This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X305S, 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 SI32X305S
The AirTAC SI32 Standard Air Cylinder SI32X305S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 305mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X305S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke305 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32X305S
- 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 SI32X305S
The AirTAC SI32X305S is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 305mm stroke. Delivering 402N push force at 0.5MPa via a G1/8 port, it is replaced by the SAI32X305S. This direct successor retains the exact bore, stroke, output force, port and mounting interface for existing fixtures.
The SAI upgrade features a new piston seal with two Y-shaped one-way elements for low start-up pressure and long life. The SI-S magnet works with legacy CS1-B/DS1-B sensors, while the SAI family adds SAIL lock and SAIF valve variants the original lacked.
Airtac SI32 Standard Air Cylinder SI32X305S Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X305S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X305S |
| Bore size | Ø32 mm |
| Stroke | 305 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 SAI32X305S 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 SAI32X305S 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 SI32X305S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×305 | 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 SI32X305S Is Used
Package Diverting
Actuates a routing flap or pusher arm on a packaging line, where the 20kg vertical lift capacity and 32mm bore provide compact, responsive motion control.
Pallet Tagging
Extends a pneumatic label applicator 305mm to reach pallet faces, benefiting from the ISO 15552 profile barrel for easy sensor mounting along the stroke.
Replacing the Airtac SI32 Standard Air Cylinder SI32X305S with the SAI32X305S
To replace the SI32X305S, order the SAI32X305S, confirming the ISO 15552 mounting interface, 32mm bore, 305mm stroke, G1/8 port (PT/G/NPT thread options) and the -S magnet for current AirTAC switches. If you need more force, the neighbouring 40mm bore offers 628N push at 0.5MPa; if less is acceptable, dropping pressure reduces output accordingly. Because the 305mm stroke is relatively long, use an external guide to prevent rod bending and side-load damage. A plain cylinder drifts on air loss—the cushion only decelerates—so use a pilot check valve or the SAIL/BSAI lock variant to hold loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32X305S
- ✓ 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 SI32X305S FAQ
Yes, the SI32X305S is discontinued. The direct replacement is the SAI32X305S. It is dimensionally interchangeable per the ISO 15552 mounting interface, retaining the same 32mm bore, 305mm stroke, output force, G1/8 port and mounting accessories.
The 32mm bore features a G1/8 air port and provides 402N push / 345N pull at 0.5MPa, 563N push at 0.7MPa, 724N push at 0.9MPa, and a theoretical maximum of 82kgf at 1.0MPa. It operates at 30-800mm/s with a 27mm adjustable air cushion at each end.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32X305S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X305S replacement — usually within 7-8 hours.