Induction Heating Power Supplies

Brand: HLQ

Description

Induction Heating Power Supplies Manufacturer | MF HF UHF SRF KGPS Induction Generators

HLQ induction heating power supplies cover a complete range of industrial induction generators, including MF medium frequency series, HF high frequency series, UHF ultra high frequency series, SRF superaudio frequency series and KGPS induction generator series. These power supplies are designed for brazing, hardening, forging, melting, annealing, shrink fitting, bonding, soldering, welding preheating and industrial heat treatment. With available frequency ranges from low kHz to MHz level and power ratings from compact precision units to heavy-duty furnace generators, HLQ provides suitable induction power solutions for small parts, medium components, large billets, melting furnaces and automated production lines.

Quick Answer

An induction heating power supply is the core generator of an induction heating system. It converts industrial AC electricity into controlled medium-frequency power supplies, high-frequency, ultra-high-frequency, superaudio-frequency or KGPS furnace power output. This output energizes an induction coil, creates an alternating magnetic field and generates heat directly inside conductive metal workpieces. HLQ supplies MF, HF, UHF, SRF and KGPS induction heating power supplies for different heating depths, workpiece sizes, production speeds and industrial applications.

Product Series Overview

Series	Full Name	Typical Frequency Range	Typical Power Range	Best-Fit Applications	Main Advantage
MF Series	Medium Frequency Induction Power Supply	0.2kHz–20kHz	15kW–2000kW	Billet heating, forging, melting, deep hardening, bar heating, rod heating.	Deep heat penetration and strong through-heating capability.
HF Series	High Frequency Induction Heating Power Supply	30kHz–80kHz	15kW–600kW	Brazing, soldering, surface hardening, annealing, shrink fitting, tool brazing.	Fast localized heating with good process flexibility.
UHF Series	Ultra High Frequency Induction Power Supply	50kHz–2.0MHz	4.5kW–600kW	Precision brazing, micro soldering, fine parts heating, electronic components.	Very shallow, accurate and fast localized heating.
SRF Series	Superaudio Frequency Induction Heating System	20kHz–50kHz	30kW–2000kW	Billet heating, auto parts heat treatment, medium-depth hardening, forging preheating.	Balanced heating depth between MF and HF, suitable for many heat treatment processes.
KGPS Series	KGPS Induction Generator Power Supply	Medium frequency furnace range, customizable by furnace design	Usually medium to high power, customizable	Induction melting furnace, forging furnace, industrial heating furnace, metal smelting.	Traditional robust furnace power supply for melting and heavy heating applications.

What Is an Induction Heating Power Supply?

An induction heating power supply, also called an induction generator, induction inverter, induction power source or induction heating generator, is the electrical core of an induction heating machine. It converts input power into a controlled alternating current with a selected frequency. The current flows through a copper induction coil and produces a magnetic field. When a metal workpiece is placed inside or near the coil, eddy currents are induced inside the metal and generate heat directly within the workpiece.

The correct power supply series determines heating speed, heating depth, temperature uniformity, power efficiency, coil matching and production stability. For example, a small copper tube brazing job may require a HF or UHF generator, while a steel billet forging line may require an MF or SRF generator. A large induction melting furnace may require a KGPS or high-power MF furnace generator.

Why HLQ Offers Five Induction Power Supply Series

Buyer Requirement	Suitable Series	Reason
Deep heating for large steel bars or billets	MF / SRF / KGPS	Lower and medium frequency ranges provide better penetration for large cross-sections.
Surface hardening of shafts, gears and mechanical parts	HF / SRF / MF	Frequency can be selected according to required hardening depth.
Copper tube, brass fitting or carbide tool brazing	HF / UHF	High frequency gives fast localized heating around the joint area.
Precision heating of small metal parts	UHF	Ultra high frequency offers shallow heating and accurate thermal control.
Induction melting furnace	KGPS / MF	Melting applications need strong furnace power, stable output and continuous duty.
Automated billet heating or auto parts heat treatment	SRF / MF / HF	SRF provides a practical middle-frequency range for many industrial heat treatment systems.

