Company Video
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| Rotary hearth furnace DH 2500 S, movable on rails, for preheating molds for two melting furnaces | Rotary hearth furnace DH 630/S |
Gear rim drive under the furnace
Rotary table with base plates made of highly heat-resistant steel to protect the insulation
Exhaust hood above charging opening
The compact furnaces of the DH product line are optimally suited for continuous processes on a small floor space. They are designed for preheating processes such as the preheating of ceramic molds in precision casting. Charging and discharging can, be done at one position – either by a person or fully automatic. The hearth rotates in pre-set segments individually reconciled with the workpart geometry. The rotational speed and rotational intervals can be defined by the control system or by manual switching. Customized furnace design accommodates individual throughput requirements.
- Tmax 1100 °C, 1200 °C or 1300 °C
- Wire heating elements in the furnaces ceiling for furnaces up to 1200 °C
- SiC heating rods in the furnace ceiling for furnaces up to 1300 °C
- Gas heating as an alternative to electrical heating
- Very compact design compared with continuous furnaces
- Designed for continuous operation at one working temperature
- Table diameter up to 3000 mm
- Hearth movement in defined segments
- Low-vibration movement of the rotary hearth
- Parallel swivel door
- Automatic drive or rotational motion initiated by foot switch
Additional equipment
- Customized dimensions
- Exhaust hood above the door opening for discharge of the warm exhaust air when door is open
- Pneumatic drive of the parallel swivel door
- Multi-zone control for adjustable thermal profile during the cycle
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| Continuous furnace D 650/S with chain conveyor for 950 °C | Continuous roller furnace N 650/45 AS for heat treatment of heavy workparts |
Service flap door at furnace side
Discharge of D 650/S
Cooling facility at discharge of a continuous belt furnace
Continuous furnaces are a good choice for processes with fixed cycle times such as drying or preheating. The standard models are available for temperatures between 100 °C and 1000 °C. The furnace design in subject to the required throughput, the process requirements for the heat treatment and the required cycle time. The conveyor technology (e.g. belt, rollers) is tailored to the required operational temperature and the charge geometry to be handled. The conveyor speed and the number of control zones also depend on process requirements.
- Temperatures between 100 °C and 1000 °C
- Conveyor speed infinitely variable
- Customized conveyor belt width
Additional equipment
- Charge and discharge section tailored to process requirements
- Heating-up and cooling section with defined gradients to follow specific temperature profiles
- Exhaust gas treatment facilities
- Different conveyor specifications corresponding to the parts to be conveyed
- Roller conveyors
- Charging aids for loading and unloading
- Different heating concepts depending on process requirements, e.g. radiation heating, air circulation, infrared or gas-fired
- Retorts for operation under protective gas
