This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ100X75-75, 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 SIJ100X75-75 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 75mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ100X75-75, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ100X75-75 is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder. An external stop screw lets you trim the extend stroke by up to 75 mm on-site, setting the end position without a lock.
The direct replacement is the SAIJ100X75-75, matching the interface, force, and mounts. Upgrades include an SAI two-piece Y-shaped piston seal for low start-up pressure. Note: this SKU lacks a magnet (-S) and cannot take a switch.
| Model | Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X75-75 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ100X75-75 |
| Bore size | Ø100 mm |
| Stroke | 75 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 SAIJ100X75-75 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 SAIJ100X75-75 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. |
| ×75 | 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).
Adjustable end-position allows precise extend stroke tuning for press-fit operations without changing the cylinder body.
On-site stroke trimming accommodates changing package sizes on a diverter, setting the exact push distance needed.
External stop screw fine-tunes the ejection length for parts of varying heights, ensuring consistent ejection without reprogramming.
To replace the discontinued SIJ100X75-75, order the direct replacement SAIJ100X75-75, reusing your FA, LB, or TC mounts. Choose the 75 mm adjust window if you need to trim the extend stroke on-site. Because this SKU has no -S magnet, it cannot support legacy CS1-B/DS1-B sensors. For strokes >=300 mm, verify side-load guidance. The stop screw sets position, not a lock; for held loads use an external rod lock or SAIL/BSAI variant.
Replacement checklist
Yes, the SIJ100X75-75 is discontinued. The direct replacement is the SAIJ100X75-75. It shares the same ISO 15552 interface, 100 mm bore, 75 mm stroke, 75 mm adjust window, G1/2 port, and mounting options, while adding an upgraded SAI piston seal.
The external stop screw provides a 75 mm adjust window to trim the extend stroke on-site. The stop sets end position and is not a load lock; for load holding use an external rod lock.
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ100X75-75 replacement — usually within 7-8 hours.