This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the drop-in replacement SAI32BX30, 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 SI32BX30
The AirTAC Airtac SI32 Standard Air Cylinder SI32BX30 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 30mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAI32BX30, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke30 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32BX30
- 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 SI32BX30
The AirTAC SI32BX30 is a discontinued double-acting ISO 15552 profile cylinder with a 32 mm bore and 30 mm stroke. It delivers 402 N push force at 0.5 MPa via a G1/8 port. AirTAC replaced this legacy unit with the SAI32BX30, a true drop-in upgrade retaining the exact ISO 15552 mounting interface, output force, and 30 mm stroke for existing fixtures.
The SAI upgrade features a refined piston seal using two Y-shaped one-way elements for low start-up pressure and extended life. This specific SKU lacks a magnet (-S), so it cannot accept CS1-B/DS1-B sensors. The B suffix denotes a SUS304 stainless piston rod for corrosion resistance. For sizing, the safe working load is roughly 241 N (60% of the 0.5 MPa push), equating to a 20 kg vertical lift with a 2:1 margin.
Airtac SI32 Standard Air Cylinder SI32BX30 Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32BX30 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32BX30 |
| Bore size | Ø32 mm |
| Stroke | 30 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 SAI32BX30 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 SAI32BX30 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 SI32BX30
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×30 | 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 SI32BX30 Is Used
Compact Clamping
Applies 402 N of clamping force at 0.5 MPa for securing small machined components during milling or drilling operations.
Short Stroke Ejection
Uses the 30 mm stroke to push lightweight finished parts out of a fixture quickly within a tight automation cell.
Lab Positioning
Moves sample trays or testing probes with a 241 N safe working load, leveraging the SUS304 rod against moisture.
Replacing the Airtac SI32 Standard Air Cylinder SI32BX30 with the SAI32BX30
To replace the SI32BX30, order the SAI32BX30. Verify your ISO 15552 mounting accessory (LB, FA, TC, etc.), the G1/8 air port, and the M10x1.25 rod thread. Because this SKU has no magnet, you cannot mount position sensors; if sensing is required, switch to an SAI32X30S model and use current AirTAC switches. Sizing both ways: this 32 mm bore yields 402 N push at 0.5 MPa, while a neighbouring 40 mm bore provides 628 N. If you need to hold a load vertically without live air, note that the air cushion only decelerates; it does not lock. Use an external pilot check valve, or explore the SAIL or BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32BX30
- ✓ 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 SI32BX30 FAQ
Yes, the SI32BX30 is discontinued. The exact drop-in replacement is the SAI32BX30. It features the same ISO 15552 mounting interface, 32 mm bore, 30 mm stroke, force, and G1/8 port, fitting directly into existing fixtures.
This double-acting cylinder 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.
Request a Quote for the SAI32BX30
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32BX30 replacement — usually within 7-8 hours.