General safety instructions
Intended use
The machine and the manufacturing software
Term for the software package consisting of DentalCAM and DentalCNC. are designed for the commercial processing of dental-technical objects. The finished objects require further processing before they can be used on the patient.
The machine is designed for wet and dry machining.
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The machine is validated for use with DentalCAM & DentalCNC applications as manufacturing software
Term for the software package consisting of DentalCAM and DentalCNC..vhf allows the use of a third-party software instead of DentalCAM. If you use third-party CAM software, the manufacturer of this software is solely responsible for the safe and proper calculation of the machining commands.
Do not use any other solution instead of DentalCNC .
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Under certain circumstances, the use of this machine may be subject to legal requirements. Observe the applicable local and national regulations, as well as the requirements of other appropriate authorized organizations or agencies (e. g., professional associations, health authorities). Obtain authorization from the appropriate organization (e.g., professional associations, health authorities) as needed. For all materials machined with this machine, observe the material's instructions for use with respect to the intended use and all related software and machining procedure requirements.
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Do not manufacture implants or parts of objects that will later touch implants. In the case of two-part abutments, this includes the part which has the connection geometry to the implant. Do not manipulate the connection geometry of prefabricated abutments and always check finished objects for correct connection geometries (i.e. connection geometries of finished jobs were not damaged).
Certification
The CNC milling machine E4 bears the CE mark in accordance with the provisions of the following directives:
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- 2006/42/EC |
Machinery Directive |
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- 2014/30/EU |
EMC Directive |
The CNC milling machine E4 bears the UKCA mark in accordance with the provisions of the following directives:
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Supply of Machinery (Safety) Regulations 2008 |
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Electromagnetic Compatibility Regulations 2016 |
The complete declarations of conformity are enclosed with your machine.
Approved materials
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Use only the following materials, regardless of what is displayed in the manufacturing software
Term for the software package consisting of DentalCAM and DentalCNC.:
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Composites |
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Glass ceramics |
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Wax and plastics (PMMA) |
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Zirconia |
User skills
| Action | Necessary qualification |
|---|---|
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Using DentalCAM |
Persons trained in dentistry |
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Using the machine / DentalCNC for manufacturing dental objects |
Instructed persons Activity must be supervised by a person with dental training |
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Using the machine / DentalCNC for cleaning and maintenance |
Instructed persons |
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All other activities described in the operating instructions |
Instructed persons |
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Service work / preventive maintenance* |
vhf-authorized service technicians |
* Further information on maintenance: ο Maintenance
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Before installation, putting into operation and maintenance of the machine, read all the documents provided for the machine.
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If the use of the machine is unclear in whole or in part, do not use the machine and contact customer service.
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Make sure that every user has access to this document.
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Instruct every user on safe and proper machine handling.
Personal injury
Electric shock
Electric shock due to touching live parts
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Remove the housing of the machine only for necessary repairs. Keep the following order:
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Switch off the machine at the main power switch.
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Disconnect the machine from all lines.
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Remove the housing.
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Carry out the necessary repair.
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Install the housing.
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Connect the machine to all lines.
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Switch on the machine at the main power switch.
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Only have qualified electricians work on any electrical equipment.
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Make sure that an operational residual current device is installed on the electrical circuit of the machine.
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Run electrical cables so that they cannot be damaged by sharp edges.
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Check the power cable and the socket for damage before every startup.
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In the following cases, disconnect the machine immediately from the electrical source and secure it against restarting:
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When machine connections or electrical cables are damaged
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When liquid is leaking
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Before you check or run electrical cables
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Do not touch the machine and especially the cables with wet or damp hands.
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Do not place any liquid containers on the machine.
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Never place any machines or devices that are electrically powered underneath the machine.
Electric shock when disconnecting the power cable with the main power switch in βONβ position.
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Follow the following sequence:
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Switch off the machine at the main power switch.
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Disconnect the power cable.
Fire hazard
Unattended operation
- Do not operate the machine unattended unless:
- The working chamber of the machine is completely cleaned.
- Unauthorized persons have no access to the machine.
- The room in which the machine is located has an automatic fire detection system.
