This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32BX175S, 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 SI32BX175S
The AirTAC SI32 Standard Air Cylinder SI32BX175S 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 SAI32BX175S, 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 → SAI32BX175S
- 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 SI32BX175S
The AirTAC SI32BX175S is a discontinued double-acting ISO 15552 profile cylinder featuring a 32mm bore, 175mm stroke, and a SUS304 stainless steel rod. Delivering 402N push force at 0.5MPa via a G1/8 port, it is replaced by the SAI32BX175S.
The SAI direct keeps the exact ISO 15552 mounting interface and adds an upgraded piston seal with two Y-shaped elements for low start-up pressure. The -S magnet works with legacy CS1-B/DS1-B sensors.
Airtac SI32 Standard Air Cylinder SI32BX175S Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32BX175S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32BX175S |
| 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 SAI32BX175S 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 SAI32BX175S 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 SI32BX175S
| 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 SI32BX175S Is Used
Stainless Rod Actuation
Ideal for light-duty machinery requiring corrosion resistance, utilizing the SUS304 rod for reliable push force in humid or washdown environments.
Package Diverting
Provides precise 175mm stroke movement for sorting small to medium packages on conveyor lines, operating efficiently at 30-800 mm/s.
Lab Automation
Suitable for testing fixtures and automated lab equipment where compact 32mm bore size and accurate end-position sensing are essential.
Replacing the Airtac SI32 Standard Air Cylinder SI32BX175S with the SAI32BX175S
To replace the SI32BX175S, order the SAI32BX175S. Confirm the ISO 15552 mounting interface, 175mm stroke, G1/8 port, and the -S magnet for CS1-B/DS1-B switches. The -B rod is SUS304 stainless steel. If you need more force, the neighboring 40mm bore yields 628N push at 0.5MPa; if less force is acceptable, a 32mm bore at lower pressure still operates above 0.15MPa. For stroke lengths over 300mm, guide external loads to prevent rod bending. A plain cylinder drifts on air loss—the cushion only decelerates—so use an external rod lock or pilot check valve for load holding, or choose the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32BX175S
- ✓ 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 SI32BX175S FAQ
Yes, the AirTAC SI32BX175S is discontinued. The direct replacement is the SAI32BX175S. It features the same ISO 15552 mounting interface, 32mm bore, 175mm stroke, G1/8 port, and SUS304 stainless steel rod, fitting existing fixtures perfectly.
This double-acting cylinder has a G1/8 port. It delivers 402N push and 345N pull at 0.5MPa, 563N push at 0.7MPa, 724N push at 0.9MPa, and a theoretical maximum of 82 kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32BX175S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32BX175S replacement — usually within 7-8 hours.