
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX65-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 65mm 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 SAIJ80X65-30-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the 65 mm nominal travel to a precise 35-65 mm usable window during commissioning. This variant features a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet for CMSE or DMSE sensor integration.
Because the rear screw acts purely as a travel stop and the standard air cushions manage end-of-stroke deceleration, this cylinder cannot hold a load without live air pressure. For positive load-holding, you would need an external rod lock or a related SAIL pneumatic lock cylinder. The extruded aluminum barrel provides standard ISO 15552 mounting interchangeability.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX65-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 65 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. |
| ×65 | 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.
Quickly fine-tune the 35-65 mm travel window when switching between part sizes on a packaging line, using the rear adjuster instead of re-mounting hardware.
Utilize the integrated magnet with DMSE solid-state sensors to confirm the adjusted end-stop position in automated assembly fixtures.
The 30 mm adjustment range is ideal for product changeovers where the exact end-of-stroke position must be fine-tuned on the fly, avoiding the need to swap out a fixed-stroke SAI cylinder. To match this exact ISO 15552 replacement, specify the 80 mm bore, 65 mm stroke, 30 mm adjuster, PT tapered port threads, and the -S magnet option.
Although the 65 mm stroke is relatively short, the robust 25 mm rod diameter handles moderate side loads effectively. Always ensure your mounting choice—whether Basic, FA, LB, TC, FTC, TCM1, or TCM2—properly supports the load to prevent binding, as the SAIJ series omits FB, CA, CB, and CR mounts.
Quick checklist
At a maximum 1.0 MPa, the push force reaches 513 kgf.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the 65 mm nominal stroke by up to 30 mm. This creates a usable travel window of 35 to 65 mm for precise end-position tuning without replacing the cylinder.
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