The Myth, The Legend, The Microwave Heating & Cooking

In recent years, microwave heating has become increasingly popular all over the world, in particular for modern household as well as commercial food-processing applications, due to increased economic merits in many developing countries such as steady economic growth, high disposable income, etc. Microwave heating is known for its operational safety and nutrient retention capacity with minimal loss of heat-labile nutrients and vitamins, dietary antioxidant phenols and carotenoids. This review is aimed at providing a brief yet comprehensive update on prospects of microwave heating for food processing applications, with special emphasis on the benefits over conventional heating and its impact on food quality in terms of microbial and nutritional value changes.

Microwave cooking is a process whereby microwave rays produced by magnetrons are directed toward food items or heating medium, which absorb the electromagnetic energy volumetrically to achieve self-heating uniformly and rapidly. Microwave radiation stands distinguished from other electromagnetic radiation for its unique capability of heating any product or item from the core to the surface hence retaining all its essential nutrients and processing in the least possible time. Microwaves obey the laws of optics-they are transmitted, reflected or absorbed depending on the nature of materials.

The heating prodigies are distinctive for conventional or traditional and microwave heating and processing of materials. Conventional processing mechanisms include heating the surface and then transmitting the heat into the materials by the phenomenon of conduction, convention, and radiation.

Following are the advantages of Microwave heating and cooking over conventional heating –

  • Uniform heating
  • Require a smaller equipment 
  • Precisely controllable
  • No burned or overheated product
  • Increases Process speed
  • No fumes and pollutants
  • Acceptable chemical and physical effects
  • Selective/Volumetric heating
  • Improves reproducibility
  • Reduce wastage of heat
  • Minimum use of energy
  • Least processing time

The above listed points are more than enough to convince anybody of the merits microwave cooking holds over conventional or other type of cooking methodology and mechanisms. Let us further shed some light on a few Do’s and Don’ts to be considered before operating microwaves –

KERONE designs, manufactures and installs machinery batch as well as continuous industrial ovens, dryers, curing systems and many more, power sourced by microwave, infrared, radio frequency and convection radiation for all types of industrial processes. KERONE has constantly been the choice of multiple customers for their extensive ‘hands-on’ experience in various heating technologies and providing solutions for the same. We also produce machinery as per consumer specifications and provide technical assistance. Reducing environmental impacts is also an important issue, we concern about and hence all our equipment and solution development is focused on minimizing utilities consumption and better water and energy stewardship, reducing the product losses and wastages generated by the process.

Types of Process Heating Applications and Operations

Process heating finds its application in various type of industrial application across different industry verticals. Single manufacturing process involves different type of heat treatments. Hence, it’s important to understand which type of heating application is required in your processing. In layman’s language process heating is just generation of heat and transfer to product under process, however there are lot of technicalities involved based on type of product, time of manufacturing, desired output quality, intermediate processes and etc.

Process heating applications can be grouped into 14 key categories:

Agglomeration and Sintering Incineration/Thermal Oxidation
Calcining Melting: High-Temperature
Curing Melting: Low-Temperature
Drying Metals Reheating
Heating Fluid Separating
Forming Smelting
Heat Treating Other Heating Processes

* Application of Process heating is not limited to only these 14 categories, there are endless potential application of process heating. Above categories are based on various study materials and our experience.  

In this article we will try to cover 7 of them and other 7 will follow in upcoming articles.

Agglomeration and Sintering

Agglomeration and sintering is process of heating of a mass of fine particles below the melting point to form larger particles or solid parts. Sintering is normally used in the manufacturing of advanced ceramics and the production of specialty metals.

Application:

  • Metals Production

Equipment Type:

  • Various Furnace Types, Kilns, Microwave

Industry:

  • Metal
  • Ceramic

Calcining

Calcination is a process of heating a substance under controlled temperature and in a controlled environment. The process is done for decomposition of calcium carbonate to calcium oxide and carbon dioxide, through direct or indirect heating. Calcining is performed to improve the chroma, tinctorial strength, pigmentary texture, weather stability, light-fastness and thermal stability of pigment.

