Your top performer in the laboratory for wet grinding and milling of blocks and titanium abutments.
Thanks to its striking, updated look, the new N4+ is an eye-catching choice in any laboratory. We have also equipped it with a water-cooled spindle. That means you benefit from improved process stability, and you can always rely on first-class results even in continuous operation.
Axes
Discs
Blocks
Tools
“The N4 is the best possible entry into same-day dentistry and it has exceeded my expectations. It is extremely precise, fast, and it even mills titanium abutments – I work with it nearly every day and it has never let me down. For me, the N4 is the ideal machine for all practice labs who want to provide quality restorations to their doctors quickly and easily.”
“I was surprised how easy to operate and how reliable the N4+ is. The workflow is unbelievably fluid, in particular when milling disilicate crowns on implants, veneers, and inlays.”
The N4+ is an efficient wet processing machine for grinding and milling glass ceramic, composite, and zircon blocks, as well as CoCr and titanium abutments. It impresses not only thanks to its high precision and fast drives, but also thanks to its ultra-compact housing with closed fluid circuit. Eight fine nozzles on the spindle direct the cooling liquid precisely onto the effective area between the tools and workpiece, delivering an optimal cooling effect.
The tool magazine can be inserted quickly and effortlessly in just one step. The automatic changer offers space for up to eight tools. The three compartment block holder is another highlight. That makes the N4+ the ideal partner for research and practice laboratories.
Scientists at the University of Washington confirmed an outstanding precision of −10 μm to +26 μm during demanding applications like milling titanium abutments.
The large fluid tank can easily be removed from the drawer.
For crowns and bridges, inlays, onlays, abutments, veneers, table tops, etc.
vhf has been using high-quality 4-fold hybrid ceramic bearings for over ten years, particularly for machining metals. For you, this means a significantly longer spindle service life, higher surface quality and noticeably better accuracy of fit.
| composites | plastics | glass ceramics | zirconia |
| titanium | CoCr |
| crown/bridge | inlay/onlay | abutment | telescopic crown |
| model plate | model cast | occlusal splint | model tooth |
| implant bar | veneer | drilling template | denture |
| secondary crown | screw-retained bridge | protrusion splint |
Be sure to review local and/or national regulations and/or regulations by other authorized organizations or entities (e.g. professional associations, health authorities).
GENERAL
Wet machining
Glass ceramics, titanium, zirconia, composites, plastic materials – Blocks up to 45 × 20 × 20 mm
Crowns, bridges, fully anatomical crowns and bridges, inlays, onlays, abutments, veneers, table tops
BASE SYSTEM
Machine bed made of solid cast aluminum body
Sheet steel housing, white high-gloss lacquer finish, with working chamber flap and cooling liquid tank integrated in the drawer
4
Precision ball screws, rolled version · motors with resolution < 1 μm · ground precision guides made of steel · repetition accuracy ± 0.003 mm
Rotary axis with high run-out accuracy · rotation angle: 200°
4-axis simultaneous control electronics with continuous path progression and dynamic pre-calculation · hardware-based real-time operating system with standardized command set · FPGA-integrated processor · updateable hardware · real-time path calculation via dedicated hardware engines in the FPGA · four-quadrant control of the motors for particularly smooth running · multiple analogue and digital I/Os for controlling the peripherals · integrated inverter for synchronous and asynchronous motors, electronic gate detection · Ethernet and USB interface
RGB LED lighting with status display
Integrated in the working chamber for easy remote support and possibility of internal recording
SPINDLE
High-frequency spindle, synchronous, with pneumatic tool clamping · sealing air to prevent debris from entering · automatic cone cleaning
Up to 80,000 rpm
Peak power (Pmax): 800 watts · nominal power (S6): 600 watts · continuous power (S1): 440 watts
4-fold hybrid ceramic ball bearing · concentricity deviation at inner cone < 3 μm
Stainless steel collet with ceramic coating for tools with 3 mm shank diameter and max. 35 mm total length
AUTOMATION
Tool magazine for 8 tools, removable · length measurement and tool breakage monitoring via precision measuring key · access through working chamber door, safety lock
PROCESSING MODES
Multiple fluid nozzles on the spindle · integrated cooling liquid tank (3.5 litres) with active carbon filter system · flow-sensor for monitoring the liquid supply · purewater: no grinding additives necessary, except for titanium processing
CONNECTION REQUIREMENTS
4 bar: 25 l/min up to 8 bar: 45 l/min · air purity according to ISO 8573-1:2010
100 · 240 volts · 50/60 Hz, 640 watts
10/100/1000 Mbit/s BaseT port (auto-sensing) Ethernet via RJ-45 socket
ENVIRONMENTAL CONDITIONS
Between 10 °C and 35 °C
Max. 80 % (relative), non-condensing
APPROVALS
CE, VDE
UL 61010-1, CAN/CSA C22.2 No. 61010-1 (pending)
DIMENSIONS & WEIGHTS
364 × 460 × 473 mm · 364 × 667 × 473 mm with open flap and drawer
337 × 324 mm
52 kg
SCOPE OF DELIVERY
dentalcam software included
Abutment holders for various systems (optional)
Spindle service set · calibration set incl. micrometer · Tec Liquid set · brush for nozzle plate · cleaning brush · spare fine filter · active carbon pellets · Tec Powder (3 bags) · tool magazine inserts (2 pieces) · spare screws blank holder · torque wrench · emergency release key · drill bit (tool positions) · measuring pin · compressed air hose with pressure reducer · power cable · Ethernet network cable · carrying aid for transporting the machine · operating manual
