Bore Grinding Tools  Manufacturers, Traders, Suppliers

Since 1994, YUHKEE company have the outstanding manufacturing team and a strong R & D strength, till now, has accumulated experience of many years in the manufacture of precision collet chucks, and it is conspicuous on design technology of the development, the factory have fully automation equipment and machinery, products are measured by accurate testing equipment, we can provide to you highest quality collet - precision, accuracy, stable, we will improve productivity in the precision industry sector with a humble service attitude for customers to provide technical solutions, and try to decrease our defective rate, strengthen the competitiveness for make a win-win with customers.

JINFAN offers best service to all the customers over the world with tremendous technical strength and high quality of products. JINFAN provides customers at any time with technical consultation and technical service to help the customers select the right type of equipment ,choose necessary accessory drilling tools, provide efficient frilling technique to customers, and complete technical design of anchoring and reinforcing project, as well as to undertake construction,ect. Looking forward to the future of the geothermal technique, which is a new emerging energy-saving environmental protection technique, JINFAN has researched and designed a fresh YGL-R Series Geothermal Drilling Rig. By the rational design and configuration, this series drilling rig is widely applied in a various condition of geological environments hole of ground-source heat pump work instead of the old-fashioned drilling rig which is slow and difficult to increase the borehole efficiency. It not only provides our efforts to the environmental protection of both China and international but also obtains a new growth point.
Our products have already been exported to Europe, South America, the Middle East, Southeast Asia, the Gulf region and Africa for more than 30 countries and regions. Through exports, JINFAN promotes the adjustment of industrial structure, improves the quality of the products. Combined with international advanced experience, JINFAN makes a large number of high-tech researches and development of new products which improves existing products and shows a positive impetus to the development effect.
JINFAN Company can only be continuously developed by constantly updating their products. Since the difficulty of getting incomplete sample, JINFAN cooperates with Japanese Toa-Tone’s company by using their sonic power heads technique and bring the YGL-S100 sonic drilling rig in to China market. Sonic drilling is one kind of new and efficient drilling method. Depending on high frequency vibration and rotation for drilling, sonic drilling can be suitable for complex formation drilling and sampling. Sonic drilling rig is mainly used in environmental surveying, ground source heat systems adopt drilling, engineering geology drilling, wells and bore hydrological survey, especially, the high drilling efficiency and the original soft or broken sampling.
As the Unique Manufacturer of Sea Geological Exploration Drilling Rig in China, our HGD-series Sea Geological Exploration Drilling Rig yearly bears a large number of coastal engineering geological survey tasks, in the South China Sea, Yellow Sea, and the East China Sea offshore. These explorations provides a lot of the first hand basic geological data ensuring the safety design of the offshore oil drilling platform, cross-sea bridge, pipeline routes, ports and other engineering.
“Sincerity can affect even metal and stone open.” The company has passed ISO9001 quality system certificate and ISO 14001 environment system certificate. Also company works well with these system certification standards in total quality management, R&D, manufacturing, as well as the pre-sale, after sales service. JINFAN has received the European CE certification, the important license of European market. The company has used the dedicated CNC, and gotten the quality of inspection and detection means. Follow as the business philosophy of our company is “high start point, and high-quality”, company strives to create the brand “SHUANGFAN” and “JINFAN” of drilling equipment and machinery fine and continues to provide high quality products and excellent service to our customers.
JINFAN company is located in Wuxi, 2 hours away from Shanghai by car. Its superior geographical location, solid industrial foundation, convenient transportation and flexible trading policy of opening to the world provide it with extremely favorable conditions for developing foreign economic relations and trade.
JINFAN Company sincerely looks forwards to establish good co-operation and long –standing friendship with the worldwide customers.

Chengdu Prospecting Machinery Factory is an old factory established in 1956, which is an institution subordinate to Sichuan Geological and Mineral Exploration and Development Bureau, and is now located in Jinniu Hi-Tech Industrial Park, Tianhui Town. It is a professional factory producing brazing tools in China, integrating research, design, production and marketing.
"Cheng Tan" is a famous trademark of Chinese rock drilling tools, which is a necessary drilling tool for all kinds of pneumatic, hydraulic, electric and internal combustion rock drills, and is widely used in rock excavation and blasting projects in metallurgy, mining, coal, railway, transportation, water conservancy, electric power and other industries.
The drilling tools have won the Third Prize of National Technical Progress, the Golden Dragon Prize of National New Excellent Products, the First Prize of Major Scientific and Technological Achievement of the Ministry of Geology and Mining, and the Fourth Prize of Major Scientific and Technological Invention of the Ministry of Railways. ". In the successive product quality supervision and sampling tests conducted by the State Bureau of Technical Supervision, Cheng Tan's brazing bits were all qualified and ranked first for three consecutive times. The brand of "Cheng Tan" is well known at home and abroad, and the products cover more than 2400 specifications, including hobbing bits, disc-type hobbing bits, reaming bits, eccentric reaming drilling tools, ball-tooth bits, easy-return bits, reaming guides, hollow bits, one-piece bits, cross bits, diamond bits, brazing tails, connecting sleeves, connecting rods, connectors, tapered brazing rods, threaded brazing rods. connectors, tapered brazing rods, threaded brazing rods, etc.
In 1986, Chengdu Exploration Machinery Factory was named as a professional factory for exporting new carbide brazing bits by Sichuan Province, and in 1988, it was approved as an "Import and Export Enterprise of the People's Republic of China" by the Ministry of Foreign Economic and Trade of the State Council's Mechanical and Electrical Office. In 1997, it was granted the right to export and passed the ISO9001 quality system certification and obtained the Beijing 9000 standard and the British Crown Mark certification. In 2001, Cheng Tan Factory was awarded the title of "2001 A Grade Honorable Enterprise of Foreign Exchange Receiving Work" by the Sichuan Branch of the State Administration of Foreign Exchange and the Sichuan Foreign Trade and Economic Cooperation Department. In 2003, Cheng Tan Factory was also awarded as "Top 30 Best Benefit Enterprises of Special Equipment Manufacturing Industry in Sichuan Province" by Sichuan Bureau of Statistics and Sichuan Economic and Trade Commission. The "Cheng Tan" brand brazing tools have also won the Third Prize of National Scientific and Technological Progress, the "Golden Dragon Award" of National New Products and the "Fourth Prize of Major Scientific and Technological Invention" of the Ministry of Geology and Mining. In the successive product quality supervision and sampling tests conducted by the State Technical Supervision Bureau, the "Chengdu Exploration" brand brazing tools have passed and ranked high.
Chengdu Exploration Machinery Factory staff to science and technology, strengthen management, and strive for first-class as the goal, to speak of credibility, service, service to society as its responsibility, willing to cooperate widely with friends from all walks of life, seek development, and create a better tomorrow.

Being one of Taiwan's leading collet companies, Eastern Link Co. Ltd has achieved customer's affirmation and trust for around 40 years. Manufacturing high-precision hardware tools is not an easy task, but with the help of our skilled workforce, we design, develop, and distribute spring collets, lathe collets, drilling bits, end mill, collet chuck, guide bush, reamer, CNC milling machine holders and many other machining tools, and accessories.
Providing the highest quality products in the machinery and equipment manufacturing industry is our forte, and our dedicated team of experts never compromises on that.