
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX600-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 600mm 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 SAIJ80X600-100-S is a double-acting ISO 15552 profile cylinder featuring a SUS304 stainless steel rod and a rear stroke adjuster. By turning the external stopper screw, you can trim the effective travel back by up to 100 mm, creating a precise 500-600 mm usable stroke window without swapping out the barrel. This on-the-fly tuning is ideal for product changeovers or dialing in exact end positions during machine commissioning.
It features PT tapered ports, variable air cushions at both ends, and a magnetic piston for electronic DMSE or reed CMSE sensor tracking. Note that the rear adjuster acts purely as a travel stop and does not hold the load without live air pressure.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX600-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 600 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. |
| ×600 | 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.
Adjust the 500-600 mm stroke window on the fly to handle different package sizes on a packaging line without changing out the cylinder.
Dial in the exact retract position during machine setup, using the 100 mm rear stopper screw to fine-tune the end position without external shims.
Choose this 80 mm bore when your application demands high thrust but requires variable end-stop positioning, stepping up from a 63 mm bore that provides 2805 N at 0.9 MPa. The 100 mm adjustment range is perfect for accommodating multiple product sizes on a single conveyor line without bolting on external stops. If you need a fixed stroke instead, the standard SAI series is the direct equivalent.
Because the 600 mm stroke is substantial, the 25 mm rod diameter should be paired with an external guide to prevent excessive side-loading and rod binding. Remember that the rear adjuster is a stop, not a lock; if your machine requires true load-holding without live air, select the SAIL or BSAI series instead. Mounting options for this profile cylinder include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Quick checklist
The rear adjuster screw acts as a mechanical stop that shortens the nominal 600 mm stroke by up to 100 mm, giving you a usable travel window of 500-600 mm. It allows you to fine-tune the retract end position at commissioning without replacing the cylinder.
It operates at speeds between 30 and 800 mm/s.
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