Products- Details

Innovation and continuous improvement is our mission. To provide our customers with the best applicable solution is our goal.

Details

MFG-model

Tmax de hasta 0 °C

Medium frequency generator, 10kW - 1MW, 5 - 100 kHz

Aplicaciones:

activation, casting, crystal growing, CVD chemical vapour deposition, directional solidification, forging, gemstone heat treatment, glueing, graphitization/carbonisation, hardening, heat treatment, levitation melting, melting, pre-heating, pulling, remelting, sample preparation for spectroscopy, shrink fitting, soldering, stress-relieving, surface coating, tempering

Most important characteristics

  • For heating of electrically conductive materials, hardening, annealing, soldering and brazing, welding, glueing, heating of forged parts, melting, preheating and heating of suszeptors (graphite, SiC etc.)
    • Especially suited to heat high conductive material (steel, Al, Cu, Ag etc.) as well as other non-magnetic metals.
    • Medium frequency industrial inverter
    • MF-output power ranges standard series up to 400 kW, up to 1 MW on request
    • Siemens S7-300 PLC with touch screen
    • High energy efficiency
    • High reproducibility of the heating process
    • Environment friendly
    • Easy to handle 

We make it possible

Linn High Therm is specialized in customizing its products to customer´s needs. Please let us know if you require any modifications. 

Options

  • Additional output adapter
    • Induction coil according to client requirements
    • Temperature control with pyrometer
    • Safety temperature control with pyrometer
    • Cooling water recirculation unit
    • Different vacuum systems
    • Gas purging system

Especificaciones del producto

Sizes

Type

MFG-10

MFG-20

MFG-30

MFG-50

MFG-80

MFG-100

MF-Output power (kW)

10

20

30

50

80

100

Operating frequency, optimal range (kHz)

10 - 100

8 - 100

8 - 100

8 - 80

5 - 70

3 - 70

Mains supply

3x400 V/50 Hz 12 kVA

3x400 V/50 Hz 24 kVA

3x400 V/50 Hz 36 kVA

3x400 V/50 Hz 60 kVA

3x400 V/50 Hz 96 kVA

3x400 V/50 Hz 120 kVA

Cooling water
(4-6 bar)

10 l/min

15 l/min

20 l/min

30 l/min

50 l/min

60 l/min

MF part dimensions
(w x h x d) (mm)

280x250x550

280x250x550

280x250x550

280x250x550

280x250x550

280x250x550

Control unit dimensions *) (w x h x d) (mm)

*) Compact unit has same dimensions

520x1350x530

600x1900x500

600x1900x500

600x1900x500

800x1900x500

800x1900x500

Weight control part /output adapter
in kg

60/5-20

120/10-30

130/10-30

180/20-50

260/25-60

300/30-70

Compact unit
in kg

65-80

130-150

140-160

200-250

285-320

330-370

Technical details

Display elements (LCD display)

  • Actual working power
    • Working frequency
    • DC current
    • Heating time
    • Fault indication
    • Cooling water overtemperature
    • Low cooling water flow 

Control elements

  • Main power switch
    • START and STOP button
    • Operational panel of the PLC Simatic S7
    • RESET button 

Security functions

  • Cooling water flow protection
    • Cooling water temperature protection
    • Overload switch OFF – DC and MF current
    • frequency limitation 

Mains supply

The mains supply is realized over three fast semiconductor fuses.  

Rectifier part

The rectifier consists of one three phase diode bridge, smoothing elements and one DC overcurrent limit circuit. 

Converter part

The converter part consists of the oscillator capacitors, IGBT modules, MF output connection and the control. The oscillator capacitors and the oscillator transformer are mounted in the separate adaptor frame and connected with the generator by the special flexible MF cable and cooling water pipes with the maximal length of 4 m. Upon the special customer request it is possible to integrate the output part in the generator frame. 

Control

The generator is completely controlled by the system Simatic S7 with touch screen. The operational panel is used for entering the working parameters and by that to control the equipment. Via the corresponding connector it is possible to operate the generator from remote devices. The important working data as well as the eventual faults will be displayed on the LCD display of the operational panel. As a special option we can offer the converter with two different working frequencies for the alternative work.

Características del producto

Gama de productos: type series
Modo operacional: Batch and Continuous
Tipo constructivo: Generator
Diseños: Crucible furnace, Fusion unit, Laboratory furnace, Remelting unit
Temperatura máxima (°C):
Calentamientos: electrical
Método de calentamiento: induction
Atmósferas: Air, Controlled gas atmosphere, Overpressure, Vacuum
Aplicaciones: activation, casting, crystal growing, CVD chemical vapour deposition, directional solidification, forging, gemstone heat treatment, glueing, graphitization/carbonisation, hardening, heat treatment, levitation melting, melting, pre-heating, pulling, remelting, sample preparation for spectroscopy, shrink fitting, soldering, stress-relieving, surface coating, tempering