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Resistance Furnace

Your Professional Resistance Furnace Manufacturer!

 

Jiangsu Jiuding industrial furnace technology Co., Ltd., is a young enterprise with unique ideas about the design and manufacture of industrial furnaces and heat treatment furnace. Our company is located in jiangsu danyang yellow Nian bridge economic industrial park. Company site management implementation by 8 s standard, the product with scientific design, materials, quality assurance, manufacturing details rein to coordinate, implement welding, assembly, heat preservation, the control standard, coating, uniform temperature field, this is the dominant industrial furnace is ongoing. It is absolutely necessary to provide customers with every equipment manufacturing heart, use the rest assured.

 
 
Why Choose Us

Our Factory

Jiuding have more than 90 staff and workers, and more than 60% are professional and technical personnel, in which, 1 senior engineer, 3 engineers, 5 assistant engineers and 15 technicians. Now, Jiuding have implement the 6S and ISO9001 management system comprehensively and this also lay the foundation for our company becoming the leader of furnace industry.

Product Application

Our products are widely used in heavy industry fields such as smelting, casting, forging, shipbuilding, chemical equipment manufacturing, hydropower equipment manufacturing, thermal power equipment manufacturing, nuclear power equipment manufacturing, and high-strength fastener manufacturing.

Advanced Equipment

Our company has a full range of conventional industrial furnace manufacturing equipment, and CNC plasma cutting machine, the United States fluke laser detector temperature field, wind pressure, wind speed measuring instrument, gas pressure tester, gas concentration detection alarming device, infrared thermometer.

Production Market

So far, Jiuding brand have been affirmed by all our customers and currently our sales network have reached all over the world, include: Russia, South Africa, Turkey, Saudi Arabia, UAE, Iran, India, Pakistan, Indonesia, Vietnam, Taiwan, Central Asia, etc.

 

Technical Parameters

 

Parameter name

Unit

Model

RT3-1020-6

RT3-2100-6

RT3-850-9

RT3-2880-9

RT3-880-12

RT3-1860-12

Rated Power

KW

1350

2100

850

2880

880

1860

Rated voltage

V

380

Frequency

Hz

50

Number of phases

phase

3

Rated Temp.

℃

650

950

1200

Operating Temp.

℃

650

950

1100

Furnace size

D

mm

4700

10500

6000

13000

6000

16000

W

mm

4500

4000

3000

3000

3000

2500

H

mm

2500

3200

2500

3600

2000

2500

Heating element connection

 

YYYYYY

YYYYYYYY

YYYYYY

YYYYYYYY

YYYYYY

YYYYYYYY

Empty furnace heating time

h

4.5

4.5

4

4.5

4

4.5

Temperature control accuracy

℃

±1-2

Furnace temperature uniformity

℃

±10

Max. load capacity

Kg

32000

90000

28000

100000

28000

80000

Weight

Kg

26000

39000

25000

45000

25000

35000

 

Advantages of Resistance Furnace
Car-type Resistance Furnace
High Temperature Trolley Resistance Furnace
Box Type Resistance Furnace
Large Pit Type Resistance Furnace

High Thermal Efficiency (50-80%)

Resistance furnaces convert electrical energy into heat with minimal losses, achieving thermal efficiencies between 50% and 80%.

This high efficiency reduces energy waste, making them cost-effective over time despite their high power consumption.

 

Precise Temperature Control

Equipped with automated control units, resistance furnaces can maintain and circulate temperatures with high accuracy.

This feature is critical for processes requiring consistent and specific heating conditions, such as metal hardening or laboratory experiments.

 

Suitable for Demanding Applications

Resistance furnaces are designed to handle demanding workpieces, including those requiring high temperatures (exceeding 1500°C).

Their robust construction and advanced controls make them ideal for industries like mining, metallurgy, and materials science.

 

Good Working Conditions

The sealed design of resistance furnaces creates a vacuum or controlled atmosphere, preventing heat loss and maintaining a stable environment.

This reduces exposure to harmful emissions and improves safety for operators.

 

Long Furnace Life

Resistance furnaces are built to last, with durable materials and components that withstand high temperatures and frequent use.

This longevity reduces the need for frequent replacements, lowering long-term operational costs.

 

Oxidation and Hardening Prevention

The gaseous medium inside the furnace eliminates oxidation, which is crucial for processes involving metals and alloys.

This feature ensures the integrity of materials being heated, particularly in mining and metallurgical applications.

 

Versatility in Applications

Resistance furnaces can handle a wide range of materials and processes, from small-batch alloy melting to large-scale industrial heating.

Their adaptability makes them suitable for diverse industries, including research, manufacturing, and mining.

 

Fast Heating and Uniform Temperature Distribution

Some resistance furnaces, such as graphite resistance furnaces, offer fast heating speeds and excellent temperature uniformity.

This ensures consistent results and reduces processing time, enhancing productivity.

 

Ease of Maintenance and Operation

Resistance furnaces are designed for ease of use, with straightforward controls and minimal maintenance requirements.

This reduces downtime and operational complexity, making them a practical choice for continuous industrial processes.

