Box furnaces provide uniform heat distribution through individual heating elements on all sides of chamber.

• Door conveniently opens to horizontal position to serve as chamber loading surface
• Spring-loaded mechanism holds door securely shut
• A sight glass area allows convenient observation of the heated sample when furnace is in operation
• Power to furnace is shut off if high limit is reached

An insulated vestibule and tight-fitting insulated door plug provide excellent temperature uniformity by minimizing heat loss around the furnace chamber opening. Over-temperature protection feature on controller 30783-004 protects furnace and sample if primary control circuit fails. Maximum temperature is 1200°C. For 208/240V, 50/60Hz.