MUFFLE FURNACE

MUFFLE FURNACE
MAKE DINESH SCIENTIFIC
MODEL DS-MF-1700
PRODUCT DESCRIPTION:
A muffle furnace is a specific kind of furnace used mostly in industrial and laboratory settings for high-temperature applications. A chamber inside the furnace that keeps the sample or material away from the heating components is referred to as a “muffle”. Its precise temperature control and contamination prevention feature make it ideal for a wide range of industrial and scientific applications.
CONSTRUCTION:
 A particular type of furnace called a muffle furnace is mostly utilized for high-temperature applications in industrial and laboratory environments. The term “muffle” refers to a compartment inside the furnace that keeps the material or sample away from the heating components. It is perfect for a variety of industrial and scientific applications because to its accurate temperature control and contamination prevention feature.
HEATING ELEMENTS:
 Muffle furnaces use heating elements such as resistance wire or graphite rods that surround the muffle chamber. These elements generate and distribute heat evenly throughout the chamber, allowing for precise temperature control.

TEMPERATURE CONTROL:
 Muffle furnaces can reach temperatures that are quite high, frequently above one thousand degrees Celsius. They have temperature control systems built in, allowing users to preset and keep particular temperatures for various uses.
INSULATION:
 Muffle furnaces are well-insulated to increase energy efficiency and maintain a constant interior temperature. Insulating materials guarantee that the furnace runs effectively and assist avoid heat loss.

APPLICATIONS:
 Applications for muffle furnaces can be found in metallurgy, geology, chemistry, and materials science. They are frequently employed in processes like sample heat treatment, annealing, sintering, and ashing.

VERSATILITY:
 Additional features like digital displays, customizable temperature profiles, and safety measures like over-temperature prevention may be available with muffle furnaces, depending on the particular type.

SAMPLE CONTAINMENT:
 The sample is kept in a controlled environment by the inner chamber, or muffle, which shields it from outside influences and avoids cross-contamination. This is especially crucial in analytical and research environments where purity and precision are essential.
 In conclusion, a muffle furnace is an advanced heating apparatus made for uses that need for exact temperature control and high temperatures. Because of its distinctive design and functionality, it is a vital instrument for quality assurance, scientific research, and a variety of industrial processes.
FEATURES:
 Triple walled with an exterior casing and an interior wall composed of double-walled, thick P.C.R.C. sheet that has been properly coated;
 Lightweight with ceramic fiber wool insulation.
 There is also a viewing cover on the entrance;
 Heating elements are insulated with cerwool.
 Comes in two distinct operating ranges, with a operating temperature of 1200°C.
 A built-in overload safety cut-off is included as standard.
 Suitable for a wide range of applications, such as quantification of coal and lime and gravimetric examination of organic substances.
 It offers accurate temperature control thanks to the renowned Autotune Digital P.I.D. Controller.
 The materials are heated evenly thanks to the extremely effective heater that is enclosed inside the chamber.

FURNACE CONSTRUCTION /DESIGN :
 Double construction with fan assisted air flow to maintain lower temperatures on external surface. Outer casing and heating element terminals and connection braids cooled with axial cooling fans with vertical exit cowling. Control cabinet axial cooling fan to maintain the electronic components within a correct operating temperature range.
 The system high quality of insulation to ensure that the maximum external surface furnace wall temperature during continuous operation shall not exceed 50°C. Advanced refractory element terminals insulation to reduce thermal losses through the roof insulation to maintain the lowest possible terminal temperatures.
TEMPERATURE UNIFORMITY DATA & GRAPH
Temperature (°C) Dimensions (H x W x D) (mm) Distance above hearth (mm) Uniform Temperature (°C)
1000 110±10 x 100±10 x 20±10 15 ±10
1200 110±10 x 100±10 x 160±10 15 ±10
1400 110±10 x 100±10 x 150±10 15 ±5
1600 110±10 x 100±10 x 170±10 15 ±5
TECHNICAL DETAILS:

Configuration Bench mounted laboratory chamber furnace
Maximum Temperature 1700°C
Maximum Continuous Operation Temperature 1600°C for 24×7 Hours
Heat up time ≤ 60 minutes
Useable Chamber
Volume ≤ 5 Liters (Measuring from Heating Elements to Heating Elements)
Furnace external dimensions: H x W x D (mm) 550 ±50 x 800±50 x 600±50
Usable chamber dimensions: H x W x D (mm) 150 ±10 x 150±10 x 220±10
Door Design
Door Design Vertical lift door to prevent operator exposure to hot surfaces
Door Insulation Aluminum foil-lined door cover for reduced surface temperature
Door Operation Bushed and spring counterbalanced mechanism
Safety Switch Door positive break safety switch to disconnect heating element circuit when door is opened
Thermocouple
Thermocouple Type High-grade Type B
Application Furnace temperature monitoring
Entry Type Vertical entry
Immersion Substantial immersion within the chamber
Sheath Material Recrystallized alumina for full protection
Accuracy Ensures precise chamber temperature reporting
Heating elements
Heating Element Best quality Molybdenum di-silicide (MoSi₂)
Installation Installed in rectangular housing, hanging vertically, easily replaceable
Thermal Insulation Innovative design for fast heat-up rate, excellent temperature uniformity, and long reliable working life
Operation Suitability Withstands stresses of intermittent operation
Element Spacing Correctly spaced from insulation walls for improved temperature distribution, prevents overheating, and extends lifetime
Safety Feature Case thermal switch to isolate heating elements in case of excessive case temperature
Manual Reset Equipped with a manual reset switch
Control Panel
Control Panel Clear control panel with temperature programmer and independent over-temperature protection
Indicators & Switches Instrument switch, fault warning lamp, and heating power indicator lamp
Insulation
Hot Face Insulation Advanced refractory hot face insulation combined with low thermal mass ceramic fiber for energy efficiency.
Chamber Quality High-quality chamber design with optimized insulation.
Brick Insulation Long-lasting robust brick insulation around the chamber opening to resist accidental damage.
Backup Insulation Low thermal mass advanced refractory thermal insulation for enhanced performance.
Housing Design Installed in a rectangular housing for low energy consumption and high heating rates.
Over Temperature Protection Control An independent digital temperature protection controller that may be adjusted to safeguard priceless samples and allow the furnace to run unattended.
Programmable temperature controller
Controller Type Microprocessor-based digital PID controller
Programming Segments 24 segments per program
Segment Composition Each segment includes ramp step, call, dwell, and end
Relay Outputs Operates with 2 relays
Program Storage Provision to store one program
Communication Ethernet-enabled
Cooling System Fan cooling for low external case temperature
Furnace Weight < 120 kg
Spare Heating Element 1 spare heating element included
Electrical Connection 220-240V, Single-phase + Neutral
Power Consumption < 5.0 kW