Automatic Blocker

This efficient automatic blocker, designed for higher volume applications, is a “hands off” unit, which eliminates operator variability.

• Wax/pitch dispensing is precision-controlled, as is wax thickness. The compound is continuously mixed to keep it homogenous, ensuring an accurate, repeatable pitch/wax application.
• The innovative technology is based on safety and repeatability, so the blocker automatically closes the collet and seats the blank, with a safety interlock for operation.
• The blocker, with four alignment axes, is designed to deliver long-term precision for spherical and prism lenses.
• It can be used as a prism blocker with cylinder axis layout, and it easily adjusts for button tilt and radial run-out.

It requires only a single calibration at setup.


• The smart air-actuated, pressure-controlled collet automatically adjusts to any standard 1/2 blank at consistent pressure without warping or crimping the lens.
• The dead-length-stop provides precise thickness for high volume production
• A digital gauge measures to .001 mm with uninterrupted memory.
• The durable cast iron construction assures stability of operation.
• Custom models are also available.

Power: 115 VAC (220 V version available)

14" x 14" x 18" (360 mm x 360 mm x 460 mm)

Weight: 65 lbs. (30 kg)

Air required: 100 psi (7 bar)

Collets: Customer specified (special adapters available)

Click here to download the setup tutorial for the Automatic Blocker.