
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX160-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 160mm 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 SAIJ80X160-20 is a double-acting, double-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. The built-in rear stopper lets you fine-tune the effective travel within a 140-160mm window, providing precise end-position tuning without swapping out the entire unit.
This model features PT tapered ports and dual-side sensor grooves on the extruded aluminum barrel. It supports a speed range of 30-800mm/s and includes adjustable air cushions at both ends to decelerate the load smoothly. The rear adjuster acts purely as a mechanical stop to set the travel limit and does not hold the load without continuous live air pressure.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX160-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 160 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. |
| ×160 | 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.
Quickly adapt the 140-160mm travel window during packaging line format changes to accommodate different carton sizes without replacing hardware.
Fine-tune the final retract position during machine commissioning to achieve exact clamping alignment, avoiding the need for external shims.
Select this 80mm bore cylinder when an application requires high push force (2513N at 0.5 MPa) alongside a customizable end-stop. If your setup needs less force, stepping down to a 63mm bore yields 1559N; if you need more, a 100mm bore provides 3927N. The adjustable 140-160mm travel window is ideal for machine changeovers, allowing you to dial in the exact stroke on-site rather than machining external stops or buying a fixed-length SAI cylinder.
For a direct ISO 15552 replacement match, ensure you specify an 80mm bore, 160mm nominal stroke, 20mm adjustment range, PT port threads, and the SUS304 (B) rod material. Because this unit lacks a magnet, it cannot host CMSE or DMSE sensors without modification. Mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR styles. If your process requires true load-holding without live air, consider an AirTAC SAIL or BSAI cylinder instead.
Quick checklist
At 0.7 MPa, the push force increases to 3518N.
The rear adjusting screw acts as a mechanical stopper, allowing you to shorten the 160mm nominal stroke by up to 20mm. This creates a usable travel window of 140-160mm for precise end-position tuning at commissioning.
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