What is it?

Induction heating is a process which is used to bond, harden or soften metals or other conductive materials. For modern manufacturing processes, induction heating offers an attractive combination of speed, consistency, control and energy efficiency.

The basic principles of induction heating have been understood and applied to manufacturing since the 1920s. During World War II, the technology developed rapidly to meet urgent wartime requirements for a fast, reliable process to harden metal engine parts.

More recently, the focus on lean manufacturing techniques and emphasis on improved quality control have led to a rediscovery of induction technology, along with the development of precisely controlled, all solid state induction power supplies.

How induction heating works?

When an alternating electrical current is applied to the primary of a transformer, an alternating magnetic field is created. According to Faraday’s Law, if the secondary of the transformer is located within the magnetic field, an electric current will be induced.

In a basic induction heating setup, a power supply sends an AC current through an inductor (often a copper coil), and the part to be heated (the workpiece) is placed inside the inductor. The inductor serves as the transformer primary and the part to be heated becomes a short circuit secondary. When a metal part is placed within the inductor and enters the magnetic field, circulating eddy currents are induced within the part.

Induction heating fundamentals

Induction heating fundamentals

As shown in the diagram, these eddy currents flow against the electrical resistivity of the metal, generating precise and localized heat without any direct contact between the part and the inductor. This heating occurs with both magnetic and non-magnetic parts, and is often referred to as the “Joule effect“, referring to Joule’s first law – a scientific formula expressing the relationship between heat produced and electrical current flowing through a conductor.

Induction heating benefits

Why choose induction heating over convection, radiant, open flame or another heating method?

Here’s a short summary of the major advantages that induction heating offers for manufacturing:

Maximized Productivity

Production rates can be maximized because induction works so quickly; heat is developed directly and instantly (Example >1000ºC in <1 second) inside the part. Start-up is virtually instantaneous; no warm up or cool down cycle is required. The induction heating process can be completed on the manufacturing floor, next to the cold or hot forming machine, instead of sending batches of parts to a remote furnace area or subcontractor.

Energy Efficiency

This uniquely energy-efficient process converts up to 90% of the expended energy into useful heat; batch furnaces are generally only 45% energy-efficient. And since induction requires no warm-up or cool-down cycle, stand-by heat losses are reduced to a bare minimum.

Control and automation process

Induction heating eliminates the inconsistencies and quality issues associated with open flame, torch heating and other methods. Once the system is properly calibrated and set up, there is no guess work or variation; the heating pattern is repeatable and consistent.

With our power supplies, precise temperature control provides uniform results; power can be instantly turned on or shut off. With closed loop temperature control, advanced induction heating systems have the capability to measure the temperature of each individual part. Specific ramp up, hold and ramp down rates can be established & data can be recorded for each part that is run.

Product Quality

With induction, the part to be heated never comes into direct contact with a flame or other heating element; the heat is induced within the part itself by alternating electrical current. As a result, product warpage, distortion and reject rates are minimized. For maximum product quality, the part can be isolated in an enclosed chamber with a vacuum, inert or reducing atmosphere to eliminate the effects of oxidation.

Green energy

Induction heating systems do not burn traditional fossil fuels; induction is a clean, non-polluting process which will help protect the environment. An induction system improves working conditions for your employees by eliminating smoke, waste heat, noxious emissions and loud noise. Heating is safe and efficient with no open flame to endanger the operator or obscure the process. Non-conductive materials are not affected and can be located in close proximity to the heating zone without damage.

Tindo induction heating solutions means to improve the installation operation and maintenance, to avoid production stoppages, to reduce the energy consumption and to increase the parts quality control.

So please do not hesitate to choose our induction heating jacketed cooking kettle.

Our company is specialized in the design, development, production and sales of jacket kettle. Below to introduce you to the installation and commissioning of jacket kettle:
1, open the box, you should check whether the jacket kettle products and accessories in the transport process of damage, if lost and damaged, please contact with us.
2, jacket kettle products manufactured before the performance tests have been carried out, the relative position of all parts have been installed adjusted, users generally only check, shall not disassemble, in order to avoid the re installation and adjustment improper product performance influence.
3, do not need to fix the jacket kettle, as long as the ground can be placed on the flat cement.
4, after the jacket kettle in place, please under the guidance of our technical staff will be fully assembled spare parts, and test equipment is complete and flexible.
5, the power supply should be in line with the requirements of the structure of the mixing equipment, the equipment must have a good grounding, so as to avoid leakage accident.

Full automatic stir fry pan is a common food machinery, daily working process should pay attention to the implementation of maintenance work, so as to effectively improve the service life of the automatic stirring frying pan, then we will give you details about the maintenance of automatic stir fry pan.
1, the general automatic stir frying pan after a period of time you will need to add oil to ensure its smooth operation.
2, automatic mixing wok need to pay attention to clean maintenance, that is, after each use to clean up in a timely manner, otherwise not only the remaining food will rot, but also affect the health of the machine.
3, some users directly flush, in fact this is just the first step of cleaning, cleaning completely automatic stirring frying pan with a towel and need to brush, in order to ensure that every corner of the clean wok stir automatically.

