With CB nano, the SCHNEIDER Nano Line is extended by a small manual blocking solution rounding out the broad range of capabilities of the line.

Despite its small size and low investment, CB nano covers the full range of blocking requirements. It blocks plano, prism, centered, de-centered, single vision, bifocal and front progressive lenses with ease.

An optional video-based positioning and centering system assists the operator to guarantee precise block/lens alignment.

Just like its surfacing and coating counterparts it is a highly cost-effective system, providing maximum ease of use at a very small footprint – the ideal solution for startups and partner labs.

Technical Data

lens diameter

up to Ø 80 mm

lens material

all organic materials and mineral lens materials

blocking diameter

48 – 68 mm (special rings upon request)

blocking height

7 – 10 mm

blocking material


clamping system

block Ø 43 mm


prescription value up to 5°, with the help of prism rings

power consumption

0.2 kVA avg.

air requirement

min. 6 bar (87 psi)

machine weight

approx. 25 kg (56 lb.)

dimensions (width x depth x height)

approx. 330 x 495 x 350 mm (13 x 20 x 14 inches)

All data subject to change without notice. Please verify details with SCHNEIDER.


  CB nano
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