Airtac SAIJ80 Adjustable Cylinder SAIJ80BX220-40S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX220-40S 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 interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ80 mm
- Stroke220 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX220-40S
The AirTAC SAIJ80X220-40-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, enabling you to fine-tune the retract end position. It provides a usable travel window of 180 to 220 mm, letting you dial in the exact end-stop without adding external stops. This 80 mm bore model delivers robust thrust, generating 2513 N of pull force at 0.5 MPa and up to 4523 N at 0.9 MPa.
This SKU features a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet for position sensing. The rod diameter is 25 mm with an M20x1.5 thread, offering a robust interface that handles side loads well, though long unsupported strokes still require an external guide. It uses PT tapered ports sized G3/8 and operates at speeds of 30-800 mm/s.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX220-40S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX220-40S |
|---|---|
| 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 | 2268 N | 2268 N |
| 0.7 MPa | 3175 N | — |
| Max (@1.0 MPa) | 463 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ80 Adjustable Cylinder SAIJ80BX220-40S
| 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 SAIJ80BX220-40S Is Used
Machine Changeover
Dial in the 180-220 mm travel window during product size transitions on a packaging line without physically swapping the cylinder.
End-Stop Calibration
Fine-tune the retract position during commissioning to perfect a pressing or locating operation, avoiding the cost of external mechanical stops.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX220-40S the Right Cylinder?
Choose this 80 mm bore cylinder when your application requires the 2513 N pull force at 0.5 MPa, stepping up from a 63 mm bore that provides 1402 N. The adjustable stroke is ideal for machine setups requiring variable end-stops or product changeovers, whereas a fixed SAI cylinder locks you into a single dimension. For position feedback, the integrated magnet works seamlessly with AirTAC CMSE reed and DMSE electronic solid-state sensors.
When replacing an ISO 15552 cylinder, match the 80 mm bore, 220 mm stroke, 40 mm adjustment range, PT G3/8 port, and the -S magnet requirement. Note that the SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting FB, CA, CB, and CR. The rear adjuster acts only as a travel stop and does not hold the load without live air; for true load-holding, use an external rod lock or select the SAIL or BSAI 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 SAIJ80BX220-40S FAQ
The rear adjuster screw lets you shorten the effective stroke by up to 40 mm. This gives a usable travel window of 180 to 220 mm, allowing precise end-position tuning at commissioning without changing the cylinder.
At 0.9 MPa, the push force increases to 4523 N. The rear adjuster is a travel stop, not a lock, so it will not hold these loads without live air pressure.
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