Airtac SAIJ80 Adjustable Cylinder SAIJ80AX145-50
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX145-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 145mm 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
- Stroke145 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 SAIJ80AX145-50
The AirTAC SAIJ80X145-50 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the 145 mm nominal travel by up to 50 mm. This creates a precise 95-145 mm usable stroke window for exact end-position tuning during commissioning.
This variant features a SUS420J2 stainless steel piston rod (option A) for improved corrosion resistance and utilizes a PT tapered port thread. The extruded aluminum barrel includes sensor grooves on both sides, ready to accept CMSE reed or DMSE electronic sensors if a magnet is added later. The rear adjuster acts purely as a mechanical stop to set the travel end and does not hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX145-50 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX145-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 145 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 SAIJ80AX145-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×145 | 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 SAIJ80AX145-50 Is Used
Machine Setup & Changeover
Dial in the exact retract end-position during machine commissioning or product size changes without physically swapping out the entire cylinder.
Variable End-Stop Diverter
Adjust the stroke window from 95 to 145 mm on the fly to accommodate different package sizes on a pneumatic diverter mechanism.
Assembly Press Tuning
Fine-tune the retract distance on an assembly line press to ensure precise component seating without relying on external hard stops.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX145-50 the Right Cylinder?
If your application needs less force, stepping down to a 63 mm bore provides 1559 N, whereas moving up to a 100 mm bore yields 3927 N. The adjustable stroke is ideal for product changeovers on a line, letting you fine-tune the retract position without swapping the cylinder or adding external stops.
When replacing an ISO 15552 cylinder, match the 80 mm bore, 145 mm stroke, 50 mm adjustment range, PT port thread, and the desired mounting set. SAIJ supports a reduced mounting subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR options. Because the 145 mm stroke is under 300 mm, side-load concerns are moderate, but the 25 mm rod diameter still handles standard loads effectively.
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 SAIJ80AX145-50 FAQ
The rear adjusting screw acts as a mechanical stop that lets you shorten the 145 mm nominal stroke by up to 50 mm, providing a 95-145 mm usable travel window. It sets the end position but does not lock or hold the load without live air pressure.
It can achieve up to 513 kgf at its maximum 1.0 MPa pressure.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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