KYONI CO.,LTD. List of Products and Services

Zhengzhou Diamond is the largest manufacturer of PCD and CBN tools in China, supplying special tools for processing engine and transmission parts to 90% of automotive manufacturers and transmission manufacturers (foreign, Japanese, and local) in China. While it can manufacture extremely high-precision tools, it has achieved a 30% cost reduction compared to Japanese manufacturers, and its tools are used by major automotive manufacturers, construction machinery manufacturers, and heavy machinery manufacturers in Japan for engine parts and gear processing. Zhengzhou Diamond has a wealth of manufacturing and delivery experience with CBN inserts and cutting tools for gear finishing. By using Zhengzhou Diamond's special CBN tools, it is possible to achieve precise finishing of grooves, outer diameters, center holes, and end faces when processing high-hardness gears (HRC 58-60), significantly improving the efficiency of gear production. We are confident that our tool life and precision are on par with Japanese manufacturers, and we have case studies to support this, so please start by trying a test.

Zhengzhou Diamond is the largest manufacturer of PCD and CBN tools in China, supplying special tools to 90% of automotive manufacturers in China (foreign, Japanese, and local). While it can manufacture extremely high-precision tools, it has achieved a 30% cost reduction compared to Japanese manufacturers, and its products are adopted by major automotive manufacturers, construction machinery manufacturers, and heavy industry manufacturers in Japan. Zhengzhou Diamond also has a wealth of experience with PCD tools for CFRP processing, being the only Chinese tool manufacturer adopted for CFRP processing for Boeing, as well as for Chinese aircraft manufacturers. Zhengzhou Diamond's PCD special reamers and drills exhibit characteristics such as high hardness, high thermal conductivity, and low friction coefficient against difficult-to-cut CFRP, effectively suppressing burr generation and receiving high praise. We are confident that our tool life and precision are on par with Japanese manufacturers, and we have case studies to prove it, so please start by trying a test.

Zhengzhou Diamond is the largest manufacturer of PCD and CBN tools in China, supplying special tools to 90% of automotive manufacturers in China (foreign, Japanese, and local). While it is capable of producing extremely high-precision tools, it has achieved a 30% cost reduction compared to Japanese manufacturers, and its products are adopted by major automotive manufacturers, construction machinery manufacturers, and heavy industry manufacturers in Japan. The company also has a wealth of experience in PCD tools for aircraft parts and aluminum parts processing, being the only Chinese tool manufacturer selected for aluminum parts processing for Boeing, as well as Chinese aircraft manufacturers. It can manufacture various tools for processing aircraft parts and aluminum parts, including turning, milling, boring, general-purpose tools, and round tools. We are confident that our tool lifespan and precision are on par with Japanese manufacturers, and we have case studies to support this, so please start by trying out a test.

PCD refers to polycrystalline, sintered diamond. There are also hard composite tools made by combining hard alloys and PCD. We offer products for various machining processes such as rough machining, semi-finishing, finishing, and ultra-precision. PCD tools can be used for cutting hard materials, machining brittle materials, and cutting ferrous materials as well. For more details, please contact us or refer to our catalog.

It is a sintered material made by mixing micron-sized abrasive particles with binders such as metal, ceramics, and cermets, and then sintering at high temperatures and high pressures. The use of CBN as an abrasive is referred to as PCBN. There are also hard composite tools made by combining hard alloys and PCBN. For more details, please contact us or refer to the catalog.

Zhengzhou Diamond is the largest manufacturer of PCD and CBN tools in China, supplying special tools for engine and automotive parts processing to 90% of automotive manufacturers in China (foreign, Japanese, and local). While it can manufacture extremely high-precision tools, it has achieved a 30% cost reduction compared to Japanese manufacturers, and its products are adopted by major automotive manufacturers, construction machinery manufacturers, and heavy industry manufacturers in Japan. It also has a wealth of delivery records for special tools used for processing connecting rods, which are major components of engines, and manufactures and supplies special PCD and CBN tools for inner diameter, outer diameter, end face, and more.

Since 2005, Kyoni Co., Ltd. has been engaged in the import and sale of "high-quality and reasonably priced Chinese products," which have been introduced to over 2,000 customers across Japan, achieving significant cost reductions. We handle a wide variety of Chinese-sourced products, including carbide tools, CBN tools, PCD tools, grinding wheels, tooling, jigs, molds, and processed parts. We have compiled a guidebook that clearly summarizes these manufacturers in an easy-to-understand format. Please make use of it for your consideration of reducing procurement and manufacturing costs!

Attention those struggling with rising prices and costs of cutting tools! Kyoni started its import and sales business of top-class Chinese cutting tool manufacturers in 2015, and now over 2,000 companies in the Japanese market have adopted our tools, achieving cost reductions in tool expenses. This document is the latest collection of successful case studies for switching to Chinese-made cutting tools in Japan (2024 edition)! With rising prices from Japanese manufacturers, you may want to try Chinese tools but worry about their quality... If you want to introduce tools that maintain quality while keeping costs down... If you are facing such concerns, please take a look. You can download the document to see numerous processing examples of carbide (Zhuzhou Tool), PCD, and CBN tools (Zhengzhou Diamond, Beijing World Diamond). Kyoni and our dealers across Japan will fully support you in the adoption process, so feel free to contact us.