This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAI32BX475S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAI32BX475S in place of this model. 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 SI32BX475S
The AirTAC Airtac SI32 Standard Air Cylinder SI32BX475S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 475mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAI32BX475S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke475 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32BX475S
About the Airtac SI32 Standard Air Cylinder SI32BX475S
The AirTAC SI32BX475S is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 475mm stroke. It delivers 402N push at 0.5MPa via a G1/8 port. The exact drop-in replacement is the SAI32BX475S, matching the interface, force, and mounting.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. This unit includes a SUS304 stainless rod (-B) and a magnet (-S) for CS1-B/DS1-B switches. Safe working load is ~241N, allowing a ~20kg vertical lift with a 2:1 margin.
Airtac SI32 Standard Air Cylinder SI32BX475S Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32BX475S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32BX475S |
| Bore size | Ø32 mm |
| Stroke | 475 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 SAI32BX475S 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 SAI32BX475S produces the same force from the same bore — a true drop-in on output. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI32 Standard Air Cylinder SI32BX475S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×475 | 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 SI32BX475S Is Used
Small Part Ejection
Uses the 402N push force at 0.5MPa to reliably push light machined components out of a fixture on an automated line.
Package Diverting
The 475mm stroke provides the extended reach needed to actuate a diverting gate for small parcels on a sorting conveyor.
Lab Test Positioning
The SUS304 stainless rod offers corrosion resistance for moving sample trays in humid or chemically exposed laboratory environments.
Replacing the Airtac SI32 Standard Air Cylinder SI32BX475S with the SAI32BX475S
To replace the SI32BX475S, order the SAI32BX475S. Confirm the ISO 15552 mounting interface, 475mm stroke, G1/8 port, and mounting accessory. The -S magnet enables current AirTAC switches, and the -B rod is SUS304 stainless. At 475mm, use external guides to prevent rod bending and side loads. Output is 402N push at 0.5MPa; if more force is needed, consider the 40mm bore (628N). For load holding on air loss, use an external rod lock or pilot check valve, as cushions only decelerate. The SAI family adds SAIL, SAIF, and BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32BX475S
- ✓ 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 SI32BX475S FAQ
Yes, the SI32BX475S is discontinued. The exact drop-in replacement is the SAI32BX475S. It is dimensionally interchangeable per ISO 15552, retaining the same 32mm bore, 475mm stroke, G1/8 port, and mounting interface.
The 32mm bore uses a G1/8 port. It generates 402N push and 345N pull at 0.5MPa, 563N push at 0.7MPa, 724N push at 0.9MPa, and a theoretical maximum force of 82kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32BX475S
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