Company Statement" Zhengzhou KJ Technology Co., Ltd. " belongs to the international business department of KJ Group. Starting today, the company will continue the international business contract signed or currently being performed by " Zhengzhou Kejia Furnace Co., Ltd. " See details >>

Position:Home > News

What is a tube furnace and how is it different from a box furnace?

  Both tube furnaces and box furnaces are common heating equipment used in laboratory and industrial applications, but they differ in structure, purpose and performance.
Tube furnace

Construction: Tube furnaces usually consist of a heating tube and external heating elements. The heating tube can be made of quartz, ceramic or metal material, with a hollow pipe inside.

Purpose: Tube furnaces are suitable for experiments or industrial processes that require heating in a tubular space, such as gas phase reactions, sintering, annealing, etc. They are commonly used in materials science, chemistry and semiconductor fields.


     Uniform heating: Tube furnaces provide uniform heating along the tube, suitable for experiments with precise control of high temperatures.
     Controlled atmosphere: Due to the tightness of the tube furnace, a specific atmosphere (such as inert gas, reducing gas) can be introduced into the tube to prevent oxidation of the sample or promote specific chemical reactions.
     High Temperature Capability: Tube furnaces can often reach very high temperatures (such as 1200°C or higher).

Box furnace
kejia box furnace

Construction: Box furnace is usually a closed box with a door and a heating element inside. The furnace can be square or rectangular, providing a larger heating space.

Purpose: Box-type furnaces are suitable for processes that require heating treatment in a closed space, such as drying, heat treatment, melting, pyrolysis, etc. They are widely used in materials science, metal processing, ceramic manufacturing and other fields.


     Large capacity: The internal space of the box furnace is larger and can accommodate larger samples or multiple samples to be heated at the same time.
     Flexibility: Suitable for samples of various shapes and sizes, regardless of tube shape.
     Temperature control: Box furnaces also provide precise temperature control, but may not be as uniform as tube furnaces.


     Shape and structure: Tube furnaces are cylindrical tubular designs suitable for long samples and specific atmosphere control; box furnaces are square or rectangular box designs suitable for diverse samples and large-volume processing.
     Application fields: Tube furnaces are mostly used for experiments that require specific atmosphere and precise control of high temperatures; box furnaces are mostly used for heating processes that require large space and flexible processing.
     Temperature uniformity: Tube furnaces provide more uniform heating along the tube direction, while box furnaces provide uniform heating throughout the furnace.

Choosing the appropriate furnace type according to specific experimental needs can better meet the requirements of experimental and industrial applications.

Hot news



Please leave a message here. We will reply you in 24 hours.

Tel Number