Airtac SAIJ80 Adjustable Cylinder SAIJ80X195-50S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X195-50S 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 SAIJ80X195-50S
The AirTAC SAIJ80X195-50-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers a robust 3518N push force at 0.7 MPa, featuring a 25mm carbon steel rod and G3/8 PT ports. The integrated -S magnet enables precise position detection using AirTAC CMSE reed or DMSE electronic solid-state sensors.
With a nominal 195mm stroke and a 50mm adjustment range, this SKU provides a usable travel window of 145-195mm. This built-in rear stopper allows you to fine-tune the retract end-position during commissioning without adding external stops. It utilizes variable air cushions at both ends for controlled deceleration, while the extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X195-50S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X195-50S |
|---|---|
| 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 SAIJ80X195-50S
| 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 SAIJ80X195-50S Is Used
Product Changeovers
Dial in the 145-195mm travel window during format size changes on packaging lines without swapping out the entire actuator.
End-Position Tuning
Fine-tune the retract stroke at machine commissioning to perfect seating forces, utilizing the 50mm rear stopper for exact placement.
Assembly Pressing
Leverage the 3518N push force at 0.7 MPa for pressing bearings or pins, adjusting the depth precisely to accommodate different part tolerances.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X195-50S the Right Cylinder?
Choose this 80mm bore when an application requires higher thrust than a 63mm cylinder (which provides 2182N push at 0.7 MPa), but without the larger footprint of a 100mm unit. The adjustable 145-195mm travel window is ideal for product-size changeovers on a line, whereas a fixed-stroke SAI cylinder is better suited for dedicated single-purpose tasks. For exact ISO 15552 replacement matching, verify the 195mm stroke, 50mm adjustment, G3/8 PT port thread, and the -S magnet requirement.
Because the nominal stroke is under 300mm, side-load risks are moderate, though the 25mm rod and M20x1.5 thread provide excellent rigidity for off-center loads. Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air; for pneumatic locking without pressure, consider the SAIL or BSAI series. Available mountings include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ80X195-50S FAQ
At 0.7 MPa operating pressure, this 80mm bore cylinder provides 3518N of push force and 2268N of pull force. At 0.9 MPa, the push force increases to 4523N.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the effective stroke from the nominal 195mm down to 145mm. This creates a 145-195mm usable travel window for fine-tuning the end position without using external stops.
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