Shanghai Dengsheng Instrument Manufacturing Co., Ltd

Ceramic Fiber Muffle Furnace

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  • Ceramic Fiber Muffle Furnace
  • Ceramic Fiber Muffle Furnace
  • Ceramic Fiber Muffle Furnace
  • Ceramic Fiber Muffle Furnace
  • Ceramic Fiber Muffle Furnace
  • Ceramic Fiber Muffle Furnace
  • Ceramic Fiber Muffle Furnace
  • Ceramic Fiber Muffle Furnace

Ceramic Fiber Muffle Furnace

Ceramic fibre muffle furnaces serve as indispensable auxiliary heating equipment for dry sample preparation in analytical laboratories, for melting experiments in materials and metallurgical laboratories, and for processes such as annealing, quenching, sintering, calcination, roasting, melting, ashing, and ash determination in heat treatment departments, as well as other applications requiring elevated temperatures.

  • Product Introduction
  • Selection Table
  • Industry Standards
  • Safety Protection
  • Optional Accessories

1.  Integrated all-in-one design with compact footprint, featuring a large LCD controller for intuitive operation;

2.  Microprocessor-based intelligent temperature control system with PID logic and automatic parameter tuning for precise, reliable regulation;

3. Automatic parameter retention during emergencies with power-restoration capability, alongside sensor self-diagnosis, leakage protection, over-temperature alerts, and fault alarms;

4. Unique furnace door design where the door tongue partially embeds within the chamber upon closure, preventing high-temperature air leakage. This minimises heat loss for significant energy savings while enhancing temperature uniformity within the furnace;

5.  The outer casing employs premium cold-rolled steel plate, CNC precision-engineered with phosphated surface treatment and electrostatic powder coating. This provides corrosion resistance, anti-static properties, and a durable, colourfast finish;

6.  The furnace chamber utilises novel ceramic fibre insulation material (polycrystalline alumina fibre, AL₂O₃), offering advantages including light weight, high-temperature resistance, low thermal conductivity, low specific heat capacity, and resistance to mechanical vibration;

7. The furnace chamber employs a modular design. Heating elements below 1200°C are semi-embedded, while those above 1200°C are directly exposed. The insulation material, also polycrystalline alumina fibre, achieves over 97% thermal efficiency, delivering significant energy savings;

8. Premium imported nickel-containing HRE alloy heating wires (1000/1200°C) and silicon carbide rods (1300°C) ensure rapid heating, oxidation resistance, and a service life 3-5 times longer than standard heating elements, delivering more uniform heating;

9.  Unique air insulation layer design employs branded circulating fans to force airflow circulation within the insulation layer, substantially reducing the surface temperature of the chamber for safe and reliable operation;

10.  Optional 30-segment programmable controller enables stepwise heating with configurable dwell times at each temperature stage, facilitating multi-condition operation (optional);

Muffle furnace (1000/1200°C)

Model DTH-2.5A-2 DTI-4A-7.2 DT-4A-12 DTI-6A-18 DTH-10A-30 DTI-10A-36 DTI-16A-80
DTH-2.5B-2 DTI-4B-7.2 DTI-4B-12 DTI-6B-18 DTI-10B-30 DTI-10B-36 DTI-16B-80
Controller 4.3-inch triple-row digital LCD display (set temperature, operating temperature, constant temperature duration)
Temperature Control Method PID intelligent logic calculation                        
Temperature Range Type A: RT+50~1000°C Type B: RT+50~1200°C                        
Temperature Accuracy ±1°C                        
Temperature Resolution 1°C                        
Heating Time 1000°C≤30 minutes                        
Heating Material HRE alloy
Furnace Chamber Material Aluminosilicate (ceramic fibre) vacuum-formed monolithic structure                        
Thermocouple Type K nickel-silicon thermocouple                        
Insulation Material Ceramic fibre board                        
Housing Material Powder-coated cold-rolled steel plate                        
Safety Protection Overtemperature alarm, door-opening power cut-off, earth leakage protection, rapid fuse, earth leakage protection
Furnace Chamber Dimensions (mm) 120π200x80 200x300x120 200x300x200 250z400x180 300x500x200 300x400x300 400π500x400
Overall Dimensions (mm) 430z605x550 510π705x590 530x715x690 570x800x700 640x880x730 700x860x860 800x960z960
Volume 1.9L 7.2L 12L 18L 30L 36L 80L
Gross/Net Weight (kg) 62/50 84/71 98/83 107/91 125/105 137/112 199/169
Power Supply Voltage AC220v/15A AC220v/25A AC380v/25A AC380v/30A AC380v/50A
Power Rating 2.5kw 4kw 4kw 6kw 10kw 10KW 16EW

