This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32AX65, 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 SI32 Standard Air Cylinder SI32AX65 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 SAI32AX65, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI32AX65 is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 65mm stroke. It delivers 402N push force at 0.5MPa via a G1/8 port. The direct replacement is the SAI32AX65, matching the exact interface, force and mounting.
This SKU features a SUS420J2 stainless piston rod but lacks a magnet, so it cannot take a sensor. The SAI upgrade uses two Y-shaped one-way piston seals for low start-up pressure.
| Model | Airtac SI32 Standard Air Cylinder SI32AX65 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32AX65 |
| 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 SAI32AX65 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 SAI32AX65 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 securing compact machined components during light milling or drilling operations.
Provides reliable short-stroke actuation to push lightweight cartons off a sorting line.
Handles delicate PCB routing or component placement tasks requiring precise 65mm movements.
To replace the SI32AX65, order the SAI32AX65 and verify the ISO 15552 mounting interface, 65mm stroke, G1/8 port and SUS420J2 rod. Since this non-magnetic SKU cannot accept a switch, add a magnet (-S) if sensing is needed. For higher force, the 40mm bore yields 628N push at 0.5MPa; for tighter spaces, the 32mm bore is optimal. Note that air cushions only decelerate the load; use an external pilot check valve or SAIL lock variant for static holding.
Replacement checklist
Yes, the SI32AX65 is discontinued. The direct replacement is the SAI32AX65, offering the same ISO 15552 mounting interface, 32mm bore, 65mm stroke, force and G1/8 port.
It features a G1/8 port and delivers 402N push / 345N pull at 0.5MPa, 563N push at 0.7MPa, and a theoretical max of 82kgf at 1.0MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32AX65 replacement — usually within 7-8 hours.