This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAI32BX875S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAI32BX875S 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 SI32BX875S
The AirTAC Airtac SI32 Standard Air Cylinder SI32BX875S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 875mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAI32BX875S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke875 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32BX875S
About the Airtac SI32 Standard Air Cylinder SI32BX875S
The AirTAC SI32BX875S is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 875mm stroke. It delivers 402N push force at 0.5MPa, features a SUS304 stainless piston rod, and includes a magnet for CS1-B/DS1-B sensors. The exact drop-in replacement is the SAI32BX875S, matching the bore, stroke, force, G1/8 port, and ISO 15552 mounting interface.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. For practical sizing, the safe working load is roughly 241N (60% of the 402N push force), yielding a 20kg vertical lift capacity with a 2:1 safety margin. Because this is an 875mm stroke, external guides are recommended to prevent rod bending under side loads.
Airtac SI32 Standard Air Cylinder SI32BX875S Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32BX875S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32BX875S |
| Bore size | Ø32 mm |
| Stroke | 875 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 SAI32BX875S 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 SAI32BX875S 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 SI32BX875S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×875 | 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 SI32BX875S Is Used
Light-Part Ejection
Uses the 402N push force at 0.5MPa to eject small plastic parts from molding fixtures without damaging components.
Package Diverting
Actuates diverting gates along packaging lines, where the 241N safe working load easily moves lightweight cartons.
Vertical Lift Stops
Raises 20kg product stops on gravity conveyors, relying on the SUS304 rod for corrosion resistance in humid warehouses.
Replacing the Airtac SI32 Standard Air Cylinder SI32BX875S with the SAI32BX875S
To replace the SI32BX875S, order the SAI32BX875S. Verify the ISO 15552 mounting interface, the 875mm stroke, the G1/8 port, and the -S magnet for current AirTAC switches. If you need more force, the adjacent 40mm bore offers 628N at 0.5MPa; if less is required, check smaller profiles. For load holding on air loss, note that a plain cylinder drifts—the cushion only decelerates—so use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants. At 875mm, always use external guides to prevent rod-bending side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32BX875S
- ✓ 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 SI32BX875S FAQ
Yes, the SI32BX875S is discontinued. The exact drop-in replacement is the SAI32BX875S. It features the same ISO 15552 mounting interface, 32mm bore, 875mm stroke, force, and G1/8 port, fitting directly into existing fixtures.
It has a G1/8 port. The force ratings are: 402N push and 345N pull at 0.5MPa, 563N push at 0.7MPa, 724N push at 0.9MPa, and a theoretical maximum of 82kgf at 1.0MPa.
Related AirTAC SAI Cylinders
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