Working Principle

Step	Process	Engineering Explanation
1	Industrial power input	The system receives factory electricity such as single-phase 220V or three-phase 380V, depending on model and power rating.
2	Power conversion	The power supply converts incoming AC power into controlled medium-frequency, high-frequency or furnace-frequency output.
3	Resonant output	The inverter, capacitors and transformer form a resonant circuit to deliver high-current energy to the induction coil.
4	Coil excitation	The induction coil receives alternating current and generates a rapidly changing magnetic field.
5	Eddy current generation	Conductive metal workpieces generate eddy currents inside the heating zone.
6	Heat generation	Electrical resistance and, in magnetic materials, hysteresis effect generate heat directly inside the metal.
7	Process control	Power, frequency, time, coil shape, cooling and optional temperature feedback determine the final heating result.

MF Medium Frequency Induction Power Supply

MF medium frequency induction power supplies are designed for deeper heat penetration and larger thermal loads. They are suitable for billet forging, bar heating, rod heating, induction melting, large shaft heating and deep heat treatment. The MF series is commonly selected when the workpiece is large, the required heating depth is high, or the process requires strong through-heating.

Model	Input Power	Max Input Current	Frequency Range	Input Voltage	Duty Cycle	Recommended Applications
DW-MF-15	15kW	23A	1kHz–20kHz	3-phase 380V ±10%	100%	Small forging, preheating, small furnace heating.
DW-MF-25	25kW	36A	1kHz–20kHz	3-phase 380V ±10%	100%	Small bar heating, small melting furnace, preheating.
DW-MF-35	35kW	51A	1kHz–20kHz	3-phase 380V ±10%	100%	Rod heating, forging preparation, medium workpiece heating.
DW-MF-45	45kW	68A	1kHz–20kHz	3-phase 380V ±10%	100%	Billet preheating, forging, medium melting.
DW-MF-70	70kW	105A	1kHz–20kHz	3-phase 380V ±10%	100%	Steel bar forging, copper billet heating, aluminum billet heating.
DW-MF-90	90kW	135A	1kHz–20kHz	3-phase 380V ±10%	100%	Medium forging line, larger rod heating, induction melting.
DW-MF-110	110kW	170A	1kHz–20kHz	3-phase 380V ±10%	100%	Deep hardening, heavy forging, medium melting furnace.
DW-MF-160	160kW	240A	1kHz–20kHz	3-phase 380V ±10%	100%	Large billet heating, high-output heating, large shaft heating.
DW-MF-300	300kW	400A	1kHz–20kHz	3-phase 380V ±10%	100%	Heavy-duty forging, large melting, continuous industrial production.

HF High Frequency Induction Heating Power Supply

HF high frequency induction heating power supplies are mainly used for fast localized heating. They are suitable for brazing, soldering, surface hardening, annealing, shrink fitting, carbide tool brazing, copper pipe brazing and stainless steel fitting heating. HF systems are flexible and widely used in manual workstations, semi-automatic heating stations and automated production lines.

Model	Rated Power	Frequency Range	Typical Heating Depth	Recommended Applications	Best-Fit Workpieces
DW-HF-15	15kVA	30kHz–100kHz	Shallow to medium surface heating	Small brazing, soldering, small part heating.	Copper joints, small tools, small rings.
DW-HF-25	25kVA	30kHz–80kHz	Localized heating	Copper tube brazing, tool brazing, small shaft hardening.	HVAC fittings, carbide tools, small shafts.
DW-HF-35	35kVA	30kHz–80kHz	Localized to medium heating	Medium brazing, annealing, surface hardening.	Gears, fittings, mechanical parts.
DW-HF-45	45kVA	30kHz–80kHz	Medium surface heating	Shrink fitting, pipe joint brazing, gear heating.	Rings, bearings, pipe joints, gears.
DW-HF-60	60kVA	30kHz–80kHz	Medium heating depth	Automotive parts hardening, medium brazing, bearing heating.	Shafts, gears, bushings, bearings.
DW-HF-80 to DW-HF-160	80kVA–160kVA	30kHz–80kHz	Medium to deeper localized heating	Large brazing, surface hardening, heat treatment lines.	Large gears, shafts, tooling, production-line components.

UHF Ultra High Frequency Induction Power Supply

UHF ultra high frequency induction power supplies are used for very small components, shallow heating, precision brazing, micro soldering, connectors, terminals, fine wires and localized heating processes where thermal influence must be minimized. UHF systems are suitable for high-precision applications that require fast response and concentrated heat input.

