
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX200-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 200mm 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 SAIJ80X200-50 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a nominal 200 mm travel that can be dialed back by up to 50 mm, yielding a precise 150-200 mm usable window for fine-tuning end positions during commissioning. This eliminates the need to swap physical cylinders or bolt on external stops when adapting to new product sizes.
This specific SKU features a SUS420J2 stainless steel rod (code A) for improved corrosion resistance and runs on PT tapered port threads with a G3/8 air supply.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX200-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 200 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. |
| ×200 | 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 150-200 mm travel window during format changes on packaging lines without swapping out the entire cylinder assembly.
Fine-tune the retract position precisely to accommodate different raw material thicknesses on the fly at the machine controller.
Accommodate varying package sizes on a conveyor by adjusting the stroke rearward by up to 50 mm to alter the diverting distance.
The 50 mm adjustment range is ideal for machinery requiring frequent product changeovers, allowing operators to set variable end-stops on the fly without machining new hard stops. Unlike a fixed-stroke SAI cylinder, this model grants a 50 mm setup flexibility window.
Remember that the rear adjuster acts purely as a travel stop and cannot hold a load without continuous live air pressure. For load-holding requirements without live air, consider an AirTAC SAIL or BSAI cylinder instead. When replacing an ISO 15552 cylinder, match the 80 mm bore, 200 mm stroke, 50 mm adjustment, PT G3/8 port, and standard mounting interface. Since the total stroke reaches 200 mm, ensure adequate external guiding to prevent excessive side-loading on the rod.
Quick checklist
At the maximum 0.9 MPa, the push force increases to 4523 N.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the 200 mm nominal stroke by up to 50 mm. This creates a 150-200 mm usable travel window for precise end-position tuning without replacing the cylinder.
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