Automotive Gear Shift Knob

Designed for the assembly needs of passenger and commercial vehicle transmission control systems, this component integrates an ergonomic grip head, a metallic-texture trim plate, and a dual-pin connection structure at the base. The top black leather-like area, complemented by an orange decorative ring, provides a comfortable grip and clear visual recognition. The off-white rigid bracket at the bottom inserts into the transmission linkage via dual locating pins, ensuring connection stability and precise stroke feedback during high-frequency reciprocating operations.

The manufacturing process involves injection molding of the skeleton, surface electroplating or PVD treatment, soft material overmolding, and precision assembly. The core of processing lies in controlling the dimensional tolerance and coaxiality of the bottom mounting interface to prevent shift play or abnormal noise caused by excessive fit clearance. Simultaneously, the fit gap between the trim plate and the main body is strictly controlled to ensure a seamless transition and high-gloss finish on the appearance surface. For the overmolding process, bonding strength and wear resistance are rigorously verified to prevent delamination or surface wear after long-term use.

Leveraging our IATF 16949 quality management system certification, our production line is equipped with Haitian precision injection molding machines and rubber injection molding equipment, offering one-stop delivery capabilities from mold development and multi-material composite molding to final assembly. We possess testing instruments such as electronic tensile testers, high and low-temperature test chambers, and ozone aging test chambers to strictly verify the mechanical properties, weather resistance, and anti-aging capabilities of materials. Buyers need to provide detailed drawings including 3D digital models, material specifications (e.g., ABS/PP substrate, TPU/silicone overmolding), and appearance limit samples to facilitate mold scheme evaluation and mass production cost confirmation.