Series connected multi melting system
Technical Characteristics
The one-to-two intermediate frequency furnace adopts the "series inverter thyristor intermediate frequency power supply technology". Although the thyristor fully controlled rectifier electric furnace is used, it does not use it for voltage regulation. It only uses it to achieve soft start and act as an electronic switch in the event of a fault to quickly cut off the power supply , In normal operation, the thyristor is always in the fully-on state, so that the grid power supply has a high power factor and reduces harmonic interference. The rectifier control circuit adopts a digital shift trigger circuit. The digital shift trigger circuit has the advantages of good repeatability, good stability, good symmetry, strong anti-interference ability, and convenient debugging. If the digital quantity setting is used, it can still realize remote control.
1.Energy saving: The power efficiency is 20% less than ordinary equipment.
2.more than 95%, no reactive power compensation device and harmonic elimination device. One power supply is accompanied by one furnace for smelting and one furnace for heat preservation and refining. The utilization rate of the transformer is high, which can save half of the transformer capacity usage cost. One for two electric furnaces, two electric furnaces can be cast at the same time, and can also be continuously supplied with molten steel for casting.
3. Low failure rate: The lower working voltage effectively guarantees the extraordinary stability of power devices such as thyristors.
4. Safety: There are few harmonics and low power grid pollution, which effectively guarantees the safety of electricity use.
5. Good starting performance: one for two electric furnaces, power is allocated at will, starting rate is 100%.
Description |
Rating |
Rated Power (KW) |
800 |
Total Input KVA |
800 |
Input Power Factor |
0.95 |
Input Voltage (Volts) |
400 |
Output Frequency (Hz) |
800 |
Output Voltage (Volts) |
800 |
Melting Temperature (°C) |
1550 |
Nominal Capacity of furnace in Kg for Steel(kg) |
1000 |
Melting Rate for Steel at 1550° C at 3500KW (Kg/Hr) |
1000 |
Lining material |
Acid or alkaline material |
Multi-protections: overcurrent, overpressure or underpressure, water pressure, phase loss, furnace leak alarm and water temperature alarm |
Yes |
Shandong Runhai Machinery Technology Co., Ltd. is located in the kite capital of China--Shandong. Weifang, is a collection of scientific research and design, manufacturing, installation and commissioning and provide technology as one of the industrial companies, engaged in precision casting equipment, heat treatment equipment development and manufacturing and sales services.

The company actively carries out the development of scientific research projects, and introduces and absorbs the advanced technology of European and American countries, has accumulated rich experience in design and manufacturing, and has trained a strong technical research and development team and after-sales service guarantee team. The company′s products are exported to Australia, Russia, Mexico, Hungary, Turkey, India, Malaysia, Indonesia, Thailand, Morocco nearly 20 countries and regions, has been praised by domestic and foreign customers.
The company′s main products are: Truck annealing furnace, forklift quenching furnace, tempering furnace, carburizing furnace, nitriding furnace, vacuum furnace, mold shell baking furnace, medium frequency furnace, precision casting equipment, sand casting equipment, shot blasting machine, cooling tower and other products.
The company always adheres to the purpose of quality first and customer first, and is willing to meet the needs of market competition and international economic globalization with high-quality products, reliable commitment and first-class service.
Q1. How is your company's product after-sales service system?
A. We have professional pre-sales and after-sales departments and can respond to you within 8 hours to resolve any technical issues.
Q2. How about the quality guarantee period?
A: 12 months, exclude irrationally operating and consumable parts.
Q3. How about your products quality?
A: CE certification available and twice test before shipping.
Q4. What's your delivery time?
A: 45 days
Q5. Are you a manufacturer or a trading company?
A: We are a factory with 10 years experience in the field.

We mainly make customized production according to customer requirements:
1. You just tell us your own requirements.
2. We design according to the parameters.
3. We Modify detail per your demand.
4. We producing on demand.
5. We delivery on time.
6. Our technical personnel guide the installation.
7. We provide 24-hour service consultation.
8. Warranty for 24 months.
9. Lifelong counseling.
10. You gave us a chance and we can earn your trust.
