
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX30-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 30mm 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 SAIJ80X30-30 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the end-of-travel position. Based on the specified configuration, the nominal 30 mm stroke can be dialed back by up to 30 mm, providing a usable travel window of 0-30 mm to perfectly dial in the retract distance during commissioning.
This unit is built with a SUS420J2 stainless steel rod for enhanced corrosion resistance and utilizes PT tapered port threads for a tight, reliable pneumatic connection. The extruded aluminum barrel incorporates sensor grooves on both sides for flexible switch mounting, while the integrated adjustable air cushions at both ends manage end-of-stroke deceleration. The rear stopper mechanism acts solely as a travel stop to set the position and does not hold the load without continuous live air pressure.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX30-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 30 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. |
| ×30 | 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 0-30 mm clamping distance during machine commissioning to accommodate varying workpiece thicknesses without hardware changes.
Quickly adjust the retract stop position on packaging lines when switching to different product sizes, minimizing downtime between runs.
An adjustable stroke is highly advantageous here over a fixed-stroke SAI cylinder because it allows operators to set variable end stops for product changeovers without physically swapping the actuator or adding external stops. Because the stroke is under 300 mm, the 25 mm rod handles side loading well without requiring an external guide, though the load must still be supported by live air since the adjuster is not a locking device.
For an exact ISO 15552 replacement, match these critical specifications: 80 mm bore, 30 mm nominal stroke, 30 mm adjustment range, PT thread type G3/8 port, and standard mounting options including Basic, FA, LB, TC, FTC, TCM1, and TCM2. Note that this unit does not include a magnet, so position sensing via CMSE or DMSE switches is not supported without a -S variant.
Quick checklist
The rear adjuster screw acts as an external stopper that shortens the effective stroke by up to 30 mm. With a 30 mm nominal stroke, this provides a usable travel window of 0 to 30 mm, allowing precise end-position tuning without replacing the cylinder.
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