Housing
Danger of becoming trapped due to moving housing parts
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Working chamber door
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Cooling liquid tank
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Dry machining tank
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If you move these housing parts, use only the designated grip points.
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Make sure that your hands do not become trapped during movement.
Working chamber
Crushing hazard due to moving machine parts in the working chamber
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Only operate the machine with the working chamber door fully closed and intact.
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Do not bypass or deactivate the safety devices of the machine.
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Check the machine regularly for damage, especially the safety devices.
Danger of cutting and burning
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Always wear gloves when performing manual work on the machine or when working with blanks / tools.
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Only touch tools on the shaft.
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Do not touch the spindle body after machining.
Respiratory disease due to machining residues
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Do not use compressed air to clean the working chamber.
Risk of injury due to flying splinters
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Do not use compressed air to clean the working chamber.
Air extraction system
Respiratory disease when machining harmful materials
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Always use a suitable air extraction system during dry machining.
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Use a suction unit with fine class M dust filter.
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Avoid materials that are hazardous to your health.
Danger due to explosive dust atmospheres
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Always use a suitable air extraction system during dry machining.
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Process only materials that you can select from the manufacturing software
Term for the software package consisting of DentalCAM and DentalCNC..
Operating noise
Hearing loss and tinnitus due to regular loud working noises
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If loud working noises cannot be prevented, use an ear protector during machining.
Maintenance and troubleshooting
Risk of injuries from machine malfunctions due to inadequate or incorrect maintenance / troubleshooting
- Perform the maintenance tasks according to the maintenance table.
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Do not troubleshoot while the machine is running.
Spare parts, extra equipment and accessories
Risk of injuries due to unsuitable spare parts / extra equipment Physical component which must be obtained separately and which adds new functionality to your machine. / accessories
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Use only original spare parts, original extra equipment
Physical component which must be obtained separately and which adds new functionality to your machine. and original accessories for the machine.
Material damage
Spindle
Damage caused by the warm-up phase being omitted
When initially starting a machine or if it has not been used for at least 2 weeks, you must warm up the spindle before use.
Damage due to poor maintenance
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Clean and replace the collet chuck according to the maintenance table.
Damage caused by unsuitable tools
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Recommendation: Use only original tools from vhf.
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Use tools only within the maximum lifetime shown in DentalCNC.
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See the requirements in the chapter Technical data.
Impact damage
- When working in the working chamber, do not apply force to the spindle in any way.
DentalCAM & DentalCNC software
Machine damage due to incompatibility, malfunctions and/or incorrect operation of the software
- Always use the latest version of the program that your machine supports according to vhf.
- Ensure that your CAM computer The computer that is connected to your machine and which runs DentalCAM and DentalCNC. meets all system requirements.
- Before installing or operating the machine, read the documentation for the programs.
Power
Damage to the control electronics due to strong mains voltage fluctuations and voltage peaks
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Connect the machine to a separately protected circuit or ensure that no devices are connected that cause severe mains voltage fluctuations when powered on.
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If strong voltage fluctuations cannot be avoided, install a surge protector to safeguard the machine against strong voltage fluctuations.
Wet machining
Damage to machine, tools and blanks due to wet machining with or without unsuitable cooling liquid
- Always fill with sufficient cooling liquid that meets the requirements in the corresponding chapter.
- Change the cooling liquid as described in the corresponding chapter and in the maintenance table.
- If you use a cleaning agent to clean the tank, ensure that no residues of it remain in the tank.
Air extraction system
Machine damage during dry machining without an air extraction system
- Always use a suitable external air extraction system during dry machining.
Working chamber
Damage to tools and blanks as well as defective machining results due to job cancelations
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Ensure that all operating parameters are within the permissible range during the entire machining process.
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Make sure your network is non-disruptive. Wireless connections are not as reliable as wired networks.
Machine damage caused by broken tool and blank parts
- Carefully check all blanks and tools for damage.
Damage to components in the working chamber due to compressed air
- Do not use compressed air to clean the working chamber.
Working chamber door
Damage caused by improper handling
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Only open a locked working chamber door via emergency release.
