60KW Electromagnetic Induction Heating Equipment
DW-HF-60kW Electromagnetic Induction Heating Equipment for Brazing, Hardening, Forging and Metal Heating
Table of Contents
- Quick Answer
- Product Overview
- Key Applications
- Suitable Materials
- Working Principle
- Technical Specifications
- Recommended Applications and Model Selection
- Engineering Selection Guide
- Process Workflow
- Induction Coil Design
- Cooling Water Requirements
- Common Problems and Solutions
- DW-HF-60kW vs 35kW and 45kW Models
- Why Choose HLQ Induction Equipment?
- FAQ
The DW-HF-60kW electromagnetic induction heating equipment is a high-frequency industrial induction heater designed for brazing, soldering, surface hardening, annealing, shrink fitting, forging preheating, rod heating and localized metal heating. With 60KVA oscillation power and 30–80kHz operating frequency, it is suitable for steel, stainless steel, copper, brass, carbide tools, diamond tools, gears, shafts, rods, tubes, fittings and mechanical components. The system provides fast heating, stable output, 100% duty cycle, compact structure and easy coil replacement. It helps manufacturers replace flame heating, improve repeatability, reduce defects and integrate heating into manual, semi-automatic or production-line processes.
Quick Answer
The DW-HF-60kW electromagnetic induction heating equipment is a high-frequency induction heater used for fast and localized heating of conductive metal parts. It is best suited for copper and brass tube brazing, diamond and carbide tool brazing, gear and shaft heat treatment, small-to-medium forging preheating, stainless steel vessel annealing, shrink fitting, quenching and precision metal heating. Compared with 35kW and 45kW models, the 60kW model provides higher heating power, faster cycle time and better capability for larger workpieces or higher production output. It is recommended when the heating area is larger, the material absorbs heat slowly, or the buyer needs stronger process stability for industrial production.
Product Overview
The DW-HF-60kW electromagnetic induction heating equipment is a water-cooled high-frequency induction power system for industrial metal heating applications. The equipment converts three-phase industrial AC power into high-frequency current. This current flows through a customized copper induction coil and creates an alternating magnetic field. When a conductive metal workpiece is placed inside or near the coil, eddy currents are induced in the workpiece and converted into heat.
This model is more powerful than compact 25kW, 35kW and 45kW high-frequency induction heaters. It is suitable for larger copper brazing joints, bigger carbide and diamond tools, small-to-medium forging parts, gear and shaft surface hardening, stainless steel vessel annealing and localized heating applications that require higher power density and faster production speed.
The current product page lists this model as DW-HF-60KW with 60KVA maximum oscillation power, 30–80kHz oscillation frequency, 66KVA maximum input power, cooling water pressure up to 0.3MPa with flow at least 6L/min, oscillating current of 20–120A, 100% duty cycle at 30°C, 90kg weight, main unit size of 650×285×610mm and extension unit size of 510×285×430mm. These specifications make it suitable for continuous industrial operation when cooling water and load matching are properly controlled.
Key Applications
The DW-HF-60kW induction heater can be used for many metal heating processes, including brazing, hardening, annealing, forging preheating, shrink fitting and localized thermal processing. The existing page lists applications such as heat treatment of gears and shafts, diamond tool brazing, electrical kettle bottom brazing, stainless steel vessel annealing, copper and brass tube brazing, rod forging heating, metal melting and part quenching.
| Application | Typical Workpiece | Recommended Use | Buyer Benefit |
|---|---|---|---|
| Induction Brazing | Copper tubes, brass fittings, stainless joints, electrical parts | Fast localized joint heating | Cleaner and more repeatable than flame brazing |
| Diamond Tool Brazing | Diamond segments, saw blades, core drill bits | Heating tool body and brazing filler zone | Improves joint consistency and production speed |
| Carbide Tool Brazing | Carbide tips, cutting tools, drill tools | Controlled brazing of carbide to steel holder | Reduces overheating and improves joint quality |
| Gear and Shaft Heat Treatment | Small gears, shafts, pins, sprockets | Surface hardening and quenching | Improves wear resistance and service life |
| Forging Preheating | Small rods, bars, billets, fastener blanks | Heating before forming or forging | Faster and cleaner than furnace preheating for small parts |
| Stainless Steel Annealing | Stainless vessels, tubes, rings, formed parts | Stress relief and local annealing | Improves formability and reduces residual stress |
| Shrink Fitting | Bearings, gears, bushings, sleeves, rings | Thermal expansion before assembly | Fast assembly without open flame |
| Cookware Bottom Brazing | Electrical kettle bottoms, stainless cookware base plates | Bonding and brazing of metal layers | Repeatable heating for production-line joining |
Suitable Materials
The DW-HF-60kW high-frequency induction heater can heat many conductive metals. The actual heating speed depends on material magnetic properties, electrical resistivity, thermal conductivity, workpiece size, coil design and coupling distance.
