Precision Scale Knob: Turned Components for Accurate Measurement

Precision CNC Turned Aluminum Scale Knob

This high-precision scale knob is crafted from premium 7075 aluminum alloy, featuring a sleek cylindrical design with a smooth surface adorned with a refined running texture. The outer edge is meticulously engraved with clear digital markings for accurate setting and easy reading. The central area is designed as a circular channel containing multiple through holes and positioning openings of varying diameters, enabling secure mounting, fastening, or connection to transmission mechanisms.

Manufacturing Process Overview

The production begins with high-precision CNC lathe machining on 7075 aluminum. The entire external contour, center hole, and installation hole are completed in a single setup, ensuring exceptional dimensional accuracy with tight tolerances maintained within ±0.01 mm—guaranteeing a perfect fit and reliable performance.

Following the turning process, a specialized carving machine is used to precisely engrave the teeth and scale markings, ensuring clarity, even distribution, and optimal readability. Subsequently, multiple polishing stages are applied to progressively enhance surface smoothness until a soft, reflective metallic luster is achieved.

The final step involves natural anodizing, which forms a uniform, dense oxide layer on the aluminum surface. This treatment preserves the inherent metallic texture while significantly improving surface hardness, wear resistance, and corrosion protection—making the component ideal for demanding industrial applications.

This comprehensive manufacturing process exemplifies the advanced technical capabilities of Dongguan Shengpeng Precision Technology Co., Ltd. We specialize in Precision CNC Turning Services, offering customizable dimensions and material options including aluminum alloy and stainless steel. Additional surface treatments such as oxidation, dyeing, and zinc plating are also available to meet diverse functional and aesthetic requirements.