How a Tubular Coil heater Works

Tubular coil heater

Are you curious about the inner workings of a tubular coil heater? Want to understand the science behind this essential component of industrial processes? Well, you’ve come to the right place! This article will explore the fascinating world of tubular coil heaters and how they function in various industries.

But first, let’s start with a hook – did you know that tubular coil heaters are the backbone of many heating and cooling systems? These coils transfer heat or cold air, making them crucial for maintaining optimal temperatures in various applications. Whether you’re in the manufacturing, HVAC, or chemical industry, understanding how a tubular coil works is essential for maximizing efficiency and ensuring smooth operations.

So, keep reading if you’re ready to unravel the mysteries of tubular coil heaters and gain a deeper understanding of their intricate mechanisms. We will break down the complex concepts into easy-to-understand terms and provide valuable insights into these indispensable components’ inner workings.


Definition of a Tubular coil heater

  When we talk about tubular coil heaters, we refer to a specific type of coil shaped like a tube. It consists of a tube made of copper or aluminum, which conducts electricity well. This tube is wound into a coil shape allowing for the flow of current and the creation of magnetic fields. Learning more about it: what is the tubular coil heater?


Importance and applications of tubular coil heaters

Tubular coil heaters play a role in various industries and applications. They are widely used in systems, heating and cooling devices, and medical equipment. The versatility and efficiency of coils make them essential in applications including:


  1. Heating and Cooling Applications. Tubular coil heaters are commonly employed in heating elements for appliances such as ovens, toasters, and electric stoves. They can also be found in cooling systems like refrigeration units and air conditioners, which facilitate heat transfer.
  2. Generation of Magnetic Fields and Electromagnetic Coils. Tubular coil heaters act as device components. When an electric current is passed through the coil, it generates a field. This principle is employed in solenoids, electromagnets, and transformers.
  3. Induction heating and the processing of metals involve the use of coils. These coils utilize induction to generate heat in materials. They play a role in applications, including welding, annealing, and heat treatment in the metal industry.

Tubular coil heaters are also in Magnetic Resonance Imaging (MRI) machines. They are responsible for producing consistent fields essential for imaging the human body.


Tubular coil heaters find use in various fields, such as consumer electronics, industrial processes, and healthcare. Their ability to generate fields and effectively transfer energy makes them indispensable in multiple systems and technologies.


How tubular coil heaters operate. basic principles

tubular coil heaters works

Construction of Tubular Coil Heaters

Tubular coil heaters are constructed by wrapping a wire around a cylindrical tube. This tube serves as the core structure, offering support and stability to the coil. The wire is wound continuously to create loops or turns around the box.


Conductive Materials Used in Tubular Coil Heaters

The materials used for making tubular coil heaters are copper and aluminum. Copper is preferred due to its conductivity, low resistance, and excellent heat transfer properties. Aluminum finds its use in applications that prioritize weight reduction due to its weight compared to copper.


Creating and arranging the coil

The formation and arrangement of the Tubular coil depend on the requirements of each application. The wire is tightly and uniformly wound around the tube, ensuring spacing between turns. The number of turns and overall length of the coil can vary depending on factors like desired resistance, magnetic field strength, and physical space limitations.


Electrical connections in a coil

Tubular coil heaters have two ends where electrical connections are established. These connections enable the integration of the ring into a circuit. The wire ends are usually extended beyond the coil. It may be terminated with connectors or soldered to facilitate connection. The choice of connection method depends on the application and electrical requirements.


It is crucial to ensure proper electrical connections to maintain a current flow through the Tubular coil, allowing it to function efficiently. The links should be secure, ensuring conductivity while minimizing resistance.

Tubular coil heaters are constructed by winding a wire around a tube, with copper and aluminum commonly preferred materials. The configuration and structure of the coil vary depending on its intended use, and the ends of the coil are where the electrical connections are made to incorporate it into a circuit. These basic principles serve as the basis for the operation of locks. Allow them to perform effectively in various applications.


