Laboratory Clean-Type Vacuum Box Furnace

ZYLAB Clean-Type Vacuum Box Furnace

Introduction

The ZYLAB Clean-Type Vacuum Box Furnace is designed for high-precision heat treatment processes requiring clean environments and uniform temperature control. The system uses ring-shaped heating elements to heat the high-purity quartz vacuum chamber evenly from the outside, ensuring high thermal efficiency, rapid heating, and excellent temperature uniformity.

The furnace provides a clean and stable working atmosphere through a forward–rear circulating gas flow design. All sealing parts are made of high-temperature-resistant O-rings, supported by a water-cooled stainless steel sealing system for enhanced safety and reliability.

With a fully automated touchscreen control system, the furnace offers easy operation and includes comprehensive safety functions, such as over-temperature protection, thermocouple break detection, and low water-pressure alarms.

Key Features

• Dual-layer insulation structure with air-cooled interlayer – minimizes external temperature rise and improves operational safety.

• High-purity Al₂O₃ fiber insulation – provides excellent thermal stability and maximum energy efficiency.

• Refractory chamber coated with high-purity alumina – extends service life and maintains a clean internal environment.

• High-purity quartz chamber plug – enables customized temperature gradients inside the chamber.

• Comprehensive protection system – includes over-temperature, thermocouple failure, and cooling-water interruption protection for safe operation.

• Interchangeable thermocouple port and observation window – flexible configuration for experimental needs.

Technical Specifications of Clean-Type Vacuum Box Furnace

Model	VAH1200-20
Working Voltage	AC 208-240V 50/60 Hz (as required)
Power	4KW
Max.temperature	1200.C
Working Temperature	＜1150.C
Heating Rate	≤20.C/min(advice:10.C/min)
Heating zone size（mm）	Φ190*200mm
Vacuum Degree	≤10Pa
Operating Interface	English Graphical Interface
Heating Element	Top quality resistance wire
Control System		Supports storage of up to 15 temperature programs, avoiding repeated setup for different experimental procedures. Provides an intuitive and visual operation experience for easier experiment monitoring. Features an embedded bilingual (Chinese/English) graphical interface with a 7-inch full-color touchscreen and intelligent human–machine interaction; includes non-linear temperature correction for improved accuracy. Equipped with multiple safety protections, including over-temperature alarm, thermocouple break detection, cooling water failure warning, and leakage protection.
Gas Supply System		Utilizes a mechanical pressure gauge with a gas-tight enclosure to effectively protect internal components from environmental effects and contamination. The housing offers excellent corrosion and high-temperature resistance for reliable operation.
Pressure Measurement and Monitoring		Equipped with an integrated float-type flowmeter to precisely control gas flow rate. Each unit undergoes leak-tightness testing before delivery to ensure stable and safe gas supply performance.
Temperature Accuracy	+/- 1.C
Thermocouple	K Type
Certification	ISO
Dimension	780(W) * 580(H) * 600(D)mm
Weight	60kgs
Standard Accessories	Quartz Tube, Vacuum Flange, Tube Block, O-ring, Protective Gloves, Crucible Hook, Manual Book
Warranty	18 months(not including consumable parts, such as quartz tube, heating elements, thermocouple, etc), lifetime support.

Schematic Diagram of Gas Flow in the Clean-Type Vacuum Box Furnace

Applications

• Advanced materials research – thermal treatment of ceramics, composites, and functional materials.

• Semiconductor and electronics industry – vacuum annealing, degassing, and oxidation-reduction experiments in a clean environment.

• Metal and alloy heat treatment – vacuum brazing, annealing, and sintering of small precision components.

• Ceramic and glass processing – high-purity firing and densification in low-contamination conditions.

• Thin film and coating studies – heat treatment of substrates and coatings for enhanced adhesion and uniformity.

• Cleanroom laboratories – suitable for cleanroom-compatible operations requiring minimal contamination and stable temperature control.

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