The hot runner system is an advanced technology in building plastic injection molds’ runner system, and thatsystem has been widely used in western countries since the middle of the last century. But in China, the hot runner system was introduced and began to use only for a couple of years.
The hot runner system is achieved by heating the resin in a molten state in gates and runners.
In hot runner system, there’s no need to clean the runner or remove inside residue, the heater band will keep the nozzle, gate and the whole runner in a high temperature, and the plastic material will be in a molten state all the time. Thus, the hot runner system sometimes be called “Heat collector tube”or “runnerless molding” systems.
“Along with the popularization of the hot runner technology, the hot runner mold user proportion will be growing up continuously”,said by the international mold association secretary general. In developed counties, more than 50% or even 80% of the injection molds were produced in the hot runner system, but China is just standing on the starting point, the user proportion now is less than 10%. That’s really a huge difference but also means there’s a huge market behind.
In recent years, the popularization of the hot runner system in China was largely driven by the growing molds exports to the western companies. In western counties, injection molding production is addicted to the hot runner technology.It’s very hard to export molds without any hot runner system.
Because most of the imported hot runner molds are very expensive, the majority of injection molding companies in China can’t afford that price, and then some domestic hot runner mold makers show up.
The world well-known hot runner system brandsare as follows:
United States: D-M-E, FASTHEAT, INCOE, OSCO
Canada: MOLD, HUSKY
Germany: EWIKON, HASCO, GUNTHER
New Zealand: MASTIP
Japan: FISA, SEIKI
Korea: HOTSYS, YUDO