Airtac SAIJ80 Adjustable Cylinder SAIJ80X220-40S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X220-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 220mm 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
- Stroke220 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80X220-40S
The AirTAC SAIJ80X220-40-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a usable travel window of 180 to 220 mm, letting you dial back the nominal 220 mm stroke by up to 40 mm during commissioning. Delivering 2513 N of push force at 0.5 MPa, it handles substantial actuation tasks while maintaining a standard ISO 15552 mounting footprint.
This variant includes a magnet for position sensing with AirTAC CMSE reed and DMSE electronic switches, which seat neatly into the sensor grooves machined on both sides of the extruded aluminum barrel. The carbon steel rod and M20x1.5 thread offer robust load transmission, while the PT tapered ports ensure a tight pneumatic seal. The rear adjuster acts purely as a travel stop, meaning live air pressure is always required to hold the load.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X220-40S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X220-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 220 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 SAIJ80X220-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×220 | 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 SAIJ80X220-40S Is Used
Machine Changeovers
Fine-tune the 180-220 mm travel window during product size transitions on a packaging line without physically swapping out the actuator.
End-Position Tuning
Dial in the exact retract distance by up to 40 mm at commissioning to compensate for mechanical wear or sensor drift over time.
Assembly Pressing
Leverage the 2513 N push force at 0.5 MPa for pressing components, using the adjustable stop to set precise insertion depths.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X220-40S the Right Cylinder?
Choose this 80 mm bore when a 50 mm bore (982 N push at 0.5 MPa) is insufficient for your moving mass, but a 100 mm bore (3927 N push) would be excessive overkill. The 40 mm adjustable range is ideal for product changeovers on a packaging line, allowing you to fine-tune the end position without physically swapping the cylinder or adding external mechanical stops. For strokes of 220 mm or longer, external guide rails are recommended to prevent side-load wear on the rod.
If your application requires the cylinder to hold its position without continuous live air pressure, note that the SAIJ rear adjuster is a stop, not a lock. In that scenario, select the SAIL pneumatic lock cylinder or a BSAI clamp-lock model instead. This SAIJ80X220-40-S model is dimensionally interchangeable with ISO 15552 cylinders, featuring an 80 mm bore, 220 mm stroke, 40 mm adjustment, PT G3/8 ports, and a -S magnet.
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 SAIJ80X220-40S FAQ
At 0.5 MPa operating pressure, this 80 mm bore cylinder outputs 2513 N of push force and 2268 N of pull force. The operational speed range is 30-800 mm/s, supported by variable air cushions at both ends.
The rear adjuster screw acts as a mechanical stop that shortens the effective travel from the 220 mm nominal stroke down to as little as 180 mm. This creates a 180-220 mm usable window, but it only decelerates the travel end; it does not lock the load without live air pressure.
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