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Was established in September 1999 and is located at the Oujiang Port of Wenzhou City. It has complete production, processing, grinding and other departments as well as other departments. It mainly engages in the integrated manufacturing and sales of various electrical switches, shafts, plastic products and hardware components. The products are widely used in home appliances, solenoid valves, electronics, automobiles, filtration equipment and other fields.
View MoreUnderstanding the commercial and industrial context of brass precision parts in low-voltage electrical equipment
The global low-voltage electrical equipment market is valued at over USD 120 billion and is projected to grow at a CAGR of 6.8% through 2030. Brass precision parts — including pins, shafts, rivets, and terminal posts — form the backbone of this industry, enabling reliable performance in circuit breakers, contactors, and distribution boards worldwide. China remains the largest manufacturing hub, supplying over 40% of global demand for these components.
Modern brass precision parts manufacturing leverages CNC multi-spindle turning, cold heading, and precision grinding technologies to achieve tolerances as tight as ±0.005mm. For low-voltage electrical applications, dimensional accuracy directly impacts contact resistance, arc-interruption performance, and long-term reliability. Leading Chinese factories like Jifeilong have invested in automated quality inspection systems including CMM (Coordinate Measuring Machines) to ensure zero-defect delivery.
Key growth drivers include rapid urbanization in Asia-Pacific, the global smart grid buildout, EV charging infrastructure expansion, and increasingly stringent IEC/UL safety standards. The push for energy efficiency is compelling OEMs to source higher-quality brass components that minimize resistive losses and heat generation. Custom OEM/ODM solutions are in high demand as product designs become more compact and application-specific.
Mainly engaged in the integrated manufacturing and sales of various electrical switches, shafts, plastic products and hardware components
Brass precision parts are far more than commodity components — they are the critical enablers of safe, efficient, and long-lasting low-voltage electrical systems. Below, we examine the specific roles these parts play across key application scenarios.
Brass (copper-zinc alloy) offers an unmatched combination of electrical conductivity (~15–28 MS/m), excellent machinability, corrosion resistance, and mechanical strength. For low-voltage electrical equipment — operating at voltages up to 1000V AC or 1500V DC — brass precision parts ensure minimal contact resistance, reliable arc interruption, and consistent dimensional accuracy across millions of operating cycles. These properties make brass the material of choice for terminal posts, contact pins, pivot shafts, and rivet fasteners in circuit breakers, contactors, relays, and switchgear.
In molded case circuit breakers (MCCBs) and miniature circuit breakers (MCBs), brass pins and shafts serve as pivot axes for the trip mechanism and contact arm assembly. Their precise geometry — typically ground to tolerances of ±0.003mm — ensures consistent contact pressure and repeatable trip characteristics. Brass rivets provide secure, vibration-resistant fastening of current-carrying bimetal strips and arc chutes. The moving iron core, when paired with brass guide bushings, delivers rapid electromagnetic actuation for instantaneous short-circuit protection. Terminal posts feature corrosion-resistant brass with tin or nickel plating, ensuring low-resistance connections across decades of thermal cycling.
Brass precision parts are extensively used in solenoid valve assemblies for HVAC, industrial automation, and water treatment. The valve core (plunger) must exhibit tight dimensional tolerances to ensure reliable sealing and repeatable flow characteristics. Brass nozzles and valve seats provide excellent wear resistance and corrosion immunity in contact with water, refrigerants, and hydraulic fluids. Custom-machined brass iron cores enable precise electromagnetic gap control, directly affecting valve response time and power consumption. Our factory produces these components with surface roughness Ra ≤0.8μm for optimal sealing performance.
The transition to electric vehicles and hybrid powertrains has dramatically increased demand for brass precision pins and connectors in EV charging infrastructure. Copper cylindrical head parts for charging pile connectors must withstand 10,000+ mating cycles while maintaining contact resistance below 5mΩ. Brass components in automotive relays, fuse holders, and battery management system (BMS) connectors ensure reliable current distribution in 400V–800V EV architectures. Our new energy series components are designed to meet IEC 62196 and GB/T 20234 standards for EV charging equipment.
Precision brass shafts and terminal posts are critical in industrial meters, transducers, and process control instruments. Square shafts with tight angular tolerances enable precise rotary switch positioning and selector mechanism alignment. Gold-plated or silver-plated brass terminal posts minimize thermoelectric EMF in millivolt-level measurement circuits. In moving-iron panel meters, brass pivot pins provide the low-friction bearing surface essential for accurate needle deflection. These components must maintain dimensional stability across operating temperatures from -40°C to +125°C in harsh industrial environments.
Key technology and market trends shaping the future of precision brass components
As circuit breakers and contactors shrink to meet compact panel board designs, component tolerances are tightening to sub-micron levels. CNC Swiss-type lathes and precision centerless grinding now achieve Ra ≤0.4μm surface finishes on brass pins as small as 1.5mm diameter, enabling next-generation ultra-compact MCBs for residential and commercial applications.
RoHS and REACH compliance is driving the transition from conventional leaded brass (C36000) to lead-free alloys such as C69300 (eco-brass) and C87850. These alloys maintain excellent machinability while eliminating lead content to below 0.1%, meeting EU directives for electrical equipment. Closed-loop brass chip recycling systems are also reducing material waste by up to 30%.
