
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX210-100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 210mm 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 SAIJ80X210-100 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 110 to 210 mm, allowing you to dial back the nominal 210 mm stroke by up to 100 mm during commissioning.
This unit features a SUS304 stainless steel rod for superior corrosion resistance and ships without a magnet. It uses PT tapered port threads (G3/8) and relies on variable air cushions at both ends to decelerate the load. The rear adjuster acts purely as a travel stop, so live air pressure must be maintained to hold a load.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX210-100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 210 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. |
| ×210 | 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 the travel back from 210 mm to 110 mm instantly when switching to a shorter product format on the line.
Fine-tune the exact retracted position at commissioning without adding external mechanical stops.
Leverage the SUS304 stainless steel rod for reliable actuation in washdown or mildly corrosive industrial settings.
Choose this 80 mm bore when you need significantly more thrust than the 50 mm bore provides (1767 N at 0.9 MPa) but want to avoid the larger footprint of a 100 mm cylinder. The 100 mm adjustment range is ideal for machines running multiple product sizes, enabling rapid changeover without swapping the cylinder. For strokes of 210 mm, ensure an external guide supports the load, as the 25 mm rod cannot counter heavy side loads alone. If you require true load-holding without continuous air pressure, select the SAIL or BSAI series instead of this adjustable stopper. To match this ISO 15552 replacement, specify the 80 mm bore, 210 mm stroke, 100 mm adjustment, PT ports, and no magnet.
Quick checklist
The rear adjuster acts as a mechanical stop that lets you shorten the effective travel from the nominal 210 mm down to as little as 110 mm, creating a 110-210 mm usable window for fine-tuning.
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