| Material | Heating Suitability | Typical Application | Engineering Notes |
|---|---|---|---|
| Carbon Steel | Very good | Hardening, quenching, preheating, forging | Magnetic steel heats efficiently and is suitable for surface hardening. |
| Alloy Steel | Very good | Gear hardening, shaft hardening, tool brazing | Requires correct heating temperature and quenching method. |
| Stainless Steel | Good | Annealing, brazing, shrink fitting, vessel heating | May require longer heating time than carbon steel. |
| Copper | Medium | Copper tube brazing, terminal heating, annealing | High conductivity requires good coil coupling and enough power. |
| Brass | Good | Brass fitting brazing, valve parts, connectors | Common material for induction brazing applications. |
| Carbide + Steel Holder | Suitable | Cutting tool and machining tool brazing | Heating is usually focused on the steel holder and brazing area. |
| Diamond Tool Segments | Suitable with metal base | Diamond saw blade and core bit brazing | Requires controlled heating to protect segment and filler quality. |
| Aluminum | Application dependent | Small part heating and special brazing | Requires careful coil design because aluminum is non-magnetic and highly conductive. |
Working Principle
The DW-HF-60kW induction heater works by electromagnetic induction. The power supply converts industrial AC power into high-frequency current. This current passes through a water-cooled copper induction coil. The coil produces an alternating magnetic field. When a conductive workpiece is placed in the magnetic field, eddy currents are generated inside the metal. The electrical resistance of the metal converts these eddy currents into heat.
High-frequency induction heating is especially useful for localized surface heating, brazing and small-to-medium components. The 30–80kHz frequency range of the DW-HF-60kW model supports fast heating of many brazing, hardening, annealing and preheating applications.
| Process Stage | What Happens | Control Parameter |
|---|---|---|
| Power Conversion | Three-phase AC is converted into high-frequency output | Input voltage, frequency, power setting |
| Magnetic Field Generation | High-frequency current flows through the induction coil | Coil turns, coil diameter, coil-workpiece gap |
| Eddy Current Heating | Induced current heats the workpiece internally | Material, geometry, frequency and power |
| Process Heating | Workpiece reaches brazing, hardening, annealing or forging temperature | Heating time, temperature feedback and power level |
| Cooling / Quenching | Part is cooled naturally, quenched or transferred to next station | Cooling method depends on application |
Technical Specifications
| Parameter | Specification | Notes |
|---|---|---|
| Model | DW-HF-60KW | High-frequency electromagnetic induction heating equipment |
| Input Power | 3 phases, 50–60Hz | Voltage should be confirmed according to local power supply |
| Maximum Oscillation Power | 60KVA | Suitable for medium-power industrial heating applications |
| Oscillation Frequency | 30–80kHz | Good for brazing, surface heating and small-to-medium part hardening |
| Maximum Input Power | 66KVA | Power supply capacity should be checked before installation |
| Cooling Water Pressure / Flow | Max 0.3MPa, ≥6L/min | Clean cooling water is required for continuous operation |
| Oscillating Current | 20–120A | Depends on load, coil and heating process |
| Duty Cycle | 100% at 30°C condition | Continuous working is allowed under proper cooling condition |
| Weight | Approx. 90kg | Industrial separated design |
| Main Unit Size | 650×285×610mm | Main power generator unit |
| Extension Unit Size | 510×285×430mm | Separated transformer / extension unit |
| Cable Length | 2m | Allows flexible workstation arrangement |
Recommended Applications and Model Selection
The DW-HF-60kW model is suitable when 35kW or 45kW equipment is not powerful enough for the workpiece size or required heating speed. It is a practical choice for larger brazing joints, faster production cycles, medium shaft and gear hardening, diamond tool brazing and small rod forging heating.
