This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X370S, 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 SI32X370S
The AirTAC SI32 Standard Air Cylinder SI32X370S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 370mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X370S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke370 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32X370S
- 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 SI32X370S
The AirTAC SI32X370S is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 370mm stroke. It delivers 402N push and 345N pull at 0.5MPa via a G1/8 port. AirTAC replaced this legacy unit with the SAI32X370S, a direct upgrade sharing the exact ISO 15552 mounting interface, bore, stroke, output force, and accessories.
The SAI replacement upgrades the piston seal to two Y-shaped one-way elements for low start-up pressure and long life. The SAI family also introduces SAIL, SAIF, and BSAI lock variants absent from the SI line, and accepts current AirTAC switches for its magnetic piston.
Airtac SI32 Standard Air Cylinder SI32X370S Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X370S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X370S |
| Bore size | Ø32 mm |
| Stroke | 370 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 SAI32X370S 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 SAI32X370S 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 SI32X370S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×370 | 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 SI32X370S Is Used
Component Ejection
Ideal for pushing small machined parts out of a fixture using its 402N push force at 0.5MPa over a 370mm reach.
Package Diverting
Sort light cartons on a packaging line where the 20kg vertical lift capacity and long stroke provide reliable lateral movement.
Light Tray Handling
Shift empty storage trays between zones with the magnetic piston enabling position confirmation via reed switches.
Replacing the Airtac SI32 Standard Air Cylinder SI32X370S with the SAI32X370S
To replace the SI32X370S, order the SAI32X370S and confirm the ISO 15552 mounting interface, 32mm bore, 370mm stroke, G1/8 port (PT/G/NPT thread options), and the -S magnet. For sizing alternatives, dropping to a smaller bore reduces force, while stepping up increases it; at 0.5MPa this 32mm bore yields 402N push. Because the 370mm stroke exceeds 300mm, use an external guide to prevent rod bending and side-load damage. A plain cylinder does not hold load on air loss—the cushion only decelerates—so for suspended loads use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32X370S
- ✓ 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 SI32X370S FAQ
Yes, the SI32X370S is discontinued. The direct replacement is the SAI32X370S. It shares the same ISO 15552 mounting interface, 32mm bore, 370mm stroke, output force, and G1/8 port, fitting existing fixtures perfectly while upgrading the piston seal.
The 32mm bore provides 402N push and 345N pull at 0.5MPa, 563N push at 0.7MPa, 724N push at 0.9MPa, and a theoretical max of 82kgf at 1.0MPa. Operating speed is 30-800mm/s, with a 27mm adjustable air cushion at both ends.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32X370S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X370S replacement — usually within 7-8 hours.