Non-contact Style

PERMANENT MAGNET TYPE
ALUMINUM CHIP
MELTING SYSTEM

The permanent magnet type melting system has great
advantages including low running cost, maintenance-free,energy saving, easy operation and space saving design
when compared to electromagnetic induction agitation
systems or machine agitation systems.

PERMANENT MAGNET TYPE ALU
We have achieved non-contact molten metal

Permanent magnet
is installed underthe material charging hole.

Actualization
Aluminum chip
melting system
bynon-contact molten
metal agitation

Heating andholding chamber

ActualizationExcellent circulationof molten metal

Advantages of molten metal agitation

1Improvement ofmolten metal quality

Homogenization of molten
metal components
Homogenization temperature (±2°C) of molten metalof yield rate
(98% or more)
2 Improvement

3 Improvement of energy consumption
4 Inhibition of oxide generation
operation lifeof refractories
5 LongPurpose• Melting of aluminum chips, machining chips, UBC
and solid biscuit• Powerful circulation makes the unit perfect for use
as a furnace for the adjustment of composition ofmolten metal.

Sample Installation
Molten Metal Agitation Unit.
(Vortex chamber)

Illustration
Charging of Aluminum Chip

Permanent Magnet Unit

Aluminum Chip Melting

UMINUM CHIP MELTING SYSTEM
agitation by employing a permanent magnet.

The permanent magnet type melting system has great advantages including low runningcost, maintenance-free, energy saving, easy operation and space saving design whencompared to electromagnetic induction agitation systems or machine agitation systems.

This system has been a commercial realization through a partnership with Zmag.
Zmag has developed the world’s first non-contact style permanent magnet type aluminum chip melting system.

Advantages of molten metal agitation❶● Improvement of molten metal quality❸● Improvement of energy consumption• Homogenization of molten metal components
Powerful circulation makes the adjustment of composition easy.
Component segregation can be adjusted extremely small for both
circumferential direction and depth direction.
Perfect for use as a furnace for the adjustment of compositionof molten metal• Homogenization temperature (±2°C) of molten metal
Heat transfer volume from the burner is improved by the circulation
function. Molten metal temperature can homogenize for both thecircumferential direction and depth direction.

❷● Improvement of yield rate (98% or more)
Charged melting materials of vortex chamber can keep 98% ormore yield rate because materials will be convoluted at once into
molten metal without oxidation.

Other features

Gas consumption is cut by 20% by homogenization of molten
metal temperature and atmosphere temperature. (Comparisonwith our products)❹● Inhibition of oxide generation
Generation of oxide can be inhibited. (Homogenization of molten
metal temperature can prevent overheating of molten metal andtherefore inhibit molten metal oxidation.)❺● Long operation life of refractories
Refractories can be long operation life. (Homogenization of molten
metal temperature can prevent overheating of molten metal andtherefore inhibit refractory reduction.)

Cost performance• Circulation power can control stepless adjustment andmaintain stable power.
• Continuous melting and unmanned operation is possible.
Materials can be melted continuously without need for monitoring
operators.

• The molten metal agitation unit can be installed as an extension for the existing melting and holding furnace.

• Cost performance of aluminum chip reclamation with ourpermanent magnet type aluminum chip melting system*The numerical values below are approximate calculations
and will differ according to conditions of customer use.
Processing volume
300 kg/hr
500 kg/hr(1,150 ton/year)(1,920 ton/year)
Comparison with recla¥60,700,000/year ¥148,400,000/year
mation ingot purchase
Comparison with molten
metal purchase¥83,700,000/year ¥186,800,000/year

Comparison with traditional chip melting system
Low running cost

Maintenance-freeEasy operation• Unnecessary spare parts (consumable goods) andmaintenance work
Electromagnetic induction agitation system requires spare parts
including water cooling device, coil etc. and maintenance work.
Machine agitation system requires spare parts including impeller,
pump etc. and maintenance work.
Energy saving• Power consumption about 1/10 (Compared withelectromagnetic induction agitation system)

Changes of internal furnace environment via molten metal agitation
1000˚C

Atmosphere Temp.
Molten Metal Temp.
Exhaust Gas Temp.

