Last updated : 02/19/2024
OTA CHUZOSHO CO., LTD.
- President
- Yoshio OTA (Mr.)
- Year established
- 1923
- Capital
- 10,000,000 yen
- Sales
- 2,400,000,000 yen
- Employees
- 81
- Postal (zip) code
- 733-0021
- Company address
- 3-23 Kamitenma-cho, Nishi-ku, Hiroshima-shi
- Phone
- 082-232-8271
- Fax
- 082-293-0070
- E-Mail
- info@ohtachuzousyo.co.jp
- URL
- https://www.ohtachuzousyo.co.jp/
Company PR
Established in 1923. Thanks to your support, we celebrated our 100th anniversary.
Based on our corporate philosophy ``manufacturing products that satisfy our customers'' and ``working on new creations with a spirit of challenge,'' we continue to grow into a company that enhances the skills we have cultivated, creates, and takes on challenges.
At Chiyoda Office in Kitahiroshimacho, we have built an integrated system for design, wooden mold production, casting, heat treatment, painting, annealing, machining, sheet metal, can manufacturing, and assembly. Currently we are expanding our machining at Shimane Office in Onancho, Shimane.
In addition, group companies (wholly owned companies) include "Japan Engineering Works Co., Ltd.," a sheet metal manufacturing company, "O-Cast Thai Co., Ltd. "(Thailand), a machining company, and "CASTEMA HEAVY INDUSTRIES Co., Ltd. (Thailand), a casting company, which are expanding their sales channels.
Filling the die with molten metal
Major Products
- Parts for printing presses (frames, beds, cylinder)
- Machine parts for marine vessels (engines, shaft bearings)
- Machine tool parts (columns, beds)
- Injection molding machine parts (platen, beds)
- Parts for iron manufacturing machinery (furnace covers, frames, and rims)
- Semiconductor manufacturing equipment parts (beds, frames)
Major Customers
- Mitsubishi Heavy Industries, Ltd.
- Kobe Steel, Ltd.
- NIPPON STEEL CORPORATION
- Eagle Industry Co., Ltd.、
- JFE Steel Corporation
Major Facilities/Equipment
- Melting furnace 2
5t high frequency melting furnaces 2
Induct thermo
- Shot blast 2
10t crane-type shot blast, 3,500mm×3,500mm×7,000mm (Shintokogyo)
- Annealing furnace 1
25t car-bottom annealing furnace, 6,000mm×3,000mm×2,500mm (KRC)
- 5-face processing machine 8
3,500mm×20,000mm (Shin Nippon Koki Co., Ltd.)
2,500mm×5,000mm(5) 3,000mm×8,000mm (Okuma)
1,400mm×3,600mm (Kotobuki Kogyo)
- Turning 6
1,600φ（2,000mmφ）(4) (O-M., Ltd.)
2,500mmφ（3,300mmφ）(2) (O-M., Ltd.)
- Machining center 4
400mm×800mm OKK
600mm×1,000mm (3 ) OKK
- NC boring 1
1,200mm×1,500mm Toshiba
- others
Llathes 6
Radial drilling machine 3
Technology Employed
- Steel industry
- Accommodates multi-item small-lot production of pig-iron castings, and Can manufacture products from weight 100kg to 13tons.
- Steel industry
- Materials FC, FCD, FCH, FCDA-Ni35(D-5) can be manufactured.
- Steel industry
- Make long and narrow castings such as 700mm x 7,500mm with high precision.
- Steel industry
- High quality is achieved with a full range of inspection equipment such as Emisssion analyzers.
- Steel industry
- Can ship after heat treatment and painting.
- Steel industry
- Uses welding repair techniques for castings.
- Steel industry
- Utilizing machining plant, machines castings and delivers product.
- Steel industry
- Can study the casting of sheet metal products and other ideas by our own design division. Please feel free to contact us.
- Steel industry
- Can assemble industrial machinery. Many achievements.
- Steel industry
- Can also create CAD (2D/3D) drawings and CAM data.
Primary Area of Technical Expertise
We are able to supply high-quality castings by using the latest electric furnaces, emisssion analyzers, heat treatment furnaces, and coating equipment, with the skills and techniques we have for producing large castings with complex shapes. We also have a full range of processing machines that can process long, square, and round items. We use CAD (2D/3D)/CAM to improve efficiency.
Future Business Challenges
- We will strive to further diversify machine tools, improve processing technology, and expand sales channels.
- We will expand the assembly area and promote the expansion of assembly work.
Future Technical Challenges
- Steel industry
- Mechanization and automation of casting mold manufacture.
- Steel industry
- Machining techniques for round and cylindrical objects.
