Airtac SAIJ80 Adjustable Cylinder SAIJ80AX500-40
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX500-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 500mm 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
- Stroke500 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX500-40
The AirTAC SAIJ80X500-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 25mm piston rod with an M20x1.5 thread, yielding a robust 2513N push force at 0.5 MPa. The integrated rear stopper allows you to trim the effective travel, creating a 460-500mm usable window for precise end-position tuning without adding external stops.
This variant uses an SUS420J2 stainless steel rod for improved corrosion resistance. It features PT tapered port threads (G3/8) and variable air cushions at both ends. The extruded aluminum barrel includes dual sensor grooves, allowing you to add reed CMSE or electronic DMSE switches if position feedback is later required.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX500-40 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX500-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 500 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 SAIJ80AX500-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×500 | 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 SAIJ80AX500-40 Is Used
Variable End Stops
Dial in the exact 460-500mm retract position during machine commissioning to accommodate varying workpiece sizes without swapping hardware.
Product Changeover
Rapidly adjust the stroke end-point on packaging lines when switching between different carton or part dimensions.
High-Force Positioning
Leverage the 2513N push force to move heavy jigs or assemblies into their final working position with precise stopping control.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX500-40 the Right Cylinder?
Choose this 80mm bore when your application demands high thrust, such as the 2513N push force at 0.5 MPa, stepping up from a 63mm bore that offers 1559N. The 40mm rear adjustment mechanism is ideal for machine setups requiring variable end stops during product changeovers, providing finer control than a fixed-stroke SAI cylinder.
Because this cylinder handles a 500mm stroke, the extended rod length increases susceptibility to side-loading; always use an external guide rail to prevent premature seal wear. Note that the rear adjuster acts only as a travel stop and does not hold the load without live air—use an SAIL or BSAI cylinder for fail-safe load holding. It maintains ISO 15552 mounting interface dimensions and supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts.
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 SAIJ80AX500-40 FAQ
At 0.5 MPa operating pressure, this 80mm bore cylinder provides 2513N of push force and 2268N of pull force. It can reach up to 4523N push force at 0.9 MPa.
The rear adjuster acts as an external stop that allows you to shorten the nominal 500mm stroke by up to 40mm, providing an effective travel window of 460-500mm. It is a travel stop, not a lock, and requires live air pressure to hold the load.
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