Airtac SAIJ80 Adjustable Cylinder SAIJ80X220-40
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X220-40 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 SAIJ80X220-40
The AirTAC SAIJ80X220-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It delivers a robust 2513N push force at 0.5MPa, utilizing a 25mm carbon steel rod and G3/8 PT ports. The integrated -40mm adjustment mechanism creates a usable travel window of 180 to 220mm, enabling precise end-position tuning at commissioning without physically swapping the cylinder or adding external stops.
This adjustable-stroke design acts purely as a mechanical stop and deceleration point, meaning it will not hold a load without live air pressure. The extruded aluminum barrel includes sensor grooves on both sides for direct mounting of CMSE reed and DMSE electronic sensors. It supports a reduced mounting subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR options.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X220-40 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X220-40 |
|---|---|
| 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 SAIJ80X220-40
| 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 SAIJ80X220-40 Is Used
End-Position Tuning
Dial in the exact retract distance within the 180-220mm window during machine commissioning to accommodate varying product dimensions without disassembling the actuator.
Product Changeover
Quickly adjust the stroke stop on packaging lines when switching between different package sizes, using the rear screw to set new end limits rapidly.
Assembly Pressing
Apply up to 2513N of push force at 0.5MPa for pressing bearings or pins, while trimming the travel back by up to 40mm to prevent over-travel and part damage.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X220-40 the Right Cylinder?
Select this 80mm bore when an application requires high thrust (up to 2513N at 0.5MPa) alongside variable end-stop positioning. If your force requirements are lower, stepping down to a 63mm bore yields 1559N, whereas moving up to a 100mm bore provides 3927N. The SAIJ80X220-40 is chosen over a fixed SAI model specifically for product changeovers or fine-tuning the retract end position during setup.
Because the nominal 220mm stroke falls below the 1500mm maximum standard stroke, it is a stock configuration. However, at 220mm of travel, the 25mm rod and M20x1.5 thread still carry appreciable side loads; for any extended unsupported travel, an external guide rail is recommended to prevent premature seal wear. For applications needing true load-holding without live pressure, consider the SAIL or BSAI series instead of relying on this adjuster.
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 SAIJ80X220-40 FAQ
At an operating pressure of 0.5MPa, this 80mm bore cylinder provides a push force of 2513N and a pull force of 2268N. The maximum push force is 4523N at 0.9MPa.
The rear adjuster screw acts as a mechanical stop that allows you to shorten the nominal 220mm stroke by up to 40mm, giving an effective travel range of 180 to 220mm. It is a travel stop, not a lock, and does not hold the load without continuous air pressure.
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