Blue Zinc Plated CNC Machined Parts | Hongsinn

Blue Zinc-Plated Precision CNC-Turned Metal Parts

Product Overview

Blue zinc-plated precision CNC-turned metal parts are custom-machined components manufactured according to client engineering drawings. Featuring a cylindrical body, these parts incorporate elements such as central bores, keyways, annular grooves, and lateral holes. Depending on their specific structural design and assembly requirements, they serve functions such as mechanical connection, positioning, clamping, or power transmission.

Hongsinn Precision specializes in the OEM/ODM manufacturing of custom, non-standard precision components. Based on 2D engineering drawings, 3D CAD models, or qualified samples provided by the client, we evaluate the optimal manufacturing processes—including CNC turning, milling, drilling, and keyway machining—and provide tailored surface treatment solutions to meet project specifications.

These parts can be finished with a blue zinc-plating process to enhance the corrosion resistance and aesthetic appearance of steel-based components. Specific details regarding the base material, plating thickness, passivation method, and corrosion resistance testing requirements can be finalized during the project confirmation phase.

Technical Specifications

Product Features

1. Precision CNC Turning

For cylindrical components—including those with stepped outer diameters, end faces, or coaxial structures—we evaluate CNC turning processes to ensure compliance with specifications for outer diameter, length, end-face geometry, and coaxiality.

2. Center Hole and Keyway Machining

For parts requiring center holes or keyway-like features, we machine dimensions such as bore diameter, slot width, slot depth, and relevant fit tolerances based on engineering drawings. This is ideal for custom components designed for shaft connections or precise positioning.

3. Annular Groove Machining

We can machine annular grooves on the outer diameter to meet specific assembly, positioning, or structural fit requirements. The width, depth, and placement of these grooves are determined according to the customer’s technical drawings.

4. Lateral Hole and Multi-Process Machining

For components featuring lateral (side) holes, we assess the necessary drilling, milling, or other machining operations to satisfy requirements for multi-directional features and assembly.

5. Blue Zinc Plating

Upon customer request, steel-based components can undergo zinc plating followed by a blue passivation treatment to enhance corrosion resistance. Specific requirements—such as coating thickness, passivation process, visual appearance standards, and corrosion resistance testing—must be confirmed prior to order placement.

Scope of Application

1. Mechanical Transmission Components

Based on specific structural designs, these can be used for shaft connectors, positioning components, transmission-related parts, and other mechanical elements featuring central bores or keyways.

2. Industrial Equipment and Automated Machinery

Suitable for custom mechanical parts that require precise external cylindrical surfaces, central bores, annular grooves, or lateral mounting holes; specific applications are determined by the equipment's structural design.

3. Positioning and Clamping Mechanisms

Can be utilized for custom parts in mechanical positioning, assembly connections, or clamping mechanisms, subject to verification based on actual load conditions and fit requirements.

4. General Mechanical Components

Applicable to non-standard metal-machined components used in various types of industrial equipment, meeting diverse requirements for dimensions, bore/groove configurations, and surface treatments.

5. OEM/ODM Custom Projects

Suitable for equipment manufacturers, industrial component purchasers, and mechanical system integrators for purposes such as sample development, small-batch trial production, and volume procurement.

Hongsinn Precision Manufacturing Advantages

• Established in 2010, with over 15 years of experience in precision machining
• ISO 9001:2015 Quality Management System certified
• ISO 14001:2015 Environmental Management System certified
• Equipped with the AFMING GMU-800 EVO 5-axis machining center
• Extensive inventory of CNC lathes, turn-mill centers, and machining centers
• Inspection using Zeiss CONTURA Coordinate Measuring Machines (CMM)
• Supports rapid prototyping, as well as small-batch and high-volume production
• Products exported to markets in Europe, the US, Germany, Japan, Canada, and Southeast Asia

Frequently Asked Questions

• 1. Are you a trade company or manufacturer?

  We are a manufacturer with more than 14 years of experience in CNC machining and sheet metal fabrication.

• 2. Can you protect my business? Will my drawing be safe after you get it?

  Yes, we can sign the NDA before you send the drawing.

• 3. Available for customized design drawings?

  Yes, we accept CAD, STEP, IGS, PDF, Solidwork, etc.

• 4. Do you provide samples?

  Yes, there is a sample charge, which can be refunded when you place the order.

• 5. How soon can I get your quotation?

  Within 12 hours.

• 6. What's the lead time?

  5-25 working days, based on order quantity.