Application:

  • Lime Calcining

 Equipment Type:

  • Various Furnace Types

Industry:

  • Cement
  • Wallboard
  • Pulp and Paper Manufacturing
  • Primary Metal

Curing

Curing process employed in polymer chemistry and process engineering applications that produces/increase the toughening or hardening of a polymer material by cross-linking of polymer chains. Curing is also used to speed up the cure of polyurethane rubbers and plastics, platinum silicone rubbers, epoxy resins and other type of materials. This process is usually performed in controlled heating environment. In the manufacturing of plastics, curing is the cross-linking reaction of a polymer, also common step in the application of coatings to metallic and non-metallic materials.

Application:

  • Coating
  • Polymer Production
  • Enameling

 Equipment Type:

  • Various Furnace Types
  • Ovens
  • Kilns
  • Lehrs
  • Infrared
  • UV
  • Electron Beam
  • Induction

Industry:

  • Ceramics
  • Stone
  • Glass
  • Primary Metals
  • Chemicals
  • Plastics and Rubber

Drying

Drying process is performed to eliminate or remove moisture, water and other solvents from the material under processing through direct or indirect heating. Drying is very common application found in almost all type of industries such as stone, clay, glass industries, food processing, sand, textile, pharmaceutical, chemical and ceramic are only few of them. There are several types of dryer’s present operation in batch and/or continuous mode like Conventional Dryers, Microwave Dryers, Radio Frequency Dryers, Infrared Dryers, HOT AIR Dryer – Stenter, Tunnel Dryers, Pneumatic/ Flash Dryer, Drum Dryers, Spray Drying, Contact Drying- Steam Cylinders/Can, Fluid Bed Dryers, Rotary Dryers and etc.

Application:

  • Water, Moisture and Organic Compound Removal

Equipment type:

  • Fuel-Based Dryers
  • Hot Air/steam
  • Infrared
  • Resistance
  • Microwave
  • Radio-Frequency

Industry:

  • Stone
  • Clay
  • Glass Industries
  • Food Processing
  • Sand
  • Textile
  • Pharmaceutical
  • Chemical
  • Ceramic
  • Petroleum Refining
  • Agricultural
  • Pulp and Paper

Fluid Heating

In process of fluid heating the temperature of a liquid or gas increased, to achieve the complete or partial vaporization of the fluid, and is performed for a wide range of purposes in many industries, including chemicals, food processing, and petroleum refining. In chemical manufacturing, fluids are heated in both batch and continuous processes to induce or moderate a chemical reaction. Food processing applications include cooking, fermentation, and sterilization. In petroleum refining, fluid heating is used to distil crude oil into several component products.

Application:

  • Food Preparation
  • Chemical Production
  • Reforming
  • Distillation
  • Cracking
  • Hydro-treating

Equipment Type:

  • Various Furnace Types
  • Reactors
  • Resistance Heaters
  • Microwave
  • Infrared
  • Fuel-based Fluid Heaters
  • Immersion Heaters

Application:

  • Agricultural and Food
  • Chemical Manufacturing
  • Petroleum Refining

 Forming

Forming operations, such as extrusion and molding, use process heating to improve or sustain the workability of materials. Examples include the extrusion of rubber and plastics, the hot-shaping of glass, and plastic thermoforming.

Application:

  • Extrusion
  • Molding

Equipment Type:

  • Various Ovens and Furnaces

Industry:

  • Rubber
  • Plastics
  • Glass

Heat Treating

Hardness, strength, flexibility, and the reduction of residual stresses are achieved by heat treating the material in controlled heating and cooling environment. Heat treating processes need the accurate control of temperature over the heating cycle. Heat treating is used extensively in metals, glass, ceramic and plastic industry for tempering and annealing.

Application:

  • Hardening
  • Annealing
  • Tempering

Equipment Type:

  • Various Fuel-Based Furnace Types
  • Ovens
  • Kilns
  • Lehrs
  • Laser
  • Resistance
  • Induction
  • Electron Beam

Industry:

  • Primary Metals
  • Fabricated Metal Products
  • Glass
  • Ceramic
  • Plastic

Electric Infrared Process Heating System

Electric infrared processing systems are used for many applications such as heating, drying, curing, thermal-bonding, sintering, and sterilizing applications by manufacturing companies. Most common application of the electric infrared is in which only the surface of an object needs to be heated.

Infrared is the part of the electromagnetic spectrum that falls between visible light and radio waves. Infrared wavelengths range from 0.8 to 10 microns. Infrared energy, can be transmitted, absorbed, and reflected, like light and this is possible only when the object being heated is in line-of-sight of the emitters and/or reflector. Few infrared systems designed for to cure coatings that are not in line of sight.

