LC-ZNHW-250ml Digital Heating Mantle, 250 mL Flask Capacity (CAT#: STEM-BC-3510-ZJF)

The LC-ZNHW-250ml is a digitally controlled heating mantle for 250 mL round-bottom flasks. Its heating element is embedded in high-temperature alkali-free glass-fiber insulation. The hemispherical internal structure increases contact between the heater and vessel. This configuration improves thermal efficiency and supports fast temperature rise. The mantle heats without an exposed flame, making it suitable for routine chemical laboratory work. An LED display provides clear temperature indication. The supplied K-type sensor monitors the sample or vessel temperature. Fuzzy PID regulation improves control accuracy, reduces temperature overshoot, and reaches stable conditions quickly.

Power supply: 220 V, 50 Hz
Heating power: 210 W
Display: LED digital display
Maximum flask capacity: 250 mL
Temperature range: Ambient to 380°C
Temperature accuracy: ±1°C
Boiling reference: 50 mL water in 10-25 min
Heating wire: Cr20Ni80
Insulation: Alkali-free glass fiber rated to 450°C
Temperature sensor: K type
Mantle opening diameter: 100 mm
Mantle depth: 60 mm
Net weight: 1.6 kg
Dimensions: 260 × 205 × 170 mm

Two-hundred-fifty-milliliter capacity
Rapid internal heating
Broad flask contact area
Fuzzy PID regulation
High-temperature insulation
Accurate K-type sensing
LED digital control
Flame-free operation

STEM-BC-0958-ZJF
STEM-BC-0961-ZJF
STEM-BC-1727-ZJF
STEM-BC-1769-ZJF
STEM-BC-1778-ZJF