Airtac SAIJ80 Adjustable Cylinder SAIJ80AX65-40S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX65-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 65mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ80 mm
- Stroke65 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX65-40S
The AirTAC SAIJ80X65-40-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a substantial 2513N push force at 0.5MPa and features a usable travel window of 25 to 65mm, letting you trim the 65mm nominal stroke by up to 40mm. This wide adjustment band is ideal for dialing in exact end positions during machine commissioning without swapping hardware.
This specific SKU is configured with a SUS420J2 stainless steel rod (code A) for improved corrosion resistance and a PT tapered port thread. The integrated -S magnet allows seamless position detection using AirTAC CMSE reed or DMSE electronic sensors fitted into the dual-side sensor grooves. The 25mm piston rod and M20x1.5 thread provide robust support, though external guidance remains recommended for offset loads.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX65-40S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX65-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 65 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 | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ80 Adjustable Cylinder SAIJ80AX65-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×65 | 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 SAIJ80AX65-40S Is Used
Machine Commissioning
Dial in the exact retract position during setup by trimming the stroke within the 25-65mm window, avoiding mechanical rework.
Product Size Changeovers
Quickly adapt the end-stop distance on packaging lines when handling different package lengths without swapping the cylinder.
Variable End Positioning
Use the rear stopper screw to set precise lower endpoints for pressing or forming tasks that require slight travel variations.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX65-40S the Right Cylinder?
Choose this 80mm bore actuator when a 50mm bore yields insufficient thrust (982N push at 0.5MPa) but you want to avoid stepping up to a 100mm unit. The SAIJ80X65-40-S is selected specifically when a wide 25-65mm travel window is required for product-size changeovers or variable end-stops. Unlike a fixed SAI cylinder, this adjustable model fine-tunes the retract position at commissioning without adding external stops.
For ISO 15552 replacement matching, specify: 80mm bore, 65mm stroke, 40mm adjustment, PT port thread, SUS420J2 rod, and the -S magnet. Note that the rear adjuster acts purely as a travel stop and does not hold the load without live air pressure; for fail-safe load holding, consider an AirTAC SAIL or BSAI cylinder. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ80AX65-40S FAQ
The rear adjuster acts as a mechanical stop that lets you shorten the effective stroke by up to 40mm. This provides a usable travel window of 25 to 65mm, allowing fine-tuning of the end position at commissioning without replacing the cylinder.
At 0.5MPa operating pressure, it provides 2513N of push force and 2268N of pull force. At the maximum 1.0MPa pressure, the push force reaches 5026N.
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