This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ32X65-20S, 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 SIJ32X65-20S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 65mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ32X65-20S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ32X65-20S is a double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 32 mm bore and 65 mm nominal stroke. An external stop screw lets you trim the extend stroke by up to 20 mm on-site, yielding a usable 45-65 mm extension window. The SIJ32X65-20S is discontinued; the direct replacement is the SAIJ32X65-20S, sharing the same interface, force, and adjust window.
The SAIJ upgrade incorporates an improved two Y-shaped one-way piston seal for lower start-up pressure and longer life. This -S model includes a piston magnet for legacy CS1-B/DS1-B switches. Remember the stop screw sets end position only; it is not a load lock, so use an external rod lock or SAIL variant for held loads.
| Model | Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X65-20S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ32X65-20S |
| Bore size | Ø32 mm |
| Stroke | 65 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 SAIJ32X65-20S 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 SAIJ32X65-20S 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. |
| ×65 | 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).
Ideal for clamping parts where the exact contact point varies by up to 20 mm, allowing on-site extend stroke tuning from 45 to 65 mm without changing hardware.
Suited for light-duty push operations needing a precise end position that can be dialed in via the external stop screw rather than relying on a fixed mechanical stop.
Useful on conveyor lines for diverting items of slightly different sizes, using the adjustable stroke to ensure gentle contact without repositioning the cylinder.
To replace the discontinued SIJ32X65-20S, specify SAIJ32X65-20S for an direct swap retaining the 20 mm adjust window, 65 mm max stroke, and G1/8 port. Select the 20 mm adjust window if your extend stroke requires field tuning between 45 mm and 65 mm. Mounting options include Basic, FA, LB, and TC brackets. The -S suffix confirms a built-in magnet for switch sensing. Because the 65 mm stroke is under 300 mm, side-load rod deflection is minimal and does not require extra support calculations.
Replacement checklist
Yes, the AirTAC SIJ32X65-20S is discontinued. The direct replacement is the SAIJ32X65-20S. It shares the same ISO 15552 interface, 32 mm bore, 65 mm nominal stroke, 20 mm adjust window, G1/8 port, and mounting options, but features an upgraded piston seal for longer life.
The external stop screw provides a 20 mm adjust window, allowing the extend stroke to be shortened on-site from the 65 mm maximum down to 45 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 SAIJ32X65-20S replacement — usually within 7-8 hours.