Advantages
1 Standard row material and Advanced RecipeÂ
2 Standard producing process and strict quality checking
3 Trained working staffÂ
4 Manufacturing experience 20 years
Â
Â
 5  Competitive price,stable quality,quick delivery,good service Â
 Â
 Detailed specifications:
1.Size: Customized .
2.Grade:All kind of grade with N35 - N52, 35M - 50M, 35H - 48H, 30SH - 45SH,Â
                        28UH - 40UH, 30EH - 35EH, 30AH - 33AH.
3.Material:Rare earth Neodymium iron boron magnet
4.Performance: High , high coercivity, low temperature coefficient .
5.Coating:Black Nickel, Zinc, Blue Zinc, NiCuNi, NiCuNi+Epoxy,Gold, etc.
6.Application:Motor assemblies, Automobile,Wind generator,MRI,Speaker,
Sound Equipment Earphone microphone ,Sensor, Scanner, Camera Lens,Â
Embedded Object,Magnetic separators, linear actuators, assemblies, servoÂ
motors, DC motors (automotive starters), computer rigid disc drives,Â
Â
 7.Certificates:  ISO9001:2000,ROHS   Â
About Neodymium Iron Boron Magnets
  Collectively known as Neodymium Iron Boron magnets,it is alloy of the  LanthanideÂ
group of  elements that  Composed  by   neodymium,  iron,  boronand  a  few  transition
metals like Dysprosium,  Gallium .etc,  Through  these  melting ,pressing,  sintering,
machining, Coating, magnetizing processes,  to form those what we called  block,  bar,
Cubic, cylinder, ring,arc shapes.
 Â
 NdFeB magnets are available in sintered as well as bonded forms.  The bonded form
need almost no machining yet tolerance is small,  The flux of the bonded form  is up toÂ
10 MGOe  while sintered form available to reach 52 MGOe. The sintered form usuallyÂ
requires some finishing operations in order to suit mechanical tolerances.
 Plating NdFeB is a difficult process, coating,acidification,passivation each processÂ
should be acidity soft and temperature friendly . Zinc, Nickel, NiCuNi  and  Epoxy Â
plating providegood corrosion resistance  and nice appearance for NdFeB magnets.
Â
Â
Â
 All Sintered NdFeB magnets are anisotropic that can only be magnetized in the
orientation direction. Bonded magnet is isotropic and can be magnetized in anyÂ
direction  magnetizing range is from 1koe-100koe which depend on magnets'Â
size, grade and what the magnets for.Â
Â
  As the most advanced commercialized permanent magnet materials, NdFeB magnetsÂ
are available in a number of different grades that span a wide range of properties and
application requirements.Â
Â
NdFeb Magnet Chart
    Â
Grade |
Br  (MT) |
Hcb (KA/m) |
Hcj (KA/m) |
Bh (MGOe) |
TW ºC |
N-35 | 1170-1120 | Â Â Â Â Â 876 | 955 | 33-36 | 80 |
N-38 | 1220-1250 | Â Â Â Â Â 876 | 955 | 36-39 | 80 |
N-40 | 1250-1280 | Â Â Â Â Â 876 | 955 | 38-41 | 80 |
N-42 | 1280-1320 | Â Â Â Â Â 876 | 955 | 40-43 | 80 |
N-45 | 1320-1380 | Â Â Â Â Â 876 | 955 | 43-46 | 80 |
N-48 | 1380-1420 | Â Â Â Â Â 876 | 955 | 46-49 | 80 |
N-50 | 1400-1450 | Â Â Â Â Â 828 | 876 | 48-51 | 80 |
N-52 | 1430-1480 | Â Â Â Â Â 828 | 876 | 50-53 | 80 |
33Â Â M | 1130-1180 | Â Â Â Â Â 836 | 1114 | 31-34 | 100 |
35 Â M | 1170-1220 | Â Â Â Â Â 868 | 1114 | 33-36 | 100 |
38 Â M | 1220-1250 | Â Â Â Â Â 899 | 1114 | 36-39 | 100 |
40Â Â M | 1250-1280 | Â Â Â Â Â 907 | 1114 | 38-41 | 100 |
42Â Â M | 1280-1320 | Â Â Â Â Â 907 | 1114 | 40-43 | 100 |
45 Â M | 1320-1380 | Â Â Â Â Â 907 | 1114 | 43-46 | 100 |
48Â Â M | 1360-1430 | Â Â Â Â Â 907 | 1114 | 46-49 | 100 |
