Airtac SAIJ80 Adjustable Cylinder SAIJ80AX90-20S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX90-20S 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 SAIJ80AX90-20S
The AirTAC SAIJ80X90-20-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 70 to 90 mm. It delivers a robust 2513 N push force at 0.5 MPa, making it suitable for medium to heavy-duty positioning tasks.
This variant features a SUS420J2 stainless steel rod and a PT tapered port. The integrated magnet works seamlessly with CMSE reed and DMSE electronic sensors mounted in the dual-side extruded aluminum barrel grooves. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX90-20S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX90-20S |
|---|---|
| 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 SAIJ80AX90-20S
| 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 SAIJ80AX90-20S Is Used
Machine Setup Tuning
Dial in the exact 70-90 mm end position during initial commissioning to perfect a pressing or lifting motion without machining new hard stops.
Product Changeover
Quickly adjust the retract distance on a packaging line when product sizes change, using the 20 mm trim window to accommodate varying material heights.
Variable End Stops
Set precise retract limits for automated assembly tooling, allowing operators to fine-tune the stroke on the fly for delicate component placement.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX90-20S the Right Cylinder?
Choose this 80 mm bore when your application requires more thrust than a 63 mm cylinder (1559 N at 0.5 MPa) but less than a 100 mm unit (3927 N). The adjustable stroke is ideal for fine-tuning end positions during commissioning or product changeovers without swapping the cylinder or adding external stops.
For any load-holding requirements, note that the rear adjuster functions strictly as a travel stop and does not lock the load without live air. For secure positioning without continuous air pressure, consider an external rod lock, or explore the SAIL or BSAI cylinder series.
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 SAIJ80AX90-20S FAQ
At 0.5 MPa, this 80 mm bore cylinder provides 2513 N of push force and 2268 N of pull force. It can reach a maximum push force of 4523 N at 0.9 MPa.
The rear adjuster acts as a mechanical stop that lets you shorten the nominal 90 mm stroke by up to 20 mm, creating a 70 to 90 mm usable travel window. It sets the end position but does not hold the load without live air pressure.
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