China Vacuum Annealing Furnace Suppliers | Factory for Metals/Silicon Steel Heat Treatment
Product Specification
| Furnace type | Horizontal signal room |
| Effective size of inner liner | 1000x1100x2200mm (W)x(H)x(L) |
| Effective size of inner liner | 1200x1200x2600mm (W)x(H)x(L) Note: Rated furnace capacity 10000KG, Power 180KW, vacuum unit: 2X+70 pumps + 150 Roots pumps, other technical requirements are the same. |
| Max loading capacity | 5000 kg |
| Maximum furnace temperature | 950℃ （900℃ / 800℃–850℃ is enough for your material） |
| Limit vacuity | 100 Pa |
| Pressure rising rate | ＜50 Pa/h |
| Air exhausting time | 30 min (Vacuum 400 Mpa) |
| Heating power | 120 kW （3×40 kW） |
| Temperature uniformity | ≤±2℃ (Insulation) |
| Temperature of furnace surface | Room temperature + 35℃ |
| Temperature Points | 3 |
| Temperature control method | Automatic by program |
| Operation mode | Manual (Furnace door) |
| Cooling water capacity | 10～12 T/h (Tons per hour) |
Advantages
-
🛡️
1. Oxidation & Contamination Prevention
Operates in a high-vacuum atmosphere, completely isolating materials (e.g., silicon steel, amorphous alloys) from air during annealing. This eliminates oxidation, decarburization, and impurity adsorption, ensuring the original purity and surface quality of materials—critical for high-performance components like silicon steel cores.
-
🎯
2. Precise Temperature Control
Offers a wide temperature range (RT–1200℃) with ±5℃ control accuracy. It enables precise tuning of annealing processes to target specific material improvements: relieving internal stress, enhancing toughness, and optimizing magnetic properties to boost energy efficiency of magnetic materials.
-
⚙️
3. Strong Material & Industry Adaptability
Suitable for heat treatment of diverse materials—metals (stainless steel, carbon steel), amorphous alloys, and magnetic materials. It meets annealing demands across electrical, automotive, and machinery sectors with flexible process parameter adjustment for different specifications.
-
✅
4. Efficient & Safe Operation
Integrates intelligent control systems for automated temperature ramping, vacuum monitoring, and batch processing—shortening annealing cycles by 20%+ vs. traditional furnaces. Equipped with overheating protection, vacuum leakage alarms, and pressure relief devices, ensuring stable, low-risk long-term operation.
Product Display
Application
1
Silicon Steel & Magnetic Material Processing
It is essential for annealing grain-oriented (GO) and non-oriented (NGO) silicon steel cores (used in transformers and motors). Under vacuum, it eliminates oxidation, optimizes silicon steel's grain orientation, and reduces internal stress—directly enhancing magnetic permeability and lowering core loss. This ensures the energy efficiency of final electrical products (e.g., low-loss transformers, high-performance motors) meets industrial standards.
2
Metal Component Manufacturing (Automotive & Machinery)
For high-strength metal parts (e.g., automotive transmission components, precision mechanical gears) and stainless steel products, the furnace performs vacuum annealing to relieve internal stress caused by forging, casting, or machining. This prevents deformation/cracking during subsequent processing or use, improves material toughness and fatigue resistance, and extends the service life of components—critical for automotive and heavy machinery reliability.
3
Amorphous Alloy & Special Material Treatment
It processes amorphous alloy cores (for amorphous transformers/inductors) and rare metal materials (e.g., titanium alloys). The vacuum environment avoids oxidation of fragile amorphous alloys during annealing, maintains their unique atomic structure, and stabilizes magnetic properties. For rare metals, it ensures surface purity, laying the foundation for their application in high-tech fields (e.g., aerospace precision parts).
❓
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 larger inner liner (1200×1200×2600mm) and a rated furnace capacity of 10,000 kg, powered at 180 kW.
QWhat materials can be processed in this vacuum annealing furnace?
The furnace is suitable for a wide range of materials including silicon steel (GO & NGO), amorphous alloys, stainless steel, carbon steel, titanium alloys, and other magnetic or rare metal materials. It serves industries such as electrical, automotive, aerospace, and precision machinery.
QWhat vacuum level does the furnace achieve, and how long does it take to evacuate?
The furnace achieves a limit vacuity of 100 Pa with a pressure rising rate of less than 50 Pa/h. The air exhausting time to reach 400 Mpa vacuum is approximately 30 minutes.
QHow accurate is the temperature control, and what is the operating temperature range?
The furnace offers a temperature range from room temperature up to 1200℃ with a control accuracy of ±5℃ and temperature uniformity of ≤±2℃ during insulation. For most silicon steel and amorphous alloy applications, 800℃–950℃ is typically sufficient.
QWhat safety features are built into the vacuum annealing furnace?
The furnace is equipped with comprehensive safety systems including overheating protection, vacuum leakage alarms, and pressure relief devices. It complies with industrial safety standards and features an intelligent control system for automated monitoring, ensuring stable and low-risk long-term operation.
QHow does this vacuum furnace improve production efficiency compared to traditional furnaces?
The integrated intelligent control system enables automated temperature ramping, real-time vacuum monitoring, and batch processing capabilities. This reduces annealing cycle times by 20% or more compared to conventional furnaces, significantly improving throughput and reducing energy consumption per cycle.