MUFFLE FURNACE

I. Basic Specifications 

Model: High-temperature Box-type Sample Melting Furnace 

Furnace dimensions: 650 × 750 × 300 mm 

Power supply: 380V, 50Hz, 22kW 

Capacity: Can melt 30 65g crucibles at a time (base diameter 105mm × top diameter 165mm × height 55mm) 

II. Temperature Parameters 

Maximum temperature: 1400°C 

Long-term operating temperature: 1350°C 

Control range: 80 – 1400°C 

Temperature control accuracy: ±1°C 

Temperature uniformity of the furnace: ±1°C (For large furnaces, multi-zone temperature control can be used for adjustment) 

Heating rate: Adjustable. Maximum 30°C per minute (non-linear), minimum 1°C per hour. 

III. Core Components 

Heating element: U-shaped silicon carbide rod, installed vertically on the furnace wall 

Temperature sensing element: Platinum-rhodium S-type thermocouple (0–1600°C) 

Lining and insulation: 

Fire-resistant lining: High-purity alumina lightweight plates (anti-cracking, energy-saving) 

Insulation layer: Three-layer structure (alumina fiber + silicon-aluminum fiber + polycrystalline alumina) 

Cooling system: Double-layer air-cooling structure, with directional airflow to prevent heating elements from oxidizing. 

Furnace body: CNC processed, with acid/heat resistant coating, and double-color attractive finish. 

IV. Control and Security 

Control System: 

7-inch touch screen, supporting multi-segment program settings, historical curves and data storage 

Real-time display of temperature, power, voltage, current and program segment 

Equipped with RS485 communication interface (with a range of 1200 meters), supporting PC programming and data recording 

Safety protection: Dual-loop control, including overvoltage, overcurrent and overtemperature protection 

V. Ancillary Equipment 

Door mechanism: Electric - pneumatic top-opening type. The opening height can be controlled by a foot switch or a touch screen. 

Casting clamp (custom made): Made of 304 stainless steel 

Cast iron mold lathe: Carbon steel casing, powder coating 

Cast iron mold: Used to hold or cool molten metal samples, ensuring proper shaping and facilitating analysis. 

VI. Key Features 

High-capacity sample melting (30 samples per time), suitable for batch sample preparation 

High-precision temperature control (±1°C) and excellent furnace temperature uniformity 

Quick heating (up to 30°C per minute), highly energy-efficient 

Intelligent touch screen control, supporting remote communication and data management 

Multi-layer insulation and directional air-cooling design, balancing energy conservation and component protection