3 hr900˚C• Molten metal circulation can be trouble-free operation atthe touch of a button thanks to the simple configuration.
Space saving design• Smaller footprint
About a 50% reduction in footprint size is possible because
our heating and holding chamber has concomitant vortex
chamber only. (Compared with electromagnetic induction
agitation system or machine agitation system)

Specification List
Type

PM200

Processing Volume – 200 kg/hr
Electric Power800˚C

2.2 kW

PM300

PM500

PM1000– 300 kg/hr– 500 kg/hr– 1000 g/h

3.7 kW

5.5 kW

11 kW*Detailed specifications will be decided on order

700˚COptions
600˚C500˚C

Without moltenmetal agitation

With molten
metal agitation
By Nihon Kohnetsu Industrial Co, Ltd.

(1) Regenerative Burner (Gas consumption: 35% cut — compared withgas burner)(2) Non-contact type level sensor (Automatic control of melting volume,Molten metal volume indication by ultrasonic wave)(3) Automatic air-to-fuel ratio control

Latest Technologies and Good Faith
Experienced Technology & Consistent Sincerity
All for the customer
We, NIHON KOHNETSU INDUSTRIAL CO., LTD., meet theneeds of the customers through developing, designing,
manufacturing and maintaining thermal equipment.
We strive for continuous improvement of our businessactivities while considering the environment and contributing
to local communities, the global environment, andaggressive challenge of our employee’s affluent, healthy life.

ProductsMelting Furnace

Heat Treatment Furnace① Tower Type Centralized Melting Furnace① T-4, T-5, T-6 Heat Treatment Furnace② Pressure Type Pouring Holding Furnace② Batch Type Heat Treatment Dual

③ I.R. Type Dosing Melting Furnace④ Immersion Melting Furnace

Furnace③ Tray-less type Heat Treatment Furnace

Holding Furnace

Industrial Equipment/Molding Equipment① Immersion Gas Burner Type Holding① Shell Machine

Furnace② Under Heater Type Holding Furnace③ Pressure Type Pouring Holding Furnace② Mold (Die) Heating Equipment③ Used Sand Reclamation Equipment④ Molding Sand Heating Equipment④ Under Heater Type LP Holding Furnace

Business partner

URL

http://nihonkohnetsu.co.jp/■HEAD OFFICE

5-19-16 Biwajima, Nishi-Ku, Nagoya 451-0053 Japan
TEL: +81-52-521-5411 FAX: +81-52-521-5415■TOYOTA OFFICE

51-9 Higashiura, Takaoka, Toyota 473-0933 Japan
TEL: +81-565-52-5151 FAX: +81-565-53-1515■GROUP COMPANY
N.K.T. CO., LTD.
5-19-16 Biwajima, Nishi-Ku, Nagoya 451-0053 Japan
TEL: +81-52-523-1301 FAX: +81-52-521-5415
OVERSEAS CORPORATION (JAPANESE STAFFS ARE STATIONED)■(CHINA) KOHNETSU INDUSTRIAL CO., LTD.

Shipu Original Creative Industrial Area Maxiang Village
Qiandeng Town Kunshan City Jiangsu, 215343 China
TEL: +86-512-5740-8613 FAX: +86-512-5740-8623■(THAILAND) NIHON KOHNETSU (THAILAND) CO., LTD.

No.5, 8th Floor, 803 Room, Sittivorakit Bldg., Soi Pipat, Silom Rd.,
Bangrak, Bangkok 10500 ThailandTEL: +66-2-266-8663 FAX: +66-2-236-8169■(INDIA) NIHON KOHNETSU INDIA PVT., LTD.

#404, 4th-Floor, Time Tower, M.G. Road, Gurgaon-122002, Haryana, India
TEL: +91-124-438-1870

Zmag Ltd.