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Zhejiang Jifeilong Instrument Technology Co., LTD. (formerly Yueqing Feilong Instrument Factory) was established in September 1999 and is strategically located at the Oujiang Port of Wenzhou City. Over the past two decades, we have developed a complete system of production, processing, grinding, and quality control departments to ensure the highest standards of manufacturing excellence.
We specialize in the integrated manufacturing and sales of various electrical switches, shafts, plastic products, and precision hardware components. Our state-of-the-art facility utilizes advanced CNC Swiss turning machines, automatic lathes, and high-precision grinding tools. Our products are widely used in home appliances, solenoid valves, electronics, automobiles, filtration equipment, and other demanding industrial sectors worldwide.
View More About UsThe demand for precision turned parts in the electronics market is reaching unprecedented heights. Modern electronics require components that can handle higher currents, operate under extreme thermal conditions, and fit into increasingly compact spaces. This has made high-conductivity copper, brass, and aluminum turned components essential in devices ranging from circuit breakers to high-speed connectors.
Traditional stamping and casting methods are often insufficient to meet the tight tolerances required by modern electronic devices. Precision Swiss-type CNC turning allows manufacturers to achieve tolerances within micrometers (μm). This capability is critical when producing miniature shafts, micro-pins, and complex terminal posts that ensure reliable electrical contact and mechanical integrity.
Selecting the right raw material is only the first step. For electronics, turned parts must often undergo specialized surface treatments such as gold, silver, nickel, or tin plating to enhance conductivity, prevent oxidation, and reduce contact resistance. Our manufacturing process integrates stringent plating quality controls to meet RoHS and REACH environmental compliance.
As we look toward the future, several key trends are shaping the metal turned parts industry for electronics:
Our precision metal turned parts are engineered to perform in the most demanding electromechanical and electronic environments.
Iron cores, bushings, and custom turned pins play vital roles in electronic devices, contributing to efficient energy conversion, signal processing, and mechanical stability. Iron cores, commonly made of laminated silicon steel, ferrite, or powdered iron, are essential in inductive components like transformers, inductors, and chokes. Their high magnetic permeability concentrates magnetic flux, enabling efficient energy transfer in power supplies and voltage regulation circuits. In high-frequency applications, ferrite cores minimize eddy current losses, ensuring stable performance in switch-mode power supplies (SMPS), RF filters, and electromagnetic interference (EMI) suppression devices. Bushings, typically fabricated from insulating materials like ceramics, plastics, or composites, provide structural support and electrical isolation in electronic assemblies. They serve as mounting sleeves for connectors, terminals, or high-voltage components, preventing short circuits and mechanical stress. In high-power electronics, bushings also act as thermal barriers, dissipating heat while maintaining dielectric strength.
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. When energized by a coil, it generates linear motion to control fluid flow (e.g., in automatic transmission valves) or switch high-current circuits (e.g., starter relays). Its rapid response and durability are vital for engine management and transmission systems. Square shafts provide torque transmission in applications like throttle bodies, idle air control valves, and wiper mechanisms. Their anti-rotation design ensures precise angular positioning, while robust materials withstand vibration and wear in harsh underhood environments. Terminal posts enable secure electrical connections in battery systems, alternators, and control modules. Designed for high conductivity and corrosion resistance, they ensure reliable power distribution even under extreme temperature fluctuations. Together, these components optimize automotive performance—enhancing fuel efficiency, emission control, and drivability while meeting stringent reliability requirements.
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, typically found in solenoid valves controlling filtration processes, actuates to regulate fluid flow during backwashing cycles or media replacement. Its rapid electromagnetic response enables automatic switching between filtration and cleaning modes in self-cleaning systems. Square shafts provide torque transmission in rotary filtration systems and valve actuators. Their non-slip design ensures positive engagement with filter head mechanisms during rotation, enabling precise positioning for multi-port valves in sand filters or membrane systems. Terminal posts establish critical electrical connections in automated filtration controls, linking sensors, controllers, and solenoid valves. Together, these components optimize filtration efficiency by enabling automated process control, precise mechanical positioning, and uninterrupted electrical signaling.
