This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80AX220S, 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 SI80AX220S
The AirTAC SI80 Standard Air Cylinder SI80AX220S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 220mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80AX220S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke220 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80AX220S
- 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 SI80AX220S
The AirTAC SI80AX220S is a discontinued double-acting ISO 15552 profile cylinder with an 80mm bore and 220mm stroke. It delivers 2513 N push and 2268 N pull at 0.5 MPa, operating at 30-800 mm/s with a G3/8 port and an M20x1.5 rod thread. The direct replacement is the SAI80AX220S, matching the interface, force, and mounting.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure and long life. This -A variant uses a SUS420J2 stainless rod, and the -S magnet works with legacy CS1-B/DS1-B sensors. For load holding, note the cushion only decelerates; explore SAIL or BSAI lock variants.
Airtac SI80 Standard Air Cylinder SI80AX220S Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80AX220S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80AX220S |
| Bore size | Ø80 mm |
| Stroke | 220 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 SAI80AX220S 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 SAI80AX220S 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 SI80AX220S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×220 | 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 SI80AX220S Is Used
Package Diverting
Drives diverter arms on high-throughput packaging lines, using the 220mm stroke to reroute heavy cartons reliably.
Pallet Stopping
Acts as a robust end-stop for loaded pallets arriving on roller conveyors, absorbing kinetic energy via the adjustable cushion.
Press Ejection
Ejects formed metal or plastic parts from press dies, where the SUS420J2 stainless rod resists coolant corrosion.
Replacing the Airtac SI80 Standard Air Cylinder SI80AX220S with the SAI80AX220S
To replace the SI80AX220S, order the SAI80AX220S. It drops into existing fixtures per the ISO 15552 mounting interface, matching the 80mm bore, 220mm stroke, G3/8 port, and M20x1.5 thread. Retain your mounting accessory (LB, FA, TC, etc.) and confirm the -S magnet for current AirTAC switches. The SUS420J2 stainless rod suits corrosive environments.
Sizing both ways: neighbouring bores are 63mm (1559 N push @0.5 MPa) and 100mm (3927 N). For stroke >=300mm, use guide rails to prevent rod bending. The cushion only decelerates; for load holding on air loss, use an external pilot check valve or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80AX220S
- ✓ 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 SI80AX220S FAQ
Yes, the SI80AX220S is discontinued. The direct replacement is the SAI80AX220S. It is dimensionally interchangeable per the ISO 15552 mounting interface, retaining the same 80mm bore, 220mm stroke, G3/8 port, and output force.
This double-acting cylinder has a G3/8 port and M20x1.5 rod thread. It generates 2513 N push and 2268 N pull at 0.5 MPa, 3518 N push at 0.7 MPa, 4523 N at 0.9 MPa, and a theoretical max of 513 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80AX220S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80AX220S replacement — usually within 7-8 hours.