This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32AX165, 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.
Airtac SI32 Standard Air Cylinder SI32AX165
The AirTAC SI32 Standard Air Cylinder SI32AX165 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 165mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32AX165, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke165 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32AX165
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SI32 Standard Air Cylinder SI32AX165
The AirTAC SI32AX165 is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 165mm stroke. It delivers 402N push force at 0.5MPa via a G1/8 port. The direct replacement is the SAI32AX165, matching the interface, bore, stroke, force, port and mounting. This SKU features a SUS420J2 stainless steel rod (A suffix) and lacks a magnet, meaning it cannot accept a position sensor.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. For load holding, note that the cushion only decelerates; a plain cylinder drifts without air, so use an external rod lock or pilot check valve.
Airtac SI32 Standard Air Cylinder SI32AX165 Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32AX165 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32AX165 |
| Bore size | Ø32 mm |
| Stroke | 165 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 SAI32AX165 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
The SAI32AX165 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI32 Standard Air Cylinder SI32AX165
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×165 | 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).
Where the Airtac SI32 Standard Air Cylinder SI32AX165 Is Used
Small Part Ejection
Ideal for pushing lightweight machined components out of a fixture using its 402N push force at 0.5MPa.
Package Diverting
Acts as a compact diverting arm on a conveyor line, with the 165mm stroke providing precise routing of small boxes.
Corrosive Environment Actuation
The SUS420J2 stainless rod option makes it suitable for actuating gates or valves in humid or mildly corrosive settings.
Replacing the Airtac SI32 Standard Air Cylinder SI32AX165 with the SAI32AX165
To replace the SI32AX165, order the SAI32AX165. Confirm the ISO 15552 mounting interface, the 32mm bore, 165mm stroke, G1/8 port, and your specific mounting accessory. Because this SKU has no -S magnet, it cannot support legacy CS1-B/DS1-B sensors; order an -S version if sensing is needed. For sizing, the 32mm bore yields 402N push at 0.5MPa; if less force is required, drop to a 20mm bore, or step up to 40mm (628N) for more thrust. The cushion only decelerates the load; it does not hold position. For secure holding, use an external pilot check valve, or explore the SAIL or BSAI lock variants. Since the stroke is under 300mm, rod bending is minimal, but always guide the load to prevent side-load wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32AX165
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI32 Standard Air Cylinder SI32AX165 FAQ
Yes, the SI32AX165 is discontinued. The direct replacement is the SAI32AX165. It is dimensionally interchangeable per ISO 15552, matching the 32mm bore, 165mm stroke, G1/8 port, and mounting interface, so it fits existing fixtures perfectly.
The 32mm bore provides 402N push and 345N pull at 0.5MPa, 563N push at 0.7MPa, 724N push at 0.9MPa, and a theoretical max of 82kgf at 1.0MPa. Operating speed is 30-800mm/s. It uses a G1/8 port and a 12mm rod with an M10x1.25 thread.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32AX165
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32AX165 replacement — usually within 7-8 hours.