This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAI32BX500S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAI32BX500S 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 SI32BX500S
The AirTAC Airtac SI32 Standard Air Cylinder SI32BX500S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 500mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAI32BX500S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke500 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32BX500S
About the Airtac SI32 Standard Air Cylinder SI32BX500S
The AirTAC SI32BX500S is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore, 500mm stroke, and a SUS304 stainless steel rod. Delivering 402N push force at 0.5MPa, it is replaced by the SAI32BX500S. This drop-in upgrade shares the exact ISO 15552 mounting interface, G1/8 port, and stroke, 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. For this bore, safe working load is roughly 241N, and vertical lift is about 20kg with a 2:1 margin. The -S magnet works with legacy CS1-B/DS1-B sensors, while the SAI family adds SAIL, SAIF, and BSAI lock variants the SI lacked.
Airtac SI32 Standard Air Cylinder SI32BX500S Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32BX500S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32BX500S |
| Bore size | Ø32 mm |
| Stroke | 500 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 SAI32BX500S 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 SAI32BX500S 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 SI32BX500S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×500 | 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 SI32BX500S Is Used
Diverting Small Parts
Ideal for routing light packages on a conveyor line using the 500mm stroke and 32mm bore to push items cleanly at 402N force.
Stainless Rod Washdown
The SUS304 piston rod excels in humid or lightly corrosive environments, handling material ejection tasks where carbon steel would rust.
Sensor Positioning
The integrated magnet allows CS1-B/DS1-B switches to confirm stroke endpoints for precise 500mm linear positioning of small tooling.
Replacing the Airtac SI32 Standard Air Cylinder SI32BX500S with the SAI32BX500S
To replace the SI32BX500S, order the SAI32BX500S. Verify the ISO 15552 mounting interface, 32mm bore, 500mm stroke, G1/8 port, and mounting accessory. The -B rod is SUS304 stainless steel, and the -S magnet supports CS1-B/DS1-B switches. At 0.5MPa it pushes 402N; if more force is needed, the 40mm bore gives 628N. For the 500mm stroke, use external guides to prevent rod bending and side loads. The cushion only decelerates; for load holding on air loss, use an external rod lock or pilot check valve, or specify the SAIL or BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32BX500S
- ✓ 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 SI32BX500S FAQ
Yes, the AirTAC SI32BX500S is discontinued. The exact drop-in replacement is the SAI32BX500S. It is dimensionally interchangeable per ISO 15552, matching the 32mm bore, 500mm stroke, G1/8 port, and mounting interface for a seamless fixture swap.
The 32mm bore has a G1/8 port. At 0.5MPa it pushes 402N and pulls 345N. At 0.7MPa push is 563N, and at 0.9MPa it is 724N. The theoretical maximum force is 82kgf at 1.0MPa.
Related AirTAC SAI Cylinders
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