
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX150-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 150mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
The AirTAC SAIJ80X150-20-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 130-150 mm, allowing you to dial back the nominal 150 mm stroke by up to 20 mm during commissioning.
This variant includes a SUS420J2 stainless steel rod (option A) for superior corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel integrates dual sensor grooves, and the integrated magnet works seamlessly with AirTAC CMSE reed and DMSE electronic solid-state switches for precise position feedback.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX150-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 150 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 | 2268 N | 2268 N |
| 0.7 MPa | 3175 N | — |
| Max (@1.0 MPa) | 463 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. 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. |
| ×150 | 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 130-150 mm retract position during machine setup to accommodate varying material thicknesses without physically relocating the cylinder mount.
Rapidly adjust the stroke end-point on a packaging line when switching between different box sizes, minimizing downtime and avoiding external stop hardware.
The 20 mm rear adjustment screw lets you fine-tune the retract end-position without swapping hardware or adding external stops during product changeovers. Remember that this rear adjuster acts only as a travel stop and does not hold the load without live air pressure; for dead-air load holding, consider an AirTAC SAIL or BSAI cylinder.
When replacing an ISO 15552 cylinder, match the 80 mm bore, 150 mm stroke, PT G3/8 ports, and the -S magnet requirement. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting FB, CA, CB, and CR. Since the 25 mm rod and M20x1.5 thread handle high side loads, ensure adequate external guiding for your specific payload.
Quick checklist
The rear adjuster screw allows you to shorten the effective stroke from the nominal 150 mm down to 130 mm. This creates a 20 mm adjustable travel window for fine-tuning the end position at commissioning without replacing the cylinder.
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