This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80BX100SH, 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 SI80BX100SH
The AirTAC SI80 Standard Air Cylinder SI80BX100SH 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 SAI80BX100SH, 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 → SAI80BX100SH
- 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 SI80BX100SH
The AirTAC SI80BX100SH is a discontinued double-acting ISO 15552 profile cylinder featuring an 80mm bore, 100mm stroke, and a SUS304 stainless steel piston rod. It delivers 2513 N push force at 0.5 MPa through its G3/8 port. AirTAC replaced this legacy unit with the SAI80BX100SH, a direct upgrade retaining the exact ISO 15552 mounting interface, bore, stroke, output force, and port size.
The SAI replacement features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. This SI unit includes a -H Viton seal for 0-150 C high-temperature environments, a piston magnet for CS1-B/DS1-B sensors, and a theoretical max force of 513 kgf at 1.0 MPa.
Airtac SI80 Standard Air Cylinder SI80BX100SH Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80BX100SH |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80BX100SH |
| 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 SAI80BX100SH 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 SAI80BX100SH 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 SI80BX100SH
| 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 SI80BX100SH Is Used
High-Temp Forming Press
Ideal for actuating small presses or degating molds up to 150 C using the Viton H seal, delivering 2513 N push force at 0.5 MPa.
Corrosive Fluid Diverter
The SUS304 stainless rod provides corrosion resistance for diverting valves in washdown zones, while the G3/8 port handles 30-800 mm/s speeds.
Replacing the Airtac SI80 Standard Air Cylinder SI80BX100SH with the SAI80BX100SH
To replace the SI80BX100SH, order the SAI80BX100SH direct equivalent, confirming the ISO 15552 mounting interface, 80mm bore, 100mm stroke, G3/8 port, and your specific mounting accessory. The -S magnet enables current AirTAC switches (replacing legacy CS1-B/DS1-B), while the -B SUS304 rod and -H Viton seal must be specified. Sizing both ways: a 100mm bore yields 3927 N push at 0.5 MPa, whereas a 63mm bore yields 1559 N. Remember, a plain cylinder drifts on air loss—the cushion only decelerates. For load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants. The SAI family also adds the SAIF self-valve option (bores 32-100).
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80BX100SH
- ✓ 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 SI80BX100SH FAQ
Yes, the SI80BX100SH is discontinued. The direct replacement is the SAI80BX100SH. It shares the identical ISO 15552 mounting interface, 80mm bore, 100mm stroke, output force, and G3/8 port, fitting existing fixtures perfectly.
This double-acting cylinder uses a G3/8 air port. It generates 2513 N push and 2268 N pull at 0.5 MPa, 3518 N push at 0.7 MPa, 4523 N push at 0.9 MPa, and a theoretical maximum force of 513 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80BX100SH
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80BX100SH replacement — usually within 7-8 hours.