
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX450-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 450mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
The AirTAC SAIJ80X450-100-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a nominal 450 mm stroke that can be fine-tuned backward by up to 100 mm, creating a usable travel window of 350-450 mm. Delivering 2513 N of push force at 0.5 MPa, it is built to handle demanding positioning tasks.
This specific configuration features a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance and includes a magnet (-S) for use with CMSE reed or DMSE electronic solid-state sensors. The extruded aluminum barrel incorporates sensor grooves on both sides, and the rear adjuster acts purely as a mechanical stop for end-position tuning, not as a lock to hold the load without live air.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX450-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 450 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 stroke | Up to 1500 mm |
Specifications follow the official AirTAC SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×450 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
Dial in the exact retract distance between 350 and 450 mm during machine setup to accommodate different material lengths without adding external stops.
Quickly adjust the stroke window on packaging lines when switching between box sizes, leveraging the 100 mm trim range to minimize downtime.
Utilize the integrated magnet with DMSE electronic sensors to confirm end-of-stroke positions accurately while the rear screw sets the physical stop.
Choose this 80 mm bore cylinder when an application requires trimming the retract end-position during commissioning or product changeover without swapping out the physical actuator. If your process demands less force, stepping down to a 63 mm bore yields 1559 N of push force at 0.5 MPa; conversely, moving up to a 100 mm bore provides 3927 N. Because the 450 mm stroke is substantial, an external guide is recommended to prevent excessive side-loading on the 25 mm rod.
To match this exact ISO 15552 interchangeable replacement, specify: 80 mm bore, 450 mm stroke, 100 mm adjustment range, PT tapered port threads, a SUS420J2 rod, and the -S magnet option. Remember that the rear screw stopper and the variable air cushions only decelerate the load; for true load-holding without live air pressure, consider an AirTAC SAIL or BSAI cylinder. Mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Quick checklist
At 0.5 MPa operating pressure, this 80 mm bore cylinder provides 2513 N of push force and 2268 N of pull force. At a maximum 1.0 MPa pressure, it can deliver up to 513 kgf.
The rear adjuster screw allows you to shorten the effective stroke by up to 100 mm from the nominal 450 mm, giving an adjustable travel window of 350-450 mm. This stopper only sets the end position and does not lock the load without continuous air pressure.
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