This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X80FA, 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 SI100 Standard Cylinder SI100X80FA
The AirTAC Airtac SI100 Standard Cylinder SI100X80FA is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 80mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X80FA, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke80 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X80FA
- 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 SI100 Standard Cylinder SI100X80FA
The AirTAC SI100X80FA is a discontinued double-acting ISO 15552 profile cylinder with an 80 mm stroke and FA flange mounting. Delivering 3927 N push and 3681 N pull at 0.5 MPa, it features a 25 mm rod, M20x1.5 thread, G1/2 port, and 36 mm adjustable air cushions. The direct replacement is the SAI100X80FA, which preserves the exact ISO 15552 mounting interface, bore, stroke, force, and port size.
The SAI upgrade introduces an advanced piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. Note this specific SKU lacks a magnet (-S) and cannot accept position sensors; the legacy SI family used CS1-B/DS1-B switches, while SAIL lock and BSAI clamp-lock variants offer load-holding solutions the original SI lacked.
Airtac SI100 Standard Cylinder SI100X80FA Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X80FA |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X80FA |
| Bore size | Ø100 mm |
| Stroke | 80 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| 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 SAI100X80FA carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
The SAI100X80FA produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI100 Standard Cylinder SI100X80FA
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×80 | 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 SI100 Standard Cylinder SI100X80FA Is Used
Heavy-Duty Pressing
Applies the 5497 N push force at 0.7 MPa to seat bearings, stake metal panels, or form light components securely in automated machining cells.
Pallet Diversion
Uses the 80 mm stroke and FA flange mount to actuate heavy diverters or pop-up stops on high-throughput packaging and material handling conveyors.
Replacing the Airtac SI100 Standard Cylinder SI100X80FA with the SAI100X80FA
To replace the discontinued SI100X80FA, order the SAI100X80FA. It is a direct upgrade: the ISO 15552 FA flange interface, 100 mm bore, 80 mm stroke, G1/2 port, and 25 mm rod are completely unchanged. Because this SKU lacks a magnet, it cannot support sensing; if position detection is required, select an SAI100X80FAS instead. When sizing, consider neighbouring bores: an 80 mm bore yields 2513 N push at 0.5 MPa, while a 125 mm bore provides 6136 N. A plain cylinder drifts on air loss—the cushion only decelerates—so for load holding, specify the SAIL or BSAI lock variant, or use an external pilot check valve. Rod material options include carbon steel, SUS420J2 (A), and SUS304 (B); seal options include NBR N and high-temp Viton H.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X80FA
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI100 Standard Cylinder SI100X80FA FAQ
Yes, the AirTAC SI100X80FA is discontinued. The direct replacement is the SAI100X80FA. It shares the identical ISO 15552 FA flange mounting interface, 100 mm bore, 80 mm stroke, output force, and G1/2 port, fitting directly into existing fixtures.
This double-acting cylinder has a G1/2 air port. It delivers 3927 N push and 3681 N pull at 0.5 MPa, 5497 N push at 0.7 MPa, 7068 N push at 0.9 MPa, and a theoretical maximum force of 801 kgf at 1.0 MPa. Operating speed is 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X80FA
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X80FA replacement — usually within 7-8 hours.