
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX200-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 200mm 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 SAIJ80X200-30-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 200 mm travel to a precise 170-200 mm window. This variant features a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet for CMSE and DMSE sensors.
The rear adjustment screw acts purely as a mechanical stop for fine-tuning end positions during commissioning, not as a lock. It shares the standard extruded aluminum barrel with dual sensor grooves and uses a PT tapered port thread. Mounting options are limited to the reduced SAIJ set: Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR styles.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX200-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 200 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. |
| ×200 | 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 retract stop during machine commissioning, trimming up to 30 mm off the 200 mm stroke without external shims.
Quickly adapt the travel window for different product sizes on a packaging line by adjusting the rear stopper.
Choose this 80 mm bore when 50 mm falls short, delivering 3518 N at 0.7 MPa compared to the 1374 N from a 50 mm cylinder. The adjustable stroke is ideal for variable end-stops or product changeovers, letting you fine-tune the 170-200 mm travel window without swapping out the entire cylinder or adding external stops. For load-holding without live air pressure, note that neither the rear adjuster nor the air cushion acts as a brake; you would need to look at the SAIL or BSAI series instead.
When replacing an ISO 15552 cylinder, match the 80 mm bore, 200 mm stroke, 30 mm adjustment, PT G3/8 port, and the -S magnet requirement. Since the stroke is under 300 mm, side-loading is less critical, but the 25 mm rod and M20x1.5 thread still handle moderate side loads well; always guide long unsupported loads externally.
Quick checklist
The rear adjuster screw lets you shorten the effective travel from the nominal 200 mm down to 170 mm. It functions as a mechanical stop to fine-tune the retract position and does not lock the load without live air.
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