Nakagawa Factory Co., Ltd.

Capable of component machining regardless of quantity, material, or complexity

Nakagawa Factory is a precision machining manufacturer that prides itself on being a ‘Yorozuya(one-stop shop for metalworking)’. Primarily utilising NC lathes for cutting operations, it accommodates diverse requirements—from high-mix low-volume production to one-off items—regardless of quantity, material, or machining complexity. Currently, it handles components for social infrastructure such as power stations and telecommunications equipment, while also manufacturing mass-produced items for consumer goods like motorcycles and household appliances. The company possesses extensive machining experience with a wide range of materials, including iron, stainless steel, aluminium, copper, special steel, and resins.

Manufacture of cutting tools by hand

Nakagawa Factory possesses the technical expertise, equipment, and proposal capabilities to meet customer requirements regardless of difficulty or quantity, practising highly reliable manufacturing. Centred on turning processes using NC lathes, it handles everything from high-mix low-volume production to mass production of hundreds of thousands of units. The range of machinable materials is extensive, covering ferrous and non-ferrous free-cutting and difficult-to-cut metals, as well as plastics. The company also handles grinding, heat treatment, and surface finishing, establishing an integrated processing system. Equipment-wise, processing times have been reduced through the addition and replacement of NC lathes, while the introduction of machining centres enables processing of plate materials in addition to bar stock.
For high-difficulty projects, we propose optimal machining methods from a QCD perspective and simultaneously offer VE proposals to reduce costs. We also support customers from a technical consulting standpoint, helping secure orders. Furthermore, we systematically implement training programmes covering human error prevention, health and safety, and technical instruction to foster junior staff and ensure skill succession. By prioritising human resource development, we aim for continuous quality improvement and enhanced responsiveness.

Strengths

A machining technique known as knurling is used to create fine, irregular patterns on the surfaces of metal and resin components. Primarily employed to enhance slip resistance, improve operability, and prevent rotation during press-fitting, the company is highly regarded for this machining technology.
In conventional knurling, the peaks of the ridges often become rounded, with chipping occurring. However, Nakagawa Factory's process enables the creation of distinct, unchipped ridges. This results in knurling that is aesthetically superior and possesses high grip strength.

Nakagawa Factory ensures thorough quality control by establishing inspection systems at each process stage and devising methods for managing inspection tools and records. Furthermore, recognising that effective communication is essential for quality management, the company utilises its internal newsletter to create opportunities for employees to learn about each other and organises recreational activities both during and outside working hours. Additionally, it fosters interaction between employees from various departments through internal team activities such as 5S initiatives.
Furthermore, the company places strong emphasis on personnel development. It utilises both internal and external education and training opportunities, such as conducting in-house examinations and study sessions on manufacturing techniques and product knowledge, as well as human error prevention workshops. This approach is central to its efforts in skill succession and nurturing the next generation of employees.

Message from President

Our corporate purpose lies in continually pursuing our founding principle: ‘We safeguard global livelihoods and strive to be a manufacturer cherished by society,’ thereby realising our corporate message, ‘Create for the Life’. We aspire to be an organisation where each individual embraces change and fosters innovation, delivering comfort and reassurance to people's lives and livelihoods. Moving forward, we aim to transform society's perception of manufacturing and champion the value of manufacturing as a profession.

Major Equipment

• NC lathesLB-3000EX, etc.
  OKUMA, etc.5 units
• Spindle-mounted fixed-type CNC automatic latheBNJ-51
  Citizen Machinery, etc.9 units
• Spindle-mounted CNC automatic latheA-32, etc.
  Citizen Machinery, etc.17 units
• Machining centreS500
  BROTHER INDUSTRIES1 unit
• General purpose machinePH6L-4H
  EGURO, etc.13 units

Company Overview

Company Name

Nakagawa Factory Co., Ltd.

Address

2-4-10 Kamikita, Hirano Ward, Osaka City

Company President

President Nakagawa Noriaki

Founded / Established

January 1979 / June 2009

Number of Employees

34　

Phone

06-6754-3600

Fax

06-6754-3601

E-mail

info@nakagawa-fact.jp

Official Website

https://www.nakagawa-fact.com

Capital

8,000K JPY

Awards

KENKO Investment for Health(METI) ,
Danjo Ikiiki Plus”a program promoting gender equity in workplaces“（Osaka Prefecture）