This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X165S, 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 SI32X165S
The AirTAC SI32 Standard Air Cylinder SI32X165S 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 SAI32X165S, 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 → SAI32X165S
- 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 SI32X165S
The AirTAC SI32X165S is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 165mm stroke. Delivering 402N push force at 0.5MPa via a G1/8 port, it is replaced by the SAI32X165S. This direct successor shares the exact ISO 15552 mounting interface, bore, stroke, output force and accessories, fitting existing fixtures perfectly.
The SAI upgrade features a new piston seal with two Y-shaped one-way elements for low start-up pressure and long life. It also introduces SAIL, SAIF and BSAI lock variants absent in the SI line. The -S suffix denotes a piston magnet for CS1-B/DS1-B switches; the SAI uses current AirTAC switches.
Airtac SI32 Standard Air Cylinder SI32X165S Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X165S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X165S |
| 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 SAI32X165S 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 SAI32X165S 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 SI32X165S
| 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 SI32X165S Is Used
Small Part Ejection
Uses the 402N push force at 0.5MPa to reliably push lightweight machined components out of a fixture on an automated assembly line.
Clamp Actuation
Provides secure secondary clamping of small workpieces in a machining cell, with the 165mm stroke offering precise reach into the work zone.
Package Diverting
Actuates a diverter arm on a packaging conveyor, where the 20kg vertical lift capacity and compact 32mm profile fit tight transfer spaces.
Replacing the Airtac SI32 Standard Air Cylinder SI32X165S with the SAI32X165S
To replace the SI32X165S, order the SAI32X165S. Confirm the ISO 15552 interface, 32mm bore, 165mm stroke, G1/8 port (PT/G/NPT thread options) and mounting accessory. The -S magnet equates to legacy CS1-B/DS1-B sensors. Sizing both ways: a 40mm bore yields 628N push at 0.5MPa, while dropping to 0.5MPa on this 32mm bore provides 402N. A plain cylinder drifts on air loss as the cushion only decelerates; for load holding use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant. At 165mm stroke, side-load is minimal, but ensure guide alignment to prevent rod bending.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32X165S
- ✓ 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 SI32X165S FAQ
Yes, the AirTAC SI32X165S is discontinued. The direct replacement is the SAI32X165S. It is dimensionally interchangeable per ISO 15552, matching the 32mm bore, 165mm stroke, G1/8 port, output force and mounting interface.
The 32mm bore uses a G1/8 port. Force output is 402N push and 345N pull at 0.5MPa, 563N push at 0.7MPa, 724N push at 0.9MPa, with a theoretical max of 82kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32X165S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X165S replacement — usually within 7-8 hours.