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. Square shafts provide precise torque transmission in manual operating mechanisms and interlock systems. Their anti-rotation design guarantees accurate angular positioning of contacts during opening/closing operations, while robust construction maintains structural integrity under high mechanical stress. Terminal posts establish critical power connections between the breaker and electrical conductors. Featuring high-conductivity materials with corrosion-resistant plating, they ensure low-contact resistance and reliable current carrying capacity.
Moving iron cores, square shafts, and terminal posts serve as critical components in various instrumentation devices, ensuring precise measurement, reliable signal transmission, and robust mechanical operation in industrial and laboratory applications. The moving iron core forms the essential sensing element in many analog instruments, particularly in moving-iron meters for current and voltage measurement. When exposed to magnetic fields generated by measured currents, the iron core moves proportionally to provide accurate deflection readings. Square shafts play a dual role in instrumentation, serving both as torque-transmitting elements in adjustment mechanisms and as precise positioning components in rotary switches and selectors. Terminal posts provide secure connection points in measurement circuits, designed to maintain signal integrity while facilitating easy installation. Gold-plated or corrosion-resistant terminals in precision instruments minimize contact resistance that could affect measurement accuracy.
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. Their high magnetic permeability ensures efficient electromagnetic energy conversion while minimizing eddy current losses and heat generation. For example, in microwave oven transformers or compressor motors in air conditioners, iron cores enhance energy efficiency by optimizing magnetic flux transfer, contributing to overall appliance performance. Bushings, often constructed from metal or engineered plastics, act as supportive sleeves in rotating or sliding mechanisms, such as bearings and shafts. They reduce friction, absorb vibrations, and prevent wear between moving parts.
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 like laminated steel or ferrite, which concentrate magnetic flux when the solenoid coil is energized. This creates a strong electromagnetic force to pull or push the valve mechanism, enabling rapid and precise fluid flow control. Bushings, often made of brass, stainless steel, or wear-resistant polymers, guide the iron core’s linear motion while reducing friction and wear. They ensure smooth operation, prevent metal-to-metal contact, and maintain alignment under repetitive cycling. In high-pressure or corrosive environments, bushings also act as protective sleeves, extending the valve’s service life.
For every production link, from raw material procurement to finished product shipment, strict quality control is implemented.
24-Hour Online technical and sales support to address your custom design queries promptly.
Efficient manufacturing schedules enabling fast shipping within three to five days for standard components.
Direct-from-factory manufacturing ensures cost-effectiveness, consistency, and streamlined communication.
We provide free samples for qualified projects to verify tolerances and material specifications before mass production.
Our in-house engineering team assists in optimizing DFM (Design for Manufacturing) to reduce production costs.
Comprehensive OEM/ODM services tailored to meet specific industrial and customer drawings.
Stay updated with our latest industrial insights and manufacturing technical guides.
Before machinery starts, verify lubrication of all moving parts. Check clutch/brake functionality and run idle for 1-3 minutes to ensure safety.
Widely applied in cranes, forklifts, hoists, locomotives, and electrical appliances. Specifications and dimensions are customized per client requirements.
Prioritize established brands. Inspect for smooth surface finishes, absence of corrosion, structural integrity, and dimensional tolerance precision.
Common raw materials include stainless steel, copper, brass, aluminum, and iron. Lathes, millers, and grinders process parts like screws and motor shafts.
With strict management, high-quality products and excellent services, we have won the trust and support of more than 100 enterprise customers in China and globally.
Explore our full range of precision-engineered turned parts, terminal posts, and rivets designed for high-performance electronics.
Make manufacturing your first or next electronic component a breeze with our end-to-end precision CNC turning solutions.
Copper cylindrical head parts for new energy vehicle charging piles
Rivets for miniature circuit breaker parts
