This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ32X80-50S, 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 SIJ32X80-50S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 80mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ32X80-50S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ32X80-50S is a double-acting double-rod ISO 15552 adjustable-stroke cylinder, now discontinued and replaced by the SAIJ32X80-50S. It uses an external stop screw to trim the extend stroke by up to 50mm on-site, yielding a usable 30-80mm stroke from the 80mm nominal maximum. The stop sets the end position but is not a load lock; loads drift on air loss.
The SAIJ direct retains the interface, force, and mounting, adding an upgraded two-piece Y-shaped piston seal for low start-up pressure. The -S suffix provides a piston magnet for legacy CS1-B/DS1-B switches. Adjustable 27mm cushions decelerate near stroke end, never holding position.
| Model | Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X80-50S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ32X80-50S |
| Bore size | Ø32 mm |
| Stroke | 80 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 SAIJ32X80-50S 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 SAIJ32X80-50S 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. |
| ×80 | 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).
Tune the extend stroke on-site to clamp delicate workpieces without repositioning the entire fixture.
Adjust the extend stop to accommodate varying package sizes on the fly without swapping cylinders.
Trim the extend stroke to precisely eject small parts from a tight 32mm bore assembly space.
To replace the discontinued SIJ32X80-50S, order the direct replacement SAIJ32X80-50S, keeping the 32mm bore, 80mm stroke, 50mm adjust window, and G1/8 port. Choose the 50mm adjust window when you need to fine-tune the extend end position on-site. Mounting interfaces include Basic, FA, LB, and TC. The -S suffix includes a magnet for legacy CS1-B/DS1-B switches. For stroke lengths >=300mm, verify side-load guidance to prevent rod binding. Because the stop screw is not a lock, use an external rod lock or SAIL/BSAI variant for held loads.
Replacement checklist
Yes, the SIJ32X80-50S is discontinued. The direct replacement is the SAIJ32X80-50S, offering the same ISO 15552 interface, 32mm bore, 80mm stroke, 50mm adjust window, and G1/8 port.
The external stop screw trims the extend stroke by up to 50mm on-site, giving a usable 30-80mm stroke from the 80mm maximum. 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 SAIJ32X80-50S replacement — usually within 7-8 hours.