Continuous Belt Furnaces with Variable-Speed Drives
Enlarge photoUpton continuous belt furnaces are available with electric or gas-fired heating and variable-speed drives for adjusting part-processing rates. The heating-system design shields loads from direct radiant heat or flame impingement while promoting efficient, uniform heating.
Electric Heating Systems
Electric furnaces use resistance heaters selected for the application, intended atmosphere and customer preference. Open resistance-wire and bayonet/radiant-tube styles are available. These heaters help maintain atmosphere integrity and thermal efficiency. SCR power controllers with diagnostics displays mounted on the control-panel door are standard; PLC and PC system integration is optional. Heating systems are factory wired.
Gas Firing Systems
Gas-fired furnaces use direct-fired or radiant-tube burners designed to maintain furnace atmosphere integrity. Sealed burner systems are available with standard tube firing or single-end recuperative designs, based on customer preference. Solid-state flame supervision systems with diagnostics displays mounted on the control-panel door are standard; PLC and PC system integration is optional. Combustion systems are factory piped.
Thermal Recirculation Systems
Alloy cartridge fans recirculate the furnace atmosphere through a stainless-steel plenum above the chamber to promote even temperatures. Sidewall ducts deliver the atmosphere beneath the workload and return it through the fan plenum inlet. The recirculation system is integrated with the electric or gas heating system.
Variable Speed Belt Drive Systems
Variable-speed drives let operators adjust part-processing rates. Positive chain or direct-belt drives support smooth tracking and alignment during operation.