China Vacuum Annealing Furnace Suppliers | Factory for Metals/Silicon Steel Heat Treatment

Our Vacuum Annealing Furnace is expertly designed for the heat treatment of metals, such as silicon steel and stainless steel, as well as amorphous alloys and magnetic materials. Operating in a vacuum atmosphere, this furnace effectively prevents oxidation and contamination from impurities during the annealing process, ensuring the utmost purity of materials, With a temperature range of RT-1200℃ and ±5℃ control accuracy, it allows for precise tuning of processes to relieve internal stresses, enhance material toughness, and optimize critical magnetic properties, especially for silicon steel cores. Our intelligent control system facilitates batch processing, reduces cycle times, and adheres to industrial standards for sectors including electrical, automotive, and machinery, As a leading manufacturer in China, we are dedicated to providing high-quality vacuum annealing furnaces. We pride ourselves on being a trusted supplier in the industry, providing reliable solutions tailored to meet the demands of various applications. Choose our factory for your heat treatment needs and experience the advantages of advanced technology and superior craftsmanship

Product Description

Product Specification

Furnace typeHorizontal signal room
Effective size of inner liner1000x1100x2200mm (W)x(H)x(L)
Effective size of inner liner (Large)1200x1200x2600mm (W)x(H)x(L)
Note: Rated furnace capacity 10000KG, Power 180KW, vacuum unit: 2X+70 pumps + 150 Roots pumps.
Max loading capacity5000 kg
Maximum furnace temperature950℃ (900℃ / 800℃–850℃ is enough for your material)
Limit vacuity100 Pa
Pressure rising rate<50 Pa/h
Air exhausting time30 min (Vacuum 400 Mpa)
Heating power120 kW (3×40 kW)
Temperature uniformity≤±2℃ (Insulation)
Temperature of furnace surfaceRoom temperature + 35℃
Temperature Points3
Temperature control methodAutomatic by program
Operation modeManual (Furnace door)
Cooling water capacity10~12 T/h (Tons per hour)

Key Advantages

🛡️ 1. Oxidation & Contamination Prevention

Operates in a high-vacuum atmosphere, completely isolating materials from air during annealing. This eliminates oxidation and decarburization, ensuring original purity.

🎯 2. Precise Temperature Control

Wide temperature range (RT–1200℃) with ±5℃ control accuracy. Precise tuning enhances toughness and optimizes magnetic properties for energy efficiency.

⚙️ 3. Strong Material Adaptability

Suitable for metals (stainless steel, carbon steel), amorphous alloys, and magnetic materials across electrical and automotive sectors.

4. Efficient & Safe Operation

Intelligent systems automate temperature and vacuum monitoring, shortening cycles by 20%+. Equipped with comprehensive safety alarms and protection.

Product Display

Vacuum Annealing Furnace 1
Vacuum Annealing Furnace 2
Vacuum Annealing Furnace 3
Vacuum Annealing Furnace 4

Industrial Applications

1 Silicon Steel & Magnetic Material Processing

Essential for annealing grain-oriented (GO) and non-oriented (NGO) silicon steel cores. The vacuum environment eliminates oxidation and optimizes grain orientation, directly enhancing permeability and lowering core loss for transformers and motors.

2 Metal Component Manufacturing (Automotive & Machinery)

Performs vacuum annealing for high-strength parts like transmission components and precision gears. It relieves internal stress, prevents cracking, and improves fatigue resistance, extending the service life of heavy machinery components.

3 Amorphous Alloy & Special Material Treatment

Processes fragile amorphous alloy cores and rare metals like titanium. The vacuum prevents oxidation, maintains unique atomic structures, and stabilizes magnetic properties for high-tech aerospace and electrical applications.

Frequently Asked Questions

QWhat is the maximum loading capacity of this vacuum annealing furnace?
The standard model supports a maximum loading capacity of 5,000 kg. An upgraded configuration is also available with a capacity of 10,000 kg.
QWhat materials can be processed in this furnace?
It is suitable for silicon steel (GO & NGO), amorphous alloys, stainless steel, carbon steel, titanium alloys, and other magnetic or rare metal materials.
QWhat vacuum level does the furnace achieve?
The furnace achieves a limit vacuity of 100 Pa with a pressure rising rate of less than 50 Pa/h. Air exhausting time is approximately 30 minutes.
QHow accurate is the temperature control?
It offers a range up to 1200℃ with a control accuracy of ±5℃ and temperature uniformity of ≤±2℃ during insulation.
QWhat safety features are included?
Equipped with overheating protection, vacuum leakage alarms, and pressure relief devices for stable, low-risk operation.
QHow does it improve production efficiency?
The intelligent control system and batch processing capabilities reduce annealing cycle times by 20% or more compared to traditional furnaces.

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