| Application | Material | Recommended Power | Frequency | DW-HF-60kW Suitability |
|---|---|---|---|---|
| Copper and Brass Tube Brazing | Copper / brass | 25–80kW | 30–100kHz | Very suitable for medium and larger joints |
| Diamond Tool Brazing | Diamond segment + steel body | 30–100kW | 20–100kHz | Very suitable for saw blades and core bits |
| Carbide Tool Brazing | Carbide + steel holder | 20–80kW | 20–100kHz | Very suitable |
| Gear and Shaft Hardening | 45 steel, 40Cr, 42CrMo, 4140 | 50–200kW | 10–80kHz | Suitable for small and medium parts |
| Stainless Steel Vessel Annealing | Stainless steel | 40–150kW | 10–80kHz | Suitable for localized annealing |
| Rod Heating for Forging | Steel, brass, copper alloy | 60–300kW | 5–50kHz | Suitable for small rods; larger billets need medium frequency systems |
| Metal Melting | Aluminum, copper, brass, steel | Depends on furnace capacity | Medium frequency preferred | Possible for small melting, but not ideal for production melting |
Engineering Selection Guide
To choose the DW-HF-60kW induction heating equipment correctly, buyers should evaluate more than machine power. Workpiece material, geometry, target temperature, cycle time, coil design and cooling capacity must be considered together.
| Selection Factor | Why It Matters | What Buyer Should Provide |
|---|---|---|
| Material | Different metals heat at different rates | Steel, copper, brass, stainless steel, carbide tool, diamond segment |
| Workpiece Size | Determines required power and coil geometry | Diameter, length, thickness, weight and heated area |
| Heating Objective | Different processes need different temperatures | Brazing, hardening, annealing, forging, shrink fitting |
| Target Temperature | Determines energy requirement and heating time | Brazing temperature, hardening temperature or forging temperature |
| Cycle Time | Determines whether 60kW is sufficient | Seconds per part or parts per hour |
| Coil Access | Determines coil type and fixture layout | Closed coil, split coil, U-shaped coil or custom coil |
| Cooling Water | Protects the coil and power supply | Flow rate, pressure, chiller capacity and water quality |
Process Workflow
- Confirm workpiece material, size, heating area and process target.
- Select suitable induction coil according to the geometry and heating zone.
- Connect clean cooling water and confirm water flow before starting the equipment.
- Connect three-phase power supply and confirm electrical safety.
- Place the workpiece inside or near the induction coil with proper coupling distance.
- Set heating power, time, frequency range and process mode.
- Start induction heating and monitor temperature or visual process condition.
- Apply brazing filler, quenching, cooling, forging transfer or assembly as required.
- Inspect joint strength, hardness, temperature record or dimensional result.
- Save process parameters for repeatable production.
Induction Coil Design
The induction coil determines heating efficiency, heating pattern and process repeatability. A 60kW induction heater can perform poorly if the coil is not matched to the workpiece. Coil design should be based on material, heating area, loading method, production rhythm and required temperature uniformity.
| Coil Type | Best Application | Design Notes |
|---|---|---|
| Single-turn coil | Ring heating, shrink fitting, large local heating | Strong localized heating and easy loading |
| Multi-turn coil | Brazing, annealing, small shaft heating | Improves heating length and uniformity |
| U-shaped coil | Partial heating and irregular parts | Useful when the workpiece cannot pass through a closed coil |
| Pancake coil | Cookware bottom brazing, flat surface heating | Suitable for discs, plates and flat heating zones |
| Tooth or profile coil | Gear, sprocket and special contour hardening | Requires custom design according to drawing |
| Split coil | Large assembled parts and maintenance heating | Allows coil installation without disassembling the workpiece |
Cooling Water Requirements
The DW-HF-60kW induction heating equipment requires stable cooling water for the power supply, extension transformer and induction coil. The existing specification requires cooling water pressure up to 0.3MPa and water flow of at least 6L/min. For continuous production, a closed-loop industrial chiller is recommended to maintain stable water temperature and prevent scale or blockage.
| Cooling Item | Recommendation | Reason |
|---|---|---|
| Water Flow | ≥6L/min | Ensures coil and power components are properly cooled |
| Water Pressure | ≤0.3MPa | Protects internal cooling channels |
| Water Quality | Clean, filtered, low-scale water | Reduces blockage and extends equipment life |
| Cooling Method | Closed-loop chiller or industrial cooling system | Recommended for continuous operation |
| Protection | Water flow and temperature monitoring | Prevents overheating and unexpected shutdown |
Common Problems and Solutions
| Problem | Possible Cause | Engineering Solution |
|---|---|---|
| Heating speed is still too slow | Coil gap too large, workpiece too large, poor coupling or wrong frequency | Optimize coil shape, reduce coil gap, increase turns or choose higher power equipment |
| Uneven heating | Workpiece not centered, coil field uneven, material thickness variation | Improve fixture, redesign coil and rotate the workpiece if needed |
| Brazed joint quality is unstable | Wrong filler, poor flux, incorrect clearance, insufficient heating or overheating | Control heating time, filler placement, joint clearance and temperature |
| Hardness is too low after hardening | Temperature too low, heating time too short or poor quenching | Increase power/time, optimize coil and improve quenching flow |
| Workpiece overheats or melts locally | Power too high, coil too close, heating time too long | Reduce power, increase coil gap or use timer control |
| Coil overheats | Insufficient cooling water, blocked cooling channel or overload | Check water flow, pressure, water quality and coil connections |
| Equipment alarms frequently | Water failure, phase failure, overload, poor load matching or unstable power | Check utilities, cooling system, coil matching and protection settings |
| Surface oxidation | Overheating or long exposure in air | Reduce heating time, use flux or protective atmosphere if needed |
DW-HF-60kW vs 35kW and 45kW Models
The 60kW model is recommended when the buyer needs faster heating, larger joint heating, bigger tool brazing or more production margin than 35kW or 45kW equipment can provide. However, the final choice should still be based on workpiece size, material, heating time and coil design.
