This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X25H, 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 SI32X25H
The AirTAC SI32 Standard Air Cylinder SI32X25H is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 25mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X25H, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke25 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32X25H
- 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 SI32X25H
The AirTAC SI32X25H is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 25mm stroke. Built with an extruded aluminum barrel, it delivers 402N push force at 0.5MPa and features a G1/8 port. The direct replacement is the SAI32X25H, which retains the exact ISO 15552 mounting interface, bore, output force, and port size for seamless fixture integration.
This specific SKU lacks a magnet (-S), meaning it cannot accept legacy CS1-B/DS1-B sensors. The SAI upgrade introduces an advanced piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. The H designation indicates a Viton seal, raising the operating temperature range to 0-150 C.
Airtac SI32 Standard Air Cylinder SI32X25H Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X25H |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X25H |
| Bore size | Ø32 mm |
| Stroke | 25 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 SAI32X25H 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 SAI32X25H 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 SI32X25H
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×25 | 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 SI32X25H Is Used
Small Part Ejection
Ideal for pushing lightweight completed parts out of a machining fixture using a short 25mm stroke.
Clamp Actuation
Provides reliable 402N force to secure small workpieces in automated assembly tooling.
Gate Diversion
Drives small sorting flaps or gates in conveyor systems where a compact 32mm bore is required.
Replacing the Airtac SI32 Standard Air Cylinder SI32X25H with the SAI32X25H
To replace the discontinued SI32X25H, order the SAI32X25H. Verify your existing fixture's ISO 15552 mounting interface (LB, FA, TC, etc.), the 32mm bore, 25mm stroke, and G1/8 port. Because this SKU has no magnet, it cannot support position sensing; if sensing is required, select an SAI32X25H-S model and use current AirTAC switches. When sizing, note the 32mm bore yields 402N push at 0.5MPa, while a neighboring 40mm bore provides 628N. A plain cylinder does not hold load without live air; the cushion only decelerates. For load holding, consider the SAIL lock, BSAI clamp-lock, or an external pilot check valve.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32X25H
- ✓ 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 SI32X25H FAQ
Yes, the SI32X25H is discontinued. The direct replacement is the AirTAC SAI32X25H. It is dimensionally interchangeable per ISO 15552, matching the 32mm bore, 25mm stroke, G1/8 port, and mounting interface exactly.
This double-acting 32mm bore cylinder features a G1/8 air port. It generates 402N push and 345N pull at 0.5MPa, 563N push at 0.7MPa, and 724N push at 0.9MPa, with a theoretical maximum of 82kgf at 1.0MPa.
Request a Quote for the SAI32X25H
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X25H replacement — usually within 7-8 hours.