This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ32X100-50, 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 SIJ32X100-50 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 100mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ32X100-50, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ32X100-50 is a double-acting double-rod ISO 15552 adjustable-stroke cylinder. The external stop screw lets you trim the extend stroke by up to 50mm on-site, yielding a usable 50-100mm range.
This SIJ model is discontinued; the direct replacement is the SAIJ32X100-50. The SAIJ retains the interface, force, and adjust window, but uses an upgraded two Y-shaped one-way piston seal for lower start-up pressure.
| Model | Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X100-50 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ32X100-50 |
| Bore size | Ø32 mm |
| Stroke | 100 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 SAIJ32X100-50 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 SAIJ32X100-50 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. |
| ×100 | 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 press operation needing field stroke tuning to accommodate different material thicknesses without swapping the entire actuator.
A diverting mechanism on a line where the extend end position must be fine-tuned on-site to handle varying package sizes.
An end-of-line stopper that requires the extend stroke to be shortened by up to 50mm on-site to adapt to new pallet dimensions.
To replace the discontinued SIJ32X100-50, specify the SAIJ32X100-50 for an exact ISO 15552 direct fit. Select the -50mm adjust window if your end-position tuning requires up to a 50mm extend reduction; for fixed points, use a standard SAI cylinder. Mounting attachments (FA, LB, TC) are reusable. This SKU lacks a -S magnet, so it cannot accept a reed switch. For strokes of 300mm or longer, verify side-load limits to prevent rod binding.
Replacement checklist
Yes, the SIJ32X100-50 is discontinued. The direct replacement is the SAIJ32X100-50, which matches the ISO 15552 interface, 32mm bore, 100mm stroke, 50mm adjust window, and G1/8 port.
The external stop screw provides a 50mm adjust window, allowing the extend stroke to be trimmed from 100mm down to 50mm on-site.
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ32X100-50 replacement — usually within 7-8 hours.