A typical electric infrared heating systems will always consist of an emitter, a reflector system, and controls. Electric infrared systems are also consisting of a material handling system and a ventilation system. IR systems have capability to process (dry or cure) a product in very little span of time.

Electric infrared system is more suitable of flat product’s heating, drying and curing, reason being the characteristic of infrared which heats the surface of product and the penetrates the heat within the deep of product. Product with complex or uneven or hidden surface requires hybrid IR systems with convection oven or material handling systems.

Common industrial applications of infrared are:

• Adhesive Drying
• Annealing and Curing of Rubber
• Drying of Parts (Coated with Paints or Varnishes)
• Drying Textiles and Paper
• Drying Coatings On Steel and Aluminium Coil
• Ink Curing
• Moulding Plastics
• Power Coating Curing
• Shrink Wrapping
• Silk Screening

Electric infrared processing system is even used in the application that requires direct-fired and fuel-fired heating. Hybrid electric system are another type of heat processing systems that is comprises of IR in conjunction with conventional or any other type of electromagnetic.

We at Kerone are having more than four decades of experience in designing various type of IR and hybrid processing system.

Improve the performance of Existing Electric Infrared Systems

Technology, market dynamic, need of processing, time to market and demand of end products are changing at very rapid rate across all verticals for business. Name a business it would see huge change in less than 2 – 5 years (for few its 1 year) this reduction in change cycle and evolving technological need to processing require you to be on the top with your processing requirements. But big question is that if you have installed a processing heating/drying unit today to improves its performance you cannot replace it frequently.

We are trying to help you with some recommendations that may help you improving the performance of your existing infrared heating system, if not more but you can achieve 15% to 30% improvement:

Add Reflectors: IR work on principle of reflection, more the IR rays will collide with product/substrate under processing faster will be the process. Adding additional reflectors to sides and/or top and /or bottom of your IR oven will help you achieving more IR ray exposure to product.

Keep it clean: It might be sounding very basic, but yes cleaned emitter and reflectors provide better emission of IR ray and reflection within the oven. This contributes to efficiency by more radiation on targeted substrate.

Consider Zoning: Zoning refers to having multiple zone with different temperature configuration, different zoned oven results in better performance and efficiency by radiating energy appropriately on the product. Any type of zoning horizontal or vertical can be achieved by placing new emitters carefully of same or different wavelength.

Movable infrared bank: Processing smaller and larger product happing with the amount of IR ray strikes product, hence having movable IR bank can help us in moving the bank near and far from the product for achieving maximum reflection.

Sophisticated control mechanism: Improve the type of control systems placed. On top of providing zoning, control system can also deliver a variable control instead of simple on/ off control. Some systems employ “closed-loop” control that can accurately distribute the essential amount of radiant energy to the product, even for varying product size, shape, or colour, etc.

Periodic Testing and maintenance: Ensure that periodic testing and maintenance activity is performed on the oven and emitters for correctness of operation and radiation. A data log can help in understanding the complete performance of systems.

Involve experts: It always better to take advice from the experts such as Kerone, who can help you and guide you to make your process more efficient and cost effective, this will help you in keeping the pace with evolving technology.

IR and MW heating Systems increases productivity of flameproof and water-repellent fabric

A textile is a flexible material, consisting of a network of natural or artificial fibres made by spinning raw fibres from plants, animals and other minerals. Textile more commonly is known as ‘Fabric’ or ‘Cloth’ in textile assembly trades, though there are subtle differences in these terms in specialized usage. The creation of textiles involves several processes than one might think. The production of fibres are spun into yarns, and then used to create fabrics into many other sub-processes. Textiles vary from, cotton, flax, jute, wool, silk, ramie, leather or synthetic materials like nylon, polyester, rayon etc.

In India, traditionally, after agriculture textile production is the only industry that has generated huge employment for both skilled and unskilled labour. India is the second largest producer of fibre in the world and the major fibre produced is cotton which is about 60% of the whole textile production.