Muffle furnace (1300/1400°C)

Model DTM-4C-3.8 DTM-6C-6.8 DTM-8C-18 DTM-12C-36 DTM-20C-80
DTM-4K-3.8 DTM     6K-6.8 DTM 8K-18 DTM-12K-36 DTM-20K-80
Temperature Control Method 4.3-inch triple-row digital LCD display (set temperature, operating temperature, constant temperature duration)                
Temperature Range Type C: RT+50~1300℃    Type K: RT+50~1400℃                
Temperature Control Accuracy 1℃                
Display High-brightness LCD digital display                
Sensor Type S platinum-rhodium thermocouple                
Heating Element Silicon carbide heating rods
Chamber Material Aluminosilicate (ceramic fibre) vacuum-formed monolithic structure                
Heat-Up Time RT~1200℃≤40min                
Operating Mode Constant-value timed operation                
Timer Range 1~9999min                
Safety Protection Overtemperature alarm, door-opening power cut-off, earth leakage protection, rapid fuse-blow, leakage protection
Power Supply Voltage AC220V/25A AC3B0V/18A AC380V/25A AC380V/35A AC380V/60A
Chamber Dimensions (mm) 150x250x100 150x300x150 250x400x180 300x400x300 400x500x400
Overall Dimensions (mm) 500x630x660 500x680x710 610x670x675 650x780x850 760x900x980
Volume 3.75L 6.75L 18L 36L 80L
Gross/Net Weight (kg) 85/70 93/78 124/108 144/124 275/245
Rated Power 4KW 6KY 10KW 18KW 20KW

Muffle furnace (1600/1700°C)

Model     DTM-2.5S-1 DTM-4S-4.5 DTM-5S-5.4 DTM-9S-9 DTM-12S-12 DTM-18S-36
DTM-2.5X-1 DTH-4X-4.5 DTM-5X-5.4 DTM-9X-9 DTM-12X-12 DTM-18K-36
Controller     LED High-Brightness Digital Display (Yudian)                    
Temperature Control Method     Microprocessor-Controlled Intelligent PID Calculation                    
Temperature Range     Type S: RT+50~1600℃   Type: RT+50~1700℃                    
Temperature Control Accuracy     1℃                    
Cycling Method     Natural Convection                    
Heating Material     Silicon Molybdenum Rod
Furnace Chamber Material     Aluminosilicate (ceramic fibre) vacuum-formed in a single moulding                    
Thermocouple     Type B thermocouple                    
Temperature Rise Time     RT~1500℃≤70min                    
Operating Mode     Fixed-value timed operation                    
Timing Range     1~9999min                    
Safety Protection     Overtemperature alarm, door-opening power cut-off, earth leakage protection, rapid fuse-blow, leakage protection
Power Supply Voltage     AC220V/50Hz AC220V/20A AC380V/25A AC380V/25A AC380V/35A AC380V/50A
Furnace Chamber Dimensions (mm)     100*100*100 150x200x150 150x300x120 200x300x150 200x300x200 300z400x300
Overall Dimensions (m)     460z600x750 510x700x810 500x680x680 560x570x655 550x680x760 650780x850
Volume     1L 4.5L 5.4L 9L 12L 36L
Gross/Net Weight (kg)     72/62 99/87 111/94 152/136 182/162 275/250
Rated Power 2.5KW 4kw 5kw 9KW 12KW 18KW

