This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80BX100S, 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 SI80BX100S
The AirTAC SI80 Standard Air Cylinder SI80BX100S 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 SAI80BX100S, 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 → SAI80BX100S
- 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 SI80BX100S
The AirTAC SI80BX100S is a discontinued double-acting ISO 15552 profile cylinder with an 80mm bore and 100mm stroke. It features a SUS304 stainless piston rod (B option) and a built-in magnet (S) for CS1-B/DS1-B switches. Delivering 2513N push force at 0.5 MPa, it is replaced by the SAI80BX100S.
The SAI80BX100S is a direct replacement matching the exact ISO 15552 mounting interface, G3/8 port, and 513 kgf max force. It upgrades the piston seal to two Y-shaped one-way elements for low start-up pressure.
Airtac SI80 Standard Air Cylinder SI80BX100S Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80BX100S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80BX100S |
| 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 SAI80BX100S 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 SAI80BX100S 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 SI80BX100S
| 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 SI80BX100S Is Used
Stainless Rod Diverters
Actuating routing gates on packaging lines where the SUS304 rod resists washdown corrosion.
Heavy Press Clamping
Securing heavy workpieces in machining fixtures, utilizing the 513 kgf maximum theoretical force.
Replacing the Airtac SI80 Standard Air Cylinder SI80BX100S with the SAI80BX100S
To replace the SI80BX100S, order the SAI80BX100S. Confirm the ISO 15552 mounting fixture, 100mm stroke, G3/8 port, and SUS304 rod. If sizing up or down, adjacent bores are 63mm (1559N push @0.5) and 100mm (3927N push @0.5). The cushion only decelerates; for load holding on air loss, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants. The SAIF self-valve variant is also available for bores up to 100mm.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80BX100S
- ✓ 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 SI80BX100S FAQ
Yes, the SI80BX100S is discontinued. The direct replacement is the SAI80BX100S. It shares the same ISO 15552 mounting interface, 80mm bore, 100mm stroke, G3/8 port, and output force, fitting existing fixtures perfectly.
The 80mm bore delivers 2513N push and 2268N pull at 0.5 MPa, 3518N push at 0.7 MPa, 4523N push at 0.9 MPa, and a 513 kgf max at 1.0 MPa. Operating speed is 30-800 mm/s. The G3/8 port and M20x1.5 rod thread are fixed by the bore.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80BX100S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80BX100S replacement — usually within 7-8 hours.