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Kinoshita Seisakusho Co., Ltd.

Manufacturing Industry

Kiyoshi KINOSHITA (Mr.)
Year established
10,000,000 yen
502,000,000 yen
Postal (zip) code
Company address
4-11-39, Ozu, Minami-ku, Hiroshima-shi
Corporate picture
Company PR
For about 40 years, we have been producing ductile cast iron (mainly sheaves and wheels), and we are working on opening markets for defect-free thin-walled products as well as demanding machine tool parts (spindle head, etc.) lately. Since you can clean molten metal with our self-developed Kinoshita electric arc furnace, you can minimize damage generation and consistently produce ductile cast iron that is homogeneous to the inside. You can also cast thin-walled products thanks to high fluidity provided by our electric arc furnace. Also, we participate in the development of manganese removal device as a measure for reusing multicomponenting iron scrap (for example manganese, high tensile strength steel). We also propose refining processes combining Kinoshita electric arc furnace and manganese removal device, and design sales.
Picture 1

We supports wide varieties of specs of various sheaves and our services are also available to you with quick turn around time and at low cost even when you are ordering in a non-standard small lot.

Picture 2

We can manufacture thin-walled (from 2mm) ductile cast iron. We also have experiences in producing exhaust manifolds as heat-resistant cast iron product.

Major Products
Vehicle wheels
Heat-resistant cast parts
Cast parts for general industrial use
Major Customers
IHI Corporation
Sumitomo Heavy Industries Material Handling Systems Co.,Ltd
Mitsui Engineering & Shipbuilding Co.,ltd.
Takisawa Machine Tool Co., Ltd.
Makino Milling Machine Co.,Ltd
Major Facilities/Equipment
KS-type electric furnace 1
 Melting amount: 1.5 T/hr (developed and patented by our company) continuous-tapping type
Automatic greensand casting line 2
 Frame size: 800 x 900 x 200 (1 line), 1200 x 1300 x 255 (1 line)
Furan self-hardening casting line 1
 Maximum casting weight: 3 tons, no size limit
NC lathe 2
 Swing 910 F x 1500 L (1 unit) Swing 520 F x 450 L (1 unit)
Horizontal Machining Center 1
 Travel (X/Y/Z): 560 x 640 x 640
Technology Employed
Steel industry
Super clean liquid metal generating technology by self-developed Kinoshita electric arc furnace
Steel industry
Small lot orders and quick delivery are also available supported by self-developed large automatic molding line.
Steel industry
Self develop all melting equipments, pouring equipments, molding equipments, and sand processing equipments, and control program.
Steel industry
All you have to do is to just provide us major dimensions, then we can draft, manufacture and assembly sheaves and wheels, since we have abundant manufacturing experience.
Primary Area of Technical Expertise

Self-developed Kinoshita electric arc furnace that enables homogeneous iron castings with less internal defect, and thin-walled castings.

Future Business Challenges
From designing to manufacturing of sheaves and wheels.
Expanding distribution channels of high quality thin-walled cast iron.
Develop, manufacture and distribute heat-resistant cast iron product.
Design and distribute high quality cast iron manufacturing process.
Future Technical Challenges
Steel industry
Consistent manufacturing technology of high silicon cast iron for heat-resistant material.
Steel industry
Further development of molten metal refining technology that can reuse wide range of iron scrap materials.

Refining Method for Refining Cast Iron and Refining Apparatus (Japanese Unexamined Patent Application Publication No. 2010-248585)
Spheroidal Graphite Cast Iron and It's Manufacturing Method (Japanese Unexamined Patent Application Publication No. 2009-221528)

History of Adopted Research and Development Project
2006 Adopted Strategic Core Technology Advancement Program
2009 Adopted Strategic Core Technology Advancement Program
2013 Adopted New Business Activity Promotion Support Grant

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