Description About Laboratory furnaces used in various industrial processes.
Muffle Furnace, Bottom Loading furnaces, Top Loading Furnaces, VMK high temperature furnace, Tubular furnace.
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Laboratory furnace
1.
2. Contents
• Considerations while selecting Laboratory Furnaces
• Furnace types
• LM standard Furnace
• Bottom Loading Furnace
• VMK high temp. Lab furnace
• Tubular Furnace
• Applications
3. Considerations while
selecting Furnace
Important specifications to consider when selecting for laboratory furnaces:
• Process temperature- The process temperature is the maximum temperature at
which the unit may operate and still maintain rated performances.
• Width or tube outer diameter- The width refers to the internal width dimension
of the unit, or for tube furnaces, the outer diameter of the tube.
• Length of the chamber or tube- The length is the length dimension of the unit, or
on tube furnaces, the heated length.
• Height- The height refers to the internal height dimension of the unit.
4. Furnace Configuration
laboratory furnaces are configured in muffle or chamber, bottom loading, top loading, and
tube.
1. Chamber or Box furnaces are convenient
furnaces to use. As the name implies, the
furnace has a box shape and a box-shaped
interior.
2. Bottom loading furnaces load the sample
or product to be treated through the
bottom of the chamber via a platform
elevator.
Bottom Loading Furnace
LM (Tmax 1200°C)
5. 3. In Top loading laboratory furnaces the
product to be processed is loaded through
the top.
4. Tube furnaces are designed to heat a tube
that is usually 50 to 100 cm in length and
from 25 to 100 mm in diameter. Samples
are placed inside the tube in ceramic or
metal boats using a long push rod. The
tube is surrounded by heating elements,
which may also incorporate a
thermocouple.
Tubular (Tmax 1500°C)
Top loading furnace
6. LM standard furnace
The LM laboratory chamber furnace range of general purpose furnace is supplied in four sizes, each
available with max operating temperature. either 900°C or 1200°C.
Standard Features
• 900°C or 1200°C maximum operating temperature.
• 1.5, 5, 7.9, 18.5 liter chamber volumes.
• Eurotherm make PID controller with single ramp to set
point.
• Side way sliding door keeps heated surface away from the
users.
• Energy efficient low thermal mass insulation
• Easy access to element & controls simplifies maintenance
& servicing.
• Kanthal A1 heating element for optimum uniformity.
Optional
• Over temperature protection (recommended to protect valuable contents & for
unattended operation)
• A range of sophisticated digital controllers, multi-segments programmers and data loggers
is available. These can be filled with RS-232 or RS-485.
8. Maximum Temperature: 1800 ⁰C
Working Chamber: 120(W) X 120(D) X 120(H) mm
Controller: PID based programmable controller
Controlling sensor: Thermocouple “B” type
Heating element: “U” MoSi2 Heating element
Insulation: Multiple layers of high temperature fiber insulation boards ensure
minimum heat loss.
Time to reach max temperature: 1.5 Hr
Temperature uniformity: approx +/- 5 ⁰C
Bottom lifting arrangement: Bottom lifting plate form with D.C motor ensures
smooth lifting with speed of 3-4mm per second.
Outer Construction: CRCA sheets duly powder coated.
Power supply: 230V AC, 50 Hz
Bottom loading furnace
Model Max. Temp(°C) Internal Dimension
(HxWxD)(mm)
Heating Element
BLF - 1200 1200 120x120x120 Kanthal A1
BLF - 1500 1500 120x120x120 Silicon Carbide
BLF - 1800 1800 120x120x120 MoSi2
9. The VMK high temperature chamber furnace are classified into the three range of 1400°C, 1600°C and
1800°C models.
VMK high temperature
laboratory furnace
Standard Features
• 1400°C, 1600°C and 1800°C max. operating temperature.
• From 4 to 6.9 liters capacities.
• Eurotherm make controller.
• Over temperature protection with alarm.
• RS-232 communication for computer interface.
• advance refractory interior, used in combination with energy efficient
low thermal mass insulation.
Optional
• Over temperature protection (recommended to protect valuable contents & for
unattended operation)
• A range of sophisticated digital controllers, multi-segments programmers and data loggers
is available. These can be filled with RS-232 or RS-485.
11. Tubular Furnace
The tubular furnace is available with max operating temperature up to 1500°C
Standard Features
• 1500°C maximum operating temperature
• High Alumimium ceramic tubes
• Eurotherm make PID controller with single ramp to set
point
• Energy efficient low thermal mass insulation
• Easy access to element & controls simplifies
maintenance & servicing
• Uniform temperature
Optional
• Over temperature protection (recommended to protect valuable contents & for
unattended operation)
• A range of sophisticated digital controllers, multi-segments programmers and data
loggers is available. These can be filled with RS-232 or RS-485.
• Water cooled flanges & vacuum & gas inlet provision available