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To request a quote, begin by providing some information to help us understand your process and your needs. One of our induction heating experts will follow-up with you to take the next steps.

Before shipment, engineers will measure and test the equipment multiple times to ensure it meets export standards. Afterwards, we will arrange air or sea freight according to customer requirements.

Yes, we have a growing library of working videos for our induction heating systems.

KEXIN provides detailed user manual and connection drawings for installation.

Your induction heater can be controlled from the front or rear panels. For more details, please check with the manual instruction.

Your induction heater accepts 3 phase line-voltages from 380V. Theinternal fuse selections anticipate the corresponding current levels for your equipment.

See your operator’s manual for more information.

Only trained or guided service persons are authorized. Portions inside the supply remain energized and hazardous after the AC Power Switch is off. Always turn off the customer-supplied fused disconnect before attempting any service.

We provide a one-year warranty for all KEXIN-manufactured equipment.

KEXIN’s induction heating systems are calibrated prior to shipment; after-sale service is available.

There may be circumstance in which you need to have your induction heater re-calibrated. Our service professionals can help you with this.

Our induction heating systems use circulating water to cool the internal components. In the process of heating your work-piece, the current flowing in the system and work head tank circuit heats the components, too. It is necessary to dispose of this excess heat to prevent damage to the components of the induction heating system.

The induction heater will immediately issue a “water shortage” alarm. Then you must stop working and check out the cooling water. Make sure that cooling water is sufficient then to start to work.

Maintaining the water quality is number one. Then you want to look at your process and make sure the induction heating coil is not getting bumped around and is not getting excessive flux build up if you’re in the brazing type environment. And just common sense maintenance is required. If you already own our systems, refer to your manual for more detailed instructions.

The components generating the electromagnetic field at your workpiece require cooling.

Each workhead provides a means of directing fresh water into and through the components, enabling the water to pick-up the excess heat and transfer it, either to drain or to cooling to be recycled back to the equipment.

Induction heating is often used in the heat treatment of metal items. The most common applications are induction hardening of steel parts, induction soldering/brazing as a means of joining metal components, and induction annealing to selectively soften an area of a steel part.

Induction heating is a flame-free, fast, clean, energy-efficient, and non-polluting form of heating that can be used to heat metals or change the properties of conductive material.

Given the options and the fundamental principle of induction heating, the most definitive limitation is its inability to efficiently heat non-conductive materials like plastics.

Electrically non-conductive materials do not heat directly with induction. However, these materials can be heated by conduction, convection or radiation using a conductive material between the induction coil and the non-conductive material.

Usually induction heating is not affected by painted steel parts, anodized aluminum parts or thin metallized coatings. Some metallic coatings, if thicker may sometimes get affected by induction.

Theoretically the closer the metal workpiece to the coil, the faster is the heating rate in the part. However, in production environments reasonable air gaps are used to overcome the design tolerances in workpieces, coils and the handling fixtures used to hold the parts.

A coil used to heat a 30in workpiece can certainly be used to heat a 10 in workpiece given the following two criteria. First there should be enough spare capability in the power supply to overcome the coupling loss to the 10 in workpiece in the larger coil. Second, the time to heat the smaller workpiece may be much longer given the poor coupling to the part.

The brazing process does not melt the base metals being joined yet produces strong robust joints. Brazing offers distinct advantages over other joining techniques:

• Similar and dissimilar metals can be brazed
• Brazing uses lower temperatures, resulting in less part distortion and joint stress
• Dimensional integrity of the finished product is easier to control
• Brazing produces strong low stress joints.

Induction overcomes the challenges of torch and furnace brazing by eliminating the need for a highly skilled operator. It also reduces energy costs and minimizes the equipment footprint, all while implementing a lean manufacturing process to produce superior quality parts.

Unlike soldering or tin soldering, brazing does not require melting the base materials to be joined. It uses a filler metal called a brazing alloy, which has a lower melting point than the base material. When heated, the brazing alloy melts and flows into the tiny gaps between the base materials, forming a strong and durable joint.

The brazing process offers excellent temperature control because the base material remains solid throughout the joining process. This prevents parts from warping or deforming, ensuring the final assembly retains its original shape and dimensions.

Brazing is versatile. It can be used to join a wide variety of materials, including dissimilar metals that are difficult to weld. This enables innovative designs and the manufacture of complex components.

