
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX500-30S 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 SAIJ80X500-30-S is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster.
This variant includes a SUS304 stainless steel rod for superior corrosion resistance and a PT tapered port thread. The extruded aluminum barrel integrates sensor grooves on both sides, and with the built-in magnet (-S), it supports AirTAC CMSE reed and DMSE electronic solid-state switches for exact position feedback.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX500-30S |
|---|---|
| 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 470-500mm retraction point during machine setup without adding external mechanical stops or changing the cylinder.
Quickly adjust the stroke length by up to 30mm on a packaging line when switching between different product dimensions.
Leverage the SUS304 stainless steel rod for higher corrosion resistance in demanding manufacturing environments.
The 30mm adjustment range is ideal for variable end-stops or product-size changeovers, preventing the need to physically swap out a fixed-stroke SAI cylinder. To match this ISO 15552 footprint exactly, specify an 80mm bore, 500mm stroke, PT ports, Basic/FA/LB/TC/FTC/TCM1/TCM2 mounting, and the -S magnet.
Because the 500mm stroke is lengthy, the 25mm rod diameter should still be paired with an external guide to handle side loads. Note that the rear adjuster functions strictly as a travel stop and does not hold the load without live air; for dead-load holding, consider an external rod lock, a SAIL cylinder, or a BSAI clamp-lock.
Quick checklist
The rear adjuster acts as a mechanical stop that allows you to shorten the effective stroke by up to 30mm, providing a usable travel window between 470mm and 500mm. It only sets the travel end and does not lock the load without continuous air pressure.
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