Model	Rated Power	Frequency Range	Input Voltage	Recommended Applications	Engineering Notes
DW-UHF-4.5	4.5kW	1.1MHz–2.0MHz	Single-phase 220V ±10%	Micro soldering, fine connector heating, small component heating.	Very shallow heating zone and fast response.
DW-UHF-6.0	6.0kW	1.1MHz–2.0MHz	Single-phase 220V ±10%	Precision soldering, small metal parts, electronic terminals.	Suitable for very small workpieces.
DW-UHF-10	10kW	100kHz–500kHz	3-phase 380V ±10%	Precision brazing, small shaft heating, fine surface heating.	Good for small but slightly larger parts than MHz units.
DW-UHF-20	20kW	50kHz–250kHz	3-phase 380V ±10%	Small tool brazing, thin-wall components, localized heating.	Balances precision heating and higher output power.
DW-UHF-30 to DW-UHF-60	30kW–60kW	50kHz–200kHz / 50kHz–150kHz	3-phase 380V ±10%	Automated precision brazing, small part hardening, localized heat treatment.	Suitable for higher-output precision heating stations.

SRF Superaudio Frequency Induction Heating System

The SRF power supplies series fills the application range between typical medium frequency and high frequency induction heating. It is especially useful for billet heating, auto parts heat treatment, medium-depth hardening, forging preheating and industrial heating applications where both heating speed and reasonable penetration depth are required. The DW-SRF series uses IGBT series resonant design and can support remote control interfaces such as 0–10V, 4–20mA, RS485 and RS232 according to application requirements.

SRF Series Feature	Specification / Description	Application Value
Power Range	30kW–2000kW	Suitable for medium and heavy industrial heating applications.
Frequency Range	20kHz–50kHz	Provides a balanced heating depth between MF and HF.
Control System	Digital design control system	Displays working voltage, current, frequency and fault indication.
Inverter Technology	IGBT series resonant design	Improves reliability and heating efficiency.
Remote Control	0–10V / 4–20mA power control, RS485 and RS232 options	Easy to connect with external automation systems.
Duty Cycle	100%	Suitable for continuous industrial production.
Typical Applications	Billet heating, auto parts heat treatment, medium-depth hardening	Useful for production lines requiring repeatable heating quality.

SRF Model Selection Table

Model	Max Output Power	Frequency	Max Input Current	Input Voltage	Duty Cycle	Water Flow
DW-SRF-30A	30kW	20kHz–50kHz	48A	3-phase 380V, 50Hz/60Hz	100%	15L/min at 0.2MPa
DW-SRF-30ABS	30kW	20kHz–50kHz	48A	3-phase 380V, 50Hz/60Hz	100%	15L/min at 0.2MPa
DW-SRF-40ABS	40kW	20kHz–50kHz	62A	3-phase 380V, 50Hz/60Hz	100%	32L/min at 0.2MPa
DW-SRF-50ABS	50kW	20kHz–50kHz	75A	3-phase 380V, 50Hz/60Hz	100%	32L/min at 0.2MPa
DW-SRF-40AB	40kW	20kHz–50kHz	62A	3-phase 380V, 50Hz/60Hz	100%	32L/min at 0.2MPa
DW-SRF-50AB	50kW	20kHz–50kHz	75A	3-phase 380V, 50Hz/60Hz	100%	32L/min at 0.2MPa
DW-SRF-60AB	60kW	20kHz–50kHz	90A	3-phase 380V, 50Hz/60Hz	100%	40L/min at 0.2MPa
High-power SRF models	80kW–300kW	20kHz–50kHz	According to model	3-phase 380V, customizable	100%	According to model and transformer configuration

KGPS Induction Generator Power Supply

KGPS induction generator power supplies are widely used for induction melting furnaces, forging furnaces and other heavy-duty thermal equipment. Compared with compact IGBT high-frequency machines, KGPS systems are usually selected for furnace-type applications requiring stable medium-frequency output, large current, strong furnace load capacity and continuous metal heating or melting.

KGPS series is especially suitable for foundries, metal recycling plants, forging workshops, steel processing plants and non-ferrous metal melting applications. It can be configured with induction melting furnaces, industrial forging furnaces, furnace transformers, capacitor banks, water cooling systems and furnace bodies according to metal type, furnace capacity and production output.

