A wide range of electrically heated, oil or gas-fired rotary hearth furnaces that are suitable for continuously hardening such parts as gears requiring press quenching, or pre-heating copper, brass, and bronze slugs and billets prior to forging or impact Extrusion. It can be also used for Shell Baking in Investment Casting. Temperature range up to 1250°C.

Features

  • Variable speed.
  • Fabricated continuously welded and reinforced steel shell.
  • Single ended recuperative radiant tubes on gas-fired version
  • Low watt-density rod over bend elements with round cross-section for excellent long-term stability with minimal resistance change on 1250°C electrically heated version.
  • The elements are mounted vertically around the outer wall of the furnace.
  • PID and Safety temperature instrument
  • Alloy or silicon carbide hearth plates depending type of furnace and temperature
  • Pneumatically operated door

Applications

  • Hardening
  • Pre-heating
  • Normalizing
  • Tempering
  • Shell backing

Options

  • Temperature control
  • Recorder
  • Carbon control with oxygen probe
  • Gas flowmeters for dissociated ammonia or exothermic atmospheres
  • Nitrogen-methanol atmosphere system