AI-powered vision inspection systems now detect dimensional deviations and surface defects at production speeds exceeding 200 parts/minute. Digital twin technology enables virtual process optimization before physical production, reducing setup time by 40%. IoT-connected CNC machines provide real-time SPC (Statistical Process Control) data, ensuring Cpk ≥1.67 for critical dimensions in safety-critical electrical components.
The global EV market is expected to require 8× more precision brass connector components by 2030 compared to 2023. Smart grid infrastructure — including smart meters, remote-operated switches, and IoT-enabled distribution panels — demands brass components with enhanced EMI shielding and higher current ratings. Our factory is expanding its EV-grade connector pin production capacity to meet this surging demand.
Post-pandemic supply chain disruptions have accelerated the trend toward regional sourcing partnerships. Major European and North American electrical OEMs are establishing long-term supply agreements with qualified Chinese precision parts manufacturers, combining competitive pricing with ISO 9001-certified quality systems. Jifeilong's direct factory model eliminates intermediaries, reducing lead times to 3–5 days for standard components.
Advanced surface treatments — including electroless nickel plating, silver plating, and selective gold plating — are extending component service life in corrosive and high-humidity environments. Nano-coating technologies are emerging for brass terminal posts in marine and outdoor switchgear applications, providing salt-spray resistance exceeding 1000 hours per IEC 60068-2-52 testing standards.
It is widely used in fields such as home appliances, solenoid valves, electronics, automobiles, and filtration equipment
Moving iron cores, square shafts, and terminal posts are fundamental components in circuit breakers, ensuring reliable operation, precise mechanical control, and secure electrical connections in power distribution systems. The moving iron core serves as the key actuating element in magnetic trip units and solenoid-operated breakers. When excessive current flows through the coil, the core moves rapidly to trigger the trip mechanism, providing instantaneous protection against short circuits.
Iron cores and bushings are critical components in solenoid valves, ensuring efficient electromagnetic actuation, precise mechanical movement, and long-term reliability. The iron core (or plunger) is typically made of soft magnetic materials which concentrate magnetic flux when the solenoid coil is energized, enabling rapid and precise fluid flow control. Bushings guide the iron core's linear motion while reducing friction and wear.
Iron cores and bushings are essential functional components in household appliances, serving critical roles in electromagnetic conduction, mechanical support, and noise reduction. Iron cores, typically made of laminated silicon steel, are widely used in transformers, motors, and solenoids. Bushings, often constructed from metal or engineered plastics, act as supportive sleeves in rotating or sliding mechanisms, reducing friction and extending operational lifespan.
Moving iron cores, square shafts, and terminal posts are critical components in modern automotive electrical and electromechanical systems, ensuring precise control, efficient energy transfer, and reliable connectivity. The moving iron core, typically found in solenoids, relays, and fuel injectors, serves as the key actuating element. Terminal posts enable secure electrical connections in battery systems, alternators, and control modules, ensuring reliable power distribution even under extreme temperature fluctuations.
Iron cores and bushings play vital roles in electronic devices, contributing to efficient energy conversion, signal processing, and mechanical stability. Iron cores are essential in inductive components like transformers, inductors, and chokes. Their high magnetic permeability concentrates magnetic flux, enabling efficient energy transfer in power supplies. Bushings provide structural support and electrical isolation in electronic assemblies, preventing short circuits and mechanical stress.
Moving iron cores, square shafts and terminal posts play vital roles in modern filtration systems, ensuring precise control, reliable mechanical operation and secure electrical connectivity in both industrial and commercial applications. The moving iron core actuates to regulate fluid flow during backwashing cycles or media replacement. Terminal posts establish critical electrical connections in automated filtration controls, linking sensors, controllers and solenoid valves.
For every production link, from raw material procurement to finished product shipment, strict quality control is implemented. We are committed to delivering brass precision parts that exceed international standards for low-voltage electrical equipment.
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Before the machinery starts working, check whether the moving parts have been lubricated with oil. Then start it and check if the clutch and brake are functioning properly. Let the machine tool run idle for 1 to 3 minutes. Do not operate the machinery if it malfunctions.
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The processing of hardware parts is becoming increasingly common. It can be widely applied in many machinery and processing factories, such as cranes, forklifts, hoists, and even in daily life, such as gold locks, keys, and parts for locomotive maintenance.
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The quality of hardware accessories: Nowadays, there are a large number of hardware accessories on the market, with varying qualities. When making a purchase, it is best to choose an established brand. Also, pay attention to whether their surfaces are smooth, if there is any rust, or if there is any damage, etc.
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Hardware parts processing is to process raw materials (stainless steel, copper, aluminum, iron.....) We use lathes, milling machines, drilling machines, grinding machines, polishing machines and other machinery to process various parts according to customers' drawings or samples.
View More →With strict management, high-quality products and excellent services, it has won the trust and support of more than 100 enterprise customers in China.
Make manufacturing your first or next product a breeze with our end-to-end solution. From custom brass precision parts to full OEM/ODM support — we deliver quality you can rely on.