This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ100X150-30, 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 SIJ100X150-30 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 SAIJ100X150-30, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ100X150-30 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 30 mm on-site, giving a usable 120-150 mm window from the 150 mm nominal maximum. It features a 25 mm rod, M20x1.5 thread, 36 mm adjustable cushions, and a fixed G1/2 port.
The direct replacement is the SAIJ100X150-30, matching the ISO 15552 mounting interface, force, and adjust window. The SAIJ upgrade introduces a two Y-shaped one-way piston seal for lower start-up pressure and longer life. Note this SKU lacks a -S magnet and cannot take a switch; the stop screw sets end position but is not a load lock.
| Model | Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X150-30 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ100X150-30 |
| 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 SAIJ100X150-30 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 SAIJ100X150-30 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 dial in the exact 120-150 mm extend position for pressing bearings without remachining hard stops.
Fine-tunes the extend stroke on-site to accommodate varying package sizes on a sorting line.
Trims the extend endpoint by up to 30 mm to handle different carton heights precisely.
To replace the discontinued SIJ100X150-30, order the direct replacement SAIJ100X150-30, reusing your existing FA, LB, or TC ISO 15552 mounts and G1/2 piping. The 30 mm adjust window is ideal for fine-tuning the extend endpoint without machining external stops, which beats using a fixed SAI cylinder plus a fabricated external stop. Because this SKU has no -S magnet, it cannot accept legacy CS1-B/DS1-B sensors; add external sensing if needed. For strokes of 300 mm or longer, carefully manage side-load moments to prevent rod binding. Remember the stop screw only sets the end position—it is not a lock; for held loads use an external rod lock, a pilot-operated check valve, or the SAIL/BSAI lock variants.
Replacement checklist
Yes, the SIJ100X150-30 is discontinued. The direct replacement is the SAIJ100X150-30, offering the same ISO 15552 interface, 150 mm stroke, 30 mm adjust window, and G1/2 port. The SAIJ family also uses an upgraded two Y-shaped one-way piston seal for longer life.
The external stop screw allows you to trim the extend stroke by up to 30 mm on-site, yielding a usable 120-150 mm stroke. 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 SAIJ100X150-30 replacement — usually within 7-8 hours.