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Box Type Furnaces
Precision Thermal Processing Solutions for Laboratories & Industry
At Srinitha Scientific, we design, manufacture, and export premium-grade Box-Type Furnaces engineered to deliver exceptional thermal uniformity, ultra-fast heating rates, and robust performance under demanding operational conditions. Built with high-purity refractory insulation and advanced heating elements, our box-type furnaces cater to temperature requirements ranging from 1200°C to 1800°C.
Whether you require a compact benchtop system for advanced material research or a heavy-duty industrial muffle furnace for batch production, our thermal systems are tailored to ensure energy efficiency, operator safety, and precise process repeatable accuracy.
What is a Box Type Furnace?
A Box Type Furnace (often referred to as a Muffle Furnace or Chamber Furnace) is a front-loading, insulated heating enclosure used for high-temperature thermal processing. The chamber is constructed using multi-layer ceramic fiber insulation and specialized heating elements to rapidly generate and retain extreme heat while keeping external casing temperatures low.
Because of its enclosed, rectangular chamber design, a box furnace allows operators to easily load and unload samples via a hinged or vertical swing door. It provides a highly uniform thermal zone, making it ideal for processes such as annealing, sintering, ash determination, calcination, stress relieving, and ceramic firing.
1200°C Box Type Furnace
1300°C Box Type Furnace
1600°C Box Type Furnace
1700°C Premium Box Type Furnace
1800°C Premium Box Type Furnace
Key Features & Advantages
- Wide Temperature Range (1200°C – 1800°C): Equipped with application-matched heating elements—Kanthal A1/APM wire (1200°C), Silicon Carbide (SiC) rods (1400°C–1500°C), or Molybdenum Disilicide (MoSi2) elements (1700°C–1800°C).
- Multi-Layer Ceramic Insulation: Built with high-purity vacuum-formed ceramic fiber insulation boards to maximize thermal efficiency and reduce energy losses.
- Microprocessor-Based PID Temperature Control: Programmable digital controllers featuring multi-step ramp/soak profiles, auto-tuning, and digital LED displays for tight control (±1°C stability).
- Heavy-Duty Double-Walled Chassis: Powder-coated electro-galvanized mild steel or full stainless-steel outer body engineered for active air cooling, ensuring safe shell temperatures during peak operation.
- Integrated Safety Mechanisms: Over-temperature protection cut-off, door interlock switch (cuts power to elements when door opens), and thermocouple-break protection.
- Optional Controlled Atmosphere: Available with gas inlet/outlet ports and vacuum sealing capability for processing under inert atmospheres (Nitrogen, Argon, Formging Gas)..
Primary Applications
Srinitha Scientific box-type furnaces serve critical thermal processing requirements across diverse sectors:
- Advanced Ceramics & Glass Processing: Sintering, firing, glaze testing, and thermal bonding of high-tech ceramic components.
- Metallurgy & Heat Treatment: Annealing, hardening, tempering, normalizing, and stress-relieving of alloy samples.
- Materials Science & R&D: Nanomaterial synthesis, crystal growth, and solid-state reaction studies in academic and industrial labs.
- Powder Metallurgy: Debinding and high-temperature sintering of powdered metal compacts.
- Quality Assurance & Testing: Loss-on-ignition (LOI) testing, ashing analysis, and thermal endurance validation.
Technical Specifications
| Parameter | Specifications |
|---|---|
| Temperature Range | 1200°C / 1400°C / 1600°C / 1700°C / 1800°C |
| Max Continuous Working Temp | 1150°C to 1750°C (Depending on configuration) |
| Heating Elements | High-grade Kanthal / Silicon Carbide (SiC) / MolyDisilicide (MoSi2) |
| Temperature Accuracy | ±1°C |
| Temperature Uniformity | ±5°C within working chamber |
| Thermocouple Type | K-Type (1200°C) / S-Type (1400°C–1600°C) / B-Type (1700°C–1800°C) |
| Chamber Capacity | Standard: 3 Liters to 100+ Liters (Custom sizes available) |
| Control System | Digital Programmable PID Controller (16/32 segment profile options) |
| Power Supply | Single Phase 230V AC / Three Phase 415V AC, 50Hz |
| Outer Body Construction | Heavy-gauge Steel with epoxy powder coating or SS 304 |
Why Choose Srinitha Scientific?
- Engineering Excellence: Decades of specialized manufacturing expertise in thermal systems and laboratory equipment.
- Uncompromised Quality: Built using prime-grade insulation material and genuine high-life heating elements for lower maintenance costs.
- Customization Capabilities: In-house R&D and design teams ready to tailor dimensions, atmosphere controls, and automation levels to your exact needs.
- Energy-Efficient Design: Engineered with modern thermal insulation profiles to minimize power consumption and reduce heat radiation to surrounding areas.
- Global Support & Export Readiness: Quick turnaround times, worldwide delivery, and dedicated post-sales technical assistance.
Frequently Asked Questions (FAQ)
1. What heating elements are used for different temperature ranges?
For temperatures up to 1200°C, high-grade Kanthal resistance wire is used. Systems rated up to 1400°C utilize Silicon Carbide (SiC) heating rods, while 1700°C and 1800°C furnaces rely on Molybdenum Disilicide (MoSi2) elements.
2. Can Srinitha Scientific build custom chamber dimensions?
Yes. Alongside standard laboratory and pilot scale sizes, we design and manufacture custom chamber sizes, door opening mechanisms (up-sliding, side-hinged, or pneumatic), and specific power configurations based on client requests.
3. How do you ensure temperature uniformity inside the chamber?
Uniformity is achieved through multi-zone element placement, high-density vacuum-formed alumina insulation, and optimized chamber geometry designed to minimize thermal gradients.
4. Are these furnaces suitable for inert or controlled gas atmospheres?
While standard box furnaces operate in air atmospheres, Srinitha Scientific offers modified atmosphere box furnaces equipped with sealed muffles, gas inlet/outlet ports, and flow meters for purging inert gases such as Nitrogen, Argon, or oxygen-deficient gas mixes.
5. Does Srinitha Scientific export box furnaces internationally?
Yes, Srinitha Scientific is a leading exporter in India, delivering industrial and laboratory furnaces globally with international safety standards, robust export packaging, and technical support.