This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAI32BX90 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAI32BX90 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 SI32BX90
The AirTAC Airtac SI32 Standard Air Cylinder SI32BX90 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 90mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAI32BX90, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke90 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32BX90
About the Airtac SI32 Standard Air Cylinder SI32BX90
The AirTAC SI32BX90 is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 90mm stroke. Featuring a SUS304 stainless steel rod and G1/8 port, it delivers 402N push force at 0.5MPa. The drop-in replacement is the SAI32BX90, which retains the exact ISO 15552 mounting interface, bore, stroke, force, port and accessories.
This SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. Because this specific SI32BX90 SKU lacks a magnet (-S), it cannot accept a position switch. For safe sizing, expect a working load near 241N (60% of the 402N push force) and a vertical lift capacity around 20kg with a 2:1 margin.
Airtac SI32 Standard Air Cylinder SI32BX90 Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32BX90 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32BX90 |
| Bore size | Ø32 mm |
| Stroke | 90 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 SAI32BX90 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 SAI32BX90 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 SI32BX90
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×90 | 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 SI32BX90 Is Used
Stainless Rod Clamping
Ideal for small fixture clamping in washdown areas, utilizing the SUS304 rod for corrosion resistance and 402N push force at 0.5 MPa.
Light Part Ejection
Provides reliable ejection of lightweight plastic or aluminum components using a 90mm stroke and a safe working load of 241N.
Compact Gate Diverting
Drives small pneumatic gates or diverters in packaging lines where the 32mm bore footprint and G1/8 port fit tight spaces.
Replacing the Airtac SI32 Standard Air Cylinder SI32BX90 with the SAI32BX90
To replace the SI32BX90, order the SAI32BX90. Verify the ISO 15552 mounting interface, 32mm bore, 90mm stroke, G1/8 port (PT/G/NPT thread) and your mounting accessory. This SKU has a SUS304 stainless rod and no magnet, meaning it cannot support legacy CS1-B/DS1-B sensors; if sensing is needed, select an SAI model with the -S suffix. At 0.5MPa the 32mm bore yields 402N push and 345N pull; sizing down is not an option, while sizing up to 40mm provides 628N push. Note that a plain cylinder drifts on air loss—the cushion only decelerates—so use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant for load holding. The 90mm stroke is well within limits, but for any stroke >=300mm add a guide to prevent rod bending.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32BX90
- ✓ 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 SI32BX90 FAQ
Yes, the SI32BX90 is discontinued. The exact drop-in replacement is the SAI32BX90. It is dimensionally interchangeable per ISO 15552, keeping the same 32mm bore, 90mm stroke, 402N force, G1/8 port and mounting interface.
The 32mm bore features a G1/8 port and delivers a push force of 402N and pull force of 345N at 0.5MPa, 563N push at 0.7MPa, 724N push at 0.9MPa, and a theoretical maximum of 82kgf at 1.0MPa.
Request a Quote for the SAI32BX90
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32BX90 replacement — usually within 7-8 hours.