KGPS Feature	Description	Typical Buyer Benefit
Main Application	Induction melting furnace, forging furnace and heavy industrial heating furnace.	Suitable for high thermal load and continuous furnace operation.
Power Range	Customizable according to furnace capacity and production output.	Can be matched with different melting capacities and furnace sizes.
Frequency Type	Medium frequency furnace power output.	Good for metal melting, smelting, holding and large workpiece heating.
Typical Furnace Types	Steel shell furnace, aluminum shell furnace, tilting furnace and forging furnace.	Can be configured for different workshop layouts.
Suitable Metals	Steel, iron, copper, brass, aluminum, zinc, tin, precious metals and alloy materials.	Supports both ferrous and non-ferrous metal processing.
System Configuration	Power cabinet, capacitor bank, furnace body, water cooling system and control cabinet.	Provides a complete furnace power solution instead of only a small heater.
Best Use Case	Melting, smelting, casting preparation, forging preheating and large-scale thermal processing.	Ideal for foundry and heavy manufacturing applications.

MF vs HF vs UHF vs SRF vs KGPS

Comparison Item	MF Series	HF Series	UHF Series	SRF Series	KGPS Series
Heating Depth	Deep	Shallow to medium	Very shallow	Medium to deep	Deep furnace heating
Heating Speed	Medium to fast	Fast	Very fast	Fast	Depends on furnace load
Workpiece Size	Medium to large	Small to medium	Very small to small	Medium to large	Large furnace charge or large workpieces
Typical Power Level	15kW–2000kW	15kW–600kW	4.5kW–600kW	30kW–2000kW	Customizable medium to high power
Typical Frequency	1kHz–20kHz	30kHz–80kHz	50kHz–2.0MHz	20kHz–50kHz	Medium frequency furnace range
Best Application	Forging, melting, deep hardening	Brazing, hardening, shrink fitting	Precision brazing and micro heating	Billet heating and auto parts heat treatment	Melting furnace and forging furnace
Typical Customer	Forging plant, heat treatment plant, melting workshop	Brazing workshop, machinery factory, tool manufacturer	Electronics, precision components, small parts production	Automotive parts and billet heating lines	Foundry, metal recycling plant, smelting workshop

Application Matching Guide

Application	Recommended Series	Typical Material	Suggested Power Range	Engineering Notes
Copper tube brazing	HF / UHF	Copper, brass, stainless steel	15kW–300kW	Use a focused coil to heat the joint quickly and improve filler flow.
Carbide tool brazing	HF	Carbide, steel, diamond segment	15kW–600kW	Localized heating protects the tool body and improves joint quality.
Small connector soldering	UHF	Fine metal terminals, connectors	4.5kW–60kW	UHF minimizes thermal influence on nearby areas.
Shaft hardening	HF / SRF / MF	Carbon steel, alloy steel	45kW–600kW	Select frequency according to required hardening depth.
Gear tooth hardening	HF / SRF	Carbon steel, alloy steel	60kW–600kW	Coil design and quench spray determine final hardness profile.
Steel billet forging	MF / SRF	Carbon steel, alloy steel	70kW–2000kW	Medium and superaudio frequency provide better penetration for billet heating.
Aluminum billet heating	MF / SRF	Aluminum alloy	70kW–500kW	Requires optimized coil coupling due to high thermal conductivity.
Induction melting furnace	KGPS / MF	Aluminum, copper, brass, steel, iron	Customizable	Power depends on furnace capacity, metal type and melting time.
Shrink fitting	HF / MF / SRF	Bearings, rings, gears, sleeves	25kW–300kW	Uniform heating expands the outer part for thermal assembly.
Annealing	HF / MF / SRF	Copper, stainless steel, carbon steel	25kW–500kW	Temperature uniformity and part movement are important.

Frequency Selection Guide

Frequency Range	Related Series	Heating Characteristic	Suitable Workpiece	Typical Process
Low kHz range	MF / KGPS	Deep heating and strong through-heating.	Large billets, melting charge, thick bars, large shafts.	Melting, forging, deep hardening, furnace heating.
20kHz–50kHz	SRF	Balanced penetration and fast heating response.	Medium billets, shafts, automotive components.	Billet heating, auto parts heat treatment, medium hardening.
30kHz–80kHz	HF	Fast localized heating and medium surface depth.	Joints, fittings, gears, shafts, tools.	Brazing, hardening, annealing, shrink fitting.
50kHz–500kHz	UHF	Shallow heating and fast thermal response.	Small parts, thin-wall parts, precision assemblies.	Precision brazing, small part hardening, soldering.
MHz level	UHF	Very shallow and highly localized heating.	Fine components, terminals, micro parts.	Micro soldering and fine localized heating.

