High-Frequency Induction Heating Welding Machine LH-40KW

40KW induction heating for fast, contactless brazing and welding with 24-hour continuous operation.

Industrial induction heating system for contactless brazing, carbide tipping, and precision joining operations. Engineered for manufacturers requiring consistent heating quality and zero-downtime production with premium Siemens power components and comprehensive fault monitoring.

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Key Specs

Key Specs

Power

40KW

Weight

Main Unit: 35KGSub-unit: 20KG

Dimension

Main unit: 575*285*470mmSub-unit: 430*255*320mm

Voltage

Three-phase 380V 50-60HZ

Overview Points

Contactless Heating Technology

30-80 kHz induction system heats metal without contact for brazing, carbide tipping operations

Split Design Portability

Two-unit design: 35kg main unit, 20kg sub-unit with handles for workstation mobility

Premium Component Sourcing

Siemens power components, Motorola diodes, Fairchild ICs ensure reliable industrial performance

Consistent Process Control

Constant power/frequency control maintains heating quality, reduces rejects in volume production

Continuous Operation Capability

100% duty cycle supports 24-hour production without derating or thermal shutdown

Ten-Point Fault Protection

Real-time monitoring of overcurrent, overvoltage, water level prevents equipment damage

Optimized Internal Design

Imported insulation, T2 copper tubing maximize water circulation and energy transfer efficiency

Complete Production Package

Includes two custom induction coils and 2P chiller unit for immediate operation setup

Key Features

The LH-40KW maintains constant power and oscillation frequency across a 30–80 kHz range, ensuring repeatable heat input on every cycle. This stability directly reduces brazing defects and improves joint integrity in copper tubing, carbide tools, and metal fittings.

All primary power components are Siemens-sourced, supported by Motorola, Fairchild, and ST semiconductor components. The machine achieves 100% load capacity for uninterrupted 24-hour operation — built for factories that cannot afford downtime between shifts.

An integrated alarm and diagnostics system monitors overcurrent, overvoltage, low water level, and seven additional fault conditions in real time. Operators receive immediate visual alerts, preventing equipment damage and reducing unplanned maintenance costs.

The split design separates the 35 kg main unit from the 20 kg sub-unit, each with its own carrying handles. This allows operators to move the system between production areas without cranes or forklifts, making it practical for workshops handling varied workpiece sizes.

The sub-unit uses T2 custom-grade copper tubing and imported insulation materials to maintain clear water flow paths at 0.15–0.25 MPa. This design eliminates internal water blockages, extends equipment life, and delivers higher output power per kilowatt of input energy.

Technical Specifications

III Main Technical Data

Parameter

Data

1

Model

LH-40KW

2

Input Power

40KW

3

Oscillation Frequency

30-80kHZ

4

Input Voltage

Three-phase 380V 50-60HZ

5

Cooling Water Temperature

Clean water 25-40°C

6

Cooling Water Pressure

0.15-0.25MPa

7

Dimension

Main unit: 575*285*470mm

Sub-unit: 430*255*320mm

8

Weight

Main Unit: 35KG

Sub-unit: 20KG

IV Best Offer

Price Basis: FOB Shanghai, China.

Payment term: 50% deposit by T/T, the balance by T/T after inspection before shipment.

Delivery time: 15 working days after receiving deposit

Component

Specification

Quantity

High-frequency induction heating welding machine

LH-40KW

1 unit

Induction coil

Customized

2 unit

Chiller

2P

1 unit

Applications

Brazing copper tubes and fittings in HVAC and refrigeration manufacturing

Carbide tool tip brazing for cutting and machining tools

Heat treatment processes — hardening, annealing, and tempering of small metal parts

Shrink fitting of gears, bearings, and motor components

Preheating metal assemblies before arc or flame welding

Melting and hot forming of small metal workpieces in precision fabrication

Video

FAQ

The key specifications of High-Frequency Induction Heating Welding Machine LH-40KW include: Power: 40KW, Weight: Main Unit: 35KGSub-unit: 20KG, Dimension: Main unit: 575*285*470mmSub-unit: 430*255*320mm, Voltage: Three-phase 380V 50-60HZ. Contact us for the full specification sheet.

High-Frequency Induction Heating Welding Machine LH-40KW is widely used in: Brazing copper tubes and fittings in HVAC and refrigeration manufacturing; Carbide tool tip brazing for cutting and machining tools; Heat treatment processes — hardening, annealing, and tempering of small metal parts; Shrink fitting of gears, bearings, and motor components.

All NTBOBO machines come with a 1-year warranty from the date of Bill of Lading. Our engineering team provides 24-hour technical support throughout the warranty period.

We accept 30% down payment by T/T (Telegraphic Transfer), with the balance due before shipment. Other payment arrangements can be discussed for long-term partners.

Standard delivery is within 10-35 working days after receiving the down payment, depending on the machine model and customization requirements.

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We take every question and need of yours seriously. Feel free to contact us!

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