
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX210-30 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 SAIJ80X210-30 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 180-210 mm usable travel window from its 210 mm nominal stroke. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement.
This model utilizes a PT tapered port thread (G3/8) and achieves standard speeds of 30-800 mm/s. The rear adjuster acts purely as a mechanical stop to decelerate travel at the retract end, meaning it does not hold the load without live air pressure. For applications requiring position holding without continuous pneumatic pressure, an external rod lock or related AirTAC series like SAIL or BSAI should be specified instead.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX210-30 |
|---|---|
| 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 in the 180-210 mm travel window during product size transitions on packaging lines without replacing the cylinder.
Fine-tune the retract position on a press operation to accommodate different material thicknesses on the fly.
Trim the stroke by up to 30 mm during commissioning to perfectly time the mechanical sequence without adding external spacers.
The 30 mm adjustment range is ideal for machine setups requiring variable end-stops during product changeovers, eliminating the need to physically swap cylinders or bolt on external stopper blocks compared to a fixed-stroke SAI model.
When ordering, verify the exact configuration: 80 mm bore, 210 mm stroke, 30 mm adjustment, PT port thread, no magnet (sensors not specified), and SUS420J2 rod material. The mounting interface supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 attachments, omitting FB, CA, CB, and CR. For this 210 mm stroke, ensure external guiding mechanisms are used to manage side loads, as even the substantial 25 mm rod and M20x1.5 thread have limits on unsupported radial forces.
Quick checklist
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the effective travel from 210 mm down to 180 mm. This creates a 30 mm adjustable window for fine-tuning the retract end position at commissioning without swapping the cylinder.
At 0.9 MPa, the push force increases to 4523 N.
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