Precision Machining and Functional Plating

DG Proto manufactures custom metal components through precision machining and functional plating. Our Dongguan facility provides CNC turning and milling, while our group-owned factory in Shenzhen operates electroplating production lines. Together, we support projects from machined parts to finished components.

For electrical contact and other technical applications, our team reviews the drawings, coating requirements, inspection methods and expected volumes before confirming the production process and quotation.

Precision Machining and Functional Plating

DG Proto supports custom metal components from precision machining through functional plating and inspection. Our Dongguan facility provides CNC turning and milling, while our group-owned factory in Shenzhen operates its own electroplating lines. Together, these facilities support the production of finished components for a range of industrial applications.

We work with materials such as brass, copper, aluminum and stainless steel, with plating options including nickel, gold and silver according to project requirements. For parts with critical contact surfaces or coating requirements, our engineering team reviews the drawings, plating specification, inspection method and production volume before confirming the manufacturing process and quotation.

Gold-Plated Contacts
Silver-Plated Contacts
Nickel-Plated Components

Gold-Plated Contacts

Silver-Plated Contacts

Nickel plated components

Tin-Plated Terminals

Copper-Plated Components

Functional Plating Thickness & Quality Control

Plating requirements are defined by each part’s drawing and coating specification. Our team reviews the base material, required coating, functional surfaces and target thickness before selecting the plating process. This is especially important for electrical contacts, where the coating must meet the requirements of the contact area.

Inspection is planned around the agreed specification and measurement locations. Depending on the project, we can review coating thickness, appearance and adhesion requirements, then confirm the inspection method and reporting scope before production. Please send us your drawings and plating requirements for a technical review and quotation.

Send Your Plating RFQ

CNC Machining – High precision CNC machining services for custom metal and plastic parts, suitable for low-volume to mass production of complex components.
CNC Milling – 3-axis and 5-axis CNC milling services for complex geometries, tight tolerances, and high-accuracy surface finishes.
CNC Turning – CNC turning services for high-precision cylindrical parts, threaded components, and custom shaft manufacturing.
Prototyping – Rapid prototyping services to accelerate product development, functional testing, and design validation before mass production.
Die Casting – High-pressure die casting services for aluminum, zinc, and magnesium alloy parts, providing cost-effective, high-strength, and high-volume metal component manufacturing.

Die Casting – Custom metal die-cast components supported through our manufacturing group. Share your drawing, material, finish and quantity requirements for a feasibility review and quotation.

Plastic Injection Molding – Custom molded plastic parts, from small detailed components to large structural housings. Our injection molding capability covers machines from 80T to 1300T.

Injection Mold Design & Manufacturing – Support from product evaluation and DFM analysis through mold design, precision machining, assembly, mold trials and optimization.

Vacuum Casting – Low-volume plastic parts and appearance samples for product development and testing.

Get Your Project Started Today

Collaborate with DG Proto on accurate and dependable production that fits your requirements. Our highly skilled team employs the latest technology and high standards to produce superior quality parts in a fast and cost-effective manner to turn your ideas into reality on time.
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