Airtac SAIJ80 Adjustable Cylinder SAIJ80X220-50
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X220-50 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 SAIJ80X220-50
The AirTAC SAIJ80X220-50 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a substantial 4523N push force at 0.9 MPa, making it well-suited for heavy-duty positioning tasks. By turning the external stopper screw, you can trim the nominal 220 mm travel back by up to 50 mm, creating a precise 170-220 mm usable window for end-position tuning.
This model uses a robust 25 mm carbon steel rod and M20x1.5 rod thread to handle high side loads, while the G3/8 PT port manages the air supply. The extruded aluminum barrel includes sensor grooves on both sides for direct mounting of position switches. It utilizes a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting FB, CA, CB, and CR brackets.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X220-50 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X220-50 |
|---|---|
| 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 SAIJ80X220-50
| 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 SAIJ80X220-50 Is Used
Product Changeover
Dial in the 170-220 mm stroke window during format changes on a packaging line, quickly setting new retract stops without changing hardware.
Heavy Pressing
Apply up to 4523N of push force at 0.9 MPa for assembling bearings or forming parts, with fine-tuning to prevent over-travel.
Conveyor Diverter
Actuate heavy sorting gates with the 25 mm rod, using the rear screw to perfectly time the retract distance for varying package sizes.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X220-50 the Right Cylinder?
Select this 80 mm bore when your application requires more thrust than the 63 mm bore (which delivers 2805N push at 0.9 MPa) but does not need the massive 7068N output of the 100 mm version. The 50 mm adjustment range is ideal for production lines running multiple product sizes, allowing you to fine-tune the retract end position during changeovers without swapping out the entire cylinder or adding external stops.
Since the 220 mm stroke is substantial, an external guide is recommended to support the load and prevent rod binding over extended travel. Remember that the rear adjuster functions strictly as a travel stop, not a lock; the SAIJ80X220-50 cannot hold a load without live air pressure. For true fail-safe load holding, consider the SAIL or BSAI series instead. This unit is dimensionally interchangeable per ISO 15552.
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 SAIJ80X220-50 FAQ
It features a rear adjuster screw that acts as a mechanical stop, allowing you to shorten the effective stroke by up to 50 mm. This creates a usable travel window of 170-220 mm, which is ideal for fine-tuning end positions at commissioning without swapping cylinders.
At an operating pressure of 0.9 MPa, the SAIJ80X220-50 delivers a push force of 4523N and a pull force of 4071N. At 0.5 MPa, the push force is 2513N.
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