Muffle Furnace

Key Features

Vacuum-formed, high-purity alumina ceramic-fiber furnace chamber with low

thermal mass and excellent thermal insulation.

High-quality Kanthal A1 Wire heating elements, symmetrically arranged on both

sides of the chamber for improved temperature uniformity and long service life.

Programmable heating rate up to 5°C/min.

High-precision temperature control with an accuracy of ±1°C under stabilized

conditions.

Microprocessor-based programmable PID temperature controller with 1

program × 16 segments for Ramp / Soak / Hold operation.

SCR Thyristor-based power controller for smooth, stepless and precise

regulation of power to the Kanthal A-1 heating elements.Electrical components from Autonics / Schneider Electric / L&T or equivalent

reputed brands.

Independent over-temperature protection with audible/visual alarm and

automatic heater cut-off.

Thermocouple break protection with automatic heating shutdown.

Fully automatic program operation after initiation.

Optional Ethernet communication and temperature data-logging facility.

Product Overview

The HE-MF-1150°C Series Muffle Furnace is designed for routine and advanced

high-temperature laboratory applications where precise and repeatable

temperature control is required.

The furnace incorporates a high-purity alumina ceramic-fiber chamber, high-

quality Kenthal A1 heating elements, programmable PID temperature control

and SCR Thyristor power regulation to provide stable heating performance,

good temperature uniformity and reliable experimental results.

Technical Specification

Parameter Offered Specification

Maximum Temperature 1150°C

Continuous Working

Temperature

Up to 1150°C

Atmosphere Normal Air

Heating Principle Electric Resistance Heating

Heating Elements

High-quality Kanthal A1 Wire in Coil Form heaters,

symmetrically arranged for uniform heating

Power Control System

SCR (Silicon Controlled Rectifier) Thyristor-

Based Power Controller for smooth, precise and

stepless regulation of power supplied to the

heating elements

Chamber Construction

Vacuum-formed high-purity alumina ceramic-fiber

refractory chamberChamber Material Rating

Thermal Insulation

Heating Rate Cooling Rate

Temperature Accuracy Temperature Sensor Temperature Controller

Programmable Segments

Timer Function Control Mode

Display Door Type Door Insulation

Outer Body

Electrical Components Power Supply High-temperature alumina ceramic fiber suitable

for 1425°C class service

Multi-layer, low-thermal-mass, zirconia-grade

high-temperature insulation

Programmable; 1–5°C/min recommended, maximum

≤5°C/min

Recommended ≤5°C/min for improved refractory and

heating-element service life

±1°C under stabilized operating conditions

K-Type Thermocouple

Digital microprocessor-based programmable PID

temperature controller with auto-tuning

1 Program × 16 Segments for Ramp / Soak / Hold

operation

Programmable timer / soak-time control

Fully automatic programmable operation with

Ramp, Soak and Hold functions

Digital display for Set Value (SV) and Process

Value (PV)

Front-opening insulated door

High-temperature refractory door plug/block to

minimize heat loss

Heavy-duty MS construction with powder-coated

finish

Autonics / Schneider Electric / L&T or equivalent

reputed make

220 V AC, 1 Phase, 50 Hz

For Lab Furnace Continuous Operation 1150°C