Material Compatibility

Material	Heating Performance	Recommended Series	Typical Applications	Engineering Notes
Carbon steel	Excellent	MF / HF / SRF / KGPS	Forging, hardening, melting, shrink fitting, heat treatment.	Magnetic steel heats efficiently below Curie temperature.
Alloy steel	Excellent	MF / HF / SRF / KGPS	Shaft hardening, gear hardening, billet heating, tooling.	Frequency should match required hardening depth.
Stainless steel	Good	HF / MF / SRF	Brazing, annealing, pipe heating, fitting heating.	Heating speed depends on grade and magnetic properties.
Copper	Good but needs strong coupling	HF / MF / KGPS	Brazing, annealing, melting, electrical parts heating.	High conductivity requires optimized coil design and sufficient power.
Brass	Good	HF / MF / KGPS	Brazing, forging, annealing, melting.	Temperature control helps reduce overheating and oxidation.
Aluminum	Moderate to good	MF / SRF / KGPS	Billet heating, melting, shrink fitting.	High conductivity and thermal conductivity require stronger power density.
Carbide	Good for assembly heating	HF / UHF	Carbide tool brazing, diamond tool brazing.	Control temperature carefully to protect carbide and filler alloy.

How to Choose the Right Induction Heating Power Supply

Selection Factor	What to Confirm	Recommended Series	Engineering Recommendation
Workpiece size	Diameter, length, wall thickness, weight and heating area.	UHF for small parts, HF for medium parts, MF/SRF/KGPS for large parts.	Larger parts usually require lower frequency and higher power.
Heating depth	Surface heating, medium-depth heating or through heating.	UHF/HF for shallow heating, SRF for medium depth, MF/KGPS for deep heating.	Frequency is one of the most important factors affecting heating depth.
Target temperature	Brazing temperature, forging temperature, melting temperature or hardening temperature.	Depends on process.	Power should include margin for heat loss and continuous production.
Heating time	Required cycle time per piece or melting time per batch.	Higher power for shorter heating time.	Shorter cycle time requires higher power density and optimized coil design.
Production mode	Manual, semi-automatic, automatic or furnace production.	HF/UHF for workstations, MF/SRF for lines, KGPS for furnaces.	Automation may require PLC, remote control and temperature feedback.
Cooling condition	Water flow, pressure, temperature and water quality.	All industrial series require proper cooling.	Cooling system capacity directly affects reliability and duty cycle.

Common Problems and Engineering Solutions

Problem	Possible Cause	Recommended Solution	Related Series
Heating speed is too slow	Power is too low, coil coupling is poor, frequency is not suitable or heat loss is high.	Increase power, redesign coil, reduce coil gap or improve insulation.	MF / HF / UHF / SRF / KGPS
Heating depth is too shallow	Frequency is too high or heating time is too short.	Select lower frequency, increase heating time or change to MF/SRF/KGPS.	HF / UHF / SRF / MF
Surface overheats but core is cold	Frequency is too high for the workpiece size.	Use SRF, MF or KGPS depending on application and workpiece section.	HF / UHF to MF / SRF / KGPS
Brazing joint quality is unstable	Temperature fluctuation, poor filler placement or inconsistent positioning.	Use fixture positioning, temperature control and optimized coil geometry.	HF / UHF
Hardening depth is incorrect	Frequency, power, scan speed or quench design is not matched.	Adjust frequency, heating time, scanning speed and quench spray pattern.	HF / SRF / MF
Melting time is too long	Power supply capacity is insufficient or furnace matching is poor.	Select higher-power KGPS/MF system, optimize furnace size and improve insulation.	KGPS / MF
Coil overheats	Insufficient cooling water or high current density.	Increase water flow, clean coil channels or redesign copper tube size.	All series
Machine alarm occurs	Cooling issue, overload, voltage fluctuation or load mismatch.	Check cooling water, input power, matching transformer and coil connection.	All series

