This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ32X150-30S, 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 SIJ32 Double Rod Adjustable Cylinder SIJ32X150-30S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 150mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ32X150-30S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ32X150-30S is a double-acting double-rod ISO 15552 adjustable-stroke cylinder featuring a 32 mm bore, 150 mm maximum stroke, and a built-in piston magnet. An external stop screw allows you to trim the extend stroke by up to 30 mm on-site, yielding a usable extend range of 120-150 mm. The stop screw sets the end position but is not a load lock.
This SIJ model is discontinued and the direct replacement is the SAIJ32X150-30S, retaining the same ISO 15552 mounting interface, 12 mm rod, M10x1.25 thread, and force ratings. The SAIJ family uses an upgraded two-piece Y-shaped piston seal for lower start-up pressure and longer life.
| Model | Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X150-30S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ32X150-30S |
| Bore size | Ø32 mm |
| Stroke | 150 mm |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M10×1.25 |
| 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, 27 mm |
| Max standard stroke | Up to 1000 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAIJ32X150-30S 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 | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
The SAIJ32X150-30S 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). |
|---|---|
| 32 | 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 manually dial in the exact extend stop between 120 and 150 mm to accommodate product size changes on a conveyor line.
Provides adjustable end-of-stroke positioning for sealing heads that must handle varying carton heights without changing the entire cylinder.
Enables a single ejection station to trim its push-out distance by up to 30 mm on-site for different mold configurations or part thicknesses.
To replace the discontinued SIJ32X150-30S, order the direct replacement SAIJ32X150-30S, which matches the 32 mm bore, 150 mm stroke, 30 mm adjust window, G1/8 port, and FA/LB/TC mountings. Select the 30 mm adjust window if you need to fine-tune the extend stroke between 120 and 150 mm on-site. The -S suffix indicates a piston magnet is present for legacy CS1-B/DS1-B switches. For stroke lengths of 300 mm or more, verify your side-load limits to prevent excessive rod wear. Remember that a plain cylinder does not hold loads on air loss; for held loads use an external rod lock or the SAIL/BSAI variant.
Replacement checklist
Yes, the SIJ32X150-30S is discontinued. The direct replacement is the SAIJ32X150-30S. It shares the same ISO 15552 interface, 32 mm bore, 150 mm stroke, 30 mm adjust window, G1/8 port, and mounting options, but features an upgraded piston seal.
The external stop screw provides a 30 mm adjustment window, allowing the extend stroke to be shortened from the 150 mm maximum down to 120 mm. The stop sets end position and is not a load lock.
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ32X150-30S replacement — usually within 7-8 hours.