Laboratory tube furnace

Scope of application

In the field of environmental monitoring, it is used for thermal carbon analysis (OC/EC separation) of atmospheric particulate matter source analysis and loss on ignition testing of soil sediments. In terms of material processing, it supports degreasing and sintering of ceramic precursors, reduction treatment of metal powders (H₂ atmosphere), and precision annealing of glass materials.

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Laboratory tube furnace

laboratory tube furnace is a specialized type of scientific heating equipment designed for precise thermal processing under controlled temperature and atmosphere conditions. It is widely used in laboratories, universities, and research institutes for applications such as material synthesis, annealing, calcination, pyrolysis, and thermal treatment of various samples.

Thanks to its compact structure, accurate temperature control, and flexible configuration, the lab tube furnace has become an indispensable tool for researchers working in materials science, chemistry, and environmental engineering.

Main Structure of a Laboratory Tube Furnace

A laboratory tube furnace typically consists of several key components:

Heating chamber: The high-temperature zone made of refractory materials or ceramic fiber insulation ensures uniform heat distribution and minimal heat loss.
Tube body: Made from quartz, alumina, or stainless steel, the tube provides a sealed environment for heating samples in air, vacuum, or controlled gases.
Heating elements: Usually made of Kanthal (FeCrAl) or silicon carbide (SiC), these elements offer stable and efficient heating up to 1800°C.
Temperature control system: Equipped with PID digital controllers and thermocouples, it ensures precise temperature regulation and stability.
Gas flow system (optional): Enables the introduction of protective or reactive gases such as argon, nitrogen, or hydrogen to achieve specific experimental conditions.

Types of Laboratory Tube Furnaces

There are several types of lab tube furnaces, depending on the heating direction, temperature range, and control features:

1. Single Zone Tube Furnace

Designed for general laboratory heating tasks, it provides stable temperature control in one uniform heating zone.

2. Multi-Zone Tube Furnace

Equipped with two or three independently controlled zones, this furnace ensures a temperature gradient or uniform heating across the entire tube, ideal for advanced material studies.

3. Split Tube Furnace

Features a split-body design that allows easy access to the tube and sample, perfect for frequent sample changes and maintenance.

4. Vertical Tube Furnace

Mounted vertically to facilitate processes like CVD, gas-solid reactions, or deposition experiments.

Applications of Laboratory Tube Furnace

The laboratory tube furnace is a versatile heating system used in a wide range of research and industrial applications:

Material synthesis and sintering of ceramics, composites, and nanomaterials
Thermal decomposition and pyrolysis experiments for biochar or carbon materials
Annealing and oxidation of metals, alloys, and thin films
CVD (Chemical Vapor Deposition) and gas reaction studies
Catalyst testing, crystal growth, and solid-state reactions

Its precise temperature control and adaptable configurations make it suitable for both academic research and industrial testing laboratories.

Advantages of Laboratory Tube Furnace

Wide temperature range: Operates from ambient to 1800°C, suitable for diverse applications.
Excellent temperature uniformity: Ensures accurate heating results for sensitive samples.
Compact and modular design: Easy installation and maintenance in laboratory settings.
Atmosphere control: Supports experiments under vacuum or controlled gases.
Energy efficiency: Advanced insulation reduces power consumption.
Reliable performance: Long service life with stable heating elements and robust construction.

Why Choose Our Laboratory Tube Furnace

Our laboratory tube furnaces are designed with precision, reliability, and flexibility in mind. We offer customizable models to meet specific research needs:

Temperature options: 1200°C, 1400°C, 1600°C, and 1800°C
Tube materials: Quartz, alumina, or stainless steel
Furnace configuration: Horizontal, vertical, or split type
Control systems: Intelligent PID controller with programmable temperature profiles
Safety features: Over-temperature protection, power-off memory, and fault alarms

Each lab tube furnace undergoes rigorous testing to ensure consistent performance, making it an ideal choice for universities, research institutions, and industrial R&D centers.