PERFORMANCE CLASS

K5: The classic for dry milling.

Your top performer in the laboratory for dry processing of blocks and discs.

The powerful machine with a wide range of indications.

The K5 from the vhf PERFORMANCE CLASS is our classic in the field of five-axis dry milling. It has become indispensable in dental laboratories, especially in the field of demanding zirconia processing.

With the K5, you get a highly reliable machine that will mill your demanding laboratory work to a high quality.

Axes

Disc

Blocks

Tools

Axes

Disc

Blocks

Tools

Highlights

The solid dry milling machine

The K5 impresses above all with its rock-solid construction with a solid cast body, the large rotation range of its B-axis of up to ± 35 degrees and the ability to process discs with a thickness of up to 40 mm. For you, this not only means first-class machining quality, but also a great variety of indications.

Keeping it all together

The machine’s practical accessory drawer keeps tools and material blanks neatly organized and ready to hand. An Administrated Tool Board for milling tools, which is actively managed via the dentalcam software, is also integrated into the drawer.

For XXL discs

The K5 fixes discs up to 40 mm thick: you benefit from the greatest possible variety of indications. And with the corresponding holders, you can also fabricate block materials and prefab abutments from CoCr.

Features

Exceptional precision

Restorations in ultra HD
Premium spindle with four-fold ball bearing made of hybrid ceramic for the highest concentricity
3 μm repetition accuracy

Powerful and robust

Mills the toughest materials on the market, incl. CoCr
Powerful 500 W, 60,000 rpm spindle
Heavy industrial quality for maximum rigidity
Solid cast body for the lowest vibrations

Maximum independence

Sheer unlimited material accessibility in 98 mm disc format, separate block and prefab abutment holders available
Covers the broadest range of indications, due to ± 35° rotation angle in the 5th axis, and blanks up to 40 mm thickness (metals up to 22 mm)

Outstanding reliability

100 % engineered and manufactured in Germany
Sophisticated sealing air concept to protect mechanics, electronics, and spindle
24-month warranty

Highly economical

Automatic changer for 16 tools
Ethernet interface for stable connection
Very easy operation via provided dentalcam software with directmill Technology – no license fees
Excellent cost-performance ratio

Did you know?

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.

Material, manufacturer, indication.

Enjoy the freedom of choice.*

Indication

Crown \| Bridge	Inlay \| Onlay	Veneer
Occlusal splint	Full denture	Denture framework
Implant bar	Abutment	Screw-retained crown
Screw-retained bridge	Surgery guide	Primary crown
Secondary crown	Model plate	Model tooth die

Material

Composites
Plastics \| Wax
Glass ceramics
Zirconia
Titanium
CoCr

*Be sure to review local and/or national regulations and/or regulations by other authorized organizations or entities (e.g. professional associations, health authorities)

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K5: The classic for dry milling

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Comparison overview: Milling and grinding machines

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Technical Data

GENERAL

Fields of application

Dry machining

Materials

Plastic materials, wax, zirconia, composites, CoCr, model plaster
– Blanks, height 10-40 mm (CoCr up to 22 mm), diameter 98.5 mm
– Blocks up to 45 × 20 × 20 mm

Indications

Crowns, bridges, fully anatomical crowns and bridges, inlays, onlays, abutments, telescopic crowns, models, model castings, occlusal splints, implant bars, veneers, drilling templates, dentures, table tops etc.

BASE SYSTEM

Construction

Machine bed made of solid cast aluminum body

Housing

Sheet steel housing, white high-gloss lacquer finish with working chamber flap and accessories drawer

Number of axes

Linear axes X-/Y-/Z-axis

Precision ball screws, rolled version · motors with resolution < 1 μm · ground precision guides made of high-alloyed steel · repetition accuracy ± 0.003 mm

Rotary axis A-axis

Backlash-free Harmonic-Drive® with the highest angular precision · rotation angle: 360°, infinite

Rotary axis B-axis

Precision ball screw with rotary transmission · rotation angle: ± 35° · axis arrangement in the workpiece

Control unit

5-axis simultaneous control electronics with continuous path progression and dynamic pre-calculation · hardware-based real-time operating system with standardized instruction 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

Lighting

RGB LED lighting with status display in the working chamber

Camera system

–

ATB

Integrated Administrated Tool Board (ATB) for 30 tools

SPINDLE

General

High-frequency spindle, synchronous with pneumatic tool clamping · sealing air to prevent debris from entering · automatic cone cleaning

Speed

Up to 60,000 rpm

Power

Peak power (Pmax): 500 watts · nominal power (S6): 450 watts · continuous power (S1): 300 watts

Bearing

4-fold hybrid ceramic ball bearing · concentricity deviation at inner cone < 3 μm

Collet

Stainless steel collet for tools with 3 mm shank diameter and max. 40 mm total length

AUTOMATION

Tool change

Tool magazine for 16 tools · length measurement and tool breakage monitoring via precision measuring key · access via working chamber flap, safety-locked

PROCESSING MODES

Dry

Air nozzles on the spindle · hose connection for external suction unit on the side of the housing · vacuum sensor for monitoring the
suction unit · 24 V switch output for controlling suction units · manual disc change

CONNECTION REQUIREMENTS

Compressed air

6 bar: 50 l/min to 8 bar: 64 l/min · air purity according to ISO 8573-1:2010

Power

100-240 volts · 50/60 Hz, 640 watts

Extraction System

Extraction filter class M, 2,500 l/min extraction capacity at 220 hPa

Data

10/100/1000 Mbit/s BaseT port (auto-sensing) Ethernet via RJ-45 socket

ENVIRONMENTAL CONDITIONS

Operating temperature

Between 10 °C and 30 °C

Air moisture

Max. 80 % (relative), non-condensing

APPROVALS

All models

CE, VDE

North America model

UL, FCC (according to ANSI/UL 61010-1)

DIMENSIONS & WEIGHTS

Dimensions (W/D/H)

455 × 550 × 630 · 455 × 550 × 711 mm with open flap and drawer

Footprint (W/D)

372 × 258 mm

Weight

91 kg

SCOPE OF DELIVERY

CAM Software

dentalcam software included

Holder systems

3-fold block holder

Accessories

Spindle service set · calibration set incl. stirrup measuring screw · working area crevice nozzle · tool magazine inserts (2 pieces) · spare screws · tool magazine cover · Torx and Allen wrenches · 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