Golf

ABOUT Golf field

Irons and forged golf club heads

As a manufacturer specializing in forged golf club heads, since 1968 Endo Manufacturing has been operating an OEM business and has also been selling products under the EPON GOLF brand. We provide integrated services covering everything from development and mold fabrication to manufacturing, and have won high acclaim from well-known brands inside and outside Japan, boasting an 80% share of the domestic brand forged iron head market (according to internal research).

For our OEM business, we combine the delicate handwork of craftsmen with the latest automated technology to provide high-quality products with short delivery time. We have established efficient mass production systems at our bases in Japan and Thailand, and manufacture golf clubs that are extremely popular with golfers around the world, from athletes to amateurs.

Main products in the golf field

Irons and wedges
We have developed a wide range of iron heads made using traditional soft-iron forging manufacturing methods, for professional and amateurs alike. Our forging process makes use of precision molds under strict temperature control, resulting in products with an excellent hitting feel and high dimensional accuracy and quality.

EPON GOLF

We launched our own brand with the idea of pursuing quality and functionality, and putting 100% into our products and customers. Unlike mass-produced products, we develop and manufacture our premium golf clubs without compromise, from selecting materials to forging, polishing, and finishing.

We run our own store right next to our head office in Tsubame Sanjo, where we talk with customers to develop ideas for new products.

EPON GOLF

EPON GOLF products are available in the following countries

Asia	Japan, China (Hong Kong), Taiwan, South Korea, Indonesia, Singapore, Malaysia, Brunei, Vietnam, Thailand, Philippines
Europe	Austria, Sweden, Germany, Italy, Belgium, France, U.K., Spain
North America	U.S. and Canada
Oceania	Australia

REASON Why choose Endo Manufacturing for the golf field?

REASON 01.

Integrated services covering everything up to manufacturing for short delivery times

Based on our product concept, we provide in-house integrated services covering modeling, design, prototyping, master model making, mold fabrication, precision forging, quality inspection, and mass production. In addition to providing high-quality products with short delivery times, we respond quickly and flexibly to customer needs and market changes.

REASON 02.

Precision forging technology recognized by the world's top manufacturers

In 1968, Endo Manufacturing began full-scale development of forging technology for use in the golf club field with the OEM production of iron heads for major Japanese golf manufacturers. Since then, while responding to requests from manufacturers around the world, we have obtained advanced mold design expertise to predict and analyze forging conditions and metal flow. This technical foundation has allowed us to achieve precision forging that combines high strength, high toughness, and high precision, and has earned us a solid reputation in the field of golf club heads.

REASON 03.

Advanced technical skills for designing golf club heads

Endo Manufacturing’s 3D free-form design technology is essential in designing golf club heads. Advanced CAD modeling technology allows us to flexibly handle free-form curvilinear designs and complex shapes. This is why we can manufacture high-precision golf club heads. We can also provide analysis and testing services, and can propose technical solutions.

REASON 04.

Mass production and global supply,
supported by two overseas bases

With our subsidiaries in Thailand, ENDO FORGING (THAILAND) CO., LTD. and ENDO THAI CO., LTD., serving as manufacturing bases, we have built a system that allows us to achieve mass production at high quality. ENDO FORGING CO., LTD. has multiple forging lines and serves as our core base for forging golf club heads. ENDO THAI CO., LTD. takes forged materials and presses, machines, welds, polishes, plates, finishes, inspects, and packages them into finished products.

REASON 05.

Strict inspection standards and quality control

Repeated inspections and measurements are made during each process, and products are rigorously inspected to ensure that their shape, dimensions, weight, and other factors are within design values and tolerances. Only those products that meet our high quality standards are shipped out.

REASON 06.

On-site capabilities that combine the benefits of automation and the skills of master craftsmen

We continue to promote the latest automation and labor-saving measures, such as introducing 3D welding machines, multi-axis processing machines, and automatic inspection equipment, as well as switching to digital master head fabrication. However, craftsmen and skilled engineers remain in charge of processes that require human sensitivity and experience, such as master model fabrication and design with a focus on developing products that both feel and sound great in use. It is this perfect combination of automation and human skill that serves as the strength supporting Endo Manufacturing’s manufacturing sites.

REASON 07.

Our EPON GOLF brand

EPON GOLF is our own brand launched on a foundation developed over many years, that combines expertise, the latest technology, and delicate work performed by master craftsmen. Our unique golf clubs that combine beautiful shapes with high strength are extremely popular with players not only in Japan, but also throughout Asia in countries such as South Korea, China, Taiwan, Indonesia, Malaysia, and Thailand; European countries such as the U.K., Germany, and France; and also in the U.S., Canada, and Australia.

REASON 08.

Proactive development of new materials and manufacturing methods

We proactively promote the development of proprietary technologies. We have established the ENDO brand without relying on existing manufacturing methods, and promote differentiation and competitiveness amidst rapidly changing competition rules. From technological surveys to prototyping and research, we continue to take on the challenge of developing new materials and manufacturing methods for the next generation.

PROCESS Golf club head manufacturing process

Product development

After receiving drawings from the customer, we use advanced CAD modeling and simulation technologies to generate master model data. We then apply Endo Manufacturing expertise and manufacturing technology to propose the best design idea for realizing the product concept.

Master model fabrication

Once we have created a CAD model, we then fabricate a master model that will serve as the original shape. We take a unique manufacturing approach that appeals to the human senses in terms of appearance and the hitting feel and hitting sound. We create a precise original shape that serves as the standard for the product. Our head office in Niigata is in charge of the process up to this point.

Mold fabrication

The forging mold is fabricated in Thailand based on the 3D data of the master model. We utilize our extensive experience and all of the data we have accumulated to create a high-precision mold, which is crucial for producing a quality golf club. We manufacture molds in-house, allowing us to respond quickly, meticulously, and accurately to customer requests.

Precision forging

During the forging process, in which materials are heated and beaten into shape, we manufacture the product using optimal mold design and forging conditions based on the data we have accumulated through many years of experience. Here, we create the original shape of the high-quality golf club head, which meets stricter control standards than for typical forgings.

Processing (cutting and welding)

The forged head is cut using a machining center to prepare the joint surface shape. A 3D welding machine is used for welding. This allows us to accurately and automatically weld even 3D curved surfaces such as golf club heads.

Polishing

We use a combination of automatic barrel polishing and polishing by skilled workers using belts and buffing machines to provide a smooth surface finish even on complex shapes. This results in a product shape faithful to the master shape and beautiful appearance.

Plating and finishing

We then plate the surface of the golf club head. Our automated plating lines ensure consistent quality (luster and strength). We use elaborate coating technology to complete the golf club head with a beautiful and attractive shine.

Inspection and quality assurance

We strictly inspect the appearance, dimensions, and performance of the product. We ship only once it has passed our extensive quality checks, including hitting feel, weight balance, and surface finish. By implementing high precision and thorough quality control in all manufacturing processes, we have established a stable product supply and mass production system.

CONTACT US Contact information

Considering new materials and new manufacturing methods for golf club heads?

Considering new materials and new manufacturing methods for golf club heads?

Seeking a Japanese OEM manufacturer with an extensive track record?

With our precision forging technology developed over more than half a century and our extensive track record with the world’s top brands, we provide high-quality forged golf club heads in response to market changes and customer needs.
In addition to prototypes and mass production, we can also propose customized products for professional golfers and even develop new materials and new manufacturing methods.

[Free of charge] Go to our technical consultation form

CREATING A FUTURE WITHOUT LIMITS CREATING A FUTURE WITHOUT LIMITS