
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX160-50S 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.
It features a SUS304 stainless steel rod and a built-in magnet for position sensing. The external stopper allows you to trim the nominal 160mm travel back by up to 50mm, creating a precise 110-160mm usable window for dialing in end positions during commissioning.
This adjustable-stroke design eliminates the need to swap cylinders or bolt on external stops when product sizes change. It uses PT tapered ports and includes sensor grooves on both sides of the extruded aluminum barrel. The rear adjuster acts purely as a travel stop and works alongside the standard air cushions to decelerate the load, but it does not hold the load without live air pressure.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX160-50S |
|---|---|
| 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.
Dial in the exact retract distance between 110 and 160mm during machine setup to accommodate varying material thicknesses without changing hardware.
Quickly adjust the stroke stop on packaging lines when switching between different package sizes, minimizing downtime and avoiding external stop blocks.
The 50mm adjustment range is ideal for machines running multiple product sizes, allowing operators to fine-tune the retract end position on the fly instead of ordering a fixed-stroke SAI cylinder.
To match this ISO 15552 cylinder for a replacement, verify the 80mm bore, 160mm stroke, 50mm adjustment, PT port thread, and the -S magnet option. Mounting choices are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2. Because the stroke is under 300mm, side-load stress is minimal, but the 25mm rod diameter handles standard loads well. For load-holding without air pressure, use a SAIL or BSAI cylinder instead of relying on the adjuster.
Quick checklist
At 0.7MPa, the push force increases to 3518N.
The rear adjuster screw lets you shorten the effective travel from the nominal 160mm down to 110mm. This stopper fine-tunes the end position during commissioning but does not lock the load without continuous air pressure.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.