This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80BX195, 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.

The AirTAC SI80 Standard Air Cylinder SI80BX195 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 195mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80BX195, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI80BX195 is a discontinued double-acting ISO 15552 profile cylinder with an 80 mm bore, 195 mm stroke, and a SUS304 stainless steel rod. Delivering 2513 N push force at 0.5 MPa, it is replaced by the SAI80BX195. This direct upgrade shares the same G3/8 port, M20x1.5 thread, and mounting interface.
The SAI features an upgraded piston seal with two Y-shaped elements for low start-up pressure and long life. Note this SKU lacks a magnet and cannot take a sensor.
| Model | Airtac SI80 Standard Air Cylinder SI80BX195 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80BX195 |
| Bore size | Ø80 mm |
| Stroke | 195 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 SAI80BX195 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
The SAI80BX195 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×195 | 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).
Ideal for machining cells where the SUS304 rod resists coolant corrosion while providing 2513 N of clamping thrust at 0.5 MPa.
Applies consistent 3518 N downward pressing force at 0.7 MPa for assembling bearings into housings over the 195 mm travel.
Drives robust routing gates on high-mass conveyor lines, utilizing the 36 mm adjustable air cushions to halt the payload smoothly.
To replace the SI80BX195, order the SAI80BX195. It drops into existing fixtures via the identical ISO 15552 mounting interface, matching the 80 mm bore, 195 mm stroke, G3/8 port, and M20x1.5 rod thread. The SUS304 rod provides corrosion resistance versus standard carbon steel. Because this SKU has no magnet, you cannot mount a position sensor. If sizing alternatives, a 63 mm bore yields 1559 N push at 0.5 MPa, while a 100 mm bore yields 3927 N. For load holding on air loss, the cushion only decelerates; use an external pilot check valve or the SAIL/BSAI lock variant.
Replacement checklist
Yes, the SI80BX195 is discontinued. The direct replacement is the SAI80BX195. It is dimensionally interchangeable per ISO 15552, retaining the same 80 mm bore, 195 mm stroke, G3/8 port, and mounting fixtures.
The G3/8 port pairs with a 25 mm rod. At 0.5 MPa it pushes 2513 N and pulls 2268 N. At 0.7 MPa push is 3518 N, and at 0.9 MPa it is 4523 N. The theoretical maximum force is 513 kgf at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80BX195 replacement — usually within 7-8 hours.