Heat is an integral part of many textile processes. There are process heating systems used in textile production process supplying direct and indirect heat by means of numerous machinery produced by KERONE Engineering Solutions Ltd. Microwave and Infrared heaters find extensive use in the textile industry. These heaters find application in the following various processes:

  • Coating
  • Embossing
  • Lamination
  • heat setting
  • moisture evaporation
  • print drying

IR and MW are very effective mediums for these applications with a different level of precision and other advantages including cost saving, less energy consumption, increases line speed etc. Efficient use of these heating systems has increased the productivity of flameproof and water-repellent fabrics.

KERONE has always been the decision of various clients for its broad ‘hands-on’ involvement of use of microwave and infrared in the processes of textile industry. Demystifying the numerous process of textile production and, we extend different machinery facilities and help to our regarded customers according to their particular procedure requisite. Diminishing natural effects is likewise a critical viewpoint for any preparing industry, and thus the entirety of our hardware and arrangement improvement is centered on limiting utilities consumption and better water and vitality stewardship, decreasing the product losses and wastages produced by the procedure.

Why choose us?

Since the last 42 years, accuracy, efficiency, machine quality and output quality are not just words but KERONE’s lifetime commitment towards our profession since its inception, creating a base of more than 1000 loyal customers. Our systems are used to meet the varying demands of numerous industrial applications – all with a level of precision that manufacturers seek. Fulfilling demands as per client’s specification has been our USP and we strive to carry the same forward. We also provide detailed assistance for installation without much hassle of complex functioning of the machinery. We always strive to achieve more than client satisfaction with our timely delivery, quality and efficiency towards all equipment manufactured by us.

Strong Casting and Exquisite Molding, by Modern Foundry Technologies

A foundry is an industrial facility that produces metal castings. Metals are cast into shapes by liquefying them into a fluid, pouring the metal into a mold, and removing or emptying the form material after the metal has solidified as it cools. The most widely recognized metals prepared are aluminum and solid metal. However, other metals, for example, bronze, metal, steel, magnesium, and zinc, are likewise used to create castings in foundries.

Foundry processes can be divided into two types – ferrous foundries and non-ferrous foundries i.e. the type of metal they use for casting of the moulds. Ferrous and Non-ferrous metals are distinguished by the presence of iron in the metal. Ferrous metals are defined as those metals that contain iron. Non-ferrous metals do not. Iron and its types like cast irons, grey iron, ductile iron, steel and other iron alloys are the examples of ferrous metals. Whereas Non-ferrous metals include every metal and alloy that does not contain iron, a short list of non-ferrous metals –

  • Precious metals like silver, platinum, and gold
  • Copper and its alloys like bronze and brass
  • Nickle, Palladium, Platinum
  •  Aluminum
  • Titanium
  • Tin, Lead
  • Zinc

Ferrous metals are the most well-known decision for castings, frequently picked for their cost-productivity and their mechanical properties. Now and again it’s not the quality of a metal that manages the decision, yet properties, for example, weight, corrosion resistance, or non-attraction. Non-ferrous alloys like bronze and brass can likewise be picked for tradition or for their delicacy.

Applications of Foundry –

  • De-waxing of casting moulds
  • Drying of casting moulds
  • Hardening of foundry moulds
  • Regeneration of casting mould waxes
  • Removing of solid objects from moulds
  • Core drying

The history of foundry traced back to the ancient period in which metallic objects in the form of coins, arrows, and household articles were in use. The casting process is said to have been practiced in early historic times by the craftsmen of Greek and Roman civilizations since then the role of metals has acquired unique significance. In modern times, mechanization leads to increased production, improved quality and reduction in production costs. Measures that aim at improving working conditions, delivering better quality products deserve enthusiastic support.

KERONE has always been the choice of various clients for its broad ‘hands-on’ involvement of use of microwave, radio frequency and infrared in all the foundry processes. Demystifying the numerous process of foundry casting and molding, we extend different machinery facilities and help to our regarded customers according to their particular procedure requisite. Diminishing natural effects is likewise a critical viewpoint for any preparing industry, and thus the entirety of our hardware and arrangement improvement is centered on limiting utilities consumption and better water and vitality stewardship, decreasing the product losses and wastages produced by the procedure.

Why choose us?

Since the last 42 years, accuracy, efficiency, machine quality and output quality are not just words but KERONE’s lifetime commitment towards our profession since its inception, creating a base of more than 1000 loyal customers. Our systems are used to meet the varying demands of numerous industrial applications – all with a level of precision that manufacturers seek. Fulfilling demands as per client’s specification has been our USP and we strive to carry the same forward. We also provide detailed assistance for installation without much hassle of complex functioning of the machinery. We always strive to achieve more than client satisfaction with our timely delivery, quality and efficiency towards all equipment manufactured by us.

