This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X310S, 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 SI32X310S
The AirTAC SI32 Standard Air Cylinder SI32X310S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 310mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X310S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke310 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32X310S
- 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 SI32X310S
The AirTAC SI32X310S is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 310mm stroke. Delivering 402N push force at 0.5MPa via a G1/8 port, it is replaced by the SAI32X310S. This direct upgrade shares identical mounting, force, and dimensions.
The SAI features an upgraded piston seal with two Y-shaped elements for low start-up pressure. The SAI family adds SAIL, SAIF, and BSAI variants the SI lacked. Your -S magnet works with CS1-B/DS1-B switches.
Airtac SI32 Standard Air Cylinder SI32X310S Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X310S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X310S |
| Bore size | Ø32 mm |
| Stroke | 310 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 SAI32X310S 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 SAI32X310S 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 SI32X310S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×310 | 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 SI32X310S Is Used
Small Part Ejection
Uses the 402N push force to eject light machined components from a fixture over the 310mm travel distance.
Package Diverting
Actuates a routing gate on a packaging line, where the 20kg vertical lift capacity handles light mechanism weight.
Bin Push-Off
Pushes sorted items from a staging shelf into a dispatch chute using the extended 310mm stroke.
Replacing the Airtac SI32 Standard Air Cylinder SI32X310S with the SAI32X310S
To replace the SI32X310S, order the SAI32X310S. Confirm the ISO 15552 interface, 32mm bore, 310mm stroke, G1/8 port, and mounting accessory. The -S suffix means your piston magnet is present for CS1-B/DS1-B sensors. If you need more force, the 40mm bore yields 628N push at 0.5MPa. Because 310mm exceeds 300mm, use external guides to prevent rod bending and side-load wear. A plain cylinder drifts without air; for load holding, use an external pilot check valve or the SAIL lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32X310S
- ✓ 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 SI32X310S FAQ
Yes, the SI32X310S is discontinued. The direct replacement is the AirTAC SAI32X310S. It is dimensionally interchangeable per ISO 15552, matching the 32mm bore, 310mm stroke, G1/8 port, and mounting interface.
The 32mm bore features a G1/8 port and provides 402N push / 345N pull at 0.5MPa, 563N push at 0.7MPa, 724N push at 0.9MPa, and a theoretical max of 82kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32X310S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X310S replacement — usually within 7-8 hours.