Fusing Furnaces with Movable Table or Tub

An interchangeable table system is especially economical, as one table can be charged while the other is in the furnace.

Process Control

Function and equipment

GFM920_.png
Tisch_GFM
GFM_autom_Deckel

Fusing furnaces in the “GFM” series were developed for special production requirements. The GFM series combines the impressive quality benefits of the GF series with the option of charging the table outside the furnace. The table runs on swivel castors and can thus be moved freely. The scope of delivery includes a flat table for fusing work; additional tables can be added. An interchangeable table system is especially economical, as one table can be charged while the other is in the furnace. Instead of flat tables, different tables with different heights can be used if the furnace is to be used for higher components, for example.
 

Standard Equipment

  • Tmax 950 °C
  • Heating element, protected in quartz tubes
  • High current connection capacities for short warm-up times and energy-saving way of working
  • Arranged closely beside each other on the top, heating elements ensure direct and uniform radiation of the glass
  • Infrared heated in hood which is attached to stand
  • Dual shell hood made of stainless steel with slotted cover lid
  • Scope of delivery includes a table
  • Table on wheels, freely movable
  • Controller integrated to save space on the right side of the furnace
  • Level table surface with insulation made of robust lightweight refractory bricks and marked charge surface
  • Top hat insulated with high-quality fiber material; exclusive use of insulation materials without categorization according to EC Regulation No 1272/2008 (CLP). This explicitly means that alumino silicate wool, also known as “refractory ceramic fiber” (RCF), which is classified and possibly carcinogenic, is not used.
  • Adjustable, large quick-release fasteners - can be used while working in gloves
  • Handles on the left and right side of the hood for opening and closing the furnace
  • Hood safety switch
  • Solid state relays provide for low-noise operation
  • Type K thermocouple
  • Hood easy to open and close, supported by compressed-gas springs
  • Lockable air inlet opening for ventilation, fast cooling and observation of charge
  • Comfortable charging height of 860 mm
  • Controller C540 (10 programs with each 20 segments)

 

Additional equipment

  • Motorized lid opening for faster cooling for models GFM 420 up
  • Bottom heating for uniform through heating of large objects
  • Cooling fan for accelerated cooling with closed lid
  • Tables for expansion of the furnace system; Interchangeable table system to use the residual heat of the furnace and to reduce cycle times by changing table in warm state
  • Table designed as a basin
  • Motorized exhaust air flap for faster cooling of the fusing furnace
  • Air inlet flap with window for observing the glass
  • Process control and documentation via VCD software package for monitoring, documentation and control

Technical specifications

ModelTmaxInner dimensions in mmFloor spaceOuter dimensions1 in mmHeating power ElectricalWeight
 °Cwdhm2WDHin kW2connectionin kg
GFM 42095016609504001.57223013901460183-phase630
GFM 520950121011604001.40178016001460153-phase670
GFM 600950201010104002.03258014501460223-phase730
GFM 920950211011604002.44268016001460263-phase980
GFM 1050950231012104002.79288016501460323-phase1190
GFM 1425950251015104003.79308019501460323-phase1390

1External dimensions vary when furnace is equipped with additional equipment. Dimensions on request

2Depending on furnace design connected load might be higher


 

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