DW-HF-60KW Induction Heater | Induction Heating Equipment for Brazing, Hardening and Shrink Fitting

Table of Contents

• Quick Answer
• What Is This Product?
• Key Applications
• Suitable Materials
• Working Principle
• Technical Specifications
• Recommended Model Selection
• Process Workflow
• Coil and Fixture Design
• Control System and Automation
• Common Problems and Solutions
• Engineering Selection Guide
• Advantages
• Limitations
• Why Choose HLQ Induction Equipment?
• FAQ

DW-HF-60KW induction heating equipment is a high-frequency industrial induction heater designed for brazing, hardening, annealing, shrink fitting, soldering, preheating and localized metal heat treatment. With 60KVA oscillating power and a 30–80kHz frequency range, it is suitable for heating steel, stainless steel, copper, brass, carbide tools and many conductive metal components. The machine solves common factory problems such as slow flame heating, unstable brazing quality, uneven surface hardening, high operator dependence and difficult automation. It provides fast heating, clean operation, 100% duty cycle capability and stable process control for industrial production.

Quick Answer

The DW-HF-60KW induction heating equipment is a 60KVA high-frequency induction heating machine used for medium-size brazing, surface hardening, annealing, shrink fitting, soldering and metal preheating applications. It is best suited for workpieces that need fast, localized and repeatable heating, such as copper tube joints, brass fittings, carbide tools, gears, shafts, bearings, sleeves and mechanical components. Its 30–80kHz frequency range makes it especially useful for shallow to medium-depth heating where precise heat concentration is more important than deep through-heating.

What Is This Product?

DW-HF-60KW is a high-frequency induction heating system. It converts three-phase industrial power into high-frequency current and sends this energy to a customized copper induction coil. When a conductive metal workpiece is placed inside or near the coil, an alternating magnetic field induces eddy currents inside the metal. These currents create heat directly inside the workpiece.

Unlike flame heating, the induction coil does not need direct contact with the workpiece. Unlike furnace heating, it does not need to heat a large chamber before heating the part. The heat is generated inside the metal itself, so the heating process is faster, cleaner and more controllable. This is why the DW-HF-60KW is suitable for industrial users who need higher production speed, better repeatability and more stable heating quality.

In practical factory use, the DW-HF-60KW can be configured with different induction coils, fixtures, cooling systems and optional temperature control devices. One power supply can support different heating tasks if the power, frequency, coil design and workpiece size are properly matched.

Key Applications

The DW-HF-60KW is positioned between small portable induction heaters and heavy-duty medium-frequency systems. It has enough power for many industrial brazing, hardening and shrink fitting applications while remaining compact and flexible. It is commonly selected when 15kW, 25kW or 35kW machines are too small, but a 100kW or 160kW system is unnecessary.

Suitable Materials

The DW-HF-60KW can heat many conductive metals. Magnetic steels heat efficiently because both eddy current heating and hysteresis heating contribute before the Curie temperature. Copper and aluminum can also be heated, but they require good coil coupling because they conduct heat and electricity very efficiently.

Working Principle

The DW-HF-60KW works through electromagnetic induction. The power supply converts 3-phase 380V input power into high-frequency output current. This current flows through a water-cooled copper induction coil. The coil generates an alternating magnetic field around the workpiece. When the metal part is placed inside this magnetic field, eddy currents are induced inside the conductive material. These eddy currents produce heat because of the electrical resistance of the metal.

For magnetic steel parts, magnetic hysteresis also contributes to heating below the Curie temperature. For non-magnetic materials such as copper, brass and many stainless steels, eddy current heating is the main mechanism. The heating result depends on frequency, coil shape, coil-to-workpiece distance, heating time, power setting, material properties and cooling conditions.

Technical Specifications

Recommended Model Selection

DW-HF-60KW is recommended when a factory needs more heating capacity than small 15kW–35kW machines but does not require a large 100kW–160kW system. The following table gives practical selection references.

Process Workflow

A stable induction heating result depends on correct process setup. Before mass production, engineers should test the workpiece with the selected coil, confirm heating time, check temperature distribution and verify the final metallurgical or assembly result.

Coil and Fixture Design

The induction coil determines where the magnetic field is concentrated. For the DW-HF-60KW, coil design is especially important because the machine is often used for localized heating. A poorly designed coil may cause slow heating, uneven temperature, unstable brazing or power supply alarms.

Fixture Design Checklist

Control System and Automation

The DW-HF-60KW can be used as a manual workstation or integrated into a semi-automatic heating station. For repeated production, power, time and workpiece positioning should be controlled as consistently as possible. For hardening applications, quenching timing and water spray design are also critical.

Common Problems and Solutions

Engineering Selection Guide

Before selecting the DW-HF-60KW, buyers should confirm whether the process needs shallow, localized high-frequency heating or deeper through-heating. This machine is strong for brazing, hardening, shrink fitting and localized heating, but large billets, large aluminum melting or deep through-heating applications may require MF, SRF or KGPS series.

Advantages

Limitations

The DW-HF-60KW is a high-frequency induction heater, so it is not the best solution for every heating process. It is excellent for localized heating, but very large workpieces or deep through-heating applications may require lower-frequency or higher-power systems.

Why Choose HLQ Induction Equipment?

HLQ Induction Equipment Co., Ltd. provides industrial induction heating machines for brazing, hardening, forging, melting, annealing, preheating, shrink fitting and customized electromagnetic heating applications. For the DW-HF-60KW, the key value is not only the power rating. A successful heating process requires the correct combination of machine power, frequency, coil design, fixture, cooling system and production parameters.

FAQ

1. What is the DW-HF-60KW induction heating equipment used for?

It is used for induction brazing, surface hardening, annealing, shrink fitting, soldering, localized preheating and general industrial metal heating. It is suitable for steel, stainless steel, copper, brass, carbide assemblies and many conductive metal parts.

2. What is the frequency range of DW-HF-60KW?

The oscillating frequency range is 30kHz to 80kHz. This high-frequency range is suitable for fast localized heating, brazing, surface hardening and shrink fitting.

3. What input power does the machine require?

The standard input is 3×380V, 50–60Hz. If the factory uses a different voltage such as 415V, 440V or 480V, voltage customization should be confirmed before ordering.

4. Can DW-HF-60KW work continuously?

Yes. The machine is designed for 100% duty cycle at suitable operating conditions. Stable cooling water flow and pressure are required for continuous operation.

5. What cooling water is required?

The recommended cooling water condition is no more than 0.3MPa pressure and at least 6L/min flow. For continuous production, a closed-loop industrial chiller is recommended.

6. Is DW-HF-60KW suitable for copper brazing?

Yes. It is suitable for copper tube brazing, brass fitting brazing and copper-to-steel or copper-to-brass joint heating, provided that the coil is properly designed and the joint size is within the suitable power range.

7. Is DW-HF-60KW suitable for gear hardening?

It can be used for small to medium gear surface hardening. The final result depends on gear size, material, tooth profile, required case depth, coil design and quenching method.

8. Can one machine use different coils?

Yes. Different coils can be connected to the same power supply if they are designed and matched correctly. Each workpiece usually needs its own coil and fixture for best results.

9. What information is needed for quotation?

Please provide workpiece material, size, weight, heating area, target temperature, required heating time, production capacity, application purpose, local voltage and available cooling water conditions. Photos or drawings are very helpful for coil design.

10. When should I choose a larger model instead of DW-HF-60KW?

Choose a larger model if the workpiece is large, heating time is too short, production capacity is high, or the process requires deeper heating. For large billets or melting, MF, SRF or KGPS systems may be more suitable.