Muffle Furnace LMF-T770

Introduction

Muffle Furnace has a maximum temperature of 1700℃ and is designed to operate continuously at a working temperature of 1600℃. It features a compact 1-liter chamber, making it suitable for small-scale high-temperature applications. The furnace uses durable silicon molybdenum rods as heating elements, ensuring efficient and consistent heat delivery. Our muffle furnace chamber features a three-layer full fiber lining for superior insulation. Its outer shell is made of treated carbon steel, finished with acid pickling, phosphating, rust removal, and electrostatic spraying for durability and a clean appearance.

This muffle furnace is designed to meet the rigorous requirements of modern laboratory operations, ensuring high precision, reliability, and ease of use for various experimental applications.

Applications

Muffle Furnace  is ideal for high-temperature applications like material testing, sintering, and ashing, offering precise temperature control in a clean, sealed chamber.

Specifications

Maximum Temperature	1700℃
Working Temperature	1600℃
Capacity	1L
Heating Element	Silicon molybdenum rod
Temperature Measurement	Thermocouple
Touch Screen	7-inch , real-time display of temperature rise curve
Temperature Control	programmable controller (50 segments), fully automatic (heating, insulation, cooling)
Curves Supported	Up to 30 different working curves
Curve History	Stores past 30 days' work curves
Temperature Control Instrument	Linear current output, phase-shifting trigger, bidirectional thyristor
Alarm Features	Overtemperature alarm, thermocouple disconnection alarm
Temperature Accuracy	±1℃
Heating Rate	0 to 20℃/min (adjustable)
Atmosphere Protection	Inlet/outlet vacuum diaphragm valves, supports N₂, Ar, He
Flow Control	Float flowmeter
Vacuum Pump	-0.08 MPa
Pump Rate	3.6 m³/h
Motor Power	150W
Furnace Chamber	Three-layer full fiber lining: • 1st layer: 1800°C alumina ceramic fiber (500 kg/m³) • 2nd layer: 1430°C alumina ceramic fiber (400 kg/m³) • 3rd layer: High-density fiber cotton
Furnace Shell	Carbon steel with acid pickling, phosphating, rust removal, electrostatic spraying
Shell Cooling	Double-layer air-cooled shell with 2 to 4 cooling fans
Shell Cooling Surface Temperature	< 60℃
Pressure Resistance	Max 0.1 MPa positive pressure
Furnace Door	Handwheel locking device, silicone sealing ring, 20mm flange with milling groove
Power Supply	220V, 50Hz, Single phase, 1kW
Heating Zone Dimension	100 × 100 × 100 mm
Dimension	600 × 500 × 1210 mm
Weight	130 Kg

Features

7-inch

programmable controller

Alarm Features

Double-layer air-cooled shell

FAQs

1. What is a muffle furnace, and how does it work?

A muffle furnace is a high-temperature laboratory oven used to heat materials in a clean and controlled environment. It works by using electric heating elements to generate heat inside a sealed chamber, where the sample is placed. The "muffle" refers to the insulation that separates the heating elements from the sample area, preventing direct contact and contamination. This setup ensures even heat distribution and is ideal for applications such as ashing, sintering, heat treatment, and materials testing.

2. What are the typical applications of It muffle furnaces in research and industry?

It muffle furnaces are widely used in both research and industrial settings due to their ability to maintain stable high temperatures. Common applications include ashing of organic and inorganic samples, heat treatment of metals and ceramics, sintering of materials, quality control in manufacturing processes, and thermal analysis. These furnaces are also used in chemical labs, universities, metallurgy, ceramics production, and materials science research.

3. How do I choose the right It muffle furnace model for my application?

Choosing the right model depends on your specific temperature requirements, chamber size, and type of process. For instance, if you need to process larger samples or batches, select a model with a bigger chamber capacity. If your application requires very high temperatures (above 1500?), choose a model with suitable heating elements such as silicon carbide or silicon molybdenum rods. Consider features like programmable controllers, safety alarms, and atmosphere protection if your work involves delicate or reactive materials.

4. How does the insulation design in It muffle furnaces improve efficiency?

It muffle furnaces typically feature a multi-layer fiber insulation design that significantly improves thermal efficiency. These layers minimize heat loss and help maintain consistent internal temperatures while keeping the exterior shell cool to the touch. The insulation also shortens the heating and cooling time, reduces energy consumption, and extends the life of the heating elements by maintaining a stable environment inside the chamber.

5. What safety features do It muffle furnaces include?

It muffle furnaces are equipped with multiple safety features to protect both the operator and the equipment. These may include over-temperature alarms, thermocouple failure detection, automatic shut-off, and double-layer air-cooled outer shells to keep surface temperatures low. Some models also include a door interlock mechanism to prevent the furnace from operating when the door is open, as well as atmosphere control valves to handle gases like nitrogen or argon safely during sensitive experiments.