or BSAI lock variants. At 190mm stroke, rod bending is minimal, but always guide external loads to prevent side-load wear.
Replacement checklist
Yes, the AirTAC SI100BX190 is discontinued. The direct replacement is the SAI100BX190. It features the same ISO 15552 mounting interface, 100mm bore, 190mm stroke, output force, and G1/2 port, fitting existing fixtures perfectly.
The G1/2 port bore 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 theoretical max of 801 kgf at 1.0 MPa. It operates at 30-800 mm/s.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100BX190 replacement — usually within 7-8 hours.