Airtac SAIJ80 Adjustable Cylinder SAIJ80AX180-20
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX180-20 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 SAIJ80AX180-20
The AirTAC SAIJ80X180-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the effective travel by up to 20 mm. This creates a precise 160-180 mm usable stroke window, enabling fine end-position tuning at commissioning without swapping the barrel or adding bulky external stops.
This unit features a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance and uses PT tapered port threads with a G3/8 air supply. The extruded aluminum barrel includes sensor grooves on both sides for direct mounting of CMSE reed or DMSE electronic switches. The rear adjuster acts solely as a mechanical stop to set the travel end and does not hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX180-20 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX180-20 |
|---|---|
| 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 SAIJ80AX180-20
| 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 SAIJ80AX180-20 Is Used
Machine Changeover
Dial in the 160-180 mm travel window precisely during product size changes without machining new hard stops.
End-Position Tuning
Fine-tune the retract end position at commissioning to perfect the timing of a 2513 N assembly press.
Variable End Stops
Adjust the effective stroke on the fly for automated lines handling multiple package formats.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX180-20 the Right Cylinder?
Choose this adjustable-stroke model over a fixed SAI cylinder when your machine setup requires variable end-stops or frequent product-size changeovers that demand slight travel modifications. If your application requires less thrust, stepping down to a 63 mm bore yields 1559 N at 0.5 MPa; if you need more power, a 100 mm bore provides 3927 N. Because the 180 mm stroke is below the 300 mm threshold, external guide requirements are minimal, though the 25 mm rod still handles substantial side loads.
For an exact ISO 15552 replacement, match the 80 mm bore, 180 mm nominal stroke, 20 mm adjustment range, PT G3/8 port, and SUS420J2 rod material. Remember that the rear adjuster and the variable air cushions at both ends only decelerate the travel end; they do not function as a lock. For true load-holding without live pressure, consider the SAIL or BSAI series instead. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR.
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 SAIJ80AX180-20 FAQ
The rear adjuster screw lets you shorten the 180 mm nominal stroke by up to 20 mm, providing a 160-180 mm usable travel window. This mechanical stop sets the retract end position but does not lock or hold the load without continuous air pressure.
At the maximum operating pressure of 1.0 MPa, the push force reaches 513 kgf.
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1-Year Warranty
Covers non-human-caused product damage.
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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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