This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X226N, 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 SI80X226N
The AirTAC SI80 Standard Air Cylinder SI80X226N is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 226mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X226N, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke226 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80X226N
- 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 SI80X226N
The AirTAC SI80X226N is a discontinued double-acting ISO 15552 profile cylinder with an extruded aluminum barrel and adjustable air cushions at both ends. It delivers a thrust of 2513 N at 0.5 MPa through its G3/8 port. Because this legacy unit is end-of-life, you should order the direct replacement: the SAI80X226N. The SAI maintains the same 80 mm bore, 226 mm stroke, M20x1.5 rod thread, and mounting interface, dropping straight into existing fixtures.
The SAI upgrade features a modernized piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. Note that this specific SKU lacks a magnet (-S) and therefore cannot accept position sensors like the legacy CS1-B or DS1-B. Furthermore, the -N designation indicates standard NBR seals operating from -20 to +70 C; a Viton H option extends this to 150 C.
Airtac SI80 Standard Air Cylinder SI80X226N Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X226N |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X226N |
| Bore size | Ø80 mm |
| Stroke | 226 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 SAI80X226N 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 SAI80X226N 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 SI80X226N
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×226 | 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 SI80X226N Is Used
Package Diversion
Actuating routing gates on high-speed packaging lines where the 226 mm stroke provides ample travel to redirect parcels efficiently.
Pallet Stopping
Deploying heavy-duty end-stops at roller conveyor transfer points, utilizing the 2513 N push force to halt incoming pallets safely.
Vertical Pressing
Applying controlled downward clamping pressure on workholding fixtures, benefiting from the 36 mm adjustable end cushions to reduce impact.
Replacing the Airtac SI80 Standard Air Cylinder SI80X226N with the SAI80X226N
To replace the discontinued SI80X226N, order the SAI80X226N. Verify your ISO 15552 mounting accessory (LB, FA, TC, etc.), the G3/8 port threads, and the 226 mm stroke. If you require position sensing, you must select an SAI model with the magnet option, as this no-S legacy unit cannot accept switches. When sizing, neighboring bores offer alternatives: a 63 mm bore yields 1559 N push at 0.5 MPa, while a 100 mm bore provides 3927 N. A plain double-acting cylinder does not hold load on air loss—the cushion only decelerates. For load holding, use an external pilot check valve, rod lock, or the SAIL/BSAI lock variants. Since the stroke is over 200 mm, ensure adequate guide support to prevent rod bending and side-load wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X226N
- ✓ 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 SI80X226N FAQ
Yes, the AirTAC SI80X226N is discontinued. The direct replacement is the SAI80X226N. It shares the identical ISO 15552 mounting interface, 80 mm bore, 226 mm stroke, output force, and G3/8 port, fitting seamlessly into existing machinery.
This double-acting cylinder features a G3/8 air port and an M20x1.5 rod thread. It delivers a push force of 2513 N and a pull force of 2268 N at 0.5 MPa. At 0.7 MPa the push is 3518 N, and the theoretical maximum force is 513 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80X226N
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X226N replacement — usually within 7-8 hours.