This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ32X350-75, 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 SIJ32 Double Rod Adjustable Cylinder SIJ32X350-75 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 350mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ32X350-75, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ32X350-75 is a double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 32 mm bore and 350 mm maximum stroke. An external stop screw lets you trim the extend stroke by up to 75 mm on-site, yielding a usable 275-350 mm window. This SIJ model is discontinued; the direct replacement is the SAIJ32X350-75, matching the interface, force, and mounting.
The SAIJ upgrade incorporates an improved two-piece Y-shaped piston seal for lower start-up pressure and longer life. Note this SKU lacks a -S magnet and cannot accept a sensor. The stop screw sets end position but is not a load lock; use an external rod lock for held loads.
| Model | Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X350-75 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ32X350-75 |
| Bore size | Ø32 mm |
| Stroke | 350 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 SAIJ32X350-75 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 | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
The SAIJ32X350-75 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). |
|---|---|
| 32 | Bore size in mm. |
| ×350 | 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).
Tuning the 75 mm stop screw on-site allows precise 275-350 mm extend positioning for drilling operations requiring multiple depths without changing cylinders.
Field-adjusting the extend end position avoids manufacturing multiple fixed-length actuators when diverting varying pallet loads.
To replace the discontinued SIJ32X350-75, order the direct replacement SAIJ32X350-75, which preserves the 32 mm bore, 350 mm stroke, 75 mm adjust window, and G1/8 port. Choose the 75 mm adjust window if you need on-site extend tuning from 275 to 350 mm. Mounting options include FA, LB, and TC brackets. Because this SKU has no -S magnet, it cannot support legacy CS1-B or DS1-B sensors. For the 350 mm stroke, use external guides to mitigate rod-bending and side-load risks.
Replacement checklist
Yes, the SIJ32X350-75 is discontinued. The direct replacement is the SAIJ32X350-75, offering the same ISO 15552 interface, 32 mm bore, 350 mm stroke, 75 mm adjust window, and G1/8 port.
The external stop screw allows trimming the extend stroke by up to 75 mm on-site (usable 275-350 mm).
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ32X350-75 replacement — usually within 7-8 hours.