Precision Temperature Control
50-segment PID auto-tuning controller with SCR phase-angle firing delivers ±1°C accuracy. Built-in overheating and thermocouple-break alarms ensure unattended safe operation around the clock.
- CE & ISO 9001 Certified
- Shipped to 40+ Countries
- In-House Manufacturing
- 24-Hour Technical Support
- Factory Acceptance Testing
Product Overview
What Is a Laboratory Crucible Furnace?
A laboratory crucible furnace is a vertical-loading, high-temperature electric furnace designed to heat materials contained within a crucible — a refractory vessel capable of withstanding extreme temperatures. Unlike box-type muffle furnaces, the crucible furnace places the sample inside a dedicated crucible, making it ideal for melting, sintering, and calcining tasks where direct contact between the sample and heating elements must be avoided.
Brother Furnace's crucible furnace features a unique dual-layer ceramic fiber insulation chamber built around a high-purity quartz crucible. The Fe-Cr-Al-Mo wire heating elements are embedded directly in the insulation for maximum heat transfer efficiency, achieving a maximum temperature of 1200°C with outstanding uniformity of ±1°C accuracy and ±5°C uniformity across the working zone.
With a 50-segment PID programmable controller, dual cooling fans, and optional vacuum or inert gas atmosphere support, this furnace is built for both routine laboratory work and demanding research applications.
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High-Purity Quartz Crucible
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Dual-Layer Ceramic Fiber Insulation
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50-Segment PID Auto Control
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Inert Gas / Vacuum Compatible
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Door-Open Power Cut-Off Safety
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Custom Chamber Sizes Available
Core Advantages
Why Our Crucible Furnace Stands Out
Every design decision is driven by performance, safety, and long-term reliability — so your research never stops.
Dual-Layer Ceramic Fiber Insulation
A 1430°C inner board and 1260°C outer board create a highly efficient thermal barrier, minimizing heat loss and reducing energy consumption while maintaining superior temperature uniformity.
High-Purity Quartz Crucible
The standard high-purity quartz crucible minimizes contamination risks. Optional graphite or alumina crucibles are available for metal melting or highly corrosive material processing.
Atmosphere & Vacuum Ready
The sealed chamber supports inert gas (Ar, N₂) flow-through and optional vacuum operation, enabling oxide-free sintering, annealing under controlled atmospheres, and high-purity material synthesis.
Multi-Layer Safety System
Integrated dual-circuit protection with over-temperature alarm, automatic power cut-off when the door opens, and double cooling fans keeping the outer shell below 60°C for operator safety.
Flexible Customization
Chamber sizes range from Ø40×300mm to Ø240×220mm and can be fully customized. Optional PC software control, touch screen controller, and tilting mechanism are available to match your workflow.
Industries & Use Cases
Where Crucible Furnaces Are Used
From university labs to industrial R&D centers, our crucible furnaces power critical processes across multiple disciplines.
01
Ceramics & Advanced Materials
Sintering ceramic components, calcining high-purity compounds, and developing new refractory materials under inert atmospheres.
02
Metallurgy & Metal Melting
Melting low-melting-point non-ferrous metals including aluminum, zinc, tin, and copper alloys for casting and alloy research.
03
Electronics & Semiconductors
Annealing electronic components, sintering electrode materials, and processing substrates requiring precise thermal profiles.
04
Chemical & Pharmaceutical
Roasting chemical samples, preparing glass fusion samples, and processing precious metal compounds for analytical purposes.
05
University & Research Labs
Supporting academic research in material science, chemistry, and engineering with reliable, reproducible thermal processing.
06
Refractory & Building Materials
Testing and developing anti-fire materials, construction ceramics, and insulation composites at controlled high temperatures.
07
Jewelry & Precious Metals
Glass fusion sample preparation and melting of precious metals such as gold, silver, and platinum in laboratory settings.
08
Quality Control & Testing
Ash content determination, loss on ignition (LOI) testing, and sample preparation for XRF and other analytical techniques.
Why Brother Furnace
A Furnace Manufacturer You Can Rely On
Brother Furnace is a professional manufacturer of laboratory and industrial electric furnaces with over a decade of engineering experience. We design, build, and test every furnace in-house — ensuring consistent quality from factory to lab bench.
1
Factory-Direct Pricing
No middlemen, no markups. You buy directly from the manufacturer, ensuring the best value for your budget without compromising on quality or after-sales support.
2
Full Customization Capability
From chamber dimensions to atmosphere systems, control interfaces, and power specifications — we engineer furnaces to your exact requirements, not the other way around.
3
Rigorous Quality Control
Every furnace undergoes full temperature profiling, safety system testing, and electrical inspection before shipment. CE certification is standard across our product range.
4
Lifetime Technical Support
Our engineering team provides lifetime support for all furnaces. Whether you need installation guidance, process optimization, or spare parts, we are always here.
10+
Years of Manufacturing Experience
80+
Countries Served Worldwide
5000+
Furnaces Delivered
98%
Customer Satisfaction Rate
CE Certified
ISO Quality System
RoHS Compliant
How to Order
From Inquiry to Delivery in 4 Steps
We make the procurement process straightforward and transparent, with dedicated support at every stage.
Submit Your Inquiry
Tell us your temperature range, chamber size, atmosphere requirements, and application. The more detail, the better we can assist.
Receive Custom Quote
Our engineers review your requirements and provide a detailed quotation with full specifications within 24 hours.
Manufacturing & QC
Your furnace is built to spec, fully tested for temperature performance and safety compliance, then documented with a test report.
Delivery & Support
Securely packaged and shipped worldwide with full documentation. Our team provides installation guidance and ongoing technical support.
FAQ
Frequently Asked Questions
Answers to the most common questions our customers ask before selecting and ordering a vacuum sintering furnace.
What is the maximum temperature of the Brother crucible furnace?
The maximum temperature is 1700°C, achievable within 2 hours. The recommended continuous working temperature is 1600°C for extended operation to preserve heating element longevity.
Can the crucible furnace operate under inert gas or vacuum atmosphere?
Yes. The standard furnace supports inert gas (argon, nitrogen) flow-through for atmosphere-controlled processing. Vacuum capability is available as an option, making it suitable for oxide-sensitive materials and high-purity synthesis.
What materials can be processed in this crucible furnace?
The furnace is suitable for ceramics, electronic components, chemical compounds, refractory materials, and low-melting-point metals including aluminum, zinc, tin, and copper. It supports sintering, annealing, roasting, calcining, and melting processes.
What crucible materials are available?
The standard crucible is high-purity quartz. Optional crucibles include graphite (for metal melting) and alumina (for high-purity or corrosive material processing). Please specify your application when requesting a quote so we can recommend the best option.
Can I control the furnace remotely via PC software?
Yes. Optional PC software control is available, allowing you to set, monitor, and log temperature programs from your computer. A touch screen controller upgrade is also available for a more intuitive interface.
Can the chamber size be customized?
Absolutely. While we offer six standard chamber sizes from Ø40×300mm to Ø240×220mm, all dimensions can be customized to suit your specific sample size or production volume requirements. Contact us with your dimensions for a tailored solution.
What warranty and after-sales support do you provide?
All crucible furnaces come with a 1-year limited warranty covering manufacturing defects, with lifetime technical support included. Consumable parts such as heating elements and crucibles are not covered under warranty but can be ordered as replacements at any time.
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