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Zhejiang Jifeilong Instrument Technology Co., LTD.
(formerly Yueqing Feilong Instrument Factory)
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.
As a leading manufacturer of precision metal components, we specialize in producing high-performance metal pin anchors for filtration equipment — components that form the mechanical backbone of modern water treatment, industrial processing, and HVAC filtration systems worldwide.
View MorePrecision-machined metal pin anchors and structural hardware engineered specifically for the demanding requirements of industrial filtration systems.
A metal pin anchor for filtration equipment is a precision-manufactured mechanical fastener and structural component designed to secure, align, and stabilize critical parts within industrial and commercial filtration systems. Unlike standard fasteners, metal pin anchors are engineered with exacting tolerances to withstand the unique stresses of filtration environments — including constant fluid exposure, chemical aggression, high-cycle mechanical vibration, and wide temperature fluctuations.
In filtration systems ranging from municipal water treatment plants and industrial process filtration to HVAC air-handling units and pharmaceutical cleanroom filters, metal pin anchors serve as the load-bearing linchpins that hold solenoid valve assemblies, filter head mechanisms, multi-port valve bodies, and automated backwash actuators in precise alignment. Their role is often invisible yet indispensable: without them, even the most sophisticated filtration control system cannot maintain the geometric precision required for leak-free operation and accurate flow regulation.
Modern metal pin anchors for filtration equipment are typically fabricated from stainless steel (304/316), brass, phosphor bronze, or engineered aluminum alloys, selected for their optimal combination of corrosion resistance, magnetic compatibility with solenoid components, machinability, and mechanical strength. Surface treatments including electroless nickel plating, passivation, and hard anodizing further extend service life in chemically aggressive filtration media.
Manufactured to ISO-grade tolerances (typically IT6–IT8), ensuring exact fit within solenoid valve bores, filter head pivot points, and actuator mounting brackets — critical for maintaining zero-drift alignment in automated filtration cycles.
316L stainless steel and brass alloy pin anchors resist chlorinated water, acidic backwash solutions, and industrial process fluids. Passivated surfaces maintain integrity through 50,000+ operational cycles in continuous-duty filtration environments.
Engineered shear and tensile strength ratings accommodate the dynamic loads generated by high-pressure filtration systems (up to 16 bar), automated valve actuators, and rotary filter mechanisms without fatigue failure or dimensional creep.
Non-magnetic stainless variants are designed for compatibility with inductive position sensors and LVDT transducers in intelligent filtration control systems, enabling precise real-time monitoring of valve and actuator positions.
Available in straight, stepped, grooved, and threaded-end configurations. Custom lengths, diameters, and alloy specifications are accommodated via CNC turning and grinding, with full traceability documentation for regulated industries.
Every production batch undergoes dimensional inspection, surface roughness verification, and material certification. Strict quality control from raw material procurement through finished product shipment ensures consistent, reliable performance.
The global filtration equipment market is undergoing rapid transformation — and metal pin anchors are at the center of it.
The global industrial filtration market was valued at over USD 35 billion in 2024 and is projected to exceed USD 52 billion by 2031, driven by tightening environmental regulations, expanding water treatment infrastructure in emerging economies, and the accelerating adoption of smart, automated filtration systems. Within this growth, the demand for high-precision mechanical components — particularly metal pin anchors for filtration equipment — is rising at an above-market rate as OEM manufacturers upgrade from commodity fasteners to engineered precision components.
Key commercial and industrial trends reshaping the metal pin anchor supply chain for filtration applications include:
Relative demand growth index for precision pin anchor components by filtration sub-sector (2024–2028 forecast).
Metal pin anchors from Jifeilong are widely used in filtration equipment, home appliances, solenoid valves, electronics, automobiles, and more.
Metal pin anchors serve as structural fasteners and pivot elements in solenoid valve assemblies, multi-port filter valves, and automated backwash systems. Their corrosion-resistant construction withstands constant fluid exposure while maintaining precise alignment for accurate flow control. In self-cleaning filtration systems, pin anchors enable rapid electromagnetic response cycles and reliable mechanical positioning for optimal media contact and uninterrupted filtration performance.
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, providing instantaneous protection against short circuits.
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. Their integration supports modern test and measurement equipment, process control instruments, and laboratory analyzers where precision and durability are paramount.
