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Nickel Plated Susbtrates (Ni-P) for computer disks and hard drives applications

Nickel Plated Substrates (Ni-P)


Nickel plated substrates (Ni-P) are made through a series of manufacturing processes such as grinding, polishing, non electrolytic nickel phosphorous plating, final polishing, and inspections. Each process is tightly monitored by a state of the art quality control system to provide one of the most demanding and stringent qualities.

Toyo Kohan - a Marubeni Sunnyvale trading partner - has been shipping these Ni-P plated disks to computer disk manufacturers around the world, enabling them to produce quality media for the computer hard drives. Toyo Kohan and Marubeni have a joint venture disk manufacturing facility (Toyo memory Technology SDN. BHD in Kulim, Malaysia.)


Ni-P Products


General Product Specifications

Material Al / Ni-P Plated Al / Ni-P Plated Al / Ni-P Plated Glass
Outer Diameter 95mm 84mm 65mm 65mm
Inner Diameter 25mm 25mm 25mm 20mm
Thickness 0.8/1.27mm 0.8mm 0.8/1.27mm 0.635mm
Flatness ≦12microns ≦10microns ≦7microns ≦7microns
Roughness 3 Angstrom
Waviness 5 Angstrom
# Values for Flatness, Roughness, and Waviness depend on measurement procedures and equipment. Please contact us for more details.
Material Al/NiP Plated Al/NiP Plated Al/NiP Plated Glass
Outer Diameter 95mm 84mm 65mm 65mm
Inner Diameter 25mm 25mm 25mm 20mm
Thickness 0.8/1.27mm 0.8mm 0.8/1.27mm 0.635mm
Flatness ≦12microns ≦10microns ≦7microns ≦7microns
Roughness 3 Angstrom
Waviness 5 Angstrom
# Values for Flatness, Roughness, and Waviness depend on measurement procedures and equipment. Please contact us for more details.
Contact Marubeni Sunnyvale

For more information on Ni-P substrates from Toyo Kohan, please contact Marubeni Sunnyvale and we will send you a full brochure.