This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X115S, 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 SI32X115S
The AirTAC SI32 Standard Air Cylinder SI32X115S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 115mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X115S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke115 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32X115S
- 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 SI32X115S
The AirTAC SI32X115S is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 115mm stroke. It delivers 402N push and 345N pull at 0.5MPa through a G1/8 port. The direct replacement is the SAI32X115S, which shares the exact mounting interface, force, and dimensions.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. The SAI family also adds SAIL, SAIF, and BSAI lock variants the SI lacked. Your -S suffix means a magnet for CS1-B/DS1-B sensors.
Airtac SI32 Standard Air Cylinder SI32X115S Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X115S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X115S |
| Bore size | Ø32 mm |
| Stroke | 115 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 SAI32X115S 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 SAI32X115S 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 SI32X115S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×115 | 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 SI32X115S Is Used
Small Part Ejection
Uses the 402N push force at 0.5MPa to reliably push lightweight machined components out of a fixture during automated machining cycles.
Package Diverting
The 115mm stroke provides the exact extension needed to actuate routing gates on conveyor belts for small parcel sorting lines.
Clamp Actuation
Ideal for secondary clamping operations where 345N pull force securely holds thin material profiles in place during light assembly tasks.
Replacing the Airtac SI32 Standard Air Cylinder SI32X115S with the SAI32X115S
To replace this SI32X115S, order the SAI32X115S. Confirm the ISO 15552 interface, 115mm stroke, G1/8 port (PT/G/NPT thread options), and your mounting accessory. The -S magnet enables CS1-B/DS1-B sensors. For sizing, a 40mm bore offers 628N push at 0.5MPa, while dropping to 25mm stroke reduces cycle time. This 115mm stroke exceeds 300mm? No, but for longer guides watch rod bending. A plain cylinder drifts on air loss; for load holding use the SAIL lock, BSAI clamp-lock, or a pilot check valve.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32X115S
- ✓ 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 SI32X115S FAQ
Yes, the SI32X115S is discontinued. The direct replacement is the AirTAC SAI32X115S. It is dimensionally interchangeable per ISO 15552, retaining the same 32mm bore, 115mm stroke, force, and G1/8 port for a seamless fixture swap.
This double-acting cylinder uses a G1/8 port. It provides 402N push and 345N pull at 0.5MPa, 563N push at 0.7MPa, 724N push at 0.9MPa, and a theoretical max force of 82kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32X115S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X115S replacement — usually within 7-8 hours.