This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ32X160-40S, 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 SIJ32X160-40S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 160mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ32X160-40S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ32X160-40S is a 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 forward range of 120 to 160 mm.
This SIJ series is discontinued and the direct replacement is the SAIJ32X160-40S, retaining the exact ISO 15552 mounting interface, force, and adjust window. The SAIJ upgrade introduces a two-piece Y-shaped piston seal for lower start-up pressure and longer life. The -S suffix indicates a piston magnet for legacy CS1-B/DS1-B sensors.
| Model | Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X160-40S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ32X160-40S |
| Bore size | Ø32 mm |
| Stroke | 160 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 SAIJ32X160-40S 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 SAIJ32X160-40S 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. |
| ×160 | 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 fine-tune the 120-160 mm extend reach on-site to hit a moving conveyor diverter accurately without swapping cylinders.
Provides adjustable end-of-stroke positioning for packaging equipment that must adapt to different carton depths on the fly.
Sets precise material bend depths in light forming presses, using the external stop screw to dial in the exact 40 mm trim window.
To replace the discontinued SIJ32X160-40S, order the direct replacement SAIJ32X160-40S; it matches the 32 mm bore, 160 mm max stroke, 40 mm adjust window, G1/8 port, and ISO 15552 mounting. Choose the 40 mm adjust window if your end-position tuning requires trimming the extend stroke by up to 40 mm on-site. Mounting attachments (FA, LB, TC) reuse the existing ISO 15552 interface. The -S magnet supports legacy CS1-B/DS1-B reed switches. For stroke lengths of 300 mm or more, verify guide alignment to prevent excessive side-loading on the 12 mm rod.
Replacement checklist
Yes, the SIJ32X160-40S is discontinued. The direct replacement is the SAIJ32X160-40S. It shares the same ISO 15552 interface, 32 mm bore, 160 mm max stroke, 40 mm adjust window, and G1/8 port, but features an upgraded two-piece Y-shaped piston seal for longer life.
The external stop screw provides a 40 mm adjust window, allowing you to shorten the extend stroke from the 160 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 SAIJ32X160-40S replacement — usually within 7-8 hours.