CMC KUHNKE Digital Enamel Rater

Brought to you by CMC-KUHNKE, our specialist metal packaging testing brand, this manual digital enamel rater is perfect for inspecting food and beverage cans, aerosol cans, can ends, side seams, bottle caps and even tubes. 

The ENR-4000 enamel rater checks the lacquer permeability of cans and ends using current flow in milliamps (mA). Our customers across the beverage and metal packaging sectors rely on it to detect and correct any areas of metal exposure. 

Versatile can rating technology  

Our digital enamel rater is quickly and easily configured for the following:  

• Test voltage (4v, 6.3v or 10v) 
• Measurement range (0-250mA) 
• Test time (from 1 to 99 seconds) 
• Test polarity

You can choose between two hardware can rating test channels with separate electrical settings.  

Crystal clear can rating results 

The ENR-4000 enamel rater gives you easy-to-read and evaluate test results on a large LED screen.  

Transfer your enamel rater data for later!

The results of your can rating tests are securely saved and available for data transfer for a more detailed analysis. Transfer options include directly into a plant-wide data collection system, or for transfer directly into VISIONARY QC™ or other data acquisition software.

Can rating accessories

If you want some can rating calibration capability then you’ll want  our optional 100 ohm calibrated test resistor. We also makes lots of additional enamel rater accessories and fixtures for three-piece cans, two-piece cans, aerosol cans, can ends, side stripes, bottle caps, and even tubes. 

Programmable enamel rater test types

The ENR-4000 digital enamel rater allows you a multitude of programmable measurement events, including:  

• Contact control 
• Filling control 
• Measure duration  
• Current limits 
• Printout handling of one intermediate reading (two measurement duration)

Our can rating equipment portfolio   

We’ve been working with metal packaging for many decades and have developed all different types of can rating equipment for all manner of applications.  

When it comes to enamel raters, across the diverse portfolio of products we offer, we make have devices like the CMC-KUHNKE Eight Station Enamel Rater for rapid enamel testing of up to eight cans, can ends, crowns, or twist-off caps. We also make a whole suite of can rating enamel tester accessories and we would be pleased to talk through anything else you could possibly need – just get in touch!  

Can rating testing tips

Over many years of making enamel raters and can rating tools we’ve learnt a lot about metal packaging! We share some of this insight throughout the knowledgebase section of our website.  

How about a few blogs on the subject of metal cans and packaging? First up there’s this glossary of double seam defects. Then, if you’re wondering which type of metal packaging is right for your products, then try this article – 2-piece vs 3-piece cans: choosing the right packaging. Finally – just for fun – why not have a read of our popular history of the can-timeline?