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High temperature dental porcelain oven series
Set research and development, production, sales, service as one of the formal electric furnace manufacturing base

High temperature dental furnace lyl-20dkl

Brief introduction

High temperature dental furnace lyl-20dkl introduces advanced technology, independent research and development of energy-saving, environmental protection new electric furnace, the appearance of the equipment is beautiful and generous, the structure is advanced and reasonable, the operation is simple and convenient, the shell is made of high-quality cold-rolled steel plate, processed by advanced CNC machine tool, luxurious and beautiful double-color imported epoxy powder electrostatic spraying process, high-temperature resistance, corrosion resistance, long-term color fading.

The furnace has the advantages of uniform temperature field, double layer heat resistance furnace body surface temperature close to room temperature, adjustable heating rate, etc. the furnace is made of imported high temperature composite fiber material by numerical control technology. It has strong thermal shock resistance, strong cold and heat resistance, good corrosion resistance, no collapse, no crystallization, no slag, no pollution and long service life.

The control system adopts microcomputer intelligent regulation technology, with PID regulation, automatic control, self-tuning function, multi-stage programming, and can program various heating, constant temperature and cooling programs, with high temperature control accuracy, high energy saving and high stability.

The protection device adopts independent protection: (over temperature, over pressure, over current, broken couple, power off, leakage, short circuit, etc.).

In addition, through the control software independently developed by our company, the electric furnace can be connected with the computer to realize remote control of single or multiple electric furnaces, start and stop electric furnaces, set temperature control program, store temperature control program, view historical curve, print historical curve, etc.


This equipment is mainly used for dental porcelain powder processing. The furnace is heated all around. Compared with the traditional muffle furnace, the temperature field of the crystal furnace is more uniform, and the permeability and consistency of the dental crown are better. It is a more humanized loading mode, which is convenient for loading and taking materials. It is an ideal choice for denture factories.    

Qualification & Honor

Quality management system certification GB/T19001:2016 / ISO 9001:2015   european union CE Certification: "Luoyang civilized and honest management demonstration enterprise" Leading brand of electric furnace industry in China Quality, service, reputation AAA enterprise The products can stand the inspection of the testing organization, and the third party identification certificate can be issued if necessary.

Main functions & Features

1. Energy saving, power saving, environmental protection and pollution-free (furnace material: high-purity composite alumina / ceramic polycrystalline fiber, light weight, less heat storage, energy saving, half power operation on average)

2. Convenient replacement, energy saving and time saving (high quality resistance wire / silicon carbon rod / silicon molybdenum rod, long service life and convenient replacement)

3. Touch screen control, easy to use and flexible.

4. High temperature control accuracy (high quality instrument, temperature control accuracy ± 1 ℃), the instrument can issue a third-party test certificate

5. Good uniformity of furnace temperature, heating around (reasonable layout, balanced temperature field, no dead corner in furnace chamber)

6. The temperature is controlled by microcomputer program, the heating rate can be adjusted, and the automatic operation does not need to be watched manually

7. Over temperature, over pressure, over current, electric leakage, broken couple, broken rod automatic protection alarm

8. Electric lifting of furnace bottom, stable lifting without vibration, and feeding at lower inlet.

9. Scope of application: it is mainly used in the processing and manufacturing of dental porcelain powder, which is the ideal choice for denture processing plants.

10. Double shell, air convection heat insulation layer

11. The shell is sprayed with plastic, and the appearance is exquisite and elegant

12. Good reputation and numerous customers

13. Good cost performance, perfect after-sales service, 1-year warranty and lifelong on-site maintenance

Main technical parameters


Index value

Rated voltage


Design temperature

eight hundred ℃,1000℃,1200℃,1400℃,1600℃,1700℃,1800℃

heating rate

≤ 0.1-40 ℃ / min (adjustable)

Heating element

High quality imported resistance wire / high quality U-shaped silicon carbide rod / high-quality U-type silicon molybdenum rod

control accuracy


temperature control

Touch screen, PLC, microcomputer control, PID adjustment, intelligent microcomputer control, multi-stage programmable temperature control curve, no need to watch (full automatic heating, heat preservation, door opening and power-off)

Temperature measuring element

K (0-1300℃)/S(0-1600℃)/B(0-1820℃)

Furnace material

Ceramic polycrystalline fiber  / Alumina fiber / Composite alumina fiber / High purity composite alumina fiber / Imported fiber

Furnace door structure

The furnace door is used as the charging platform, and the bottom is electric lifting, which is stable and vibration free, convenient for loading and unloading

Heat dissipation mode

Double shell, air

Surface temperature rise


Random gift

2 heating rods, 2 rods, 1 crucible pliers, 1 pair of fire-resistant gloves, 1 bag of zirconia beads, 1 crucible, 1 Certificate of instruction

Selection Guide


Furnace diameter (mm)

Furnace height (mm)

Supply voltage (V)

Power (kw)

control accuracy


one hundred

one hundred

two hundred and twenty




one hundred and twenty

one hundred and twenty

two hundred and twenty

two point five


Temperature category

eight hundred Optional at - 1800 ℃

Non standard customization

According to the needs of customers, we can customize the experimental furnace of different sizes

Standard accessories





High temperature gloves


one double

It has good comfort and can keep hands warm; it is resistant to cutting, wear and heat (it can resist contact heat at 350 ℃ for 60 seconds, and 100 ℃ for 180 seconds) for long-lasting durability.


