This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80BX190, 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 SI80BX190
The AirTAC SI80 Standard Air Cylinder SI80BX190 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 190mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80BX190, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke190 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80BX190
- 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 SI80BX190
The AirTAC SI80BX190 is a discontinued double-acting ISO 15552 profile cylinder with an 80mm bore and 190mm stroke. It delivers 2513 N push and 2268 N pull at 0.5 MPa, utilizing a G3/8 port and a SUS304 stainless steel rod (-B). AirTAC replaced this legacy unit with the SAI80BX190, a direct upgrade sharing the exact ISO 15552 mounting interface, output force, and dimensions.
The SAI80BX190 features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. Note this SKU lacks a magnet (-S), so it cannot accept CS1-B/DS1-B sensors. The SAI family also adds SAIL, SAIF, and BSAI lock variants absent in the SI line.
Airtac SI80 Standard Air Cylinder SI80BX190 Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80BX190 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80BX190 |
| Bore size | Ø80 mm |
| Stroke | 190 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 SAI80BX190 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 SAI80BX190 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 SI80BX190
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×190 | 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 SI80BX190 Is Used
Stainless Rod Clamping
Ideal for packaging machinery requiring corrosion resistance, using the SUS304 rod to clamp parts securely with 2513 N of push force at 0.5 MPa.
Heavy Material Diversion
Acts as a robust diverter on high-capacity conveyors, leveraging the 80mm bore and 190mm stroke to push heavy goods smoothly onto adjacent lines.
Pallet Load Stopping
Functions as a heavy-duty stopper in automated warehouses, absorbing kinetic energy via its 36mm adjustable air cushions to halt loaded pallets safely.
Replacing the Airtac SI80 Standard Air Cylinder SI80BX190 with the SAI80BX190
To replace the SI80BX190, order the SAI80BX190. Confirm the ISO 15552 mounting interface, the 80mm bore, 190mm stroke, G3/8 port, and your specific mounting accessory (LB, FA, TC, etc.). Because this SKU has no -S suffix, it cannot support magnetic sensing; if position detection is needed, you must select an SAI equivalent with a magnet and current AirTAC switches. When sizing, neighboring bores offer different forces: a 63mm bore provides 1559 N push at 0.5 MPa, while a 100mm bore yields 3927 N. Remember that a plain cylinder drifts if air pressure is lost; the 36mm adjustable air cushions only decelerate the piston near stroke end. For load holding on air loss, use an external rod lock, a pilot check valve, or specify the SAIL or BSAI lock variant. At 190mm stroke, rod bending stress is low, but always guide the load to prevent side-loading.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80BX190
- ✓ 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 SI80BX190 FAQ
Yes, the SI80BX190 is discontinued. The direct replacement is the SAI80BX190. It shares the identical ISO 15552 mounting interface, 80mm bore, 190mm stroke, G3/8 port, and output force, fitting directly into existing fixtures.
The 80mm bore uses a G3/8 port. Force ratings are: push 2513 N and pull 2268 N at 0.5 MPa; push 3518 N at 0.7 MPa; push 4523 N at 0.9 MPa; and a theoretical maximum of 513 kgf at 1.0 MPa. Operating speed is 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80BX190
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80BX190 replacement — usually within 7-8 hours.