Brass CNC Milling Components

Quality Brass CNC Milling components provided by Honmor are such high-precision mechanical parts that produced via CNC milling technology mainly use brass alloy including C36000, C26000 and C38500. Different from steel or aluminum alloy, the unique combination features of brass (high electrical conductivity(65% IACS), excellent thermal conductivity, natural corrosion resistance and charming golden appearance) make them irreplaceable in scenarios where conductivity, aesthetics, and ease of processing are critical. Honomr use 3-axis and 5-axis CNC machine lathes with high-speed carbide tools to produce Brass Milling Components which capitalize on brass’ low cutting resistance to achieve tight tolerance of ±0.02mm and surface roughness down to Ra0.8. Surface treatment such as polishing, tin-plating, or passviation can be provided as per customers’ needs. Therefore, whether you want to customize small batch of brass milling parts for electrical prototype development of procure large-batch parts for plumbing fixture production, Honmor can provide customized solution to help you set a balance between precision, brass’ material advantages and delivery efficiency and simplifying the procurement process.

Core Advantages

Excellent electrical and thermal conductivity for electrical applications

The electrical conductivity of brass is far higher than steel and aluminum which make it be ideal material for electrical connectors, terminal blocks and switch parts. Honmor once customized C36000 brass electrical terminal blocks for a European electrical equipment manufacturer with a positional tolerance of ±0.15mm for pin holes which ensures stable contact with wires and minimal current loss. The polished surface of parts further reduces touching resistance and improves electrical efficient by 8%. When customers purchase brass parts for electrical use, Honmor suggest choosing low-lead or lead-free brass grades and optimize milling paths to avoid burrs, ensuring the parts meet the standard of IEC 60947 and other safe standards.

Outstanding machinability for efficient production

Brass is the one of most easily machined metals, Honmor produce brass CNC milling components 40% faster than steel parts due to its low hardness and low cutting resistance. The free-cutting brass C36000, for example, can be milled at high speeds without tool wear, reducing production cycles and unit costs. A Chinese consumer electronics manufacturer procured 50,000 pieces of C36000 brass USB-C connector housings from Honmor, this kind of brass milling components with integrated grooves and holes were produced at a rate of 1,200 pieces per day per machine, 500 pieces more than aluminum equivalents. The rapid production efficiency support the customer to launch their new generation smartphone 2 weeks ahead of schedule, which help them seize the market share earlier than others and highlight Honmor’s ability to support timely order fulfillment.

Inherent corrosion resistance and aesthetics for visible use.

Brass will generate a thin, protective patina as time goes on, which is helpful for defending corrosion from air, water and mild acids, making brass milling parts suitable for plumbing fixture, decorative hardware, and outdoor electrical enclosures. Honmor’s C38500 brass plumbing valve cores, supplied to a U.S. plumbing brand, have a corrosion resistance of 1,000-hour salt spray tests (no rust) and maintain their golden appearance for 5+ years. As for decorative parts, Honmor can provide polishing or lacquering surface treatment to enhance aesthetics and prevent tarnishing. A typical example is that Honmor offered a Italian furniture manufacturer with customized polished brass drawer pulls, these parts with mirror-like surface which matched the brand’s luxury design, and their corrosion resistance ensured no discoloration in humid environments.

Technical Parameters

Application Fields

Electrical equipment and power system

Brass milling parts are widely used in electrical applications because of their high conductivity, covering electrical terminal blocks, circuit beaker housings and distribution box connectors. Honmor supplies a German electrical systems firm with C36000 brass terminal blocks—these Brass CNC Milling Components have 4 pin holes with ±0.0015mm positional tolerance, ensuring precise alignment with wires and avoiding loose connections. The tin-plated surface is capable to reduce touching resistance to 0.01Ω, meeting the safe standard of IEC 60947, and test indicate that the terminal blocks maintain stable conductivity after 10,000 insertions, which make them suitable for industrial power distribution system. As far as circuit breaker housings, the C38500 brass parts adapt a flame-retardant coating and possess impact resistance of 10J, preventing damage from electrical arcs.

