This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAI32BX500 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAI32BX500 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 SI32BX500
The AirTAC Airtac SI32 Standard Air Cylinder SI32BX500 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 SAI32BX500, 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 → SAI32BX500
About the Airtac SI32 Standard Air Cylinder SI32BX500
The AirTAC SI32BX500 is a discontinued double-acting ISO 15552 profile cylinder with a 32 mm bore, 500 mm stroke, and SUS304 stainless steel rod. Delivering 402 N push at 0.5 MPa, it is replaced by the SAI32BX500 drop-in. This current-production SAI retains the G1/8 port and M10x1.25 thread, fitting existing fixtures perfectly.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure. For this bore, a safe working load is roughly 241 N, or a 20 kg vertical lift with a 2:1 margin. Note this SKU lacks a magnet, so it cannot take a sensor. For held loads, explore the SAIL or BSAI lock variants.
Airtac SI32 Standard Air Cylinder SI32BX500 Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32BX500 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32BX500 |
| 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 SAI32BX500 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 SAI32BX500 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 SI32BX500
| 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 SI32BX500 Is Used
Diverting Mechanisms
Drives lightweight routing gates on packaging lines where the 402 N push force at 0.5 MPa easily overcomes friction.
Stainless Rod Actuation
The SUS304 rod excels in mildly corrosive washdown environments, pushing small jigs over the 500 mm travel distance.
Compact Ejection
Uses the 20 kg vertical lift capacity to eject small parts from machining centers, guided externally to prevent rod bending.
Replacing the Airtac SI32 Standard Air Cylinder SI32BX500 with the SAI32BX500
To replace the SI32BX500, order the SAI32BX500. Confirm the ISO 15552 mounting interface, 32 mm bore, 500 mm stroke, G1/8 port, and your specific mounting accessory. Because this SKU has no -S magnet, it cannot accept CS1-B/DS1-B sensors; order a magnet-equipped SAI if position detection is needed. At 0.5 MPa, the 32 mm bore yields 402 N push and 345 N pull; sizing down is not an option, while sizing up to 40 mm provides 628 N push. For the 500 mm stroke, use external guides to prevent rod bending and side-load wear. A plain cylinder drifts on air loss; use an external rod lock or pilot check valve for load holding, or specify a SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32BX500
- ✓ 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 SI32BX500 FAQ
Yes, the SI32BX500 is discontinued. The exact drop-in replacement is the SAI32BX500. It is dimensionally interchangeable per ISO 15552, matching the 32 mm bore, 500 mm stroke, G1/8 port, and mounting interface, so it drops directly into existing fixtures.
This double-acting 32 mm bore cylinder features a G1/8 port. It delivers 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 force of 82 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
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