This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X320, 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 SI32X320
The AirTAC SI32 Standard Air Cylinder SI32X320 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 320mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X320, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke320 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32X320
- 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 SI32X320
The AirTAC SI32X320 is a discontinued double-acting ISO 15552 profile cylinder with a 32 mm bore and 320 mm stroke. It delivers 402 N push force at 0.5 MPa through a G1/8 port. AirTAC replaced this legacy unit with the SAI32X320, a direct replacement retaining the exact ISO 15552 mounting interface, bore, stroke, output force, port size and mounting accessories.
The SAI upgrade features a modernized piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. Note this specific SKU lacks a magnet (-S) and cannot accept a sensor; the SI family used CS1-B/DS1-B switches, while the SAI family uses current AirTAC sensors.
Airtac SI32 Standard Air Cylinder SI32X320 Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X320 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X320 |
| Bore size | Ø32 mm |
| Stroke | 320 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 SAI32X320 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 SAI32X320 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 SI32X320
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×320 | 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 SI32X320 Is Used
Package Diverting
Deploys a 320 mm stroke to divert small cartons on a conveyor line, providing 402 N of push force at 0.5 MPa operating pressure.
Replacing the Airtac SI32 Standard Air Cylinder SI32X320 with the SAI32X320
To replace the SI32X320, order the SAI32X320. Confirm the ISO 15552 mounting interface (LB foot, FA/FB flange, CA/CB clevis, or TC trunnion), the G1/8 port thread (PT/G/NPT), and the M10x1.25 rod-end thread. Because this SKU lacks a magnet, it cannot support position sensing; if sensing is required, order the SAI32X320S instead. When sizing, consider neighbouring bores: a 40 mm bore offers 628 N push at 0.5 MPa if more force is needed, while the 32 mm is optimal for lighter loads. For this 320 mm stroke, use external guides to prevent rod bending and side-load damage. A plain cylinder does not hold load without live air; for load holding on air loss, use an external pilot check valve, rod lock, or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32X320
- ✓ 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 SI32X320 FAQ
Yes, the AirTAC SI32X320 is discontinued. The direct replacement is the SAI32X320. It shares the exact ISO 15552 mounting interface, 32 mm bore, 320 mm stroke, output force, G1/8 port and mounting accessories, fitting directly into existing fixtures.
This double-acting cylinder uses a G1/8 air 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 force of 82 kgf at 1.0 MPa. It operates at speeds of 30-800 mm/s.
Request a Quote for the SAI32X320
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X320 replacement — usually within 7-8 hours.