• Throughput: induction generates heat only in the portion of the part needed for brazing
• Better efficiency
• Better quality with less part distortion
• Repeatability: after the coil and heating process are defined, you can count on a precise, consistent quality braze every time
• Easy integration: into a lean manufacturing process
• Safety: no open flame or hot furnace
• Small footprint: Frees up valuable factory floor space

Carbon and stainless steel have high resistivity – they couple well to induction energy and heat easily. However, they have poor thermal conductivity so the induction brazing of steel parts should not be rushed. With steel, it is important the heat is given time to soak through to the joint surface for proper flow and wetting out of the braze material.

Torch brazing is the most common form of brazing today, but requires a skilled operator. Furnace brazing is another widely used brazing technique.

Induction brazing addresses the issues of torch and furnace brazing by removing the requirement for a skilled operator, by reducing energy costs and by decreasing the equipment footprint while implementing a lean manufacturing process for higher quality parts.

The purpose of using braze filler material is to create a strong and durable bond between the surfaces of the materials being joined together. There are various types of braze alloys available, each specifically designed to melt, flow, and effectively bond the materials during the joining process. These alloys ensure proper wetting and bonding, resulting in a successful joint formation.

Hot forging involves heating a part to a temperature above its material recrystallization point, usually around 1100 °C (2012°F), before the actual forging process takes place. This technique allows the part to be shaped with less force, resulting in finished parts that have lower levels of residual stress. As a result, these forged parts are easier to machine or subject to heat treatment processes.

Forging is a manufacturing process involving the shaping of a metal through hammering, pressing, or rolling. These compressive forces are delivered with a hammer or die. Forging is often categorized according to the temperature at which it is performed—cold, warm, or hot forging. A wide range of metals can be forged.

Hot forging offers significant benefits for applications where material failure occurs due to cracking. In addition, it also helps to reduce press forces, making the process even more advantageous.

Forging applications typically require a combination of low frequency and adequate soak time for optimal performance. Frequencies in the 1-10 kHz range are typically used for forging applications.

Some advantages of induction forging include maintaining a consistent rate of production, increasing process efficiency, and minimizing the formation of scale.

Forging is a process that accepts a wide variety of materials, but the most common are: carbon steel, alloy steel, stainless steel, duplex and aluminum alloys, titanium, nickel, copper and brass.

Induction heating allows heating up or melting of an object without physical contact. The process uses high-frequency alternating currents to heat an electrically conductive material.

With induction, heat is generated directly in the metal, so there is no heat loss to the surrounding environment. It’s also a versatile way to heat metal, useful in melting a wide variety of materials, including ferrous and non-ferrous metals.

Induction equipment can melt/heat virtually all metals and materials including, gray and ductile iron, steel, copper and copper-based alloys, aluminum, zinc, reactive metals, precious metals, silicon and graphite.

Induction is practical across all aluminum melting applications and offers measurable advantages in efficiency, metal quality, operational flexibility, and workplace conditions.

Induction furnaces are an excellent option for melting stainless steel because they can reach high temperatures quickly, making the melting process faster and more efficient. They are also energy-efficient, which makes them an environmentally friendly option.

Induction Melting Furnace, Max Temperature: 1500-2000 degree Celsius.

Start with understanding where the heat needs to be generated in the part to perform the process, and then design the coil to achieve the heating effect. Similarly, frequency selection will depend on the induction heating application you’ll be using for your part.

Induction heating works on the principle of electromagnetic induction, where an alternating current (AC) flows through a coil, creating a rapidly alternating magnetic field. When a conductive material, such as a metal workpiece, is placed within this magnetic field, eddy currents are induced within it.

The shorter the distance, the more efficient the process will be. If you can have a gap of ten thousands of an inch, you will heat the parts very, very efficiently. It’s not practical in many environments to have that type of a tolerance though. So the question is what tolerance you have to maintain in your process and optimize accordingly.

The short answer is both the diameter and the spacing are extremely critical, especially if you’re trying to get good temperature signatures. There are a lot of processes where we actually don’t want the heating to be uniform. We want the heating to be more concentrated in one area than the other. So that’s where we play with the:

• diameter of the copper coils
• geometry of the copper coil
• spacing between the copper turns
• the diameter of the coil

This means the copper tubing is determined based on the power dissipation through that copper coil. If you have to dissipate a lot of power, obviously you’re going to go with a larger diameter copper tube because you have to run more water.

Yes, but when the length of the coil exceeds 4x to 8x its diameter, uniform heating at high power densities becomes difficult. In these instances, single-turn or multiple-turn coils that scan the length of the workpiece are often preferable.