Microwave Radiation’s Role in Glass Processing Industry

Glass is a solid-like and transparent material that is used in numerous applications in our daily lives. It is a sustainable, fully recyclable material which provides great environmental benefits such as contributing to mitigating climate change and saving precious natural resources. It is also highly appreciated in many applications for its inert nature and its contributions to safeguarding people’s health ad well being. It is an unlimited material whose number of applications is constantly evolving and which is more and more used in combination with other material for high-tech applications.

Glass processing is energy intensive, therefore the possibility to reduce energy consumption by selective energy intake into portions of glass using microwave heating is investigated. Glass products like bottles, jars, windows, mirrors, tableware, automobile parts etc. are some of the most commonly produced. Microwave heating is a process whereby microwave rays produced by magnetrons are directed toward reactants or heating medium, which absorb the electromagnetic energy volumetrically to achieve self-heating uniformly and rapidly. Microwaves obey the laws of optics-they are transmitted, reflected or absorbed depending on the nature of materials.

Strong absorption of the radiation was achieved by preheating the glasses, or by the application of microwave absorbing coatings, or by hydration. Experiments in melting, refining, reheating for forming, thermal toughening and surface ion exchange showed that the principal advantage of microwave radiation is rapidity of heating and a capability to heat hot areas of the glass selectively while leaving the cooler areas unaffected. Control of the uniformity and rate of heating were the principal difficulties which were overcome in due course of time. And the industrial microwave proved to be a better energy source for heating glass because it is easily controllable, is able to heat glass volumetrically or exclusively (as required by the specific task), and provides very high efficiency.

The use of microwave (MW) radiation in glass processing is reviewed and compared to the usual processing techniques –

  • Melting – of various raw materials in appropriate proportion at an elevated temperature and removal of impurities to get a homogenous melt.
  • Forming – permits molten glass to be shaped into flat sheets and filaments by controlling the viscosity. The most common types of glass forming be –
    1: Flat glass
    2: Glass fibers
    3: Continuous glass fibers
    4: Glass tubing
    5: Toughened or tempered glass
    6: Laminated Glass
  • Annealing – of the molten glass after setting into desired shapes
  • Inspection & testing – performed after the manufacturing process to ensure the quality level of the product is within acceptable standards.
  • Secondary Processing – Applying of special coatings or labeling

MW heating is known as a much-faster process (requiring minutes rather than hours), yielding good product quality, in comparison with the prolonged conventional thermal treatment of glass precursors.

Shedding some light on the characteristics of Microwave heating:

There are some characteristics of microwave heating that other heating methods (conventional heating method) do not have the following –

  • Internal heating
  • Rapid heating, Selective heating
  • High heating efficiency, Rapid response and temperature control
  • Heating uniformity, Clean energy
  • Good working and operating environment

Why choose us?

Since the last 42 years, KERONE has been designing, manufacturing and installing machinery, power sourced by microwave, infrared, radio frequency and convection radiation for all types of industries including Glass. Accuracy, efficiency, machine quality and output quality are not just words but KERONE’s lifetime commitment towards our profession since its inception, creating a base of more than 1000 loyal customers. Our microwave heating systems are used to meet the varying demands of numerous industrial applications – all with a level of precision that manufacturers seek. Fulfilling demands as per client’s specification has been our USP and we strive to carry the same forward. We also provide detailed assistance for installation without much hassle of complex functioning of the machinery. We always strive to achieve more than client satisfaction with our timely delivery, quality and efficiency towards every oven manufactured by us.

Organic Food and its increasing consumer demand

Organic Food Processing is where organic raw materials are processed into food and drink. The organics standard of food processing is to protect the food constituents so that organic ingredients are used, and encourage the avoidance of unnecessary chemical or physical. Organic labeling offers consumers, the confidence that the eatables they consume are produced under controlled organic standards. Organic food should be of high nutritional and high natural quality. With the growing awareness even the governments of various countries have setup a separate body to monitor the whole Organic Processing System, in India that being National Program for Organic Production (NPOP). India is one of the upcoming leading processors in this sector.

