Airtac SAIJ80 Adjustable Cylinder SAIJ80AX500-75
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX500-75 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 SAIJ80AX500-75
The AirTAC SAIJ80X500-75 is a double-acting ISO 15552 profile cylinder with a 500 mm nominal stroke and a rear-mounted adjuster that allows you to trim the effective travel back by up to 75 mm. This yields a usable 425-500 mm end-position window, enabling fine-tuning at commissioning without bolting on external stops. It delivers 2513 N of push force at 0.5 MPa and up to 4523 N at 0.9 MPa, placing it in a robust force class for heavy manipulation.
This unit is configured with an SUS420J2 stainless steel rod (option A) for improved corrosion resistance and features PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides, and because no magnet is specified, position sensing would require external switch mounting. 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 SAIJ80AX500-75 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX500-75 |
|---|---|
| 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 SAIJ80AX500-75
| 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 SAIJ80AX500-75 Is Used
Variable Length Pushing
Dial in the retract stop from 425 to 500 mm to push different lengths of material through a machining station without changing the cylinder.
Machine Commissioning
Fine-tune the exact end-of-stroke position during setup to crash-proof tooling, avoiding the need to machine custom external stopper blocks.
Product Changeover
Quickly adjust the travel window on a packaging line to accommodate new carton sizes, using the 75 mm trim range to hit the exact transfer point.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX500-75 the Right Cylinder?
Choose this 80 mm bore when a 50 mm bore (offering 1767 N push at 0.9 MPa) lacks the thrust for your fixture, but a 100 mm bore (7068 N at 0.9 MPa) would be excessive. The adjustable 425-500 mm travel window is ideal for machines that process varying product lengths, allowing rapid changeover by dialing in the retract end-stop rather than swapping the cylinder. For any load-holding requirements without continuous air pressure, this standard SAIJ adjuster is not a lock; you would need to step up to an SAIL or BSAI series.
Because the 500 mm stroke is substantial, the 25 mm piston rod and M20x1.5 rod thread will carry a decent side-load rating, but an external guide is still recommended to prevent rod binding over long unsupported travel. As a dimensionally interchangeable ISO 15552 cylinder, it matches standard mounting footprints and uses the SAIJ mounting subset (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting FB, CA, CB and CR brackets.
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 SAIJ80AX500-75 FAQ
At 0.5 MPa it provides 2513 N of push force and 2268 N of pull force. At 0.9 MPa, the push force increases to 4523 N.
A rear-mounted screw stopper lets you mechanically shorten the 500 mm stroke by up to 75 mm, creating a 425-500 mm travel window. It sets the deceleration end-point but does not lock the load without live air pressure.
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