SCHLICK Anti-Bearding Technology

SCHLICK Anti-Bearding Technology the patented SCHLICK ABC-technology now with perfect downscaling. Innovative product design for perfect spraying.

Source http://www.myschlick.com/en/pharma-foodwelt/580/patented-abc-technology/

SCHLICK Anti-Bearding Technology –

the patented SCHLICK ABC-technology now with perfect downscaling

Innovative product design for perfect spraying

No product build-up thanks to the SCHLICK Anti-Bearding-Cap (ABC)
Perfect up- and downscaling for perfect production processes
Optimal homogenous and reproducible spray results
GMP design: Simple construction (7 individual parts + 4 O rings)
Cleaning needle to standard
Available with liquid return system
Extremely easy to adjust for maximum flexibility
Materials with surface quality of Ra < 0.8, which are FDA compliant 1.4404 (AISI 316L)

Use this perfect nozzle technology right from the smallest batch size

The SCHLICK Anti-Bearding Technology® design offers optimum operating security within coating-facilities. The so-called „Anti-Bearding Cap“ (ABC), crucially prevents turbulence in the area of the air cap and the nozzle exit, by means of its novel rounded shape. Perfect up- and downscaling: Using the complete SCHLICK Anti-Bearding Technology® the specially designed and patented ABC nozzles support capacities from 1 to 180 g/min. The SCHLICK ABC nozzles have been developed for drums sizes from 8.5” to 24".

Perfect 'beardless' spraying

Build-up, caking, „bearding“ or clogging of the nozzle exit are prevented as far as possible in this way. Interruptions to the coating process, as a consequence of cleaning work on the nozzle, are almost completely omitted. The SCHLICK ABC spray features an exceedingly homogenous liquid distribution, in a simultaneously very fine, uniform and reproducible drop size distribution.

Conventional flat spray nozzle

Air cap with „horns“
Typical bearding
Air ducts are clogged
Spraying pattern is impaired

Schlick ABC nozzle

Anti-bearding cap (ABC) without „horns“
No bearding, only fine coating
Free air ducts
Optimal spraying pattern

A comparison of the flow patterns reveals that the dust particle flow (simulated here in the form of fog) stays away from the anti-bearding cap better than it does from the conventional flat spray cap.

Standard flat spray cap

Schlick Anti-Bearding Cap (ABC)

ABC spray: perfect droplets in the laboratory and production

The ideal ABC spray is characterised by a very even ellsis. This is achieved by means of a balance between the pressures – the forces of the atomising air (AA) and the pattern air (PA).

In the following figure, the various specifications of the different sprays and their characteristics are depicted by removing 200 mm from the nozzle exit.

The round jet occurs without the introduction of pattern air
The extreme flat spray occurs when the proportion of pattern air (PA) is too high
The ideal ABC spray occurs when there is a balance between atomising air and pattern air

Round jet:

Over-humidification in the centre (high flow rate density) Finest drops in the area at the edges

Extreme flat spray:

Side jets with a high volume current density, overlapping spray patterns lead to the edges being too wet, large droplets, and a fine coverage in the centre

Ideal ABC spray:

Even drops

The right pressure means the right spray

The optimal pressure for atomising and pattern air is controlled by the parameters, quantity of liquid, density and viscosity as well as solid content: You must accommodate the respective application.

The bore diameter of the nozzle should be dependent on the viscosity of the liquid. Here is an example for the production nozzle (The values given in the tables are recommendations):

Posted on Wednesday 4th July 2018, in Industry Articles Latest News

PTK Coating - SCHLICK Anti-Bearding Technology