Some private standards demand that organic food should fulfill the criteria of wholesome nutrition, where processing methods must be seen as relevant tools. Most processing methods have more or less strong influences on product properties. Heat treatments have in general a negative impact on food with regard to nutritional quality particularly on lipids, proteins and vitamins, but with regard to food safety heat treatments have a positive impact. A product cannot be sold as organic without organic certification so there is full traceability and authenticity behind the organic label. Organic Farming is all about working with nature rather than against.

Some of the important standards to be specified, if the label on a product says: ‘Organic’

  • No Genetically Modified Organisms
  • No pesticides
  • No artificial fertilizers
  • No Cloned or artificial genetic breeding
  • No artificial additives
  • No hydrogenated fats

Organic Agriculture is a holistic production management system which promotes and enhances agro-ecosystem health, including biodiversity, biological cycles and soil biological activity. These farm practices are more environmental-friendly, applying technologies for food processing that reduces chemical and energy consumptions and emissions as well as novel analytical techniques for R&D. These technologies and processes also reduce the generation of process-induced toxins (e.g., trans fats, acrylamide, D-amino acids) according to consumer perceptions.

Organic is the fastest growing sector of the food industry with global sales approaching US $40 billion in 2006. The largest increases in organic food production have been in Asia, Africa and Latin America. All three regions have reported triple-digit growth in organic farmland since 2000.

Following processes listed are used for organic food processing techniques:

  • Clarification
  • Skimming
  • Ultra filtration
  • Centrifugation
  • Pasteurization
  • Fermentation
  • Sterilization
  • Concentration
  • Preservation
  • Blanching
  • Extrusion
  • Reverse osmosis
  • Microwave/infrared heating

KERONE designs, manufactures and installs machinery batch as well as continuous, power sourced by microwave, infrared, radio frequency and convection radiation for all types of processes including organic food production & processing. KERONE has constantly been the choice of multiple customers for their extensive ‘hands-on’ experience of organic food processing. By demystifying the processing of organic foods we provide various machinery facilities and provide assistance to our esteemed clients. Reducing environmental impacts is also an important aspect for any processing industry, and hence all our equipment and solution development is focused on minimizing utilities consumption and better water and energy stewardship, reducing the product losses and wastages generated by the process.

Why choose us?

Since the last 42 years, accuracy, efficiency, machine quality and output quality are not just words but KERONE’s lifetime commitment towards our profession since its inception, creating a base of more than 1000 loyal customers. Our systems are used to meet the varying demands of numerous industrial applications – all with a level of precision that manufacturers seek. Fulfilling demands as per client’s specification has been our USP and we strive to carry the same forward. We also provide detailed assistance for installation without much hassle of complex functioning of the machinery. We always strive to achieve more than client satisfaction with our timely delivery, quality and efficiency towards every oven manufactured by us.

Industrial Automation, kick-started by Microwave and Infrared Radiation

Since after the Industrial Revolution in the 18th century, automated machines and robotics have gradually taken over the maximum share of production in many industries. Science and technology kept on progressing and finding more and more convenient solutions for reducing human labour and efforts. The results were certainly effective and successful with the decrease in manmade errors and increase in product precision. Now this transfer of control of the manufacturing industry from human workforce to the machines was eventually known as the Industrial Automation.

Industrial automation is the use of control systems, such as computers or robots, information technologies and Artificial Intelligence (AI) used to have control on different activities of an industry without critical intercession from humans and to give programmed control execution. In businesses, control techniques utilize a lot of innovations which are actualized to desired performance or output, making the automation framework most fundamental for enterprises.

Apart from providing improved productivity and advanced quality in products, automation has numerous other advantages, such as listed below –

  • Reduces Labour Fatigue
  • Prevents damage of products & materials
  • Never violates instruction set
  • Has competent inspection capabilities
  • Increases efficiency
  • Better data collection
  • Economic use of money
  • Ensures safety
  • Increases profitability
  • No personal benefit required (bonuses, perks, pensions etc.)

