This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAI32BX950S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAI32BX950S 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 SI32BX950S
The AirTAC Airtac SI32 Standard Air Cylinder SI32BX950S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 950mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAI32BX950S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke950 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32BX950S
About the Airtac SI32 Standard Air Cylinder SI32BX950S
The AirTAC SI32BX950S is a discontinued double-acting ISO 15552 profile cylinder with a 32 mm bore, 950 mm stroke, and a SUS304 stainless steel rod. Delivering 402 N push force at 0.5 MPa via a G1/8 port, it is replaced by the drop-in SAI32BX950S. This upgrade retains identical mounting and force but adds a two Y-shaped one-way piston seal for lower start-up pressure. The safe working load is roughly 241 N, allowing a 20 kg vertical lift with a 2:1 margin.
Because the original SI is end-of-life, buyers should order the SAI32BX950S. The SAI family introduces lock and valve variants the SI lacked, including SAIL, BSAI, and SAIF (bores 32-100). Your existing CS1-B/DS1-B legacy sensors fit this -S magnet model, though SAI uses current AirTAC switches. Note that a 950 mm stroke requires external guides to prevent rod bending.
Airtac SI32 Standard Air Cylinder SI32BX950S Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32BX950S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32BX950S |
| Bore size | Ø32 mm |
| Stroke | 950 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 SAI32BX950S 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 SAI32BX950S 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 SI32BX950S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×950 | 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 SI32BX950S Is Used
Long-Stroke Diversion
Pushes light packages across a 950 mm conveyor lane using the 402 N push force, with the SUS304 rod resisting washdown corrosion.
Elevator Stage Lift
Raises a 20 kg vertical load with a 2:1 safety margin, relying on external linear guides to stabilize the extended 950 mm stroke.
Lab Sample Extraction
Extracts sample racks from testing chambers up to 950 mm deep, where the Viton H seal option handles 0-150 C ambient heat.
Replacing the Airtac SI32 Standard Air Cylinder SI32BX950S with the SAI32BX950S
To replace the SI32BX950S, order the SAI32BX950S, confirming the ISO 15552 interface, 32 mm bore, 950 mm stroke, G1/8 port, and SUS304 rod. The SAI drops into existing fixtures seamlessly. If you need less force, a 25 mm bore offers lower thrust; if more, a 40 mm bore provides 628 N push at 0.5 MPa. For load holding on air loss, note that plain cylinders drift—use an external pilot check valve or the SAIL/BSAI lock variants. At 950 mm, prevent side-load rod bending with an external guide. The -S magnet works with CS1-B/DS1-B switches.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32BX950S
- ✓ 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 SI32BX950S FAQ
Yes, the SI32BX950S is discontinued. The exact drop-in replacement is the SAI32BX950S. It shares the same ISO 15552 mounting interface, 32 mm bore, 950 mm stroke, G1/8 port, and output force, but features an upgraded two Y-shaped one-way piston seal for lower start-up pressure and longer life.
The 32 mm bore uses a G1/8 port. It generates 402 N push and 345 N pull at 0.5 MPa, 563 N push at 0.7 MPa, 724 N push at 0.9 MPa, and a theoretical maximum of 82 kgf at 1.0 MPa. The safe working load is approximately 241 N.
Related AirTAC SAI Cylinders
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