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Fusion Machine

Fusion machine used in laboratory

1. What is fusion machine?
2. Application of fusion machine
3. Types of fusion machine
    3.1 High-frequency induction fusion machine
    3.2 Electric heating fusion machine
    3.3 Gas fusion machine
4. How to buy fusion machine?

What is fusion machine?

Fusion machine is a laboratory sample preparation instrument that uses the glass melting method to prepare glass frit for analysis by AAS, ICP, and X-fluorescence. When using this instrument, the mineral effect and the enhanced absorption effect of the substrate are basically eliminated, and this machine also has the advantages of high precision and accuracy of measurement. The heating methods used for high-temperature melting are gas heating, resistance radiation heating, and high-frequency induction heating.

The types of samples that can be processed by fusion machines generally include oxides, sulfides, and silicates such as mining ores, metallurgical ores, concentrates, etc. The fusion machine can also be used in universities and research institutes, or for quality control, such as glass and ceramics industry, steelmaking iron ore, blast furnace slag, bauxite, alumina, metals like Pb, Zn, Cu, Ni, sulfides, silica slag, molten slag, ore sand industry, cement, lime, kiln brick industry, etc.

Application of fusion machine

Usage application

a. Fused glass production for XRF analysis

b. Solutions for AA and ICP analysis

Industry application

a. Steel and metallurgy industry. Sample preparation for pure metals, ferroalloys, other alloys, etc.

b. Geological and mining industries. Sample preparation for geological samples, bauxite, fluoride, etc.

c. Cement industry. Sample preparation for cement, carbonate, silicate, ceramics, slag, glass, sand, etc. Cement industry: cement, carbonate, silicate, ceramics, slag, glass, sand, etc.

d. Chemical industry. Sample preparation for oxides, sulfides, polymers, catalysts, etc.

Types of fusion machine

High-frequency induction fusion machine

High-frequency induction fusion machine is a piece of special equipment for x-ray fluorescence spectrometer sample making. It adopts high-frequency induction heating, which has the advantages of high efficiency, fast speed, no preheating, ready-to-use, high automation, simple operation, fast sample-making speed, high analysis accuracy, low cost of use, and meets the environmental protection requirements of energy saving, consumption reduction, and emission reduction advocated.

Advantages of high-frequency induction fusion machine

a. Use of high-frequency induction heating systems.

b. Glass frit for XRF analysis while the solution for AAS and ICP analysis.

c. High-precision infrared temperature measurement system combined with PID intelligent temperature control.

d. Adopting a touch screen interface integrating operation and display.

e. PLC intelligent control system with pre-storage of 5 sets of common sample preparation programs.

f. Set the melting sample program in advance, you can start the automatic execution to complete the sample with one key.

g. Automatic swinging function during the melting process.

h. Single-crucible single-mode, double-crucible double-mode, four-crucible four-mode, and other modes are available.

i. Sample making speed: 5-10min/batch.

j. The platinum crucible and molding mold are designed with a heat-resistant ceramic protection frame to extend the use time.

k. Melting interior design with a special extraction system, which can timely exhaust the harmful gas generated during melting timely.

l. It has wide applicability to different samples, and the produced frit is uniform and reliable, which can meet the user's requirements for glass frit in XRF analysis.

m. Multiple safety protection such as over-voltage, over-current, over-heating, water shortage, etc.

Technical Parameters

Product nameHigh-frequency induction fusion machine
Temperature RangeRoom temperature or up to 1300℃
Heating methodHigh-frequency induction heating
Heating rate1000℃/30 seconds
Temperature control modea. Infrared non-contact real-time temperature measurement
b. PID temperature control
Rated power5kw to 15kw
Power supplySingle-phase 220V, 50/60Hz, protective grounding
Oscillation frequency50kHz to 100kHz
Crucible frame swinging angleMax. ±45° (user adjustable)
Crucible rack swing frequencyMax. 1Hz (user adjustable)
Pouring angle60° to 122° (user adjustable)
Forming methodAuto-inversion
Control systemColor LCD touch screen, PLC control
Number of pre-stored programs5 programs
Working mode and time of each stageOxidation → Melting (each stage time adjustable)
Induction circle water temperature≤60℃
Cooling systema. Heating coil water cooling;
b. Forced fan air cooling of fusion piece.
Melting sample working modePre-oxidation → Melting & Swinging → Automatic casting → Cooling
Melting positionDouble-crucible and double-mode (user can choose single-crucible and single-mode, or four-crucible and four-mode)
Melting speed5-10min/batch
Equipment safety protectionOver-voltage, over-current, over-heating, water shortage
Crucible requirementsPlatinum yellow crucible (Pt/Au: 95/5)
Instrument weight (without water cooler)Instrument weight (without water cooler)
Main machine size (without chiller)
(L×W×H mm)
a. Double-crucible & double-mode mainframe: 580×828×425;
b. Single-crucible & single model mainframe: 580 × 414 × 425;
c. Four-crucible & four-model mainframe: 580×1656×425.

