This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAI32BX650 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAI32BX650 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 SI32BX650
The AirTAC Airtac SI32 Standard Air Cylinder SI32BX650 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 650mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAI32BX650, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke650 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32BX650
About the Airtac SI32 Standard Air Cylinder SI32BX650
The AirTAC SI32BX650 is a discontinued double-acting ISO 15552 profile cylinder with a 32 mm bore and 650 mm stroke. It features a SUS304 stainless piston rod (-B) and delivers 402 N push force at 0.5 MPa via a G1/8 port. AirTAC replaced this legacy unit with the SAI32BX650, a true drop-in upgrade retaining the exact interface, stroke, force and mounting.
The SAI upgrade introduces an advanced piston seal using two Y-shaped one-way elements for low start-up pressure and extended life. Because this specific SKU lacks the -S magnet, it cannot accept position sensors. For safe sizing, expect a working load near 241 N (60% of the 402 N push) or a 20 kg vertical lift with a 2:1 margin.
Airtac SI32 Standard Air Cylinder SI32BX650 Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32BX650 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32BX650 |
| Bore size | Ø32 mm |
| Stroke | 650 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 SAI32BX650 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 SAI32BX650 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 SI32BX650
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×650 | 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 SI32BX650 Is Used
Diverting Arms
Drives lightweight routing flappers on packaging lines, utilising the 650 mm reach to push cartons between parallel belts.
Lab Automation
Moves sample trays horizontally where the SUS304 rod prevents corrosion in humid or chemically wiped environments.
Low-Force Ejectors
Ejects small foam or cardboard inserts from forming stations without crushing the product.
Replacing the Airtac SI32 Standard Air Cylinder SI32BX650 with the SAI32BX650
To replace the SI32BX650, order the SAI32BX650 and confirm the ISO 15552 mounting interface, 650 mm stroke, G1/8 port and SUS304 rod (-B). This non-magnetic SKU cannot support switches, unlike the -S variants using CS1-B/DS1-B sensors. For load holding, note that a standard cylinder drifts on air loss; use an external pilot check valve or the SAIL/BSAI lock variants. Neighbouring bores are 40 mm (628 N push @0.5 MPa) or 25 mm if available. Given the 650 mm length, prevent rod bending by adding external guides to absorb side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32BX650
- ✓ 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 SI32BX650 FAQ
Yes, the SI32BX650 is discontinued. The exact drop-in replacement is the SAI32BX650, which shares the identical ISO 15552 mounting interface, 32 mm bore, 650 mm stroke, force and G1/8 port.
It delivers 402 N push and 345 N pull at 0.5 MPa, 563 N push at 0.7 MPa, and a maximum theoretical force of 82 kgf at 1.0 MPa. Operating speed is 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32BX650
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