Airtac SAIJ80 Adjustable Cylinder SAIJ80X195-20S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X195-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 195mm 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
- Stroke195 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80X195-20S
The AirTAC SAIJ80X195-20-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that lets you fine-tune the effective travel down to a 175-195 mm window during commissioning. Equipped with a standard carbon steel piston rod and a PT tapered G3/8 port, it delivers 2513 N of push force at 0.5 MPa. The integrated -S magnet works directly with AirTAC CMSE reed and DMSE electronic sensors fitted into the dual-side sensor grooves.
This adjustable stopper allows precise end-position tuning without adding external stops or swapping the barrel. The rear adjuster acts purely as a travel stop to set deceleration endpoints, not as a lock, so it will not hold the load without live air. It uses the reduced SAIJ mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR brackets.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X195-20S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X195-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 195 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 SAIJ80X195-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×195 | 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 SAIJ80X195-20S Is Used
Machine Changeover
Dial in the 175-195 mm stroke window during product size changeovers to set new end positions without physically swapping cylinders or adding external stop blocks.
End-Position Tuning
Fine-tune the retract stroke at commissioning to perfect a 2513 N clamping or positioning action, absorbing mechanical tolerance variations on the line.
Adjustable Ejector
Serve as a variable pneumatic ejector where the exact ejection distance needs on-the-fly adjustment, using the rear screw to set the precise travel limit.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X195-20S the Right Cylinder?
Choose this 80 mm bore when an application requires 2513 N of thrust at 0.5 MPa and you need to dial in a specific 175-195 mm end position on the fly. If your fixture needs less force, step down to a 63 mm bore which yields 1559 N. If you require higher clamping power, the 100 mm bore provides 3927 N. Because the 195 mm stroke is under the 300 mm side-load threshold, the 25 mm rod handles normal guiding, though long unsupported loads still need an external guide.
An adjustable-stroke SAIJ is preferred over a fixed SAI cylinder when you anticipate product changeovers or need precise mechanical tuning at setup. To replace an ISO 15552 cylinder, match the 80 mm bore, 195 mm stroke, 20 mm adjustment, PT G3/8 port, and -S magnet. For load-holding without live air pressure, select a SAIL or BSAI locking cylinder instead of relying on this rear stopper.
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 SAIJ80X195-20S FAQ
The rear adjuster screw lets you shorten the 195 mm nominal stroke by up to 20 mm, creating a 175-195 mm usable travel window. It functions as a mechanical stop to tune the end position and does not lock the load without live air.
At 0.5 MPa, it provides 2513 N of push force and 2268 N of pull force. At the maximum operating pressure of 1.0 MPa, the push force reaches 5026 N.
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