This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ100X150-30S, 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 SIJ100X150-30S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 150mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ100X150-30S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ100X150-30S is a discontinued double-acting double-rod adjustable-stroke ISO 15552 cylinder. An external stop screw lets you trim the extend stroke by up to 30mm on-site, giving a usable 120-150mm window from the 150mm nominal maximum. The direct replacement is the SAIJ100X150-30S, sharing the same interface, force, and mounting.
The SAIJ successor retains the upgraded SAI piston seal with two Y-shaped one-way elements for low start-up pressure and long life. Remember the stop screw sets end position only; it is not a load lock, and a plain cylinder drifts on air loss. For held loads, use an external rod lock or the SAIL/BSAI variants.
| Model | Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X150-30S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ100X150-30S |
| Bore size | Ø100 mm |
| Stroke | 150 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 SAIJ100X150-30S 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 SAIJ100X150-30S 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. |
| ×150 | 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).
Allows operators to fine-tune the 120-150mm extend stroke on-site by up to 30mm to set precise pressing depths for bearings without changing the cylinder.
Provides adjustable end-positioning for diverting different package sizes on a line, trimming the extend stroke as needed for each format change.
Accommodates varying carton heights in a packaging station by limiting the extend stroke within the 30mm window to prevent crushing the contents.
To replace the discontinued SIJ100X150-30S, order the exact direct replacement SAIJ100X150-30S, keeping the 150mm nominal stroke, 30mm adjust window, and -S magnet for legacy CS1-B/DS1-B switches. Choose the 30mm adjust window if your field tuning requires trimming the extend stroke by up to 30mm on-site, yielding a 120-150mm usable stroke. Mounting reuses genuine ISO 15552 interface dimensions like FA, LB, or TC without tie-rods. For strokes at or above 300mm, verify side-load guidance to prevent rod wear. The stop screw sets end position but is not a lock; for load holding without live air, specify an external rod lock or pilot-operated check valve.
Replacement checklist
Yes, the SIJ100X150-30S is discontinued. The direct replacement is the SAIJ100X150-30S, which shares the same ISO 15552 interface, 100mm bore, 150mm stroke, 30mm adjust window, G1/2 port, and mounting options.
The external stop screw window is 30mm, allowing you to trim the extend stroke on-site from the 150mm nominal maximum down to 120mm. The stop sets end position only and is not a load lock.
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ100X150-30S replacement — usually within 7-8 hours.