This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the drop-in replacement SAI32BX300, with the same bore, stroke, output force, port and mounting, so it fits the same application. 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 SI32BX300
The AirTAC Airtac SI32 Standard Air Cylinder SI32BX300 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 300mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAI32BX300, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke300 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32BX300
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SI32 Standard Air Cylinder SI32BX300
The AirTAC SI32BX300 is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore, 300mm stroke, SUS304 stainless rod, and 402N push force at 0.5 MPa. It is replaced by the SAI32BX300 drop-in.
The SAI32BX300 retains the exact G1/8 port, M10x1.25 thread, and interface, but adds an upgraded two Y-shaped one-way piston seal. Note this no-magnet SKU cannot take a sensor. Safe working load is ~241N, lifting ~20kg vertically.
Airtac SI32 Standard Air Cylinder SI32BX300 Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32BX300 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32BX300 |
| Bore size | Ø32 mm |
| Stroke | 300 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 SAI32BX300 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 SAI32BX300 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 SI32BX300
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×300 | 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 SI32BX300 Is Used
Lab Automation
Ideal for compact testing rigs requiring a corrosion-resistant SUS304 rod, providing precise 402N linear motion in controlled environments.
Packaging Diverters
Handles light product routing tasks efficiently, offering a safe working load of roughly 241N for smooth package manipulation on the line.
Washdown Gates
The stainless steel rod option excels in moisture-prone stations, actuating 300mm stroke gates reliably without succumbing to ambient corrosion.
Replacing the Airtac SI32 Standard Air Cylinder SI32BX300 with the SAI32BX300
To replace the SI32BX300, order the SAI32BX300. Confirm the ISO 15552 mounting interface, 32mm bore, 300mm stroke, G1/8 port (PT/G/NPT), and mounting accessory. Because this is a no-S SKU, it cannot accept a CS1-B/DS1-B sensor. For higher force, the neighbouring 40mm bore yields 628N push at 0.5 MPa; for lighter duties, consider smaller bores. 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. At 300mm stroke, use external guides to prevent rod bending and side-load wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32BX300
- ✓ 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 SI32BX300 FAQ
Yes, the SI32BX300 is discontinued. The exact drop-in replacement is the SAI32BX300. It shares the identical ISO 15552 mounting interface, 32mm bore, 300mm stroke, force, G1/8 port, and SUS304 rod material, fitting existing fixtures perfectly.
The 32mm bore features a G1/8 air port and M10x1.25 rod thread. It delivers 402N push and 345N pull at 0.5 MPa, 563N push at 0.7 MPa, 724N push at 0.9 MPa, and a theoretical max force of 82 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32BX300
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32BX300 replacement — usually within 7-8 hours.