This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X133SFB, 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 SI32X133SFB
The AirTAC SI32 Standard Air Cylinder SI32X133SFB is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 133mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X133SFB, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke133 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32X133SFB
- 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 SI32X133SFB
The AirTAC SI32X133SFB is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 133mm stroke. It delivers 402N push force at 0.5MPa via a G1/8 port. The direct replacement is the SAI32X133SFB, matching the interface, force, and FB flange mounting.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. The SAI family also adds SAIL, SAIF, and BSAI lock variants the SI lacked. This -S SKU uses CS1-B/DS1-B sensors.
Airtac SI32 Standard Air Cylinder SI32X133SFB Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X133SFB |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X133SFB |
| Bore size | Ø32 mm |
| Stroke | 133 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 SAI32X133SFB 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 SAI32X133SFB 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 SI32X133SFB
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×133 | 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 SI32X133SFB Is Used
Small Part Clamping
Ideal for securing lightweight machined components during secondary milling or drilling operations with its 402N push force.
Package Diverting
Provides reliable actuation for routing small parcels or trays on automated packaging lines via the FB flange mount.
Electronic Assembly
Handles precise positioning of PCBs or small electronic modules where a compact 32mm bore and 133mm stroke are required.
Replacing the Airtac SI32 Standard Air Cylinder SI32X133SFB with the SAI32X133SFB
To replace the SI32X133SFB, order the SAI32X133SFB. Confirm the ISO 15552 FB flange mounting, 133mm stroke, G1/8 port, and the -S magnet for current AirTAC switches. If sizing up, a 40mm bore yields 628N push at 0.5MPa; sizing down is not standard below 32mm. For load holding, note that a plain cylinder drifts on air loss—the cushion only decelerates. Use an external pilot check valve or the SAIL/BSAI lock variant for secure holds. At 133mm stroke, side-load risks are low, but ensure rod alignment to prevent premature seal wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32X133SFB
- ✓ 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 SI32X133SFB FAQ
Yes, the SI32X133SFB is discontinued. The direct replacement is the SAI32X133SFB. It is dimensionally interchangeable per ISO 15552, retaining the same 32mm bore, 133mm stroke, G1/8 port, FB flange, and 402N force.
This 32mm bore double-acting cylinder features a G1/8 port and M10x1.25 rod thread. It delivers 402N push and 345N pull at 0.5MPa, 563N push at 0.7MPa, 724N push at 0.9MPa, and a theoretical max of 82kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32X133SFB
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X133SFB replacement — usually within 7-8 hours.