Injection Molding Service is a manufacturing process where heated molten plastic is forced into a mold cavity under pressure. A mold cavity is a negative of the part being produced, when the cavity is filled with plastic, it is cooled and the plastic becomes solid material resulting in a completed positive component. Typically injection pressures range from 5000 to 20,000 psi. Because of high pressures involved, molds must be clamped shut during injection and cooling by clamping forces measured in tons.
Injection molding is capable of producing large numbers of parts to very high levels of precision. Holding tolerances of less than .001" (.0025 mm) is easily accomplished with the right combination of material, part design, and mold design. Even tighter tolerances can be held with additional effort.