This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80BX1400, 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 SI80BX1400 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 1400mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80BX1400, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI80BX1400 is a discontinued double-acting ISO 15552 profile cylinder with an 80mm bore and 1400mm stroke. It delivers 2513 N push force at 0.5 MPa through a G3/8 port. The direct replacement is the SAI80BX1400, matching the interface, stroke and force.
This SKU features a SUS304 stainless steel rod and no magnet, so it cannot accept a sensor. The SAI upgrade uses two Y-shaped piston seals for low start-up pressure.
| Model | Airtac SI80 Standard Air Cylinder SI80BX1400 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80BX1400 |
| Bore size | Ø80 mm |
| Stroke | 1400 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 SAI80BX1400 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 SAI80BX1400 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. |
| ×1400 | 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).
Pushes heavy pallets 1400mm between conveyor lines using 2513 N of thrust at 0.5 MPa.
Actuates heavy doors in humid washdown zones using the SUS304 corrosion-resistant rod.
To replace the SI80BX1400, order the SAI80BX1400, matching the ISO 15552 mounting interface, 80mm bore, 1400mm stroke, G3/8 port, and SUS304 rod. If sensing is needed, note this non-magnetic SKU cannot take a switch. At 0.5 MPa it yields 2513 N push; the neighboring 63mm bore gives 1559 N, and the 100mm bore gives 3927 N. For load holding on air loss, add an external pilot check valve or use the SAIL/BSAI lock variant, as cushions only decelerate. At 1400mm stroke, use external guides to prevent rod bending and side loads.
Replacement checklist
Yes, the SI80BX1400 is discontinued. The direct replacement is the SAI80BX1400, which shares the same ISO 15552 mounting interface, 80mm bore, 1400mm stroke, output force, and G3/8 port.
It has a G3/8 port. Force ratings are 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 max of 513 kgf at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80BX1400 replacement — usually within 7-8 hours.