This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X225H, 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 SI80X225H
The AirTAC SI80 Standard Air Cylinder SI80X225H is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 225mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X225H, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke225 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80X225H
- 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 SI80X225H
The AirTAC SI80X225H is a discontinued double-acting ISO 15552 profile cylinder with an 80mm bore and 225mm stroke. It delivers 2513N push force at 0.5MPa via a G3/8 port. The direct replacement is the SAI80X225H, which matches the interface, force, and mounting.
This SKU lacks a magnet and cannot take a sensor. The SAI upgrade features two Y-shaped piston seals for low start-up pressure, and adds SAIL/BSAI lock variants. The H seal allows 0-150C heat.
Airtac SI80 Standard Air Cylinder SI80X225H Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X225H |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X225H |
| Bore size | Ø80 mm |
| Stroke | 225 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 SAI80X225H 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 SAI80X225H 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 SI80X225H
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×225 | 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 SI80X225H Is Used
Hot Stamp Press Ejection
Handles high-temperature part ejection from molding presses, leveraging the Viton H seal to withstand 0-150C ambient heat while pushing heavy platens.
Heavy Pallet Diversion
Provides robust 2513N push force at 0.5MPa to divert loaded pallets on assembly lines, safely operating within a 1508N working load margin.
Replacing the Airtac SI80 Standard Air Cylinder SI80X225H with the SAI80X225H
To replace the SI80X225H, order the SAI80X225H. Confirm the ISO 15552 mounting interface, 225mm stroke, G3/8 port, and M20x1.5 rod thread. This non-magnet SKU cannot accept a CS1-B/DS1-B sensor. If sizing down, the 63mm bore yields 1559N push at 0.5MPa; sizing up, the 100mm bore gives 3927N. For loads needing holding on air loss, use an external pilot check valve or the SAIL/BSAI lock variant, as cushions only decelerate. At 225mm stroke, side-load rod-bending is minimal, but ensure guide alignment.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X225H
- ✓ 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 SI80X225H FAQ
Yes, the SI80X225H is discontinued. The direct replacement is the SAI80X225H. It is dimensionally interchangeable per ISO 15552, retaining the same 80mm bore, 225mm stroke, G3/8 port, and mounting fixtures.
It features a G3/8 air port and M20x1.5 rod thread. Force output is 2513N push and 2268N pull at 0.5MPa, 3518N push at 0.7MPa, 4523N push at 0.9MPa, with a theoretical max of 513kgf at 1.0MPa. Speed is 30-800mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80X225H
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X225H replacement — usually within 7-8 hours.