Category: Heaters

June 2, 2025

What is a Finned Tubular Heater : A Comprehensive Guide Basics of a Finned Tubular Heater

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Basics of a Finned Tubular Heater

Finned tubular heaters are a type of electric heating element. They consist of a metal tube with external fins attached to its surface. The core of the heater houses a heating element. This element generates heat when electricity passes through it. The fins on the exterior serve a crucial purpose. They increase the surface area for heat dissipation.

Key Components of a Finned Tubular Heater

  1. Metal Tube: Usually made of stainless steel or copper
  2. Heating Element: Typically, a resistive wire
  3. Fins: Attached to the exterior of the tube
  4. Insulation: Surrounds the heating element inside the tube
  5. Terminal Connections: For electrical power input

Applications of a Finned Tubular Heater

The versatility of finned tubular heaters makes them suitable for various applications. They are used across various industries and settings. Here are some common applications:

Industrial Applications

  • Process Heating: Used in manufacturing processes requiring precise temperature control
  • Food Processing: For heating ovens, fryers, and other food preparation equipment
  • Chemical Processing: In reactors and vessels requiring controlled heating
  • Plastics Industry: For heating molds and extruders

HVAC Applications

  • Air Duct Heating: For warming the air in ventilation systems
  • Frost Prevention: Used in refrigeration systems to prevent frost buildup
  • Space Heating: In large industrial or commercial spaces

Other Applications

  • Automotive: In engine block heaters and defrosting systems
  • Marine: For heating systems on ships and offshore platforms
  • Agriculture: In greenhouse heating and animal husbandry

The wide range of applications demonstrates the versatility and effectiveness of finned tubular heaters. They can be adapted to meet specific heating needs across diverse industries.

June 1, 2025

Mica Band Heaters: Conduction Heating Technology

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What are Mica Band Heaters?

Mica band heaters offer efficient and economical solutions for heating cylindrical surfaces that require external indirect heating. They are the ideal solution for high-watt density and high-temperature applications. It uses a nickel chromium resistance strip as a heating element, which is precisely wound on a dielectric material for even heat distribution. The heating element is insulated within a mica core enclosed in a metal sheath, which provides exceptional insulation, dielectric strength, and heat transfer capability for faster heat-up and longer heater life. Heaters can incorporate various sized holes and cut-outs and are customizable for various dimensions, wattages, voltages, and materials to suit different applications requirements.

Construction

1. SS/Aluminised Sheath

2. Mica Insulation

3. Clamping Band

4. Nickel Chromium Resistance Strip

5. Terminal Box

6. Lead Protection

7. Stainless steel screw terminals

Benefits for Industrial Applications

Plastics Industry:

In the plastics industry, Mica band heaters play a crucial role in maintaining consistent temperatures during injection molding processes. By providing uniform heat distribution, these heaters help ensure the quality and precision of molded products, leading to improved production efficiency and product consistency.

Packaging Industry:

Mica band heaters are essential in the packaging industry for heat sealing applications. Their ability to deliver controlled and uniform heating is vital for sealing packaging materials effectively, ensuring product integrity and security during storage and transportation.

Food Industry:

In the food industry, Mica band heaters are utilized in food processing equipment for controlled heating. These heaters help maintain precise temperatures required for various food processing applications, contributing to food safety and quality standards. Their reliability and efficiency make them a valuable heating solution in food production processes.

Installation and Maintenance Ease:

The user-friendly design of Mica band heaters simplifies installation and reduces maintenance efforts, offering operational benefits to industries. Easy installation enables swift integration of the heaters into existing systems, minimizing setup time and ensuring quick deployment. Additionally, the reduced maintenance requirements of Mica band heaters help in minimizing downtime and operational disruptions, allowing businesses to maintain continuous production cycles and optimize efficiency.

Environmental Impact and Sustainability:

Mica band heaters not only offer operational benefits but also contribute to environmental sustainability. Their energy-efficient performance, coupled with precise heat distribution, reduces energy consumption and carbon emissions, aligning with sustainable practices. By promoting energy efficiency and minimizing waste, Mica band heaters support industries in their efforts to reduce their carbon footprint and adopt eco-friendly heating solutions, contributing to a more sustainable future. 

Applications

Band heaters are generally used to deliver heat around a pipe, tube, cylindrical vessel, as well as flat surfaces. Moreover, mica band heaters are commonly used in applications that necessitates a lower temperature. Furthermore, it can also tolerate some bending, resist water as well as chemicals and can withstand mechanical vibrations.

The ability to implement holes and cutouts, various termination styles, and clamping options are all possible. As a result, mica-insulated band heaters are widely utilized in wide range of applications, particularly plastics. The mica band heater can be used for a number of applications, including:

  • Blow Molding Machines
  • Drum Heating
  • Extrusion Die
  • Plastic Extruders
  • Plastic Injection Molding Machines
  • Paper Processing Equipment
  • Food Processing Industries.
  • External Tank and Vessel Heating.
  • Blown Film Dies.
June 1, 2025

Air Duct Heater for Industrial Uses

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What is an air duct heater?

Air duct heater are assembly of heating elements that are intended to use in air handling and conditioning systems. They are utilized to warm streams of air or gases in circulation. Furthermore, duct heaters are heat-transfer devices composed of heating elements mounted in a frame or duct. Air duct heaters are classified into two types: tubular heaters and finned tubular heaters. A bundle of several smaller duct heaters can be made and assembled in series for high heat duty in specific applications. They are primarily used for heating, ventilation, and air conditioning (HVAC), although they can also be helpful for drying or preheating solid objects.

Areas separated from the main HVAC unit might experience inadequate air conditioning and heating. The solution is Marathon heater’s duct heaters, which provide enhanced comfort and system efficiency by maintaining or accelerating warm air flow throughout a structure’s ductwork. Marathon Heater manufactures air duct heaters that can heat new or recycled air up to 650 °C and have customizable power as well as voltage ratings based on the customer’s needs.

Applications of Air Duct Heaters

  • Heat treating as well as conditioning
  • Multi-zone reheating
  • Heating, ventilation, and air conditioning (HVAC) in industrial and residential buildings
  • Industrial hot air generation
  • Drying of air in power plants
  • Automotive industry
  • Air drying as well as handling operations