This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ100X100-100, 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 SIJ100 Double Rod Adjustable Cylinder SIJ100X100-100 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 100mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ100X100-100, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ100X100-100 is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder. A G1/2 ported, 100mm bore unit with a 25mm rod, it lets you trim the extend stroke by up to 100mm on-site via an external stop screw. The direct replacement is the SAIJ100X100-100, matching the bore, force, adjust window, and mounting.
The SAIJ successor retains the interface but upgrades the piston seal to two Y-shaped one-way elements for lower start-up pressure and longer life. The stop screw sets the end position but is not a load lock; for held loads use an external rod lock or SAIL/BSAI variant. This non-magnetic SKU cannot take a switch.
| Model | Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X100-100 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ100X100-100 |
| Bore size | Ø100 mm |
| Stroke | 100 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 SAIJ100X100-100 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 SAIJ100X100-100 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. |
| ×100 | 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).
Sheet metal stamping lines needing field stroke tuning to accommodate different material thicknesses without swapping the entire actuator.
Packaging conveyors where the extend reach must be precisely trimmed on-site to handle varying package widths on the fly.
Logistics sortation systems requiring an external stop to set the exact protrusion distance for diverse pallet dimensions.
To replace the discontinued SIJ100X100-100, order the direct replacement SAIJ100X100-100, reusing your existing ISO 15552 FA, LB, or TC mounts. The 100mm adjust window means you can shorten the extend stroke anywhere from 0 to 100mm on-site. Because this SKU lacks the -S magnet, it cannot accept legacy CS1-B/DS1-B sensors. For strokes at or above 300mm, verify side-load limits to prevent rod binding. Remember the external stop sets end position only; it does not hold loads on air loss.
Replacement checklist
Yes, the SIJ100X100-100 is discontinued. The direct replacement is the SAIJ100X100-100. It shares the identical ISO 15552 interface, 100mm bore, 100mm adjust window, G1/2 port, and mounting options, but features an upgraded two-piece Y-shaped piston seal for longer life.
The external stop screw window is 100mm, meaning you can trim the extend stroke by up to 100mm on-site. The stop sets end position only and does not lock the load.
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ100X100-100 replacement — usually within 7-8 hours.