This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32AX240, 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 SI32AX240
The AirTAC SI32 Standard Air Cylinder SI32AX240 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 240mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32AX240, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke240 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32AX240
- 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 SI32AX240
The AirTAC SI32AX240 is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 240mm stroke. Delivering 402N push force at 0.5MPa via a G1/8 port, it is replaced by the SAI32AX240. This direct successor matches the exact interface, bore, stroke, force and mounting hardware. The SAI features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life.
Because this SKU lacks the -S magnet, it cannot accept a CS1-B/DS1-B sensor. For load holding, note that standard air cushions only decelerate; a pilot check valve or SAIL lock variant is required to prevent drift.
Airtac SI32 Standard Air Cylinder SI32AX240 Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32AX240 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32AX240 |
| Bore size | Ø32 mm |
| Stroke | 240 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 SAI32AX240 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 SAI32AX240 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI32 Standard Air Cylinder SI32AX240
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×240 | 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 SI32AX240 Is Used
Small Part Ejection
Uses the 402N push force at 0.5MPa to reliably push lightweight molded parts out of a machining fixture.
Package Diverting
Actuates a routing gate on a packaging line, where the 240mm stroke provides ample travel for sorting boxes.
Clamp Actuation
Secures thin workpieces in a welding jig, taking advantage of the compact 32mm ISO 15552 profile barrel.
Replacing the Airtac SI32 Standard Air Cylinder SI32AX240 with the SAI32AX240
To replace the SI32AX240, order the SAI32AX240. Verify the ISO 15552 mounting interface, 32mm bore, 240mm stroke, G1/8 port (PT/G/NPT thread) and mounting accessories. This SKU has no magnet, so sensing is impossible; if position detection is needed, select an -S SAI model and current AirTAC switches. For sizing, the 32mm bore yields 402N push at 0.5MPa; dropping to a 25mm bore reduces force, while a 40mm bore offers 628N. Since the 240mm stroke exceeds 300mm, ensure guide rails to prevent rod bending and side-load damage. For suspended loads, add an external rod lock or pilot check valve, as cushions only decelerate.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32AX240
- ✓ 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 SI32AX240 FAQ
Yes, the SI32AX240 is discontinued. The direct replacement is the AirTAC SAI32AX240. It is dimensionally interchangeable per ISO 15552, retaining the same 32mm bore, 240mm stroke, G1/8 port, output force and mounting interface. You simply order the SAI equivalent for your existing fixtures.
The 32mm bore uses a G1/8 air port. The thrust figures are: 402N push and 345N pull at 0.5MPa, 563N push at 0.7MPa, 724N push at 0.9MPa, and a theoretical maximum force of 82kgf at 1.0MPa. It operates at speeds of 30-800mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32AX240
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32AX240 replacement — usually within 7-8 hours.