
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX500-100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 500mm 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 SAIJ80X500-100 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a nominal 500 mm stroke that can be fine-tuned down by up to 100 mm, creating a precise 400-500 mm usable travel window.
This unit is configured with a SUS304 stainless steel rod for superior corrosion resistance and includes PT tapered port threads. The extruded aluminum barrel integrates sensor grooves on both sides, though this specific SKU is supplied without a magnet. You can fine-tune the retract end-position at commissioning without swapping the cylinder or adding external stops, while the rear screw acts purely as a travel stop and not a load-holding lock.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX500-100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 500 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. |
| ×500 | 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 400-500 mm retract distance during machine commissioning to accommodate different product widths without adding external hard stops.
Quickly adjust the stroke window on packaging conveyors to handle varying package sizes on the fly, reducing downtime between production runs.
The adjustable 400-500 mm travel window is ideal for product-size changeovers on a line, allowing operators to dial in the exact retract distance without machining new hard stops. Because the stroke is 500 mm, the M20x1.5 piston rod will experience leverage forces under load; an external guide should be used to prevent excessive side-loading and premature seal wear.
When specifying a replacement, verify the 80 mm bore, 500 mm nominal stroke, 100 mm adjustment range, PT port threads, and the absence of a magnet. This SAIJ cylinder supports a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR options. Note that the rear adjuster and air cushions only decelerate the travel end; to hold a load securely without live air pressure, select a SAIL locking cylinder or an external rod lock.
Quick checklist
It can deliver a maximum thrust of 513 kgf at 1.0 MPa.
The rear adjuster screw allows you to shorten the effective stroke by up to 100 mm from the nominal 500 mm, providing a usable travel window of 400-500 mm. The adjuster acts as a mechanical stop to set the end position and does not lock the load without air pressure.
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