electric holding furnace
Vertical immersion heater VH furnace
Comparison of three types of electric heater holding furnaces
vertical immersion heater furnace
- gThe heater can be replaced safely.
- Dewatering is possible and restarting is easy.
- Hearth sludge is easy to remove, keeping the molten metal clean.
- AI removal around the heater tube can be done easily.
- Compact and minimal surface area → reduced power consumption.
Horizontal immersion heater furnace(under heater furnace)
- The heater tubes get in the way, making it difficult to remove the hearth sludge and causing hard spots.
- There is a risk of tube breakage when restarting after removing hot water.
- AI film is attached around the tube, and the heater efficiency drops.
- There is a problem with safety when the tube is damaged, and it takes time to recover.(Tube replacement work is required for one week, and the line must be stopped.)
top heater furnace
- Because heat is applied from above, it is difficult to apply heat evenly.
- It takes some time to warm up.
- Since the atmosphere is heated, oxides (ghosts) are generated, and frequent cleaning of the furnace is practical.
- It is necessary to raise the furnace lid and replace the heater.
Immersion heater I type
A compact immersion heater featuring high output (10-35kw) and high efficiency (98%), and can be easily used as a heat source for holding furnaces and ladles.
■ Features
- High power heating 30W/㎠
- high quality metal heater
- Heating efficiency 98%
- Compact and easy to install
■ I type product specifications
| heater diameter | 20-55mm |
|---|---|
| total tube length | 500-1500mm |
| connection voltage | 45-600V |
High output immersion heater C type
A ceramic tube immersion heater with a diameter of only 32 mm.
Compact and highly efficient, it can be easily used as a heat source for a pass-type holding furnace.
■ Features
- high quality metal heater
- High thermal efficiency 98%
- Heater life is twice as long as conventional products
- Heater diameter 32mm
- Easy installation and mounting
■ C type product specifications
| heater output | 6KW | 8KW |
|---|---|---|
| power supply | AC200V | AC200V |
| internal thermocouple | Type K | Type K |
| Protection tube dimensions | Diameter 32×720mm | Diameter 32×720mm |
| Protective tube material Si3N4 | Si3N4 | Si3N4 |
| Connection pipe material | SUS304 | SUS304 |
| heat generation length | 300mm | 400mm |
| weight | 7kg | 8 kg |
High output immersion heater L type
Horizontally supported by vertical tubes, it can provide high output power even at low aluminum melt levels.
■ Features
- High power heating 30W/㎠
- high quality metal heater
- Heating efficiency 98%
- Uses high quality Japanese heater tubes
- Easy to install
- Replacement maintenance can be done in a short time
■ L type product specifications
| Heater tube diameter diameter mm | 32 | 32 | 55 |
|---|---|---|---|
| Heater tube length mm | 660 | 760 | 900 |
| vertical tube length mm | 200 to 1000 | ||
| Heater output 200V Three-phase KW750℃ | 8 | 11 | 17 |
Product comparison chart
| vertical immersion heater furnace | Horizontal immersion heater furnace | top heater furnace | |
| Amount of aluminum retained | 1,000kg (VH1000) | 1,000kg (UH1000) | 1,000kg (TP1000) |
| heater capacity | 200v 10kw x 2 | 200v 10kw x 2 | 200v 2.4kw x 6 |
| Molten metal leakage safety | ○ | △ | ○ |
| Draining hot water | ○ | × | ○ |
| Heating capacity | ○ | ○ | × |
| Ease of heater replacement | ○ | △ Cannot be replaced if the tube is damaged | × Raise the furnace lid and replace |
| Oxide generation | Few | Few | many |
| Furnace cleaning | 1 time/2 weeks | 1 time/month | 1 time/week |
| Ease of hearth cleaning | ○ | × | ○ |
| heater life | two years | 1-2 years | 1 year |
| Comprehensive evaluation | ○ | △ | × |