Typical System Configuration

Component	Function	Used In	Selection Notes
Induction power supply	Converts input power into induction heating output.	MF / HF / UHF / SRF / KGPS	Select by power, frequency, load type and duty cycle.
Matching transformer	Matches power supply output with coil or furnace load.	MF / HF / UHF / SRF	Important for stable operation and efficient energy transfer.
Capacitor bank	Forms resonant circuit and compensates reactive power.	MF / SRF / KGPS	Especially important for furnace-type high-power systems.
Induction coil	Generates magnetic field around workpiece.	MF / HF / UHF / SRF	Must match workpiece shape and heating zone.
Furnace body	Contains metal charge for melting or smelting.	KGPS / MF	Select steel shell, aluminum shell or tilting furnace according to application.
Water cooling system	Cools power modules, transformer, coil and cables.	All series	Cooling capacity affects duty cycle and machine life.
Fixture or automation system	Positions workpiece and controls production cycle.	HF / UHF / SRF / MF	Recommended for repeatable production quality.
Temperature control	Measures and controls heating temperature.	All series	Pyrometer, thermocouple or PLC feedback can improve consistency.

Why Choose HLQ Induction Heating Power Supplies?

Advantage	What HLQ Provides	Customer Value
Full series coverage	MF, HF, UHF, SRF and KGPS induction power supplies.	Customers can choose the correct series for different heating depths and applications.
Wide application range	Brazing, hardening, forging, melting, annealing, shrink fitting and heat treatment.	One supplier can support multiple factory heating processes.
Engineering selection support	Power, frequency, coil, transformer and cooling system recommendations.	Reduces wrong model selection and improves project success rate.
Customized coil and furnace matching	Coils, fixtures, transformers and furnace systems can be matched to the workpiece.	Improves heating uniformity, speed and production repeatability.
Industrial continuous operation	Many models support 100% duty cycle with proper cooling.	Suitable for production lines and long working shifts.
Automation compatibility	Remote control, PLC interface and temperature feedback can be configured.	Useful for automated heating lines and repeatable quality control.

Quotation Information Required

Information Required	Why It Matters	Example
Workpiece material	Different metals absorb induction energy differently.	Carbon steel, stainless steel, copper, brass, aluminum.
Workpiece size and weight	Determines required power and coil size.	Diameter, length, wall thickness and weight.
Heating process	Different processes need different series.	Brazing, hardening, forging, melting, annealing, shrink fitting.
Target temperature	Determines energy requirement and heating time.	750°C brazing, 850°C hardening, 1150°C forging, melting temperature.
Required heating time	Shorter cycle time needs higher power density.	5 seconds, 30 seconds, 3 minutes, 1 hour per batch.
Heating depth	Determines frequency selection.	Surface heating, 2mm hardening depth, full through-heating.
Production capacity	Determines power supply size and automation level.	Pieces/hour, kg/hour, tons/day.
Factory input voltage	Ensures correct electrical configuration.	220V single phase, 380V three phase, 415V, 440V, 480V.
Cooling water condition	Determines cooling system design.	Water flow, pressure, inlet temperature and water quality.

Frequently Asked Questions

Q: What series of induction heating power supplies does HLQ provide?
A: HLQ provides MF medium frequency, HF high frequency, UHF ultra high frequency, SRF superaudio frequency and KGPS induction generator power supplies.

Q: What is the difference between MF and HF induction power supplies?
A: Medium Frequency (MF) units operate at 1–20KHz and are designed for deep, through-heating of large workpieces like billets and bars. High Frequency (HF) units operate at 20–100KHz and are optimized for surface heating, brazing, and shallow case hardening.

Q: Can your induction power supplies replace existing SCR machines?
A: Yes. Our IGBT-based units are direct drop-in replacements for SCR-controlled induction generators, offering the same or higher power output in 1/10 the physical footprint with significantly lower energy consumption.

Q: Do you offer custom frequency or power configurations?
A: Yes. HLQ offers OEM and custom-specification units. Contact our engineering team with your workpiece dimensions, material, and target temperature for a tailored recommendation.

Q: What input voltage is required?
A: Most units in the MF and HF series require 3-phase 380V ±10%. The DW-HF-15KW and UHF-4.5/6.0KW models operate on single-phase 220V.

Q: What warranty and after-sales support do you provide?
A: All HLQ induction power supplies come with a 12-month warranty. We provide remote technical support, spare IGBT modules, and on-site service for large installations.

Q: Which series is best for steel billet forging?
A: MF or SRF series is generally suitable for steel billet forging because they provide stronger penetration and enough thermal energy for larger cross-sections.