Heating element

Silicon carbide


two branch

Silicon carbon components and use temperature is high, hard and brittle, used after molding, such as silicon carbide made of silicon carbide rod, silicon carbon tube heating temperature can reach one thousand and five hundred The operating temperature is 1000-1200 ℃ in vacuum and 1350 ℃ in nitrogen atmosphere

Silicon molybdenum rod


two branch

When heated to high temperature in oxidizing atmosphere, a dense quartz glass film is formed on the surface of the rod to protect it from oxidation. Therefore, Si Mo rod has high temperature oxidation resistance. In the oxidation atmosphere, the temperature can reach one thousand and eight hundred It can be used as heating element of high temperature furnace for electronics, ceramics, magnetic materials, glass, metallurgy, refractory, etc.

Crucible tongs


one hold

1. A common chemical instrument. It is usually used to clamp the crucible. It is generally made of stainless steel, or nonflammable and refractory hard materials.

2. Clean crucible tongs are required.

3. When taking out the hot crucible with crucible tongs, it is necessary to preheat the tongs first, so as to prevent the crucible from cracking due to local cooling. After use, the tongs should be placed upward on the table top or asbestos net.

4. After the experiment, the crucible tongs should be wiped clean, put into the experimental equipment cabinet, and placed dry.

5. The bending part is used for holding the crucible, and the tip is used for other purposes.

6. The crucible tongs may not be used together with the crucible, but can also be used alone.

Optional accessories list

Observation window

Vents and chimneys

Vacuum the atmosphere


Zirconium bead

Furnace bottom plate




Special note

Quality assurance

The whole machine is guaranteed for one year, with the exception of related consumables (except for base plate and heating elements) and lifelong on-site maintenance

Factory environment

one Indoor use;

two The ambient temperature is in the range of ± 5-45 ℃;

three The relative temperature of the surrounding environment should not exceed 85%;

four There is no conductive dust, explosive gas and corrosive gas that can seriously damage metal and insulation around the furnace.


one When the electric furnace is used or reused after long-term shutdown, it is necessary to dry the furnace, otherwise it is easy to cause furnace cracking.

two Keep it clean and regularly check whether the furnace wiring is in good contact.

three When the electric furnace is used, the furnace temperature shall not exceed the rated temperature to avoid damaging the heating elements. It is forbidden to pour various flammable liquids and molten metals into the furnace.

four In the process of working, generally below 300 ℃, the heating rate should not be too fast. As the furnace is cold at the beginning of heating, it needs to absorb a lot of heat.

after-sale service

one We promise to solve the customer's technical questions within 1 hour.

two For the equipment returned to the factory for repair, we promise to issue the test results within 1 working day and complete the repair within 3 working days. Special materials need to be customized and handled as appropriate.

three Return visit the user within 1 week after the equipment is returned to the customer, and provide free consultation on relevant technology.

Friendly tips

one For the normal service life of the equipment, please do not operate at the set temperature for a long time.

two Carefully check and check the quantity of goods and accessories when receiving goods, so as to avoid inconvenience caused by less delivery and missing delivery.

three In order to prolong the service life of the instrument, we suggest that the heating rate and cooling rate should be 10 ℃ / min.

four The cooling rate should not exceed 5 ℃ / min

five The furnace has no vacuum sealing structure, so flammable and explosive gas can not be introduced.

six After the furnace is used for a period of time, tiny cracks will appear in the furnace, which is a normal phenomenon and will not affect the use. At the same time, it can be repaired with alumina coating.

Common Faults & troubleshooting

Fault phenomenon

Cause of failure

Exclusion method

Indicates that there is no switch power on

Control circuit, fuse broken, no power supply

Check whether there is a short circuit and replace the fuse tube after removing it

When the equipment is running, there is voltage and no current

Heating element broken

Replace the heating element

The instrument PV shows the upper limit temperature of the corresponding thermocouple

Thermocouple short circuit

Replace the thermocouple

The power supply is normal, but the furnace can not be heated

The main control circuit is damaged

Inform professional maintenance personnel for maintenance

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