This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80AX100S, 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 SI80 Standard Air Cylinder SI80AX100S
The AirTAC SI80 Standard Air Cylinder SI80AX100S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 100mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80AX100S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke100 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80AX100S
- 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 SI80 Standard Air Cylinder SI80AX100S
The AirTAC SI80AX100S is a discontinued double-acting ISO 15552 profile cylinder with an 80 mm bore and 100 mm stroke. It delivers 2513 N push and 2268 N pull at 0.5 MPa. The direct replacement is the SAI80AX100S, matching the G3/8 port, M20x1.5 thread, and 36 mm cushions.
This SAI upgrade features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure. The -A suffix specifies a SUS420J2 stainless steel rod, and the -S magnet works with legacy CS1-B/DS1-B sensors.
Airtac SI80 Standard Air Cylinder SI80AX100S Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80AX100S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80AX100S |
| Bore size | Ø80 mm |
| Stroke | 100 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M20×1.5 |
| 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, 36 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAI80AX100S carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
The SAI80AX100S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI80 Standard Air Cylinder SI80AX100S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×100 | 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 SI80 Standard Air Cylinder SI80AX100S Is Used
Mid-Tonnage Pressing
Applies 2513 N of push force at 0.5 MPa for assembling bearings and seating components in automated machining lines.
Package Diversion
Uses the 100 mm stroke to actuate routing gates and pusher arms, reliably redirecting heavy pallets along material handling conveyors.
Replacing the Airtac SI80 Standard Air Cylinder SI80AX100S with the SAI80AX100S
To replace the SI80AX100S, order the SAI80AX100S. It is dimensionally interchangeable per the ISO 15552 mounting interface, preserving the 80 mm bore, 100 mm stroke, and G3/8 port. Confirm your mounting accessory (LB, FA, TC) and thread type (PT, G, NPT). The -S magnet enables current AirTAC switches, while the -A rod is SUS420J2 stainless steel. If you need more force, the 100 mm bore offers 3927 N push at 0.5 MPa; if less is needed, the 63 mm bore provides 1559 N. Note that a plain cylinder drifts without live air; for load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants. The SAI family also includes the SAIF self-valve option for bores up to 100 mm.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80AX100S
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI80 Standard Air Cylinder SI80AX100S FAQ
Yes, the SI80AX100S is discontinued. The direct replacement is the SAI80AX100S. It shares the identical ISO 15552 mounting interface, 80 mm bore, 100 mm stroke, output force, and G3/8 port, fitting directly into existing fixtures.
The 80 mm bore uses a G3/8 air port. It generates 2513 N push and 2268 N pull at 0.5 MPa, 3518 N push at 0.7 MPa, 4523 N push at 0.9 MPa, and a theoretical maximum of 513 kgf at 1.0 MPa. Operating speed is 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80AX100S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80AX100S replacement — usually within 7-8 hours.