Drill Bit

Submit your detailed drawings for the production of screw rotor shafts featuring complex helical profiles and stepped mounting diameters. These components typically serve as core rotating elements in progressive cavity pumps, compressors, or precision fluid handling systems, requiring strict adherence to geometric tolerances for smooth operation.

The manufacturing process focuses on maintaining high concentricity between the machined shaft sections and the formed helical threads. Our Shanghai facility utilizes CNC turning centers and Swiss-type automatic lathes to achieve tight tolerance windows on critical interfaces, ensuring that the rotor geometry aligns perfectly with stator or housing requirements. Surface finish specifications are controlled to minimize friction and wear during dynamic assembly.

We support material selection from stainless steel, alloy steel, or other engineering metals based on your application's corrosion resistance and strength needs. Post-machining capabilities include heat treatment for hardness enhancement and surface coatings such as nickel plating or passivation. Inspection is conducted using CMM and profile projectors to verify thread form accuracy and dimensional stability before shipment.