This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X485S, 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 SI32X485S
The AirTAC SI32 Standard Air Cylinder SI32X485S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 485mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X485S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke485 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32X485S
- 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 SI32X485S
The AirTAC SI32X485S is a discontinued double-acting ISO 15552 profile cylinder with a 32 mm bore and 485 mm stroke. It delivers 402 N push at 0.5 MPa through a G1/8 port. AirTAC replaced this legacy unit with the SAI32X485S, a direct sharing the same interface, force, and mounting.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure and long life. It also adds SAIL, SAIF, and BSAI variants the SI lacked. Your -S magnet works with legacy CS1-B/DS1-B sensors.
Airtac SI32 Standard Air Cylinder SI32X485S Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X485S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X485S |
| Bore size | Ø32 mm |
| Stroke | 485 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 SAI32X485S 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 SAI32X485S 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 SI32X485S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×485 | 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 SI32X485S Is Used
Component Ejection
Uses the 402 N push force to eject small machined parts from a fixture, relying on the 485 mm stroke to clear the work area entirely.
Light Transfer
Actuates a lightweight routing gate on a packaging line, where the 20 kg vertical lift capacity easily moves the mechanism.
Bin Pushing
Indexes small tote bins along an accumulator track, benefiting from the adjustable 27 mm cushions to soften end-of-stroke impacts.
Replacing the Airtac SI32 Standard Air Cylinder SI32X485S with the SAI32X485S
To replace the SI32X485S, order the SAI32X485S. Verify your ISO 15552 mounting hardware (LB, FA, TC, etc.), the G1/8 port, and the M10x1.25 rod thread. The -S magnet enables CS1-B/DS1-B switches; the SAI family uses current AirTAC sensors. At 485 mm, prevent rod bending by adding external guides to manage side loads. If dropping to a 40 mm bore increases force (628 N push @0.5 MPa), ensure your fixtures handle the extra thrust. For load holding on air loss, note that cushions only decelerate; use an external pilot check valve or the SAIL lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32X485S
- ✓ 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 SI32X485S FAQ
Yes, the SI32X485S is discontinued. The direct replacement is the SAI32X485S. It is dimensionally interchangeable per ISO 15552, matching the 32 mm bore, 485 mm stroke, G1/8 port, and mounting accessories.
The 32 mm bore provides 402 N push and 345 N pull at 0.5 MPa, 563 N push at 0.7 MPa, and a theoretical max of 82 kgf at 1.0 MPa. Operating speed is 30-800 mm/s. It uses a G1/8 port and M10x1.25 rod thread.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32X485S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X485S replacement — usually within 7-8 hours.