Airtac SAIJ80 Adjustable Cylinder SAIJ80AX225-40S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX225-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 225mm 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
- Stroke225 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX225-40S
The AirTAC SAIJ80X225-40-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel anywhere between 185 and 225 mm. Delivering a robust 3518N push force at 0.7MPa, it handles heavy loads while allowing precise end-position calibration during commissioning.
This variant features a SUS420J2 stainless steel rod for superior corrosion resistance and includes a magnet for CMSE reed and DMSE electronic sensors. The extruded aluminum barrel integrates sensor grooves on both sides, and the PT G3/8 tapered ports ensure a tight pneumatic connection for high-speed 30-800 mm/s operations.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX225-40S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX225-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 225 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 SAIJ80AX225-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×225 | 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 SAIJ80AX225-40S Is Used
Variable End-Stop Positioning
Dial in the exact retract distance between 185 and 225 mm during machine setup to accommodate varying material thicknesses without mechanical rebuilds.
Product Size Changeovers
Quickly reconfigure the stroke length on packaging lines when switching between different carton sizes, minimizing downtime and maximizing throughput.
Commissioning Fine-Tuning
Trim the travel back by up to 40 mm to perfectly align the tooling endpoint, compensating for mechanical tolerances without swapping cylinders.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX225-40S the Right Cylinder?
Choose this 80mm bore when a 50mm bore falls short of the required 1374N push force at 0.7MPa, but you want to avoid the bulk and higher air consumption of a 100mm bore. The 40mm adjustment range is perfect for applications needing a variable end-stop for product changeovers, saving you from swapping out a fixed-stroke SAI cylinder or adding bulky external stops.
Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air pressure; for fail-safe load holding, consider an SAIL or BSAI cylinder. Because the usable stroke is 225mm, you should guide the load externally to prevent excessive side loads on the M20x1.5 rod thread. This cylinder is dimensionally interchangeable per ISO 15552 mounting interfaces, supporting 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 SAIJ80AX225-40S FAQ
At a 0.7MPa operating pressure, this 80mm bore cylinder provides a push thrust of 3518N and a pull thrust of 2268N. It can reach a maximum push force of 4523N at 0.9MPa.
A rear adjusting screw acts as a mechanical stop, allowing you to shorten the nominal 225mm stroke by up to 40mm. This creates a usable travel window of 185-225mm, which is set at commissioning and does not lock the load without live air pressure.
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