This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32AX175S, 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 SI32AX175S
The AirTAC SI32 Standard Air Cylinder SI32AX175S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 175mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32AX175S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke175 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32AX175S
- 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 SI32AX175S
The AirTAC SI32AX175S is a discontinued double-acting ISO 15552 profile cylinder with a 32 mm bore and 175 mm stroke. It features a SUS420J2 stainless piston rod and a built-in magnet for legacy CS1-B/DS1-B switches. Delivering 402 N push at 0.5 MPa through a G1/8 port, its direct replacement is the SAI32AX175S. This current-production upgrade retains the exact ISO 15552 mounting interface, bore, stroke, force and accessories, fitting existing fixtures seamlessly.
The SAI32AX175S upgrades the piston seal to two Y-shaped one-way elements, ensuring long life and low start-up pressure. If you need load holding on air loss, explore the SAIL or BSAI lock variants, as standard cushions only decelerate.
Airtac SI32 Standard Air Cylinder SI32AX175S Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32AX175S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32AX175S |
| Bore size | Ø32 mm |
| Stroke | 175 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 SAI32AX175S 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 SAI32AX175S 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 SI32AX175S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×175 | 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 SI32AX175S Is Used
Small Part Ejection
Ideal for pushing lightweight machined components out of CNC fixtures using a compact 32 mm bore and 175 mm stroke.
Lab Automation Handling
The SUS420J2 stainless rod option provides necessary corrosion resistance for cleanroom and laboratory environments.
Replacing the Airtac SI32 Standard Air Cylinder SI32AX175S with the SAI32AX175S
To replace the SI32AX175S, order the SAI32AX175S. Confirm the ISO 15552 mounting interface, 32 mm bore, 175 mm stroke, G1/8 port, and your specific mounting accessory (LB, FA, TC, etc.). The -S suffix ensures the piston magnet is included for position sensing; the legacy SI used CS1-B/DS1-B switches, while the SAI family uses current AirTAC sensors. The -A rod material denotes SUS420J2 stainless steel, offering superior corrosion resistance compared to the standard carbon-steel rod. When sizing, note the 32 mm bore yields 402 N push at 0.5 MPa; if more force is needed, step up to a 40 mm bore (628 N push). Because the 175 mm stroke is under 300 mm, side-load rod-bending risks are minimal, but always ensure proper guide alignment. A plain cylinder does not hold load without live air; for dead-load holding, consider the SAIL air-released lock, the BSAI clamp-lock, or an external pilot check valve.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32AX175S
- ✓ 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 SI32AX175S FAQ
Yes, the SI32AX175S is discontinued. The direct replacement is the SAI32AX175S. It is dimensionally interchangeable per ISO 15552, matching the 32 mm bore, 175 mm stroke, G1/8 port, and mounting interface, but features an upgraded piston seal for longer life.
The 32 mm bore uses a G1/8 port. Force ratings are: 402 N push and 345 N pull at 0.5 MPa, 563 N push at 0.7 MPa, 724 N push at 0.9 MPa, and a theoretical max of 82 kgf at 1.0 MPa. The piston rod is 12 mm with an M10x1.25 thread.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32AX175S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32AX175S replacement — usually within 7-8 hours.