Airtac SAIJ80 Adjustable Cylinder SAIJ80AX90-50
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX90-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 90mm 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
- Stroke90 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX90-50
The AirTAC SAIJ80X90-50 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering a robust 2513N push force at 0.5 MPa. By integrating a 50mm adjustment mechanism at the retract end, this SKU transforms the standard 90mm travel into a highly versatile 40-90mm usable window. This built-in adjustability allows operators to fine-tune end positions at commissioning without physically swapping the cylinder or fabricating external stops.
Featuring a SUS420J2 stainless steel rod (material code A) and PT tapered port threads, this unit is engineered for demanding environments. The extruded aluminum barrel incorporates sensor grooves on both sides for straightforward positioning feedback. It supports a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, intentionally omitting the FB, CA, CB, and CR foot and pivot options.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX90-50 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX90-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 90 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 SAIJ80AX90-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×90 | 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 SAIJ80AX90-50 Is Used
Product Changeover Diverter
Dial in the exact retraction distance between 40 and 90mm when switching a conveyor line to handle different package lengths without changing tooling.
End-Position Calibration
Fine-tune the final retract stop during machine commissioning to perfectly mate a 2513N clamping force against a workpiece without adding external stopper blocks.
Adjustable Ejector Setup
Set a variable ejection stroke window on an assembly press, allowing operators to trim the travel back by up to 50mm for delicate or variable-depth ejection tasks.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX90-50 the Right Cylinder?
Choose this 80mm bore adjustable model when an application requires variable end-stops or frequent product-size changeovers on a shared frame. If the 2513N thrust at 0.5 MPa is excessive, stepping down to a 63mm bore yields 1559N, whereas a 100mm bore provides 3927N for heavier payloads. The 25mm rod and M20x1.5 thread provide substantial rigidity, though any stroke exceeding 300mm still necessitates an external guide to prevent rod side-loading.
Selecting an adjustable SAIJ over a fixed SAI eliminates the need to stock multiple cylinders for slightly varying travel lengths. Remember that the rear adjuster functions strictly as a travel stop and the air cushions handle deceleration; neither will hold a load without live air pressure. For true fail-safe load holding, direct your design toward the SAIL (air-released lock) or BSAI (clamp-lock) series. When replacing an ISO 15552 cylinder, match the 80mm bore, 90mm stroke, 50mm adjustment, G3/8 PT port, and mounting footprint.
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 SAIJ80AX90-50 FAQ
At 0.5 MPa operating pressure, this 80mm bore cylinder generates 2513N of push force and 2268N of pull force. At the maximum 1.0 MPa pressure, it can deliver up to 513 kgf.
The rear adjuster screw acts as a mechanical stop that allows you to shorten the nominal 90mm stroke by up to 50mm, creating a usable travel window of 40 to 90mm. It sets the end position but does not lock or hold the load without continuous air pressure.
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