Model 12-RO-40140-16A
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Electric Bell Furnace

The Lindberg Rod Overbend (RO) Element Bell Furnaces give you flexible, efficient performance in a variety of heat-treating applications. The fast heating rate, heavy load capacity, and reliable operation help you achieve fast turnaround and high productivity. The furnace is very simple and economical to operate, and is available in a wide range of sizes.

The RO bell applications range up to 2150°F, with endothermic, exothermic, or nitrogen atmospheres. This furnace enables you to anneal, austemper, braze, carbonitride, carburize, harden, martemper, solution treat, stress relieve, and normalize efficiently and economically.

Lindberg can help you evaluate your needs for reducing process emissions whether it’s providing an afterburner for your existing system or supplying an afterburner with a new Lindberg furnace.

Features / Benefits

• Standard endothermic atmosphere system
• Emergency nitrogen gas purge circuit activates on power failure or loss of atmosphere
• Atmosphere tight continuously welded hood assembly
• Low watt-density RO elements for long life
• RO elements have round cross-section for excellent long-term stability with minimal resistance to change
• Easy-loading chamber
• Complete, pre-wired free standing control panel with disconnect switch
• SCR power control
• Excess temperature instrument
• Designed to meet FM, IRI, OSHA, and NFPA requirements
• Ceramic fiber block insulation reduces power consumption and boosts your productivity and efficiency with faster thermal cycling and reduced heat loss
• Guide posts to ensure proper alignment of heating bell on base

Options

• Carbon control with oxygen probe
• Strip chart or circular recorders
• Motorized gantry heating bell lift and rollaway mechanism
• Exothermic gas flowmeters
• Nitrogen-methanol atmosphere system
• Standby base for preheating and setting heating bell when not in use
• Floor mounted recirculating fan
• Carbottom heating base

Applications

• Annealing
• Austempering
• Carbonitriding
• Carburizing
• Hardening
• Martempering
• Preheating
• Solution Treating
• Stress Relieving
• Tempering
• Normalizing