The ZZKD BR-14S-3 is a laboratory muffle furnace built for high-temperature thermal processing of metals, ceramics, and other compound materials. It provides a 150 x 150 x 150 mm (3 L) chamber with a maximum temperature of 1400°C for short cycles and a continuous working temperature of 1300°C.

The unit uses silicon carbide (SiC) heating elements and a ceramic fiber insulated chamber for efficient heat retention. A double-layer steel casing with cooling fans keeps the outer surface below 60°C during operation.

It is intended for university, research institute, and industrial laboratory work involving sintering, melting, annealing, and analysis of metal and non-metal samples.

How It Works

Temperature is regulated by a PID controller with SCR phase-angle power control and an S-type thermocouple. The controller supports programmable segments for setting heating rates, dwell times, and cooling rates, with auto-tune and over-temperature and broken-thermocouple protection for unattended cycles. A door interlock cuts power when the furnace door is opened.

Key Features

• 3 L chamber measuring 150 x 150 x 150 mm (W x H x D)
• Maximum temperature 1400°C (limited to under 2 hours); 1300°C continuous working temperature
• SiC heating elements with ceramic fiber insulated chamber
• Programmable PID controller with auto-tune, over-temperature alarm, and broken-thermocouple protection
• S-type thermocouple with ±1°C temperature accuracy
• Temperature uniformity of ±5°C over 120 mm (±3°C over 80 mm)
• Adjustable heating rate from 0 to 15°C per minute
• Double-layer air-cooled steel casing keeping the surface below 60°C; door interlock cuts power when opened