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Latest update: 26/02/2020 10:25:11

Sankei Plastics Co., Ltd.

We are experienced in manufacturing automotive lamp parts by injection molding.

We are a plastic part manufacturer established in 1964. We specialize in automotive lamp part manufacturing and sales. We have been accumulating know-how about manufacturing resin products by injection molding since our foundation. We have confidence with optical transparent resin products, such as lenses and inner lenses. We do business with Stanley Electric and Imasen Electric Industrial. We have a mold department as a member company of our group to provide integrated services from mold production to molding, inspection, quality assurance, and logistics. We have been expanding our business capacity by meeting various customer needs. We do not have any specific plans for overseas expansion, but we will expand our business globally with a focus on Asia.


[Product description] Our company has established mold production and molding technologies for the currently popular light guide lenses using LEDs as light sources. Our mold cutting technology enables mold production in steps with a minimum corner radius from 0.05 to 0.35 mm. Our molding technology can produce PC-resin light guide lenses with a flow length of about 350 mm and 5 to 10 mm in thickness. We can also produce PMMA-resin lenses with a flow length of about 450 mm and 5 to 12 mm in thickness. Our processing has a high yield rate. [Market share/Ranking] About 15 to 20% in Japan. [Major facilities and equipment] Electric injection molding machines (450-, 350-, and 180-ton).