Very high shot volumes of up to 180,000 cm3 and energy-efficient hybrid drive technology – thanks to this combination, Ettlinger injection molding machines are the perfect solution for manufacturing large manhole systems.

Ettlinger machines have a unique technical advantage in this particular application: the frame specially developed for holding and flexibly positioning core pullers. It turns the core pullers into an integral part of the machine. Separate pullers are no longer required for the numerous individual molds – leading to a significant, sustainable reduction in production costs.

During the past few years, accessible manholes 1000 mm in diameter have played an increasingly important role in the wastewater management industry when it comes to inspecting pipework. These manhole systems have a modular structure comprised of an entrance cone, shaft ring, and shaft bottom with port openings for the pipes; they frequently have an overall height of several meters.