50Â Â M | 1400-1450 | Â Â Â Â Â 907 | 1114 | 48-51 | 100 |
33Â Â H | 1130-1180 | Â Â Â Â Â 836 | 1353 | 31-34 | 120 |
35Â Â H | 1170-1220 | Â Â Â Â Â 868 | 1353 | 33-36 | 120 |
38 Â H | 1220-1250 | Â Â Â Â Â 899 | 1353 | 36-39 | 120 |
40 Â H | 1250-1280 | Â Â Â Â 907 | 1353 | 38-41 | 120 |
42 Â H | 1280-1320 | Â Â Â Â Â 907 | 1353 | 40-43 | 120 |
45 Â H | 1320-1380 | Â Â Â Â Â 907 | 1353 | 43-46 | 120 |
46Â Â H | 1330-1380 | Â Â Â Â Â 907 | 1274 | 44-47 | 120 |
48Â Â H | 1370-1430 | Â Â Â Â 907 | 1274 | 46-49 | 120 |
30SH | 1080-1130 | Â Â Â Â Â 804 | 1592 | 28-31 | 150 |
33SH | 1130-1170 | Â Â Â Â 820 | 1592 | 31-34 | 150 |
35SH | 1170-1220 | Â Â Â Â Â 860 | 1592 | 33-36 | 150 |
38SH | 1220-1250 | Â Â Â Â 907 | 1592 | 36-39 | 150 |
40SH | 1250-1280 | Â Â Â Â Â 907 | 1592 | 38-41 | 150 |
42SH | 1280-1320 | Â Â Â Â Â 907 | 1592 | 40-43 | 150 |
42SH | 1310-1350 | Â Â Â Â Â 907 | 1592 | 42-45 | 150 |
45SH | 1320-1380 | Â Â Â Â Â 907 | 1592 | 43-46 | 150 |
28UH | 1020-1080 | Â Â Â Â Â 764 | 1990 | 26-29 | 180 |
30UH | 1080-1130 | Â Â Â Â Â 804 | 1990 | 28-31 | 180 |
33UH | 1130-1170 | Â Â Â Â Â 852 | 1990 | 31-34 | 180 |
35UH | 1180-1220 | Â Â Â Â Â 860 | 1990 | 33-36 | 180 |
38UH | 1220-1250 | Â Â Â Â Â 907 | 1990 | 36-39 | 180 |
40UH | 1240-1280 | Â Â Â Â Â 907 | 1990 | 38-41 | 180 |
28EH | 1040-1090 | Â Â Â Â Â 780 | 2388 | 26-29 | 200 |
30EH | 1080-1130 | Â Â Â Â Â 812 | 2388 | 28-31 | 200 |
33EH | 1130-1170 | Â Â Â Â Â 812 | 2388 | 31-34 | 200 |
35EH | 1170-1220 | Â Â Â Â Â 860 | 2388 | 33-36 | 200 |
38EH | 1220-1250 | Â Â Â Â Â 860 | 2388 | 36-39 | 200 |
30Â AH | 1080-1130 | Â Â Â Â Â 812 | 2785 | 28-31 | 240 |
33Â AH | 1130-1170 | Â Â Â Â Â 812 | 2785 | 31-34 | 240 |
Testing
Â
Plating |
Color | Plating Thickness | Â Working Temprature | SST Test | PCT Â Test |
NiCuNi | Bright | 15-35um | ≥200 | ≥96hr | 48hr |
Zinc | platinum like /blue |  5-15um | ≥160 | ≥48hr |  |
Epoxy | black | 15-35um | ≥120 | ≥96hr | 24hr |
HFCs (hydrofluorocarbons) are the third
generation of fluorine-based gases.
These products are categorised as having zero ODP (Ozone Depleting Potential)
and medium to high GWP (Global Warming Potential) and so offer a more
environmentally friendly alternative to CFCs and HCFCs.
HFCs are used in a wide range of refrigeration and air conditioning equipment
specifically designed for them, and as "drop
in" retrofit gases for older CFC or HCFC equipment. HFCs are also
used in selective propellant and foam blowing
applications.
A growing focus on the environmental
impact of refrigerants is fuelling demand for refrigeration solutions
that can provide satisfactory cooling performance with a lower impact on global
warming. This is propelling environmentally friendly refrigeration solutions to
the top of the corporate sustainability agenda. In addition, local legislation
is increasingly targeting refrigerant gases with high GWP.
Zhejiang Zhonglan Refrigerants Co.,Ltd offers a number of lower GWP HFC solutions, such as R134a, R404a, R406a, R407c, R410a, R507,R417a,R422d,R125,R32, etc. For new equipment purchases, we also supply a wide range of HFC alternatives. These include HC(natural refrigerants), which provide a viable, lower GWP alternative to HFCs.
HFC Refrigerant Blends,Freon Refrigeration,Blend Refrigerant Gas,Mixed Refrigerant Gas
ZHEJIANG ZHONGLAN REFRIGERATION TECHNOLOGY CO.,LTD , http://www.uiszl.com