This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X760, 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 SI80X760 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 760mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X760, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI80X760 is a discontinued double-acting ISO 15552 profile cylinder with an 80 mm bore and 760 mm stroke. Delivering 2513 N push force at 0.5 MPa, it features a Ø25 mm rod, M20x1.5 thread, G3/8 port and 36 mm adjustable air cushions. Because the SI line is end-of-life, you should order the SAI80X760 direct replacement, which matches the exact ISO 15552 mounting interface, bore, stroke, output force and port size.
The SAI upgrade introduces a refined piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. Note this specific SKU lacks a magnet (-S), so it cannot accept CS1-B/DS1-B sensors. For high-heat environments, a Viton H seal option raises the operating temperature to 0-150 C.
| Model | Airtac SI80 Standard Air Cylinder SI80X760 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X760 |
| Bore size | Ø80 mm |
| Stroke | 760 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 SAI80X760 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 SAI80X760 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. |
| ×760 | 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 pushing heavy pallets across conveyor lanes, utilizing the 760 mm stroke and 2513 N force at 0.5 MPa to shift loads between parallel assembly lines.
Ejects molded or machined parts from large presses, using the 36 mm adjustable air cushions to decelerate the 80 mm bore smoothly at stroke end.
To replace the SI80X760, order the SAI80X760. Verify your existing fixture's ISO 15552 mounting interface (LB, FA, CA, TC, etc.), the 80 mm bore, 760 mm stroke, and G3/8 port. If sizing up or down, adjacent bores are 63 mm (1559 N push @0.5 MPa) and 100 mm (3927 N push @0.5 MPa). This non-magnetic SKU cannot take a sensor; order an SAI80X760S if switch tracking is needed. A plain cylinder drifts without live air, so for load holding use an external pilot check valve or the SAIL/BSAI lock variants. Because 760 mm is a long stroke, prevent rod bending by guiding the load externally to avoid side-load damage.
Replacement checklist
Yes, the AirTAC SI80X760 is discontinued. The direct replacement is the SAI80X760. It is a true ISO 15552 profile cylinder that matches the 80 mm bore, 760 mm stroke, G3/8 port, and mounting interface, fitting your existing fixtures perfectly.
The 80 mm bore delivers 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. Operating speed is 30-800 mm/s, and the G3/8 port remains fixed by the bore.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X760 replacement — usually within 7-8 hours.