Airtac SAIJ80 Adjustable Cylinder SAIJ80AX180-75
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX180-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 180mm 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
- Stroke180 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 SAIJ80AX180-75
The AirTAC SAIJ80X180-75 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the nominal 180 mm stroke back by up to 75 mm. This creates a highly flexible 105-180 mm usable travel window, enabling exact end-position tuning during commissioning without the need to swap out the entire barrel or bolt on external stops.
This unit is configured with a SUS420J2 stainless steel rod (option A) for enhanced corrosion resistance and features PT tapered port threading for a reliable seal. The extruded aluminum barrel includes sensor grooves on both sides for mounting CMSE reed or DMSE solid-state switches. The 25 mm rod and M20x1.5 thread provide excellent rigidity, though long unsupported strokes still require an external guide to prevent side-load damage.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX180-75 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX180-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 180 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 SAIJ80AX180-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×180 | 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 SAIJ80AX180-75 Is Used
Variable End-Stop Tuning
Dial in the exact retract position within the 105-180 mm window during machine commissioning to accommodate varying material thicknesses without external spacers.
Product Size Changeover
Quickly adjust the cylinder's effective stroke on automated lines when switching between different product sizes, minimizing downtime between production runs.
Heavy Payload Positioning
Leverage the 2513 N pull force at 0.5 MPa to reliably shift heavy workpieces or fixtures into their exact final machined position before an operation begins.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX180-75 the Right Cylinder?
Choose this 80 mm bore adjustable cylinder when your machine setup requires variable end-stops or frequent product-size changeovers, replacing the need for a fixed-stroke SAI cylinder. If your application requires less force, stepping down to a 63 mm bore yields 1402 N of pull force at 0.5 MPa; stepping up to a 100 mm bore provides 3681 N of pull force for heavier payloads. Because the 180 mm stroke is under the 300 mm threshold, side-load concerns are moderate, but the rod should still be guided if subjected to lateral stress.
When matching this ISO 15552 interchangeable cylinder for a replacement, verify the 80 mm bore, 180 mm stroke, 75 mm adjustment range, PT G3/8 port, and the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Note that this cylinder does not hold its load without live air pressure—the rear adjuster is strictly a travel stop, not a locking device. For true load-holding without continuous air, consider the SAIL or 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 SAIJ80AX180-75 FAQ
At the maximum operating pressure of 1.0 MPa, it delivers a maximum push force of 513 kgf.
The rear adjusting screw acts as an external stopper that shortens the effective stroke. For this SAIJ80X180-75 model, you can trim the nominal 180 mm stroke back by up to 75 mm, resulting in a usable travel window of 105 to 180 mm depending on your setup.
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