This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X175SN, 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 SI32X175SN
The AirTAC SI32 Standard Air Cylinder SI32X175SN 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 SAI32X175SN, 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 → SAI32X175SN
- 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 SI32X175SN
The AirTAC SI32X175SN is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 175mm stroke. It delivers a push force of 402 N at 0.5 MPa via a G1/8 port. AirTAC replaced this legacy unit with the SAI32X175SN, a direct upgrade sharing the exact ISO 15552 mounting interface, bore, stroke, output force, and porting.
The SAI replacement features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. The SI32X175SN includes a magnet for CS1-B/DS1-B sensors and an NBR seal (-20 to +70 C); a Viton H option extends this to 150 C.
Airtac SI32 Standard Air Cylinder SI32X175SN Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X175SN |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X175SN |
| 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 SAI32X175SN 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 SAI32X175SN 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 SI32X175SN
| 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 SI32X175SN Is Used
Small Part Ejection
Uses the 402 N push force at 0.5 MPa to reliably knock small machined components out of a fixture on an assembly line.
Package Diverting
Actuates a lightweight routing gate to sort small parcels, benefiting from the 175mm stroke and 30-800 mm/s speed range.
Clamp Actuation
Drives low-force secondary clamps on a machining cell, where the 20 kg vertical lift margin safely secures workpieces.
Replacing the Airtac SI32 Standard Air Cylinder SI32X175SN with the SAI32X175SN
To replace the SI32X175SN, order the SAI32X175SN. Confirm the ISO 15552 mounting interface, the 32mm bore, 175mm stroke, G1/8 port (PT/G/NPT thread options), and the -S magnet for current AirTAC switches. If you need more force, the neighbouring 40mm bore yields 628 N push at 0.5 MPa; if less is required, check smaller custom profiles. Because the stroke is under 300mm, side-load rod-bending risks are minimal, but always guide the load. A plain cylinder drifts on air loss—the cushion only decelerates—so for load holding use an external pilot check valve or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32X175SN
- ✓ 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 SI32X175SN FAQ
Yes, the SI32X175SN is discontinued. The direct replacement is the SAI32X175SN. It shares the same ISO 15552 mounting interface, 32mm bore, 175mm stroke, output force, and G1/8 port, fitting existing fixtures perfectly.
The 32mm bore uses a G1/8 port. At 0.5 MPa it pushes 402 N and pulls 345 N. At 0.7 MPa push is 563 N, and at 0.9 MPa it is 724 N. The theoretical maximum force is 82 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32X175SN
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X175SN replacement — usually within 7-8 hours.