Automation setups can be broken down into different types –

  1. Fixed Automation – the equipment configuration is a fixed set of machines.
  2. Programmable Automation – Programs can be changed or added & deducted in the programmable devices.
  3. Flexible Automation – Equipment, programs or sequence can be changed
  4. Integrated Automation – Fully automated without any human intervention

There stands no doubt that, these hi-tech machines and automated robots are power sourced or kick-started by electromagnetic radiation, electricity or by burning of fuels and lubricants. KERONE designs, manufactures and installs machinery batch as well as continuous, power sourced by microwave, infrared, radio frequency and convection radiation for all types of industrial processes. KERONE has constantly been the choice of multiple customers for its extensive ‘hands-on’ experience in various heating technologies, their functions and applications while providing solutions for the same. We also produce machinery as per consumer specifications and provide technical assistance. Reducing environmental impacts is also an important issue, we concern about and hence all our equipment and solution development is focused on minimizing utilities consumption and better water and energy stewardship, reducing the product losses and wastage generated by the process.

Why choose us?

Since the last 42 years, accuracy, efficiency, machine quality and output quality are not just words but KERONE’s lifetime commitment towards our profession since its inception, creating a base of more than 1000 loyal customers. Our systems are used to meet the varying demands of numerous industrial applications – all with a level of precision that manufacturers seek. Fulfilling demands as per client’s specification has been our USP and we strive to carry the same forward. We also provide detailed assistance for installation without much hassle of complex functioning of the machinery. We always strive to achieve more than client satisfaction with our timely delivery, quality and efficiency towards every oven manufactured by us.

Vacuum Microwave Wood Drying averts cracks and discolouration

Wood Drying also known as Seasoning lumber or Wood seasoning refers to reducing the moisture content of wood prior to its use. Two main uses of seasoned lumber –
– Wood Working: used mainly as construction material as structural support to a building or woodworking objects.
– Wood Burning: used mainly for domestic or small scale commercial purposes.
Wood is divided, according to its botanical origin, into two kinds: Softwood and Hardwood. Softwoods are from coniferous trees and hardwoods from broad-leaved trees. Softwoods are lighter and generally simple in structure hence easier to process, whereas hardwoods are harder and more complex due to which permeability of hardwood is very, making it more difficult to dry. The density of softwoods ranges between 350 kg/m³ – 700 kg/m³, while hardwoods are 450 kg/m³ – 1250 kg/m³. Both consist of approximately 12% of moisture. In spite of the fact that there are around a hundred times a greater number of types of hardwood trees than softwood trees, the capacity to be dried and processed quicker and all the more effectively makes softwood the principle supply of commercial wood today.

There are two main Microwave wood drying methods namely

  1. Vacuum microwave dryer
  2. Non vacuum microwave dryer

Non Vacuum Microwave Dryer is commonly used for regular drying whereas Vacuum microwave wood dryer is a high tech and quality drying way. It is applied for high quality required and hard wood drying. Vacuum microwave dryer could rapidly evacuate dampness under a low temperature. The wood interior air has an impact on wood drying capacity. Positive air permeability has a superior drying result.
Features of Vacuum Microwave Dryer:

  • Process drying wood in confined space
  • Lower pressure to accelerate moisture movement out of wood
  • Shorter drying period compared to conventional drying
  • Maintains original wood color with minimum discolouration
  • Heat both internal and external of wood
  • Kills all kinds of insects to avoid wood mildew and other issues
  • Better drying result
  • Lower energy consumption,
  • Large capacity,
  • Suitable for expensive or high quality wood.
  • Energy saving and environmental friendly
  • Averagely drying to obtain quality wood
  • Reaches accurate water percentage, without deformation and crack

KERONE has constantly been the choice of multiple customers for its extensive ‘hands-on’ experience of application of electromagnetic radiation in wood drying industry. Demystifying the intensive process of wood drying we provide various machinery facilities and assistance to our esteemed clients as per their specific process requirement. Reducing environmental impacts is also an important aspect for any processing industry, and hence all our equipment and solution development is focused on minimizing utilities consumption and better water and energy stewardship, reducing the product losses and wastages generated by the process.
Why choose us?
Since the last 42 years, accuracy, efficiency, machine quality and output quality are not just words but KERONE’s lifetime commitment towards our profession since its inception, creating a base of more than 1000 loyal customers. Our systems are used to meet the varying demands of numerous industrial applications – all with a level of precision that manufacturers seek. Fulfilling demands as per client’s specification has been our USP and we strive to carry the same forward. We also provide detailed assistance for installation without much hassle of complex functioning of the machinery. We always strive to achieve more than client satisfaction with our timely delivery, quality and efficiency towards all equipment manufactured by us.