This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32AX115, 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 SI32AX115
The AirTAC SI32 Standard Air Cylinder SI32AX115 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 SAI32AX115, 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 → SAI32AX115
- 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 SI32AX115
The AirTAC SI32AX115 is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 115mm stroke. It delivers 402N push force at 0.5MPa via a G1/8 port. The direct replacement is the SAI32AX115, matching the interface, force, and mounting exactly.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure. This SKU has a SUS420J2 stainless rod (-A) but lacks a magnet, so it cannot take sensors. Note: 115mm is a non-standard stroke.
Airtac SI32 Standard Air Cylinder SI32AX115 Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32AX115 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32AX115 |
| 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 SAI32AX115 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 SAI32AX115 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 SI32AX115
| 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 SI32AX115 Is Used
Small Part Ejection
Uses the 402N push force at 0.5MPa to push lightweight plastic or aluminum parts out of machining fixtures.
Corrosive Sorting
The SUS420J2 stainless rod option is ideal for diverting components in damp or mildly corrosive washdown environments.
Gripping Stops
Acts as a compact 32mm bore stopper cylinder on assembly lines, decelerating loads using its 27mm adjustable cushion.
Replacing the Airtac SI32 Standard Air Cylinder SI32AX115 with the SAI32AX115
To replace this SI with the SAI32AX115, verify the ISO 15552 mounting interface, 32mm bore, 115mm stroke, G1/8 port, and SUS420J2 rod. Because 115mm is non-standard, expect longer lead times. If sizing up, a 40mm bore yields 628N push at 0.5MPa; if downsizing, consider your margins. This non-magnet SKU cannot accept CS1-B/DS1-B sensors. For stroke >=300mm, use guide rails to prevent rod bending. The plain cylinder does not hold load without air; use an external pilot check valve or the SAIL/BSAI lock variant for hold.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32AX115
- ✓ 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 SI32AX115 FAQ
Yes, the SI32AX115 is discontinued. The direct replacement is the SAI32AX115. It is dimensionally interchangeable per ISO 15552, keeping the same 32mm bore, 115mm stroke, G1/8 port, and mounting accessories.
This 32mm bore cylinder features a G1/8 port and M10x1.25 rod thread. It 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.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32AX115
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32AX115 replacement — usually within 7-8 hours.