Digiqual Systems

Digiqual - Muffle Furnace
The general design and construction comprises of an Outer chamber fabricated out of thick cold rolled mild steel sheets, Rectangular in shape placed horizontally with opening in the front. Refractory Muffle of required size forms the inner chamber. This is surrounded by ceramic fibre blankets on all the four sides and the rear to reduce heat losses to a minimum.

The chamber is provided with a single door with 100mm thick ceramic fibre insulation mounted on heavy duty hinges and provided with latch. The furnace is heated by Kanthal A1 heating coils wound in spiral form on the muffle embedded in high grade refractory cement and backed by ceramic fibre blankets.

The temperature inside is maintained at any desired level within the operating range by a Digital Automatic Temperature Indicator-cum- controller working in conjunction with a Cr/Al thermocouple housed in the hot zone.

Control panel : Consists of temperature controller, Air break magnetic contactor, indicating lamps, isolator. The furnace is finished in attractive powder coat finish.

Operating Temp : Ambient 5 – 900 °C / 1000° C.

Max. Temperature: 900 °C. /1000 °C

We Digiqual Systems Fabricated High Temperature Box Furnace according to Customer Requirements.

This model can go max of 1400 * C using Silicon Carbide Heating Elements.

We fabricate Stand Alone Model & Table Top Model.

ð Working Temperature up to 1400°C

ð Tailor made box size as per the customer requirement

ð Silicon carbide heating elemens

ð 1°C accuracy at dwell temp

ð Rapid heating rate(1 to 20°C/min) programmable

ð Suitable for nanotechnology applications

ð Murugappa Insulation

ð Digiqual - Indegenous thyristOr controller

ð Digital Programmable Digital temperature indicator cum controller

Digiqual muffle furnace is Double walled chamber inner made of 4 nos. siliminite refractory slabs and outer made of cold rolled mild steel sheets finished in powder coating. Insulation by Ceramic fibre blankets to minimize radiation heat loss. Double walled insulated door mounted on heavy-duty hinges is provided with effective locking arrangements. Heating elements will be Kanthal A1 coils suspended in the grooves of the refractory. Temperature is maintained and controlled by Digital temperature controller working in conjunction with Cr/Al thermocouple placed in the hot zone. Supplied complete with control panel.
Operating Temperature Ambient 5°C to 1100 DegreeC.
Max. Temperature 1150 DegreeC.
Inner Chamber size
Power Rating kw
4" x 4" x 9"
1.8 Kw
5" x 5" x 10"
2.5 Kw
6" x 6" x 12"
3.0 Kw
8" x 8" x 12"
4.0 Kw
12" x 12" x 12"
5.0 Kw

• High temperature chamber furnaces with chamber volume of 16 - 70 litres*
• Free-standing furnaces with highest operation standard on precision and comfort. Very fast heating and cooling cycles, low power rating
• Outer-casing made of strong and sleek framework construction
• Double-walled housing with rear-ventilation to ensure very low outer-casing temperatures
• Inner casing and front made of stainless steel
• Parallel-guided door moving side-wards with hot insulation surface to the rear, away from operator
• Insulation made of high grade aluminium oxide fibre with low thermal mass for very fast heating and cooling
• High grade heating elements made of Molybdenum Disilicide (MoSi₂) mounted in two sides, additional heating from the rear wall available
• Heating elements controlled by thyristors for very precise temperature control, wear-free and noiseless
• Sophisticated process control systems
• Exhaust pipe in the furnace ceiling