
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX195-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 195mm 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 SAIJ80X195-20-S is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a 175-195 mm usable travel window by allowing you to dial back the 195 mm nominal stroke by up to 20 mm.
This variant features a SUS420J2 stainless steel rod for enhanced corrosion resistance and includes a magnet for CMSE reed and DMSE electronic sensors. The extruded aluminum barrel includes sensor grooves on both sides. It uses PT tapered port threads (G3/8) and offers adjustable air cushions at both ends to decelerate the load smoothly.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX195-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 195 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. |
| ×195 | 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 175-195 mm retract position when switching product sizes on a packaging line, eliminating the need to swap out cylinders or reposition mechanical stops.
Fine-tune the final resting point during machine commissioning to account for mechanical tolerances or sensor placement variations without disassembling the assembly.
Set precise retract limits on automated machinery where multiple parts are machined or handled at slightly different depths within the same work cell.
Choose this 80 mm bore when an application requires roughly 2500 N of pull force at 0.5 MPa; stepping down to a 63 mm bore drops that figure to 1402 N, while a 100 mm bore raises it to 3681 N. The adjustable stroke is selected over a fixed SAI cylinder when you need to fine-tune the retract end-position at commissioning or during product changeovers without adding external stops. For any stroke near or above 300 mm, external guides are recommended to handle side loads, though this 195 mm unit relies on its 25 mm rod and M20x1.5 thread for robust load guidance.
Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air pressure. If your machine requires true load-holding without continuous air, specify a SAIL air-released lock, a BSAI clamp-lock cylinder, or an external rod lock. This SAIJ model uses the reduced SAIJ mounting set: Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR).
Quick checklist
The rear adjusting screw acts as a stopper that lets you shorten the effective stroke by up to 20 mm, creating a 175-195 mm usable travel window. It sets the retract end-position but does not lock or hold the load without live air pressure.
At 0.5 MPa, it provides 2513 N of pull force and 2268 N of pull force (note: push is 2513 N, pull is 2268 N). At 0.9 MPa, the push force reaches 4523 N. The cylinder operates at speeds between 30 and 800 mm/s.
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