What Is a Lab Furnace?
What Is a Lab Furnace?
Lab furnaces perform several routine functions, including sample annealing, baking, curing, solvent removal and sterilization. Although most furnaces are designed for installation on a benchtop, specialty free-standing and walk-in furnaces are available.

How are Lab Furnaces Used?
Lab furnaces are commonly used in the material science, water treatment, environmental science, chemical, metal treatment, electronic, and agricultural biology industries.

 Furnace Style and Design

1 - Ashing Furnace
Ashing furnaces determine the change in weight of a compound as one or more constituents are burned off. Ashing furnaces are used for the material analysis of coal, rubber, plastics, and grain. Specialty porcelain quartz crucibles accommodate up to 38 samples for high-volume ashing or incineration.

2 - Box Furnace
Box furnaces contain larger sample chambers than ashing and muffle furnaces for processing bulk samples, such as raw metals, plastics or electronics. Double-wall construction reduces exterior surface temperatures for operator protection and energy efficiency. Hinged side-mounted or top-mounted doors provide full-chamber access for quick loading and unloading of samples.

3 - Muffle Furnace
Muffle furnaces are box furnaces equipped with ceramic fiber insulation to permit faster heating ramp rates than standard box furnaces. Muffle furnaces are used in laboratories for gravimetric analysis, sintering of small organics, quantitative analysis, and sample volatility studies.

4 - Tube Furnace Design
Tube furnaces are designed for heating small samples in an inert atmosphere. Certain models include three-zone controls to support segmentation of the sampling chamber into three distinct temperature gradients for material testing. Tube furnaces are used for sample viscosity testing, calibration, thermal expansion, and crystal growing.