How tubular coil heaters work

How tubular coil heaters work

The Role of tubular coil heaters in Electrical Circuits

tubular coil heaters play a role in electrical circuits as they function as conductors that facilitate the flow of electric current. When connected to a power source, the tubular coil becomes a part of a circuit enabling the transfer of electrical energy. The coil’s unique properties, such as resistance, inductance, and magnetic field generation, contribute to its significance within the circuit.


The Flow of Electric Current through the Coil

  When a voltage is applied across the coil, a current flows through the wire; this flow of electrons occurs due to the difference created by the power source. The conductive material of the coil allows electrons to move freely, resulting in circulation within the ring.


Electromagnetic Induction and Magnetic Field Generation

  An essential working mechanism of tubular coil heaters involves induction. A current that passes through the coil generates a field around it. 

The strength of the passing through the coil directly influences the magnetic field it produces.

The magnetic field generated by a Tubular coil depends on its shape, number of turns, and current flow. This property makes tubular coil heaters highly useful in applications that require the creation of fields, such as electromagnets and transformers.

When a tubular coil generates a field, it can interact with conductive materials. For instance, if another ring or a metal piece is placed close to the coil the magnetic field induces a current in the nearby material.

This concept finds application in transformers, where the coil’s magnetic field induces a current in the coil. Similarly, in induction heating processes, the magnetic field from the coil creates currents in the conductive material resulting in heating.

Tubular coil heaters work in ways. They act as conductors for current generate fields through electromagnetic induction and interact with nearby conductive materials through these magnetic fields. Understanding these mechanisms is crucial for utilizing coils in electrical circuits and applications that rely on magnetic field generation.


Key Components and Features


Essential elements within tubular coil heaters

tubular coil heaters often incorporate a core material to enhance their properties. Typically this material consists of substances like iron, ferrite, or laminated steel. The presence of a core enables the coil to focus and direct the field it generates, resulting in enhanced efficiency and effectiveness.


Safeguarding and insulation of the coil

  In Tubular coil construction, insulation plays a role. Its primary function is to prevent circuits and electrical leakage by providing a layer between wire turns. Commonly used insulation materials for tubular coil heaters include enamel coatings, varnishes, or polymer sleeves. Additionally, insulation provides support to safeguard the wire and enhance the durability of the coil.


Coil dimensions and wire thickness

  The dimensions of a Tubular coil, such as its diameter and length, are determined by applications and desired electrical and magnetic characteristics. The thickness of the wire, known as the wire gauge, also influences the properties of the coil. Thicker wires with gauges offer decreased resistance. It can handle higher currents. Conversely, thinner wires with gauges are suitable for applications requiring precise control.


Diverse designs and customization options for coils

tubular coil heaters come in designs and can be customized to fulfill specific requirements. There are types of structures for coils, such as single-layer coils, multi-layer coils, and toroidal coils. The number of turns, spacing between turns, and coil pitch can be adjusted to achieve goals like inductance, resistance, or magnetic field strength. Depending on the application and spatial limitations, the shape and arrangement of the coil can be customized.


Moreover, tubular coil heaters offer features like temperature sensors, thermocouples, or connectors that make installation and integration into systems. These customization options ensure that the tubular coil can be adapted to meet the requirements of each application.


Essential aspects of coils include using core materials to enhance properties, insulation for electrical protection and durability considering dimensions, and wire gauges for desired electrical characteristics. There are also design options to customize the coil according to specific applications. These components and features contribute to the functionality and performance of coils in diverse fields and industries.

This article introduces the 7 ways to use tubular heaters.


Application of tubular coil heaters


Tubular coil heaters have various applications involving heating, cooling, and magnetic fields.


Heating and cooling applications

Tubular coil heaters are commonly used in appliances like ovens, toasters, electric stoves, and electric water heaters for their heat generation capabilities. They play a role in providing the heat in these devices. Regarding cooling systems, tubular coil heaters are utilized in refrigeration and air conditioning units to facilitate heat transfer, ensuring cooling.

HVAC system

Field generation and electromagnetic coils

  tubular coil heaters are components in devices that require creating and controlling magnetic fields. Electromagnetic coils such as solenoids and electromagnets utilize coils to generate lots when an electric current passes through them. These devices find applications across industries, including robotics, automation, and magnetic actuators.