Plumbing and water system

In the field of plumbing, brass milling components are outstanding in corrosion resistance and leak-proof performance, such as valve cores, pipe fittings and faucet handles. A U.S. pipe manufacturer procured 15,000 C38500 brass valve cores from Honmor. With features of sealing dimensional tolerance of ±0.02mm, these parts have ability to ensure leak-free operation under 1.6Mpa water pressure. Besides, these components passed 500,000 cycle tests without wear, which meet the requirement of ten-year lifespan of the brand. For faucet handles, Honmor’s C26000 brass parts undergo 5-step polishing to achieve a mirror finish (Ra 0.2μm), and a clear lacquer coating to prevent tarnishing in humid bathrooms. These handles have become a signature feature of the brand’s luxury faucet line.

Consumer electronics and smart devices

In the field of consumer electronics, they highly rely on brass milling components as their high conductivity and miniaturization which include USB-C connector housings, smartwatch charging pins and audio jack socks. A South Korean smartphone manufacturer ordered 50,000 pieces of customized C36000 brass USB-C connector housing from Honmor, and these parts have 6 micro-holes with tolerance of ±0.01mm, ensuring compatibility with charging cables. With features of small size and polished surface, the parts can meet the requirement of slim design and safe surface simultaneously. For smartwatch charging pins, Honmor’s C26000 brass parts have a conductivity of 70% IACS, enabling fast charging (20W) and heat dissipation to prevent overheating.

Procurement and Customization Process

Demand Communication and Design Optimization

Customers share their requirements about Swiss Type Parts including 2D/3D drawings(CAD, SSTEP and IGS are supported), alloy grade preference, tolerance grade, surface treatment and quantity. Honmor’s engineers will inspect them to evaluate machinability. If there is any better option in surface treatment, diameter or material grade, our engineers will provide the best solutions for long-term use.

Quotation and Contract Signing

Honmor will issue detailed quotation within 12 hours including alloy material cost, machining fee(based on part complexity), surface treatment cost and certification fee(such as ISO 9001, aerospace AS9100). After confirming, the formal contract is to be signed, which covers quality standards, delivery time and payment conditions. For regular customers, Honmor provides extra discounts according to the volume of order.

Sample Production and Quality Inspection

For customized Brass CNC Milling components, Honmor adapts specified alloy and equipment to produce 2-3 pieces of samples. All samples must pass three inspections:1, dimensional test(via CMM with ±0.01mm precision to verify tolerance, concentricity, and straightness); 2, surface quality test(visual inspection for surface scratches); 3, Material verification(via spectroscopic analysis to confirm alloy grade). After completing these inspection, Honmor will send detailed test reports to customers for reference. If there is any adjustments needed, Honmor conducts remake promptly until meet all requirements.

Bulk Production and Global Delivery

After the samples approval, Honmor starts mass production by using automated CNC lathe with bar feeders which ensures consistency of precision and efficiency. During production, member of quality control department will inspect parts randomly every 2 hours, 5% of each batch will be inspected tolerance and surface treatment and any non-conforming parts are reworked and discarded. After production, all the final parts are cleaned with ultrasonic cleaners and packed in anti-scratch foam, for small parts, they are to be sealed in moisture-proof bags to avoid oxidation. With long-term collaboration with DHL and FedEx, Honmor is able to deliver the goods to global automotive factories, ensuring delivery as agreed in the order on time and provides logistic number allowing customers to monitor delivery progress in real time.

Honmor Service Advantages

Honmor focus on High tolerance Titanium Turned Parts manufacture, with more than 12-years experiences and a series of official certification such as ISO 9001, AS9100 and IATF 16949 and so on.

7*24 hours after sale service: customers can consult about machining progress or quality issue at any time.

For regular clients, Honmor provides stock reserves (3-month inventory for frequently ordered parts) to shorten delivery time. Additionally, if parts have quality defects (non-human factors), Honmor offers free replacement within 6 months, solving clients’ worries when they source or order titanium turned parts.