This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32AX45, 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 SI32AX45
The AirTAC SI32 Standard Air Cylinder SI32AX45 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 45mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32AX45, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke45 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32AX45
- 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 SI32AX45
The AirTAC SI32AX45 is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 45mm stroke. Delivering 402N push force at 0.5MPa via a G1/8 port, it is replaced by the SAI32AX45. This direct successor shares identical mounting and dimensions, fitting existing fixtures perfectly.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure and long life. This SKU lacks a magnet (-S), so it cannot accept CS1-B/DS1-B sensors. The -A rod is SUS420J2 stainless.
Airtac SI32 Standard Air Cylinder SI32AX45 Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32AX45 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32AX45 |
| Bore size | Ø32 mm |
| Stroke | 45 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 SAI32AX45 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 SAI32AX45 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 SI32AX45
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×45 | 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 SI32AX45 Is Used
Ejector Mechanisms
Provides reliable 45mm ejection strokes for small plastic molded parts using the 345N pull force at 0.5MPa.
Light Diverter Gates
Actuates compact routing flaps on packaging lines, utilizing the SUS420J2 stainless rod for mild corrosion resistance.
Replacing the Airtac SI32 Standard Air Cylinder SI32AX45 with the SAI32AX45
To replace the SI32AX45, order the SAI32AX45, confirming the ISO 15552 interface, 32mm bore, 45mm stroke, G1/8 port, and SUS420J2 stainless rod. Since this SKU lacks a magnet, it cannot hold a sensor; order an -S variant if position detection is needed. The 45mm stroke is under 300mm, so rod bending risks are minimal. If sizing up or down, adjacent bores (40mm) or the 563N [email protected] force provide scaling reference. Note that standard cylinders drift without air; for load holding on pressure loss, use an external pilot check valve or explore SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32AX45
- ✓ 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 SI32AX45 FAQ
Yes, the AirTAC SI32AX45 is discontinued. The direct replacement is the SAI32AX45, which shares the same ISO 15552 mounting interface, 32mm bore, 45mm 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. The SAI upgrade adds two Y-shaped piston seals for low start-up pressure.
Request a Quote for the SAI32AX45
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32AX45 replacement — usually within 7-8 hours.