Muffle furnace (1800°C)

Model DTM-4T-4.5 DTM-12T-12 DTM-18T-36
Controller LED High-Brightness Digital Display (Yudian)        
Temperature Control Method Microprocessor-Controlled Intelligent PID Calculation        
Temperature Range RT+50 to 1800°C        
Temperature Control Accuracy 1°C        
Cycle Mode Natural Convection        
Heating Material Silicon Molybdenum Heating Rod        
Furnace Chamber Material Aluminosilicate (Ceramic Fibre) Vacuum-Formed in a Single Process
Thermocouple Type B Thermocouple        
Temperature Rise Time RT~1500℃≤70min        
Operating Mode Fixed-value Timing/Program Operation (30 segments)        
Timing Range 1"9999min        
Safety Protection Overtemperature Alarm, Door-Open Power Cut-off, Earth Fault Protection, Rapid Fuse, Earth Leakage Protection
Power Supply Voltage 380V/25A AC380V/35A AC380V/55A
Furnace Chamber Dimensions (m) 150x200z150 200x300x200 300x400x300
Overall Dimensions (m) 510x700m805 550x700m895 850x800x1050
Volume 4.5L 12L 36L
Gross Weight/Net Weight (EG) 135/120 192/172 295/263
Rated Power 4KW 12KY 18KW

1. GB/T 28849-2012 Laboratory Box-Type Resistance Furnaces (None)

2. GB/T 30839.43-2015 Energy consumption classification for industrial electric heating appliances — Part 43: Box-type resistance furnaces

3. GB/T 10067.44-2014 Basic technical conditions for electric heating appliances — Part 44: Box-type resistance furnaces (None)

4. GB 5959.4-2008 Safety of Electric Heating Equipment — Part 4: Special Requirements for Resistance Heating Equipment

5. GB/T 5576 — Crude Rubber, Compounded Rubber or Vulcanised Rubber of Classes M, N, O, R and U (None).

6. GB/T 9451-1988 Determination of Total Hardened Layer Depth or Effective Hardened Layer Depth of Thin Surfaces of Steel Components

7. GB/T 9451-2005 Determination of Total Hardened Layer Depth or Effective Hardened Layer Depth of Thin Surfaces of Steel Components

8. GB/T 9452-2012 Method for Determining the Effective Heating Zone of Heat Treatment Furnaces

9. GBT 9452-2023 Method for Determining the Effective Heating Zone of Heat Treatment Furnaces

10. GJ 13-1973 General Technical Conditions for Heat-Treated Components

11.  JB/T 10174-2000 Quality Inspection Methods for Shot Peening of Steel Components

12.  JB/T 10174-2008 Quality Inspection Methods for Shot Peening of Steel Components

13.  B/T 10175-2000 Quality Control Requirements for Heat Treatment

1. Over-temperature alarm  
2. Power cut-off upon door opening  
3. Earth leakage protection  
4. Rapid fuse action  
5. Earth leakage protection

1. Touchscreen controller           
2. USB port           
3. Chimney

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Shanghai Dengsheng Instrument Manufacturing Co., Ltd

Shanghai Dengsheng Instrument Manufacturing Co., Ltd. is a high-tech enterprise integrating R&D, production, sales, and service. We specialize in the manufacture of high-end laboratory equipment, including ovens, incubators, industrial furnaces, and environmental test chambers.

We boast an 8,000-square-meter modern production facility, a dedicated R&D team, 23 national patents, and ISO-9001 quality management system certification. Our solutions are widely used in cutting-edge fields such as aerospace, semiconductors, biomedicine, automotive, and new materials. We have established in-depth partnerships with top universities and industry leaders, and our products are exported to many countries and regions around the world.

Adhering to the principles of "Integrity, Innovation, and Win-Win," we are committed to becoming your trusted partner with reliable quality and dedicated service.

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