Induction heating and metal processing

  tubular coil heaters play a role in induction heating, which utilizes induction to generate heat in conductive materials. In induction heating systems, tubular coil heaters create a varying field that induces currents (electrical currents) in the conductive material resulting in heat generation. This process is heavily relied upon in metal processing applications.


This process allows for precise heating, which is highly valuable in metal processing tasks like welding, annealing, brazing, and heat treatment.


In the field, tubular coil heaters play a role in MRI machines.

Tubular coil heaters are components in equipment, especially Magnetic Resonance Imaging (MRI) machines. They are responsible for generating uniform fields required for imaging the human body. The design of these coils ensures the production of controlled areas resulting in accurate and detailed diagnostic imaging.


 Tubular coil heaters are used in heating and cooling systems and contribute to generating fields and electromagnetic devices. Tubular coil heaters play a role in metal processing through induction heating and are vital components in medical equipment like MRI machines. These various applications showcase the versatility and importance of coils across industries.

Advantages and Limitations

the advantages and disadvantages of the tubular coil heater

Advantages of using tubular coil heaters coil

Tubular  coils offer several benefits that make them highly desirable in numerous applications:


  1. Efficient heat transfer. The compact design and close contact with the heating or cooling medium ensure efficient heat transfer leading to effective heating or cooling processes in various applications.


  1. Generation of Magnetic Fields. Tubular coil heaters can generate fields, making them perfect for various applications that involve controlling and manipulating magnetic fields like electromagnets and transformers.


One of the advantages of coils is their versatility and customization options. They can be tailored to requirements and properties like size, shape, and wire configuration variations. This adaptability allows them to be used in different environments and different scenarios.


Another noteworthy aspect is the durability and reliability of coils. They are typically constructed using materials and insulation to withstand demanding conditions and provide performance over a long lifespan.


However, it’s essential to consider some limitations when using coils. Firstly their cylindrical shape requires a significant amount of space which may limit their usage in compact designs or situations where the area is restricted.


Moreover, proper heat dissipation is crucial for coils as they generate heat during operation. To prevent overheating adequate cooling mechanisms or heat sinks should be implemented to maintain operating temperatures.


Additionally, the electrical resistance of the coil wire can result in energy losses and heat generation. Selecting the wire gauge and material to minimize resistance and maximize efficiency is essential.


Overall tubular coil heaters offer advantages. And also require careful consideration of space constraints, heat dissipation, and electrical resistance to ensure optimal application performance. Magnetic interference can concern coils, as their strong magnetic fields can potentially disrupt electronic devices or sensitive equipment. To mitigate this, it may be necessary to implement shielding and isolation measures in environments where sensitivity is a priority.


When comparing tubular coil heaters to other types of coils, like flat or helical coils, there are several distinctive factors to consider:


  1. Compactness. Tubular coil heaters have an advantage in compactness and space efficiency. This makes them easier to integrate into devices and systems.
  2. Heat transfer efficiency. Tubular coil heaters excel in heat transfer due to their proximity to the heating or cooling medium. On the other hand, helical or flat coils may have limitations regarding heat transfer efficiency.
  3. Magnetic field generation: tubular coil heaters are designed for controlled field generation. This makes them suitable for applications that require fields.

Ultimately, the choice between types of coils should be based on the requirements and constraints of the application, as each style has advantages and limitations.


In summary, tubular coil heaters offer advantages such as heat transfer, magnetic field generation capability, versatility, and durability. However, it is essential to consider factors such as space constraints, heat dissipation, electrical resistance, and potential magnetic interference when deciding.

Tubular coil heaters possess characteristics that make them suitable for applications compared to other coils. However, the choice of the coil should depend on the requirements of the given application.

And you can buy the best heater products from Hasteco, such as air duct heater and circulation heaters. Contact us, and we will reply to you on time.

Sales representive Luke


As the devoted CEO of Hasteco, I've spent countless years nurturing my passion for heating elements. Warmly inviting you to connect & collaborate for cozy, tailor-made solutions. Get in touch!

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