Airtac SAIJ80 Adjustable Cylinder SAIJ80AX50-40
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX50-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 50mm 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
- Stroke50 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX50-40
The AirTAC SAIJ80X50-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a usable travel window of 10 to 50 mm, letting you dial back the nominal 50 mm stroke by up to 40 mm during machine commissioning. This bore delivers robust thrust, generating 2513 N of pull force at 0.5 MPa and 4523 N of push force at 0.9 MPa.
Equipped with a SUS420J2 stainless steel rod and PT tapered ports, it handles demanding environments. The extruded aluminum barrel includes sensor grooves on both sides for direct CMSE or DMSE switch mounting. Mounting options cover Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR styles.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX50-40 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX50-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 50 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 SAIJ80AX50-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×50 | 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 SAIJ80AX50-40 Is Used
Product Changeover
Quickly dial in the 10 to 50 mm travel window when switching a conveyor line between different package sizes without swapping hardware.
End-Stop Calibration
Fine-tune the exact retract position during machine commissioning to achieve precise pressing or clamping locations.
Variable Assembly Stops
Adapt clamping distance on the fly for multi-variant assembly lines using the built-in rear stopper rather than external jigs.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX50-40 the Right Cylinder?
Select this 80 mm bore when an application requires high force but the exact end position fluctuates by product type. If your setup needs less push, stepping down to a 63 mm bore yields 1559 N at 0.5 MPa. The rear adjuster screw acts purely as a mechanical stop to fine-tune travel; it does not hold the load without live air pressure. For dead-end holding, consider a SAIL or BSAI series cylinder.
When replacing an ISO 15552 cylinder, match the 50 mm nominal stroke, 40 mm adjustment range, G3/8 PT ports, and your required mounting bracket. The 25 mm rod and M20x1.5 thread provide excellent side-load resistance, though any stroke over 300 mm on this bore would still demand an external guide.
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 SAIJ80AX50-40 FAQ
At 0.5 MPa it provides 2513 N pull force and 2268 N push force. At the maximum operating pressure of 1.0 MPa, it delivers up to 513 kgf.
The rear adjuster screw trims the 50 mm nominal stroke, creating a usable travel window of 10 to 50 mm. This stopper sets the end position but does not lock the load without continuous air pressure.
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