3Bx Blocker, National Optronics

•  Industrial high speed operation

•  Ergonomic design

•  Multiple block configurations

•  Parallax and distortion-free blocking

3Bx BLocker, National Optronics

Automatic finish blocker


Industrial Construction

The 3Bx is designed with few moving parts for simplified, continuous operations and minimal downtime. The large

split screen and integrated keypad design make the

3Bx a unique and ideal finish blocker.


Automatic Finish Blocking

Unique design utilizes imagery projection to display the lens image over the LCD layout screen, guiding the operator to an exact lens layout position. Custom blocking options include geometric center, optical center or manual placement.


Parallax and Distortion-Free Blocking

Accidental refraction is reduced by projecting the image of the front surface of the lens. Lens is blocked with front surface down, avoiding lens damage and blocking errors due to lens imbalance.


Ergonomic Design

Large heads up display provides the operator with an ergonomic operating position. Ergonomics are furthered

with a foot switch to initiate the blocking process.


Block Configuration

The 3Bx can be configured to any metal or plastic

block design.


3Bx Blocker, National Optronics

Industrial construction, ease of use, high production capability and accuracy make the 3Bx the most widely used and successful, semi-automatic finish blocker in the industry. The 3Bx is backed by the industry’s most reliable service and support team.

Additional Features

  • Store up to 200 jobs
  • Split screen to easily view lens layout and job data
  • One year parts and labor warranty



  • Barcode scanner
  • Multiple block configuration



  • OMA / VCA interface
  • Stand alone



  • Power: 100-240 VAC, 50-60Hz
  • Height: 18.0” (46.0 cm)
  • Depth: 18.8” (47.5 cm)
  • Width: 8.5” (21.7 cm)
  • Weight: 19.0 lbs (8.6 kg)

Phone:  800-800-1550

Email:  cs.na@dactechnologies.com

Address:  3630 West Miller Road, Suite 350

                Garland, TX 75041

© 2018 National Optronics All Rights Reserved