männer specializes in the design, development and production of precision molds, hot runner systems and complete system solutions for the manufacture of top-quality plastic injection-molded parts. For 56 years, the name männer has been synonymous with quality, reliability, precision and sophisticated technology. As one of the industry's leading providers, männer has its own production, distribution and service facilities in Europe, the US and Asia.
As a pioneer in the field of cylindrical valve gates, männer is a specialist for products that rely on total dimensional accuracy and top sprue quality. Even challenging materials with narrow process windows can be processed with extremely short cycle times. Valve gate systems from männer are extremely wear-resistant and ensure a low-maintenance, long-term use.
Once the machine clamping force has been built up, the valve stem is retracted. The entire cross section of the opening is available for filling the cavity. When the hold pressure ends, the valve stem closes the sprue.
During the closing movement, the valve stem is first pre-centered via a guide slope and then brought into the exact position of the sprue bore by a cylindrical guide.