Airtac SAIJ80 Adjustable Cylinder SAIJ80X190-20
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X190-20 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 SAIJ80X190-20
The AirTAC SAIJ80X190-20 is a double-acting, single-rod ISO 15552 profile cylinder featuring an integrated rear stroke adjuster. It delivers a robust 2513N push force at 0.5MPa, making it well-suited for heavy-duty positioning tasks. By turning the rear adjustment screw, you can fine-tune the effective travel window down from its 190mm nominal stroke, achieving a usable range of 170-190mm without adding external stops.
This 80mm bore variant incorporates a 25mm carbon steel rod and M20x1.5 rod thread, offering high rigidity and excellent resistance to side loads. The extruded aluminum barrel includes sensor grooves on both sides for direct mounting of CMSE reed or DMSE electronic solid-state switches. Mounting options span the reduced SAIJ set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X190-20 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X190-20 |
|---|---|
| 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 SAIJ80X190-20
| 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 SAIJ80X190-20 Is Used
Machine Changeover
Dial in the 170-190mm travel window during product size transitions to set precise end-stops without physically swapping cylinders.
Commissioning Calibration
Fine-tune the final retract position on heavy-duty assembly presses using the rear screw to perfect part seating.
Variable End Stops
Adjust the rejection stroke on a conveyor line to handle varying package lengths quickly and accurately.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X190-20 the Right Cylinder?
Choose this adjustable-stroke model when your machine setup requires precise end-position tuning during commissioning or product changeover, rather than relying on a fixed-stroke SAI cylinder. If your application requires less force, stepping down to a 63mm bore yields 1559N at 0.5MPa; if you need more clamping power, moving up to a 100mm bore provides 3927N. To match this exact configuration, specify an 80mm bore, 190mm stroke, 20mm adjustment range, PT tapered port thread, carbon steel rod, and no magnet.
Because the 190mm stroke approaches the mid-range of standard travel, ensure external guiding is used if the load imposes significant lateral leverage. Keep in mind that the rear adjuster functions strictly as a travel stop and the air cushions manage deceleration; neither will hold a load without live air pressure. For true fail-safe load holding, consider an AirTAC SAIL pneumatic lock or BSAI clamp-lock cylinder instead.
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 SAIJ80X190-20 FAQ
At a 0.5MPa operating pressure, this 80mm bore cylinder provides 2513N of push force and 2268N of pull force. It can deliver up to 4523N at 0.9MPa.
The rear adjuster screw acts as a mechanical stop that lets you shorten the 190mm nominal stroke by up to 20mm. This creates a usable travel window of 170-190mm, allowing you to fine-tune the end position at commissioning without external stops.
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