N4+

The essence of wet grinding

The N4+ from vhf’s PERFORMANCE CLASS is an efficient wet processing machine for grinding and milling blocks made of glass ceramics, composites and zirconia as well as titanium abutments. It is impressive not only due to its high precision and fast drives, but also its ultra-compact housing with a closed fluid circuit. Eight fine nozzles on the spindle direct the cooling liquid precisely onto the effective area between the tools and the blank, delivering an optimal cooling effect with the cost-saving use of cooling liquid. The N4+ also has plenty of power for fast results. The machine’s spindle offers a strong 800 watts of power and can achieve rotational speeds of up to 80,000 rpm.

The top performer for your practice

These performance features make the N4+ the ideal machine for demanding wet processing and turned it into a best seller. You can process up to three blocks or prefabricated abutments consecutively, saving you valuable time for material changes. The N4+ is also the ideal addition to our K5+ specialist for dry milling discs. Combined, these two machines can handle almost any indication.

Screw channel manufacturing

Another highlight of the N4+: You can use it to easily drill screw-access channels for hybrid implant restorations in ceramic blocks. Their strength does not differ significantly from factory pre-drilled materials. In fact, such “meso” blocks are significantly more expensive and their nesting process more challenging. This gives you two advantages: greater ease of use alongside reduced costs.

With the N4+, your work is particularly sustainable – thanks to Purewater Technology, no grinding additives are required, except for titanium processing. 

Tested precision with the N4+

Scientists at the University of Washington confirm the N4+’s outstanding precision of -10 μm to +26 μm in the demanding milling of titanium abutments. Spindle bearings have a major impact on milling quality. That is why vhf uses a 4-fold hybrid ceramic bearing for the milling spindle – which is particularly advantageous for processing metals. You benefit from a longer spindle service life, better surface quality and accuracy of fit of your milled objects.

Compelling arguments? Lots of them!

The key features of the N4+  

• Around 40 machinable block materials from a great variety of manufacturers 
• 1300+ implant platforms for prefabricated titanium abutments from a wide range of manufacturers
• Ideal for practice labs milling and grinding in ultra–HD

• Premium spindle with 4-fold ball bearing made of hybrid ceramic for maximum concentricity

• Ultra-high rotational speeds of up to 80,000 rpm with 800 W of power

• Water cooling for perfect results, even in continuous operation 3 µm repetition accuracy

• Industrial-grade quality made in Germany with solid cast body

• Purewater Technology means no grinding additives required, except for titanium processing

• Work on up to 3 blocks up to 45 mm in length consecutively without reloading the mill

• Milling screw-access channels – saves costs for meso blocks

• Automatic changer for 8 tools

• Ultra-easy operation with DentalCAM and its open interface to CAD software and material