Iron cores and bushings are essential functional components in household appliances, serving critical roles in electromagnetic conduction, mechanical support, and noise reduction. In washing machines, nylon bushings are commonly used in drum shafts to dampen noise and extend operational lifespan. Bushings help maintain precise alignment, ensuring smooth and stable appliance operation.
Iron cores and bushings are critical components in solenoid valves, ensuring efficient electromagnetic actuation, precise mechanical movement, and long-term reliability. The iron core concentrates magnetic flux when the solenoid coil is energized, creating strong electromagnetic force for rapid and precise fluid flow control. Bushings guide the iron core's linear motion while reducing friction and wear.
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. Terminal posts enable secure electrical connections in battery systems, alternators, and control modules, ensuring reliable power distribution even under extreme temperature fluctuations.
Understanding the precise mechanical roles that pin anchors play across different filtration system types reveals why material and dimensional precision matter so profoundly.
1. Solenoid Valve Control in Automated Backwash Filtration
In self-cleaning sand filters and automatic screen filters widely deployed in agricultural irrigation, municipal water supply, and industrial cooling tower circuits, solenoid valves cycle rapidly — often hundreds of times per day — to initiate backwash sequences. The metal pin anchor within the solenoid valve body functions as the guide rod and end-stop for the moving iron core (plunger). Its dimensional accuracy directly determines the valve's switching speed, seal integrity, and service life. A pin anchor machined to ±0.01 mm tolerance ensures the plunger travels the exact stroke length required to fully open or close the valve orifice, preventing the partial-opening conditions that cause accelerated seal wear and flow inconsistency in high-cycle filtration applications.
2. Multi-Port Rotary Valve Positioning in Sand Filter Systems
Residential and commercial sand filters for swimming pools, potable water systems, and process water treatment use multi-port rotary valves to switch between filtration, backwash, rinse, and waste modes. The pivot pin anchor at the center of the valve rotor must maintain precise radial positioning across thousands of rotation cycles. Corrosion from chlorinated water and mineral deposits makes material selection critical — 316 stainless steel pin anchors with passivated surfaces provide the combination of dimensional stability and chemical resistance required for decade-long service life in these applications.
3. Membrane Filtration Module Assembly
In reverse osmosis, ultrafiltration, and nanofiltration systems deployed in pharmaceutical manufacturing, food processing, and high-purity water production, metal pin anchors serve as alignment elements in pressure vessel end-cap assemblies and membrane element interconnectors. The pin anchor's role here is primarily positional — ensuring that membrane elements are concentrically aligned within the pressure vessel to prevent bypass flow and maintain uniform trans-membrane pressure distribution. Electropolished stainless steel pin anchors with Ra ≤ 0.8 μm surface finish are specified in pharmaceutical-grade systems to comply with hygienic design standards and prevent biofilm formation at fastener interfaces.
4. HVAC Air Filtration Damper Mechanisms
In commercial and industrial HVAC systems, motorized damper actuators controlling airflow through HEPA, activated carbon, and electrostatic filter banks rely on precision pin anchors as pivot and linkage elements. The pin anchor must maintain consistent angular positioning of the damper blade across wide temperature ranges (-20°C to +80°C) without dimensional drift that would compromise the system's ability to achieve the designed air change rates and filtration efficiency ratings. Aluminum alloy pin anchors with hard anodized surfaces provide the lightweight, thermally stable solution preferred by HVAC system integrators.
Mainly engaged in the integrated manufacturing and sales of various electrical switches, shafts, plastic products and hardware components.
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Molded case circuit breaker rivets
Custom Rivets for Miniature Circuit Breakers
Miniature circuit breaker rivets
Rivets for miniature circuit breaker parts
Water valve accessories valve core iron core
Copper cylindrical head parts for new energy vehicle charging piles
New energy vehicle charging pile component connector
Water valve series components nozzle
For every production link, from raw material procurement to finished product shipment, strict quality control is implemented.
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Fast shipping within three to five days
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The hard work in the past has brought about the current glorious career!
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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Hardware parts processing is to process raw materials (stainless steel, copper, aluminum, iron) using lathes, milling machines, drilling machines, grinding machines, polishing machines and other machinery to process various parts according to customers' drawings or samples.
View MoreWith strict management, high-quality products and excellent services, it has won the trust and support of more than 100 enterprise customers in China.
Explore our full range of precision-engineered pin anchors and hardware components designed for filtration system applications across multiple industries.
Make manufacturing your first or next metal pin anchor product a breeze with our end-to-end solution. From custom design to precision manufacturing and fast delivery.