Products

Jung Won Engineering Co., Ltd. was established in 1985 with mission to create better products that ensure their maxium performance and minimum downtime of machineries. As the leading of hardfacing products manufacturer in Korea, we strive to produce innovative products that meet our clients’ needs. Our products include specially hardface-welded conical rollers, spherical rollers, table liners for cement mills, power plants and pre-grinding rollers for clinker mills and etc. Our substantial investment in research and development, along with a strong commitment to client also enables us to offer technological advancements that ensure our clients the highest-quality products available today. We are confident of our success in the quality of our products, our dedication to research and our ability to satisfy our clients.

Cardox has a wide range of tubes for specific applications. Tubes are filled with liquid carbon dioxide (exactly the same as a fire extinguisher). When energized by the application of a small electrical charge, the chemical heater instantly converts the liquid carbon dioxide to a gas. This conversion expands the CO2 volume and builds up pressure inside the tube until it causes the rupture disc at the end of the tube to burst. This releases the C02 – now 660 times the original volume – through a special discharge nozzle to create a powerful heaving force, at pressures up to 40,000 psi (3,000 bar). This all takes place in milliseconds. Carbon dioxide gas is an inert gas that is commonly used in fire extinguishers, so it is safe to use without fear of generating secondary reaction with gases in the vessel / silo. In addition, the quick release of the gas refrigerates the discharge, bringing it to a temperature low enough to avoid ignition of any air-gas mixture inside the blocked vessel.

Kettenfabrik Unna was founded in 1921 as a daughter company of Union Sils van de Loo & Co. Frondenberg. In 1925 the two confidential clerks took the company over with a management buy-out. In 1928 paid one of the confidential clerk, Friedrich Jasper, the other one out. Since then Kettenfabrik Unna is a completely owned family company. In 1949 followed with Dr. Manfred Jasper the second generation. With Dr. Ingo Jasper the third generation came in 1991 into the company. Kettenfabrik Unna has its site for more than 30 years in the industrial area of Unna. The last extension took place in 1999/2000 – another hall was built with 1.300 m2. Chains and accessories are delivered in different executions worldwide. Quality was ever one of the main philosophies of Kettenfabrik Unna. This lead to different certifications of various institutions in the domestic market as well as in export markets. The last quality certificate obtained is the ISO 9001 : 2000.Kettenfabrik Unna has a complete delivery programme for link chains as well as for articulated chains. Articulated chains were taken up in the programme in 1990 and then continuously completed. Kettenfabrik Unna delivers to many branches in many countries of the world – the reputation of Kettenfabrik Unna stands for quality.