what is overmolding mold?how many steps for the overmolding part?

Some molds allow previously molded parts to be reinserted to allow a new plastic layer to form around the first part. This is often referred to as overmolding. This system can allow for production of one-piece tires and wheels.

Two-shot or multi-shot molds are designed to “overmold” within a single molding cycle and must be processed on specialized injection molding machines with two or more injection units. This process is actually an injection molding process performed twice. In the first step, the base color material is molded into a basic shape. Then the second material is injection-molded into the remaining open spaces. That space is then filled during the second injection step with a material of a different color

Professional in various plastic mould design and manufacture
Rich experience in mold design and manufacture
Imported high-precision machining center
Maching accuracy can be controlled at around 0.0025mm, processing size upto 1020×610×610mm.

High-precision grinding machines are the necessary equipment for precision molds. The company implements a quality strategy. The gringding machines are high-precision grinding machines (precision upto ± 0.002mm, higher than the processing center). Milling machines are imported from Taiwan, 4 of which are equipped with automatic loading and unloading systems. They are powerfull, precise and accurate. EDM machines and CNC wire cutting can cut slope and taper exactly.