Open format: Open Channels for lead spray stalks can be cylindrical or conical. Conical lead channel helps prevent loss of resin from the spray Nozzle were removed when the stalks.Reduced pressure chamber with injection: stalk Stalk this spray is used for the purpose of reducing the pressure of plastic flow flowing granules in Hot Runner system, it helps prevent the plastic flow and pressure losses from the injector Nozzle in the mold open quickly and prevent the air inside the silver stem spray. The air is then compressed during the injection process and reach the high temperature can cause the burning plastic. The closed form: injection stem is equipped with a one-way valve in the channel leading to possible for plastic flow through nozzle by being towed or possible for the air to go on inside.
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