CB-W20H5L50D8/D4 Neodymium Magnet, 50x20x5mm with countersunk hole d8/4 Block Magnet

Item No.: ALB-CB-W20H5L50D8/D4
Material: NdFeB, Grade N42
Shape: Block
Dimension: 50x20x5mm with countersunk hole d8/4
Tolerances: ±0.1mm x ±0.1mm x ±0.1mm
Weight: 37.500g
Grade: N42
Coating: Ni-Cu-Ni (Nickel)
Pull Force(lbs): test value
Surface Field(Gauss): test value
Magnetization direction: Through Thickness
Max Operating Temp: 80ºC
Product Drawing: PDF drawing of ALB-CB-W20H5L50D8/D4 · JPEG drawing of ALB-CB-W20H5L50D8/D4

Other Grade B-W50H20L5 Neodymium Magnets (50x20x5mm with countersunk hole d8/4):

Grade Item No. Product Name Pull Force Inquiry
N35 ALB-B-W50H20L5-N35 B-W50H20L5-N35 Neodymium Magnets 20.81 lbs (9.46kg) Inquiry
N38 ALB-B-W50H20L5-N38 B-W50H20L5-N38 Neodymium Magnets 20.81 lbs (9.46kg) Inquiry
N40 ALB-B-W50H20L5-N40 B-W50H20L5-N40 Neodymium Magnets 22.57 lbs (10.26kg) Inquiry
N42 ALB-B-W50H20L5 B-W50H20L5 Neodymium Magnets 24.77 lbs (11.26kg) Inquiry
N45 ALB-B-W50H20L5-N45 B-W50H20L5-N45 Neodymium Magnets 26.29 lbs (11.95kg) Inquiry
N48 ALB-B-W50H20L5-N48 B-W50H20L5-N48 Neodymium Magnets 27.86 lbs (12.66kg) Inquiry
N50 ALB-B-W50H20L5-N50 B-W50H20L5-N50 Neodymium Magnets 28.66 lbs (13.03kg) Inquiry
N52 ALB-B-W50H20L5-N52 B-W50H20L5-N52 Neodymium Magnets 29.48 lbs (13.40kg) Inquiry
N42SH ALB-B-W50H20L5SH B-W50H20L5SH Neodymium Magnets 24.77 lbs (11.26kg) Inquiry

High Temperature B-W50H20L5 Neodymium Magnets (50x20x5mm with countersunk hole d8/4) are also available:

Neodymium Material Type Maximum Operating Temp Curie Temp
N (N35-N52) 176°F (80°C) 590°F (310°C)
NM (N35M-N52M) 212°F (100°C) 644°F (340°C)
NH (N33H-N52H) 248°F (120°C) 644°F (340°C)
NSH (N30SH-N50SH) 302°F (150°C) 644°F (340°C)
NUH (N28UH-N48UH) 356°F (180°C) 662°F (350°C)
NEH (N28EH-N48EH) 392°F (200°C) 662°F (350°C)
NAH (N28AH-N35AH) 428°F (220°C) 662°F (350°C)

The Thermal Characteristics listed above are values commonly associated with each magnet's grade or material.  Actual performance in your application may vary with other factors, including the shape of the magnet, the Permeance Coefficient or load line, and how it is used in a circuit.  

B-W50H20L5 Neodymium Magnets (50x20x5mm with countersunk hole d8/4) with other Coating are also available:

Coating Type Overall Thickness Salt Spray Test Pressure Cooker Test
Ni-Cu-Ni (Nickel) 15-21 μm 24 hours 48 hours
NiCu + Black Nickel 15-21 μm 24 hours 48 hours
NiCuNi + Epoxy 20-28 μm 48 hours 72 hours
NiCuNi + Gold 16-23 μm 36 hours 72 hours
NiCuNi + Silver 16-23 μm 24 hours 48 hours
Zinc 7-15 μm 12 hours 24 hours

Each individual layer of Nickel and Copper are 5-7 μm thick. The Gold and Silver Coating layers are 1-2 μm thick. Test results shown to allow comparison between Coating options. Performance in your application under your specific test conditions may vary. Salt Spray testing conducted with a 5% NaCl solution, at 35°C. Pressure Cooker Test (PCT) conducted at 2 atm, 120°C at 100% RH.

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