サン工業株式会社

Our Advantages

We have been able to find solutions to numerous problems over the years through various plating methods, a large-scale facility that supports mass production, and development and technical capabilities to handle difficult projects. Contact us for all your plating challlenges.

We contribute to the competitiveness of your products with 25
plating methods, state-of-the-art technology, and prototype
development with future mass production in mind.

In addition to a wide range of plating methods (25 types in all), our core competencies are technological strength, problem-solving skills, and production capacity that can support mass production. We can also accommodate both “anodic oxidation” and “plating”. We solve problems related to surface treatment by ensuring quality with analytical capabilities and launching stable mass production in a short period of time. We contribute to the competitiveness of your products in terms of quality, cost and delivery.

Our solutions for problems

Clients' problems

  • Need to improve the cost-effectiveness and quality of the surface treatment process?
  • Looking for a partner who can make prototypes of our product?
  • Need a processing manufacturer who can handle the special treatment of metals having high reflectance (97-98%) in the visible light range?
  • Looking for a processer who can meet strict precision requirements in mass production?

Our Advantages

  • We can achieve both high cost-effectiveness and high quality in mass production.
  • We can quickly produce trial samples of solutions to your problems.
  • With our wide range of plating methods and high technology, we can improve the functionality of your products.
  • Our mass production solutions far surpass those of other companies.

Differences from other companies

Company A | Quick prototyping. Company B | Mass production. Sun Industries Co., | Development Proposal & Mass Production
Various plating methods
Prototype development with a short delivery time ×
Improvements and Proposals
Launch of mass production line ×
Inspection and analysis ability. ×
Ability to process complex shapes ×
Cost

Three advantages

01Expansive range of plating methods

We provide various plating treatments such as electroplating, electroless plating, conversion treatment and deburring. Our specialized development department and test line enable optimum surface treatment proposals according to our client's requirements.

02Large-scale facility that supports mass production.

Our proposals focus on future mass production. Having a large-scale facility enables smooth setup of an actual production line. Our mass production solutions far surpass those of other companies. Please contact us any time regarding your quality/mass production concerns. We will set up a stable mass production line in a short period of time and contribute to solving your problems.

Major plating processing equipment

Main surface treatment line configuration
Electroless nickel plating 5 lines (incl. 2 automatic lines)
High corrosion resistant chrome plating 1 line
Hard chrome plating 3 Types of plating bath
Zinc plating 4 lines (incl. 3 automatic lines)
Zinc-nickel alloy plating 2 lines (both automatic)
Tin plating 1 line
Electroless tin plating 2 Types of plating bath
Blackening 1 line
Electro nickel plating 1 line
Decorative chrome plating 1 line
Gold plating 2 lines (incl. 1 automatic lines)
Silver plating 2 Types of plating bath
Magnesium chemical conversion treatment 1 line
Aluminum chemical conversion treatment 1 line
Stainless electropolishing 1 line
Electro deburring 1 line
Stainless Passivation 1 line
Special line for trial production 1 line

Major production lines

  • 2000Automatic electroless nickel plating machine for SUS
  • 2001Magnesium chemical conversion treatment line
  • 2002Automatic machine for blackening line for automotive air conditioner control parts
  • 2003Automatic zinc-iron alloy plating machine
  • 2007Automatic machine for Ni-Cr plating line for golf shafts
  • 2008Gold plating line for contact probes
  • 2010Zinc-nickel alloy plating line
  • 2011Automatic machine for partial gold plating for next-generation HDD heads

03Development and technical capabilities to handle difficult projects

Our Technical Development and Quality Assurance Staff of 13 professionals are dedicated to quality assurance and the launch of new products and technologies. With our dedicated staff, we conduct research & development and quality improvement in order to analyze and eliminate defects and meet customer needs.

Industry-government-academia collaborative research outcomes

  • Development of carbon nanotube composite silver plating (Nagano Techno Foundation, Faculty of Engineering at Shinshu University)
  • Development of nanodiamond composite hard chrome plating (Faculty of Engineering at Shinshu University)
  • Gold plating and rhodium plating on titanium metal separators (Nagano Techno Foundation)
  • Research & development of super hard alumite film (Nagano Techno Foundation)

Awards

  • 20072nd Manufacturing Nippon Grand Award, Excellence Award
  • 2012The Materials Process Technology Center Collaborative Management prize
  • 2012Minister of Health, Labor and Welfare Minister’s Award at the 2012 National Plating Contest
  • 2014Manufacturing Award NAGANO
  • 2014NAGANO Manufacturing Excellence Certification
  • 2016the Science and Technology Award from the Ministry of Education, Culture, Sports
  • 201650th Good Company Grand Prize, Excellent Company Award

International certification

  • 2000ISO9002 certified
  • 2003ISO9001 certified
  • 2008ISO14001 certified