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Latest update: 30/11/2016 18:06:38

Hiraya Seisakusho Co., Ltd.

We are a specialist in centerless grinding and precision machining of FRP round bars.

Our company manufactures the tips of fishing rods, industrial parts, and electric equipment parts from round bars of fiber reinforced plastic (FRP) using centerless grinding, precision machining, and shaping. FRP has many features, such as being flexible, lightweight, electrically conductive, and corrosion resistant. We have the top market share in Japan for centerless grinding for FRP cylindrical and conical machining using centerless grinding. We are in a niche market with few competitors, but this is an important field for manufacturing in Japan. We can cover everything from round bar and pipe molding to precision machining, coating, and assembly. 

Main image

Other presentation

[Company strength]
Few companies manufacture industrial and electric parts from fiber reinforced plastic (FRP) using centerless grinding, and mainly precision machining and shaping. This is a niche market but an important processing field for Japan. Fiber reinforced plastic (FRP) has many features. It is flexible, lightweight, electrically conductive, and corrosion resistant. We cover a series of processes with the help of a cooperating company, from forming round or cylindrical bars (pipes) to precision machining, coating, and assembly.

[Business description]
Our company specializes in centerless grinding of industrial and electric parts made of fiber reinforced plastic (FRP), and mainly precision processing and shaping. We also specialize in machining round and cylindrical bars (pipes) made of resin.
Our business includes high-accuracy NC centerless grinding, and FRP rod cutting using precision cutting machines with tolerance of ±0.08. We offer drilling and milling of FRP rods up to 3,000 mm long using NC milling machines or portable NC drilling machines. We also perform FRP pipe internal threading and surface square threading using dedicated machines for threading, flattening using flattening machines with special blades, and grooving.

Machining and manufacturing

[Strength of products/technologies]
We manufacture industrial and electric equipment parts using various kinds of machining. We perform high-precision centerless grinding using NC centerless grinding machines. This produces parts with a wide range of dimensions, from 0.3 to 100 in outside diameter and up to 4,000 mm in length. We meet various user requests with our outside diameter polishing, usually with a tolerance of ±2/100, and precision mirror polishing with a tolerance of ±5/1000. We can cut FRP rods with high accuracy using precision cutting machines. Our precision cutting tolerance is ±0.08, although this depends on the work length and diameter. We specialize in machining round and cylindrical bars (pipes) made of resin, so our all machine tools have been altered for resin treatment. We also have measuring microscopes and surface roughness measuring instruments to complete our quality management. We create even single experimental parts. Feel free to consult us. 

[Representative's message]
We will establish further machining technologies for FRP, which is a new material that has a great deal of potential. We will not be committed to conventional uses in the fields of electronic equipment, robotics, medical equipment, aircraft equipment, and leisure. We will develop new uses. We will actively enter new markets with an emphasis on meeting customer needs.

[Company structure for market development/overseas expansion]
We will focus on parts for trial manufacturing and research that require high-level technologies and secure major companies in Japan as our customers. The president will take the lead in acquiring customers for our company.

[Market share/Ranking]
Cylindrical and conical machining of fiber reinforced plastic (FRP) using centerless grinding: Top market share.

[Awards and media coverage]

Wakayama Prefecture Information Center, "Introduction of Vibrant Local Companies" (FY2009).

This company is recommended by the following support organizations.

Kansai Head Office, SMRJ