This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X150SFB, 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 SI32X150SFB
The AirTAC SI32 Standard Air Cylinder SI32X150SFB is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 150mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X150SFB, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke150 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32X150SFB
- 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 SI32X150SFB
The AirTAC SI32X150SFB is a discontinued double-acting ISO 15552 profile cylinder with a 32 mm bore and 150 mm stroke. It delivers 402 N push force at 0.5 MPa through a G1/8 port. AirTAC replaced this legacy unit with the SAI32X150SFB, a direct upgrade retaining the exact ISO 15552 mounting interface, FB flange, stroke and output force.
The SAI upgrade features a refined piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. For applications needing load holding, note the standard cushion only decelerates; explore the SAIL or BSAI lock variants.
Airtac SI32 Standard Air Cylinder SI32X150SFB Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X150SFB |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X150SFB |
| Bore size | Ø32 mm |
| Stroke | 150 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 SAI32X150SFB 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 SAI32X150SFB 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 SI32X150SFB
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×150 | 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 SI32X150SFB Is Used
Small Part Ejection
Ideal for pushing lightweight machined components out of a fixture using a safe 241 N working load.
Package Diverting
Provides reliable 150 mm stroke actuation to deflect small cartons on a packaging line at high speeds.
Clamp Actuation
Generates 402 N of push force at 0.5 MPa to secure low-mass workpieces during light assembly operations.
Replacing the Airtac SI32 Standard Air Cylinder SI32X150SFB with the SAI32X150SFB
To replace the SI32X150SFB, order the SAI32X150SFB. Confirm the ISO 15552 interface, 32 mm bore, 150 mm stroke, G1/8 port, and FB flange mounting. The -S magnet accommodates CS1-B/DS1-B legacy switches, while the SAI family uses current AirTAC sensors. Sizing both ways: a 40 mm bore offers 628 N push at 0.5 MPa, whereas dropping to a smaller bore reduces force. For this 150 mm stroke, ensure guide support to prevent rod bending and side loads. Remember, a plain cylinder drifts on air loss; for load holding use an external pilot check valve or the SAIL lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32X150SFB
- ✓ 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 SI32X150SFB FAQ
Yes, the SI32X150SFB is discontinued. The direct replacement is the SAI32X150SFB. It shares the same ISO 15552 mounting interface, 32 mm bore, 150 mm stroke, output force, G1/8 port and FB flange, fitting existing fixtures perfectly.
This 32 mm bore cylinder features a G1/8 port and M10x1.25 rod thread. 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 maximum of 82 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32X150SFB
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X150SFB replacement — usually within 7-8 hours.