Airtac SAIJ80 Adjustable Cylinder SAIJ80X190-40
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X190-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 190mm 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
- Stroke190 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80X190-40
The AirTAC SAIJ80X190-40 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 25 mm carbon steel rod and delivers 2513 N of push force at 0.5 MPa, making it a robust choice for heavy-duty positioning. By turning the rear screw, you achieve a usable travel window of 150 to 190 mm, allowing precise end-position tuning without adding external stops.
This extruded aluminum profile cylinder includes variable air cushions at both ends to decelerate the load smoothly. The rear adjuster acts purely as a travel stop and does not hold the load without live air pressure. It supports a speed range of 30-800 mm/s and uses a PT G3/8 port, with sensor grooves on both sides for flexible switch mounting.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X190-40 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X190-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 190 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 SAIJ80X190-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×190 | 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 SAIJ80X190-40 Is Used
Product Changeover
Dial in the 150 to 190 mm travel window during format changes on a packaging line, using the rear screw to set new end positions rapidly without changing hardware.
Assembly Pressing
Leverage the 2513 N push force at 0.5 MPa for pressing operations, using the fine stroke adjustment to control the exact depth of engagement for delicate components.
Diverting Mechanisms
Actuate diverter gates on conveyors where the required reach varies by package size, relying on the adjustable stop to tune the exact extension distance.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X190-40 the Right Cylinder?
Choose this 80 mm bore when an application requires more thrust than a 63 mm cylinder (which provides 1559 N push at 0.5 MPa), but without stepping up to the larger 100 mm size. The 40 mm adjustment range is ideal for machine setups requiring variable end-stops during product changeovers, replacing the need to swap out a fixed-stroke SAI cylinder. When ordering, confirm the 190 mm stroke, 40 mm adjust code, PT G3/8 port, and the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2).
Because the 190 mm stroke approaches the threshold where rod deflection becomes a concern, ensure adequate external guiding for any heavy side-loads. Remember that for load-holding without continuous air pressure, you must integrate an external rod lock or select a SAIL or BSAI cylinder, as the SAIJ adjuster is not a locking mechanism.
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 SAIJ80X190-40 FAQ
At 0.5 MPa operating pressure, this 80 mm bore cylinder provides 2513 N of push force and 2268 N of pull force. It can deliver up to 4523 N of push force at its maximum 0.9 MPa pressure.
The rear adjuster screw allows you to shorten the nominal 190 mm stroke by up to 40 mm, creating a usable travel window of 150 to 190 mm. This stopper fine-tunes the retract end position at commissioning but does not lock the load without live air pressure.
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