
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX105-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 105mm 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.
Its 105mm nominal stroke can be dialed back by up to 50mm, providing a precise 55-105mm usable travel window for fine-tuning end positions at commissioning.
This configuration features a SUS304 stainless steel rod for corrosion resistance and uses PT tapered port threads. It carries an extruded aluminum barrel with sensor grooves on both sides, and while this specific SKU lacks a magnet, the design fully supports external stopper tuning without compromising the standard ISO 15552 mounting footprint.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX105-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 105 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. |
| ×105 | 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 55-105mm end position during product size transitions without physically replacing the cylinder or adding external mechanical stops.
Fine-tune the stroke end-point during commissioning to perfect the pressing or clamping depth on variable components using the 80mm bore force.
Adjust the retract distance on the fly to accommodate different package sizes on a packaging line, relying on the rear stopper for precise travel limits.
Choose this 80mm bore adjustable cylinder when your application requires a high force output but variable end-stops during machine changeovers. The SAIJ80X105-50 is ideal for setups needing exact position tuning without swapping cylinders or adding external stops.
Remember that the rear adjuster acts only as a travel stop to set deceleration, not as a lock; it will not hold a load without live air. For secure load-holding without continuous pressure, consider the SAIL or BSAI series. This model uses the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting FB, CA, CB, and CR brackets.
Quick checklist
It operates efficiently at speeds between 30 and 800 mm/s.
The rear adjuster screw allows you to shorten the effective stroke by up to 50mm from the 105mm nominal length, creating a usable travel window of 55 to 105mm. This stopper sets the travel end and deceleration point but does not lock or hold the load without continuous air pressure.
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