This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X100SFA, 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 SI80X100SFA
The AirTAC SI80 Standard Air Cylinder SI80X100SFA 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 SAI80X100SFA, 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 → SAI80X100SFA
- 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 SI80X100SFA
The AirTAC SI80X100SFA is a discontinued double-acting ISO 15552 profile cylinder with an 80mm bore and 100mm stroke. It delivers 2513N push force at 0.5MPa through a G3/8 port. AirTAC replaced this legacy unit with the SAI80X100SFA, a direct sharing the same interface, force, and FA flange mounting.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. The SAI family also adds SAIL, SAIF, and BSAI lock variants the SI lacked. Your -S code means a piston magnet for CS1-B/DS1-B switches; the SAI uses current AirTAC switches.
Airtac SI80 Standard Air Cylinder SI80X100SFA Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X100SFA |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X100SFA |
| 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 SAI80X100SFA 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 SAI80X100SFA 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 SI80X100SFA
| 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 SI80X100SFA Is Used
Press Fit Assembly
Drives bearings or pins into housings on an automated line, utilizing the 2513N thrust at 0.5MPa for reliable press fits.
Heavy Package Divert
Actuates a diverter arm on a packaging conveyor to push heavy cartons off the main belt, safely handling the 128kg vertical lift equivalent.
Pallet Stop Gate
Raises and lowers a physical stop gate at the end of a pallet accumulation zone using the FA flange mount to handle heavy pallet loads.
Replacing the Airtac SI80 Standard Air Cylinder SI80X100SFA with the SAI80X100SFA
To replace this SI80X100SFA, order the SAI80X100SFA. Confirm the ISO 15552 mounting interface, 80mm bore, 100mm stroke, G3/8 port, and FA flange accessory. The -S magnet carries over, but note legacy CS1-B/DS1-B sensors are superseded by current AirTAC switches on the SAI. If you need more force, the 100mm bore yields 3927N push at 0.5MPa; if less is acceptable, the 63mm bore yields 1559N. A plain cylinder drifts on air loss—the cushion only decelerates—so for load holding use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant. Rod material options include carbon steel, SUS420J2, or SUS304.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X100SFA
- ✓ 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 SI80X100SFA FAQ
Yes, the SI80X100SFA is discontinued. The direct replacement is the SAI80X100SFA. It is dimensionally interchangeable per ISO 15552, matching the 80mm bore, 100mm stroke, G3/8 port, FA flange, and output force.
The 80mm bore provides 2513N push and 2268N pull at 0.5MPa, 3518N push at 0.7MPa, 4523N push at 0.9MPa, and a maximum theoretical force of 513kgf at 1.0MPa. Operating speed is 30-800mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80X100SFA
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X100SFA replacement — usually within 7-8 hours.