Electric heating fusion machine

The electric heating fusion machine is a laboratory instrument that uses nickel-chromium-molybdenum resistance wire, silicon carbon rod, or silicon molybdenum rod to heat by electric radiation. Its features are slow indoor heating, low thermal efficiency, inconvenient operation, and a tough operating environment due to strong heat radiation. Even though, the fusion equipment is still widely used due to its low manufacturing cost.


a. Preparation of glass flakes for XRF analysis.

b. Preparation of molten peroxide and sulfate samples.

c. Preparation of ICP, AA, and wet chemical analysis with solution samples.

d. Prepare molten samples such as oxides, minerals, metals, alloys, sulfides, and fluorides, etc.

e. To achieve solid oxidation.


a. Simultaneous melt preparation of 6 samples.

b. 24 to 30 sample preparations per hour.

c. According to the adjusted maintenance temperature, the temperature rise time can be minimized and productivity increased.


a. Heating chamber temperature can reach 1200℃.

b. Monitoring temperature with R-type thermocouple inside the heating chamber.

c. Monitoring the stability of the heating chamber with R-type thermocouples between refractory layers.

d. Highly heat resistant heating system.

e. Heating component temperature up to 1800℃.

f. Temperature range can be controlled from 150℃ to 1200℃.


a. Fully enclosed melt environment.

b. Integrated safety protection cover.

c. Electrical heating without using any fuel gas.

d. 3 layers of different refractory materials can ensure insulation and energy saving.

Advantages of electric heating fusion machine

a. Sample and melt mixing. The rotary mixing motion of the preset operation cycle ensures uniform dispersion and homogeneous mixing.

b. Crucible cooling with precise detection of the cooling rate ensures melt quality.

c. Automatic crucible fixation to eliminate cross-contamination caused by clamps.

d. Variable rotation speed allows optimal speed setting to ensure optimum sample conditions.

e. Preheat or oxidation with controlled and released gas to prevent sample spillage.

f. Separate burner heads allow independent control of temperature settings for a single set of crucibles and burner heads to ensure optimal conditions.

g. Oxygen injection maintains an oxygen-rich flame, allowing for uniform melting and preventing corrosion of Pt/Au vessels.

h. Allied ammonium injection. Pre-set humidification, mixing, or releaser program control.

i. Accurate weighing of molten samples, loss calculation, and reheating for sample preparation.

j. Computerized automatic control with the pre-set melting program, operation cycle, and graphic display of data, in compliance with ISO international quality control standards.

k. Convenient operation with special trays to collect spilled samples and granite pads for platinum dish placement.

l. Separate burner head composition allows independent burner head holders to be adjusted for precise control of the burning position under the crucible.

m. Melting at 800°C - 1600°C.

n. All potential safety hazard operations are done automatically, without any manual operation, ensuring personal safety.

Gas fusion machine

The gas fusion machine is a piece of special equipment for x-ray fluorescence spectrometer sample making. It uses high-temperature combustible gases such as natural gas, propane, acetylene, and so on, which can be heated at high temperatures. However, since these gases are flammable and explosive hazardous materials, there are safety hazards such as combustion and explosion. Meanwhile, there is also a certain temperature difference between the inner flame and outer flame of the gas, and the temperature of the melted sample is not easy to control.

Advantages of gas fusion machine

a. Fully automatic gas melting sample design with 4 heads, heated with LPG (propane/butane), the temperature can be set in the range of 800-1600°C.

b. Each port can be controlled independently, and each heating head can be displayed separately.

c. High-temperature stability and reproducibility, with the setting possibility of running 1, 2, 3, or 4 heating heads individually.

d. During the melting process, the molding molds are heated independently.

e. High degree of automation, PLC automatic control can set parameters like rotation, swing, inversion, pause, time, and speed to achieve one-key operation.

f. Set with graded authorization mechanism (technical engineer and technical expert) to adapt to the need for graded management of laboratory equipment use.

g. Designed with safety mechanisms such as emergency shutdown, gas leak shut down, overheat protection shutdown, flame control unit lockout, temperature sensor flame control, etc. LED displays the operating status throughout. Multiple mechanisms to ensure the stability of the equipment and the safety of personnel operation.

Disadvantages of gas fusion machine

a. A Small molecules or volatile elements are not suitable for this machine.

b. Fluxes may bring in impurities.

c. Mold release agents may interfere with the test.

Technical Parameters

Product nameGas fusion machine
Temperature range800℃ to 1600℃
Number of heating heads4 heads
Heating methodGas
Gas pressure (LPG)50mbar ± 5mbar
Air pressure6 bar - 10 bar with secondary pressure reducing valve
Oxygen pressure2 bar ± 0.1 bar with secondary pressure reducing valve
Heater head flame temperature control4 heads can be controlled independently
Power supplySingle-phase 220V, 50/60Hz, 200W
Crucible frame swinging angle and frequencyAdjustable
Forming methodAutomatic inverted mold casting molding
Control systemPLC control, PID intelligent temperature control, LED display
Melting curve working mode and time of each stagePreheating→oxidation→melting→cooling (each stage time is adjustable)
Working mode of molten sampleMelting oscillation→automatic reverse mould
Melting position4
Equipment safety protectiontemperature protection, flame control unit lock
Instrument weight35KG
Main machine size (L×W×H mm)470×470×260

How to buy fusion machine?

ANTITECK provide lab equipment, lab consumable, manufacturing equipment in life sciences sector.
If you are interested in our fusion machine or have any questions, please write an e-mail to [email protected], we will reply to you as soon as possible.

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