Muffle Furnace 1100°C 1400°C 1600°C 1800°C

Muffle Furnace 1100°C 1400°C

About Muffle Furnace

Muffle Furnace is a kind of front loading box type kiln, which is used to create extremely high temperature required to perform various heat treatment processes such as melting, annealing, ash determination and coal analysis etc. The heating temperature inside muffle furnace chamber may vary between 900°C to 1400°C and high temperature 1600°C to 1800°C. The key usage of a laboratory muffle furnace is to evaluate characteristics of materials under high heat; therefore, it is widely used in industrial and laboratory research facilities and some educational projects. Depending upon applications and sample sizes, it is available in different dimensions and material of construction etc; furthermore, a number of accessories such as printer and temperature chart recorder can also be fitted to keep records of batch name, furnace temperature, date and time.

Muffle Furnace Applications

- Ash determination
- Alloying
- Annealing
- Bonding
- Brazing
- Calcination
- Coal analysis
- Coating test
- Drying
- Ferrous metal heat treatment
- Enameling
- Fusion
- Gravimetric analysis
- Ignition test
- Material testing
- Metallurgy
- Sintering
- Tempering
- Quantitative analysis
- Metal / steel tools making

PlusFurnace™ Muffle Furnace

PlusFurnace™ muffle furnace units are manufactured by "Exacta Furnaces", one of the oldest manufacturers in Delhi, India having existence over 40 years since 1975. The company is known for constructing cost effective heat treatment muffle furnaces that are supplied at attractive factory price and covered under excellent warranty terms. The product range is available in various temperature ranges 1100°C, 1400°C, 1600°C and 1800°C and constructed in different chamber sizes.


Our muffle furnaces are durable, ruggedly designed and offer long service life. The outer body (case) is made of thick mild steel (18 / 20 gauge) powder coated and stove painted (SS 304 / 316 optional) shaped with welded joints and branded nuts bolts and screws. Inner chamber (working chamber) is made of Ceramic board (up to 1200°C), Zirconia board (Up to 1600°C) and high alumina bricks (1800°C).

Control Panel

A control panel has everything you need to run a muffle furnace. Power on/off MCB, controllers, indicators and electric meters etc. are fitted in control panel. Depending on design, a control panel can be designed at right side or bottom of the unit.

Heating Elements

In order to achieve higher accuracy, we use only imported and branded heating elements for our laboratory muffle furnace machines. For up to 1100°C temperature, we use Kanthal A-1 heating elements, from 1200°C to 1450°C Silicon carbide (SiC) heating elements are used. molybdenum Disilicide (MoSi2) heating elements are used for 1500°C to 1800°C muffle furnace.


A controller is a device which adjusts temperature of a muffle furnace; we use various controllers that are branded and deliver high temperature accuracy. We use digital PID controller, profile controller with ramp and soak modes and PLC with HMI interface; it is totally customers' choice which type of controller he needs in his muffle furnace.

Optional Accessories

When comes to custom designing of laboratory muffle furnace and after sales service, accessories play an important part; heating elements, temperature controllers, tongs and gloves and switches are always available in stock with us.

Standard Features

  • Temperature range 900°C, 1100°C and 1450°C
  • Powder coated mild steel (MS) construction
  • 30 steps digital PID controller
  • Kanthal A1 heating element
  • Over temperature protection
  • Supplied with tongs and gloves

Standard Chamber Dimensions

  • 9"x4"x4"
  • 10"X5"X5"
  • 12"X6"X6"
  • 18"X9"X9"


  • Nitrogen inlet
  • Gas vent port
  • Stainless steel construction
  • PLC with HMI interface
  • Door safety switch
  • Crucible trays
  • Temperature chart recorder
  • Ourter surface cooling fan
  • Metallic stand with lockable wheels

Parts / Accessories

Kanthal A1 Heating Element Silicon carbide heating element
Kanthal A1 Silicon carbide
MoSi2 heating element furnace PID controller
MoSi2 PID Controller
Furnace programmable controller Furnace PLC HMI
Programmable Controller PLC HMI
Furnace door safety switch Caster wheels with lock
Door Safety Switch Caster Wheels with Lock
Furnace thermocouple Furnace Gloves
Thermocouple Furnace Gloves
Furnace crucible Furnace tongs
Furnace Crucibles Tongs
Strip Chart Recorder Cooling Fan
Strip Chart Recorder Cooling Fan