Airtac SAIJ80 Adjustable Cylinder SAIJ80BX325-20S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX325-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 325mm 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.
- BoreØ80 mm
- Stroke325 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX325-20S
The AirTAC SAIJ80X325-20-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement.
This unit is built with a SUS304 stainless steel rod for corrosion resistance and includes a magnet for CMSE reed and DMSE electronic sensors. Because the 325mm stroke is relatively long, the 25mm rod diameter handles high side loads, though an external guide is still recommended for unsupported lengths.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX325-20S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX325-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 325 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.
Theoretical Output Force (Ø80mm)
| 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.
Model Code: Airtac SAIJ80 Adjustable Cylinder SAIJ80BX325-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×325 | 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.
Where the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX325-20S Is Used
Machine Changeover
Fine-tune the 305-325mm travel window during product size changes to set precise retract stops without adding physical spacers to the line.
Diversion Gates
Adjusts the stroke end-point on the fly to accommodate varying package widths on a sorting conveyor system.
Press Positioning
Dials in the exact end position for light assembly presses, ensuring consistent contact without over-traveling the 325mm stroke.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX325-20S the Right Cylinder?
Choose this 80mm bore when an application requires more thrust than a 63mm cylinder (1559N at 0.5MPa) but less than a 100mm bore (3927N). The adjustable stroke is perfect for product changeovers, allowing you to fine-tune the retract position on the fly rather than installing external stops or reverting to a fixed-stroke SAI cylinder.
For setup, match the PT tapered port, your mounting choice (Basic, FA, LB, TC, FTC, TCM1, or TCM2), and the -S magnet requirement. Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air; for true load-holding, consider an external rod lock or the SAIL/BSAI series.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX325-20S FAQ
The rear adjuster screw lets you shorten the nominal 325mm stroke by up to 20mm, creating a 305-325mm travel window. This allows precise end-position tuning at commissioning without changing the cylinder.
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