| Model | Best Use | Typical Advantage | Selection Note |
|---|---|---|---|
| 35kW High Frequency Induction Heater | Small brazing, small hardening, light heating | Compact and economical | Best for small parts and lower heat load |
| 45kW High Frequency Induction Heater | Medium brazing, small gear hardening, shrink fitting | Balanced power and compact size | Good for workshop and production use |
| 60kW High Frequency Induction Heater | Larger brazing joints, diamond tool brazing, shaft/gear heating, rod preheating | Higher power and faster heating | Recommended when heating speed or workpiece size requires more margin |
Why Choose HLQ Induction Equipment?
HLQ Induction Equipment provides high-frequency, medium-frequency and customized induction heating systems for brazing, hardening, forging, melting, annealing, shrink fitting, preheating and special industrial heating applications. For the DW-HF-60kW model, HLQ can help users select the correct induction coil, process settings, fixture, cooling system and production configuration according to the actual workpiece and heating target.
| HLQ Capability | Customer Value |
|---|---|
| 60kW high-frequency induction heating equipment | Supports medium-power brazing, hardening, annealing and preheating applications |
| Customized induction coil design | Improves heating efficiency, uniformity and process repeatability |
| Application engineering support | Helps buyers select suitable power, frequency and heating parameters |
| Separated transformer design | Improves flexibility for production-line integration and harsh environments |
| OEM and project support | Supports factories, distributors and custom industrial heating projects |
FAQ
1. What is the DW-HF-60kW induction heating equipment used for?
It is used for induction brazing, diamond tool brazing, carbide tool brazing, gear and shaft heat treatment, surface hardening, quenching, stainless steel vessel annealing, rod forging heating, shrink fitting, tube heating and localized metal heating.
2. What frequency does the DW-HF-60kW induction heater use?
The DW-HF-60kW model operates in the 30–80kHz frequency range, making it suitable for high-frequency brazing, surface heating and small-to-medium part heat treatment applications.
3. What is the difference between electromagnetic and induction heating?
In this product context, electromagnetic induction heating and induction heating refer to the same heating principle. The equipment uses an alternating magnetic field to induce eddy currents in conductive metal parts, generating heat directly inside the workpiece.
4. Can this machine be used for copper and brass tube brazing?
Yes. The DW-HF-60kW model is suitable for copper and brass tube brazing, especially when the joint is larger or the required production cycle is faster than what smaller machines can handle.
5. Can it be used for diamond tool brazing?
Yes. The current page lists diamond tool brazing as one of the main applications. For diamond segment brazing, coil design, filler selection and heating temperature control are important for joint quality.
6. Can the DW-HF-60kW be used for gear and shaft hardening?
Yes. The current page lists heat treatment of gears and shafts and part quenching among its applications. It is suitable for small and medium gears or shafts. For large gears, deep case hardening or heavy shafts, a higher-power or lower-frequency hardening system may be recommended.
7. What cooling water is required?
The equipment requires cooling water pressure up to 0.3MPa and water flow of at least 6L/min. Clean water and a closed-loop chiller are recommended for continuous production.
8. Is this machine suitable for continuous operation?
Yes. The current specification lists 100% duty cycle at 30°C. Continuous operation requires stable input power, proper coil matching and sufficient cooling water.
9. Is the DW-HF-60kW suitable for metal melting?
The current page lists metal melting as an application. However, for industrial melting production, a dedicated medium-frequency induction melting furnace is usually more suitable because it provides better furnace structure, crucible design and molten metal handling.
10. What information is needed for a quotation?
Please provide the workpiece material, size, weight, heating area, target temperature, required heating time, production quantity, available voltage, cooling water condition and photos or drawings. This helps HLQ recommend the correct coil, process and machine configuration.