What is the Vacuum Frying Machine?

What is a vacuum fryer or vacuum frying machine? How come this is considered as a healthier option when frying food? Technically, this is a device which is primarily used for deep-frying food. The frying occurs inside a chamber which reduces the amount of oil that is absorbed by food. Hence, it considered as a healthier alternative to common fryers. Originally, this was meant to deep-fry potatoes, though today, it has been widely used for commercial purposes in frying various types of food such as fruits chips and vegetable chips.

If you choose our VF series machine,we make sure you can get the following advantage of the vacuum fried food:

1,Nutritional Advantages

Another advantage of using the vacuum fryer is that it retains the amount of nutrients that are originally in the food. Since it involves a locked-in procedure, even if the food is subjected to heat, more vitamins and minerals remain intact compared to traditional deep-frying. For example, if potatoes are deep-fried using regular pans and a whole lot of oil, the remaining Vitamin C in it after cooking is only 50%. On the other hand, with the use of a vacuum fryer, it has been observed that at least 95% of the original Vitamin C remains.

It has to be noted that the main reason why vacuum frying is considered to be healthier is because it does not involve the use of a lot of oil. That is why, the end product would not be soaked in whopping amount of fat. On the other hand, it should not be forgotten that this does not reduce the amount of carbohydrates. Hence, for people who would like to cut down their intake of carbs to be able to maintain ideal weight and health status, they should still take necessary precaution when eating food that are prepared using the vacuum fryer.

2,Better Food Quality

A vacuum fryer does not only contribute to the nutritional value of food. This is also used by various restaurants and food manufacturer because of its benefits when it comes to the aesthetics of the processed food. The vacuum fryer is used these days not just for potatoes but also for vegetables, fruits, fish and meat. It helps in keeping the vibrant color of the food. Aside from that, it also lowers the tendency of overcooking which could ruin the texture. With the use of this device, there is no need to put too many artificial flavoring too because the natural taste of the ingredients are preserved.

These positive results are possible with the use of vacuum fryer because it cooks food at a lower oil temperature. Because of the technology it uses, moisture and air is not present within the atmosphere while the food is being fried. Hence, the end product is much better compared to traditional, oil-soaked frying process.

Types of Vacuum Fryer

When dealing with the question, “What is a vacuum fryer”, it is also necessary to understand its types. The intermittent or batch type vacuum fryer is more appropriate for preparing small and middle portions of food or commercial food manufacturers. If you must need very huge capacity, you can use the continuous vacuum fryer, because this type can handle large quantities. However,most people like the batch type vacuum fryer,such as our VF200 Vacuum frying machine and VF400vacuum frying machine. Becuase the batch type has better vacuum condition,and produce the better food quality, and also the investment is much smaller than the continues vacuum fryer.

Jinan Tindo Vacuum Fryer system advantage:

1,The vacuum fryer’s frying Kettle bottom is jacketed design, used for keep the oil warm,together with the oil heating exchanger keep the oil temperature uniform always. The upper is inlet of raw material and de-oil part.

2,The top of vacuum fryer ,there is 7 axis SYNC erector which will makes the raw material basket up and down moving during frying. Will keep the raw material floating in the oil during frying.This is important to avoid the raw material stick together during frying, also can reduce the raw material deep into oil time, reduce oil content.

3,There is forced circulation oil groove and oil outlet in the vacuum fryer, make sure oil temperature uniform.

4,Choosing German brand vacuum sealing element, long lifespan, high level airtightness.

5,Choosing Japan brand bearing,top quality. Deoiling motor is Taiwan Wanshsin brand, top quality.

6,Special main oil inlet design, the oil impact the raw material in the basket, help the raw material suspension and rotation. Oil temperature uniform, and raw material no stick together.

7,SS304 material condenser with cold water storage tank, which very important to improve the vacuum level.

8,Heating exchanger heating the oil,make sure the oil temperature heating up fast, oil temperature steady, Keep oil in the fryer temperature constant.

9, Korea LS brand PLC and inverter,TUCHWIN/Mitsubishi Touch screen, Schneider Electric parts,German JUMO temperature sensor. Autonics brand photo-electricity eyes to monitoring the basket position of frying,de-oiling.

10, Steam heating pipes design reasonable,there are stainless steel pressure reducing valve, safety valve, brass solenoid valve, trap, Japan KIZT brass cut-off valve, two-stage steam filter. With bypass manual valve, in case the automatic valve no work during frying, will no effect the frying materials.

11, We are using the BV model water ring vacuum pump which is the most suitable for extracting steam. Also the premium configuration, use the Roots pump which can help the vacuum level to 500pa.

Our vacuum fryer is high-end design, if you want to produce top quality and taste vacuum fried vegetables and fruits, please do not hesitate to contact us.

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