This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80BX105, 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 SI80BX105
The AirTAC SI80 Standard Air Cylinder SI80BX105 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 105mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80BX105, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke105 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80BX105
- 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 SI80BX105
The AirTAC SI80BX105 is a discontinued double-acting ISO 15552 profile cylinder with an 80mm bore and 105mm stroke. It delivers 2513 N push and 2268 N pull at 0.5 MPa through a G3/8 port. The direct replacement is the SAI80BX105, matching the interface, force, and mounting. This SKU uses a SUS304 stainless steel rod (-B) and lacks a magnet, so it cannot accept a position sensor.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. For load holding, note that air cushions only decelerate; you need the SAIL or BSAI lock variants for secure holding.
Airtac SI80 Standard Air Cylinder SI80BX105 Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80BX105 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80BX105 |
| Bore size | Ø80 mm |
| Stroke | 105 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 SAI80BX105 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 SAI80BX105 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 SI80BX105
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×105 | 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 SI80BX105 Is Used
Stainless Rod Actuation
Ideal for environments requiring corrosion resistance, utilizing the SUS304 piston rod for reliable clamping in washdown manufacturing cells.
Mid-Range Diverting
Provides robust 2513 N push force at 0.5 MPa for diverting heavier pallets or components on automated conveyor lines.
Material Lift Stops
Acts as a heavy-duty stopper in vertical lift zones, safely decelerating loads before they reach the end of the stroke.
Replacing the Airtac SI80 Standard Air Cylinder SI80BX105 with the SAI80BX105
To replace the discontinued SI80BX105, order the SAI80BX105. Verify the ISO 15552 mounting interface, 80mm bore, 105mm stroke, G3/8 port, and SUS304 rod. Because this SKU lacks a magnet (-S), it cannot support legacy CS1-B/DS1-B sensors. For sizing, the 80mm bore yields 2513 N push at 0.5 MPa; dropping to a 63mm bore gives 1559 N, while an 80mm bore at 0.7 MPa provides 3518 N. If the application requires holding a load without live air, use the SAIL lock or BSAI clamp-lock variant, or add an external pilot check valve. For strokes over 300mm, guide the load to prevent rod bending.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80BX105
- ✓ 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 SI80BX105 FAQ
Yes, the SI80BX105 is discontinued. The direct replacement is the SAI80BX105. It is dimensionally interchangeable per ISO 15552, retaining the same 80mm bore, 105mm stroke, G3/8 port, and mounting interface.
The 80mm bore uses a G3/8 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 maximum theoretical force of 513 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80BX105
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80BX105 replacement — usually within 7-8 hours.