This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ32X150-40, 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 SIJ32X150-40 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 SAIJ32X150-40, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ32X150-40 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 40 mm on-site, giving a usable 110-150 mm window from the 150 mm nominal maximum. The 32 mm bore uses a G1/8 port, M10x1.25 rod thread, and 27 mm adjustable cushions.
The direct replacement is the SAIJ32X150-40, matching the interface, force, port, and mounting. The SAIJ upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. This SKU has no -S magnet and cannot take a switch; the stop sets end position but is not a load lock.
| Model | Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X150-40 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ32X150-40 |
| 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 SAIJ32X150-40 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 SAIJ32X150-40 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).
A machining fixture needing field stroke tuning to accommodate different material thicknesses, using the 40 mm extend trim to set precise drill depth without re-plumbing.
Packaging line diverters requiring on-site stroke adjustments to handle varying box sizes, trimming the 150 mm extend down to 110 mm for shorter packages.
Assembly stations clamping parts of non-uniform height, relying on the external stop screw to set exact clamping reach and prevent over-travel.
To replace this discontinued model, map directly to SAIJ32X150-40 (insert A after S), retaining the 40 mm adjust window and 150 mm nominal stroke. Choose the 40 mm adjust window if your field tuning requires up to 40 mm of extend trim. Mounting interfaces (FA, LB, TC) reuse existing ISO 15552 holes. Because this SKU lacks the -S suffix, it has no magnet and cannot support legacy CS1-B/DS1-B sensors. For strokes of 300 mm or longer, verify side-load guidance to prevent rod deflection. Remember the stop screw sets end position but does not lock; for held loads use SAIL, BSAI, or an external rod lock.
Replacement checklist
Yes, the SIJ32X150-40 is discontinued. The direct replacement is the SAIJ32X150-40, which shares the same ISO 15552 interface, 32 mm bore, 150 mm stroke, 40 mm adjust window, G1/8 port, and mounting options.
The external stop screw window is 40 mm, allowing you to shorten the 150 mm extend stroke down to 110 mm on-site. 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 SAIJ32X150-40 replacement — usually within 7-8 hours.