JLZ-70KW Induction Crucible Melting Furnace

JLZ-70KW Induction Crucible Melting Furnace

The JLZ-70KW Induction Melting Furnace is a high-performance, medium-frequency induction system engineered for efficient, controlled melting of ferrous and non-ferrous metals. Designed for foundries, metal workshops and precision casting operations, this 70 kW unit delivers rapid melt cycles, excellent temperature uniformity and repeatable metallurgical quality.

Performance Overview

The JLZ-70KW model provides reliable melting capacity for medium-scale production:

Melting speed

• Cold furnace: 50–60 minutes

• Hot furnace (subsequent melts): 20–30 minutes

The medium-frequency (1–20 kHz) induction field ensures deep heat penetration and uniform temperature distribution throughout the melt. Electromagnetic stirring improves alloy homogeneity and reduces localised overheating.

Key Technical Specifications

• Rated Power: 70 kW

• Input Power: 3-phase 380–440 V, 50/60 Hz

• Maximum Input Current: 105 A

• Output Voltage: 70–550 V

• Output Current: 20–130 A

• Oscillation Frequency: 1–20 kHz

• Duty Cycle: 100% at 40 °C

• Cooling Water Requirement: ≥ 0.2 MPa, ≥ 6 L/min

• Weight: 120 kg

• Control System: PLC-based digital control

System Configuration

The furnace is divided into two main assemblies:

1. Heating Power Cabinet
Digital PLC-controlled induction power supply providing precise power modulation, stable frequency control and integrated safety protection.

2. Tilting Furnace Body
Crucible-based induction coil assembly with mechanical tilting mechanism for controlled and safe metal pouring.

Core Advantages

• High Energy Efficiency: Induction heating transfers energy directly into the metal charge, reducing heat loss and operating costs.

• Uniform Metallurgy: Electromagnetic stirring enhances alloy consistency and melt quality.

• Fast Cycle Times: Reduced warm-up and high thermal efficiency improve throughput.

• Compact Footprint: Integrated design suitable for workshops with limited space.

• Low Noise & Low Maintenance: Solid-state electronics with minimal moving parts.

• High Safety Level: PLC monitoring, overload protection and water-flow interlocks.

• Continuous Operation: 100% duty cycle for sustained production environments.

Suitable Materials

The JLZ-70KW is designed for melting:

• Carbon and alloy steels

• Cast iron

• Copper and copper alloys (bronze, brass)

• Precious metals (gold, silver)

• Aluminium and aluminium alloys

• Stainless steel

• Magnesium and tin

Typical Applications

• Foundry operations

• Investment casting

• Jewellery and precious metal refining

• Tooling and die manufacturing

• Laboratory-scale metallurgical testing

• Recycling and remelting operations

What’s Included

• JLZ-70KW induction power unit

• Tilting furnace assembly

• PLC control system

• Cooling water interface

• Machinery test report

• Outgoing inspection report

• 1-year manufacturer warranty

The JLZ-70KW Induction Melting Furnace offers an optimal balance between capacity, energy efficiency and production speed, making it well suited to medium-scale industrial melting operations requiring precision, repeatability and operational safety.