Thermconcept MoSi2 High-Temperature Tube Furnace (Germany-Made)

Overview

The Thermconcept MoSi2 High-Temperature Tube Furnace is an engineered solution for precise, stable, and repeatable thermal processing in research laboratories and industrial R&D environments. Designed and manufactured in Bremen, Germany, this furnace employs molybdenum disilicide (MoSi₂) heating elements—known for exceptional oxidation resistance and structural stability up to 1800 °C in air—mounted parallel to the process tube axis to ensure uniform radial heat distribution and minimized thermal gradients. Its core architecture integrates a dual-wall stainless steel enclosure with rear-mounted forced-air ventilation, maintaining external surface temperatures below 60 °C even at maximum operating conditions. The furnace utilizes vacuum-formed, low-density alumina-silica fiber insulation, delivering high thermal mass retention while minimizing conductive and convective losses—critical for energy efficiency and thermal inertia control during ramp-hold-cool cycles.

Key Features

• MoSi₂ heating elements rated for continuous operation up to 1700 °C and short-term exposure to 1800 °C in oxidizing atmospheres
• Standard C799 high-purity ceramic process tube (Al₂O₃-based), chemically inert and thermally shock-resistant
• Adjustable heating zone length (200–400 mm) and tube inner diameter (38–75 mm) to accommodate diverse sample geometries and throughput requirements
• Solid-state semiconductor power controller enabling ±1 °C temperature stability and minimal electrical noise—compatible with sensitive instrumentation nearby
• Integrated EN 60519-2–compliant overtemperature protection limiter with independent cut-off circuitry
• Bottom-mounted control panel and switching unit for ergonomic access; vertical configuration available with dedicated base mount and separate controller housing

Sample Compatibility & Compliance

The furnace supports a wide range of sample forms—including powders, pellets, wires, thin films, and crucibles—within inert, reducing, oxidizing, or vacuum environments. Optional accessories extend operational flexibility: gas-tight stainless steel flanges (with or without integrated water cooling), custom-diameter process tubes in quartz, silicon carbide, or recrystallized alumina, and end caps compatible with multiple sealing interfaces (e.g., O-ring, compression, or knife-edge). All standard configurations comply with IEC 61000-6-3 (EMC emission limits) and IEC 61000-6-2 (immunity), and meet mechanical safety requirements per EN 61000-1-2. For GLP/GMP-regulated applications, optional data logging modules support audit-trail-capable temperature recording aligned with FDA 21 CFR Part 11 principles when paired with validated software.

Software & Data Management

While the base model features analog/digital PID controllers with programmable ramp-soak profiles, Thermconcept offers optional digital interfaces—including RS485 Modbus RTU and Ethernet TCP/IP—for integration into centralized lab automation systems. Compatible firmware enables remote monitoring of setpoint, actual temperature, power output, and fault status via SCADA or LIMS platforms. Optional thermocouple calibration reports (traceable to DKD/DAkkS standards) and configurable alarm thresholds (e.g., deviation >±3 °C for >60 s) support quality system documentation. Firmware updates are delivered via secure USB interface and include version-controlled change logs for regulatory traceability.

Applications

This furnace serves critical functions across materials science, catalysis, solid-state chemistry, and metallurgy. Typical use cases include: sintering of advanced ceramics and refractory composites; annealing of semiconductor precursors under controlled partial pressures; synthesis of metal oxides and perovskites; thermal gravimetric analysis (TGA) coupling; crystal growth via vertical Bridgman techniques; and pre-oxidation treatments of SiC-based components. Its ability to sustain steep thermal gradients (up to 50 °C/cm) with three-zone control makes it suitable for zone-refining and directional solidification experiments requiring axial temperature profiling.

FAQ

What atmosphere types can this furnace operate under?
It is designed for ambient air, inert gases (N₂, Ar), reducing atmospheres (H₂/N₂ mixtures), and vacuum down to 10⁻³ mbar—when equipped with appropriate flanges, seals, and pumping interfaces.
Is the C799 ceramic tube included as standard?
Yes—the furnace ships with a C799 alumina-rich ceramic tube and two high-temperature fiber end plugs optimized for open-atmosphere operation.
Can the furnace be validated for ISO/IEC 17025-compliant testing?
Yes—Thermconcept provides IQ/OQ documentation templates, sensor calibration certificates (DKD-accredited), and thermal mapping protocols upon request to support laboratory accreditation processes.
What is the typical time-to-temperature for a 1600 °C ramp?
Using the standard 200 mm heating zone and 50 mm ID tube, ramp rates of 5–10 °C/min are achievable from ambient to 1600 °C, depending on load mass and insulation condition.
Are replacement MoSi₂ elements field-serviceable?
Yes—elements are modular and accessible without disassembling the furnace shell; full replacement kits include mounting hardware, electrical connectors, and alignment guides.