 

Applications of Resistance Furnace
 

Heat Treatment of Metals

Resistance furnaces are widely used for annealing, hardening, and tempering metals. Their precise temperature control results in consistent material properties, reducing defects and improving strength. For example, automotive component manufacturers rely on resistance heat treatment to meet strict quality standards. Adoption rates are high due to the furnaces' speed and repeatability, with outcomes measured in reduced processing times and improved product durability.

 

Ceramic and Glass Firing

In ceramics, resistance furnaces enable uniform firing of tiles, pottery, and advanced ceramic components. They help achieve consistent color, strength, and porosity. Glass manufacturers use resistance furnaces for melting and annealing, ensuring clarity and structural integrity.

 

Semiconductor and Electronics Manufacturing

Electronics industries utilize resistance furnaces for processes like wafer annealing and component testing. The high precision and cleanliness of these systems are critical for maintaining device performance. Adoption is driven by the need for ultra-clean environments and tight process controls, resulting in higher yields and lower defect rates.

 

Laboratory and R&D Applications

Research labs employ resistance furnaces for material testing, alloy development, and experimental processing. Their flexibility allows for custom temperature profiles and controlled atmospheres.

 

Environmental and Waste Management

Resistance furnaces are increasingly used for waste incineration and hazardous material treatment. Their ability to operate at high temperatures with minimal emissions makes them suitable for environmentally sensitive applications. Adoption is growing in waste-to-energy projects, where compliance with environmental standards is mandatory, and outcomes focus on safe, efficient waste processing.

 

 
Work method of Resistance Furnace

Resistance furnace is mainly composed of furnace body, heater, temperature control system and so on. It works as follows:

Heater heating:

The heater of the resistance furnace is a heating body, which is generally made of resistance alloy wires. When energized, Joule heat is generated inside the resistance wire, the heater heats up, and the objects in the furnace are also heated.

Temperature control:

The temperature control of the resistance furnace generally adopts the PID control algorithm. The temperature signal is sensed by the temperature sensor and compared with the set value to obtain the error value in the PID control algorithm, and then the heating power is adjusted according to the error value, so that the temperature is controlled within the set temperature range.

Heat transfer:

The material of the resistance furnace body is usually ceramic or metal, which has good thermal conductivity and can quickly transfer the heat generated by the heater to the objects in the furnace. During the heating process, heat is transferred through air convection, radiation, etc., so that the objects in the furnace reach the required temperature.

Maintenance and maintenance:

During the use of the resistance furnace, it needs to be cleaned and maintained regularly. For the maintenance of the heating element of the resistance furnace, it is necessary to pay attention to avoid oxidation and fusing. For the inside of the furnace, it needs to be cleaned regularly to avoid dust and impurities from affecting the heating effect.

 

Packaging and Shipping

Trucking:

For local or short-distance shipments, a flatbed truck is typically used. Use heavy-duty strapping or chains to secure the stove to the truck bed. Ensure the strapping is properly tightened and has no slack. Place padding between the stove and the truck bed to prevent scratches and damage.

Containerizing:

For long-distance or overseas shipments, use a container. Inside the container, use wooden blocks or brackets to support the stove and prevent it from moving.

 

 

Our certificates

 

productcate-1-1

 

FAQ

Q: What is a resistance furnace?

A: The resistance furnaces or ovens are the insulated closed chambers with a provision for ventilation. The resistance furnaces or ovens are used for heat treatment of metals, commercial or domestic heating, pottery work, etc. The different elements of the furnace can be energies from DC or AC supply of the rated voltage.Mar 16, 2022

Q: What are the types of temperature control of resistance furnace?

A: Principles of Temperature Control in Resistance Furnaces:
The primary methods include: Voltage Control: Adjusting the voltage supplied to the heating elements using transformers, auto-transformers, or induction regulators. Resistance Control: Varying the resistance of the heating elements to regulate heat generation.

Q: What is the difference between a resistance furnace and an induction furnace?

A: Resistance furnaces are generally simpler and more cost-effective for steady-state heating, while induction furnaces offer faster heating, better energy efficiency, and precise temperature control, making them ideal for applications requiring rapid or localized heating.

Q: How does a resistance furnace work?

A: A resistance furnace operates by converting electrical energy into heat energy through the Joule heating effect, where electric current passes through a conductor (resistor) to generate heat. This heat is then used to heat materials or workpieces placed inside the furnace. The furnace can be designed for direct heating, where the material itself acts as the resistor, or indirect heating, where heating elements or conductive media transfer heat to the material via conduction, convection, and radiation.

Q: How do I test a heating element?

A: Shut off the power, then use a multimeter to test for electrical continuity across the element's terminals. A reading of about 10-20 ohms indicates it is working. If the reading is zero or "OL" (overload), the element is likely faulty.

Jiangsu Jiuding Industrial Furnaces Technology Co., Ltd. is one of the most professional resistance furnace manufacturers and suppliers in China, specialized in providing high quality customized products. We warmly welcome you to wholesale resistance furnace for sale here from our factory. For price consultation, contact us. Car-type Resistance Furnace, High Temperature Trolley Resistance Furnace, Large Pit Type Resistance Furnace

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