Custom Enameled Wire Inductors & Precision Coils Manufacturer
We design and manufacture high-efficiency enameled wire inductors, custom inductor coils, and heavy-current chokes. Engineered with precise winding and superior insulation, our components ensure stable performance in demanding power and electronic applications.
Custom Enameled Wire Inductor Coils for Critical OEM Industries
Certified to IATF 16949 standards, our automated facility delivers custom inductor coils, heavy-current chokes, and copper air core coils. Utilizing advanced CNC winding machines and digital bridge testing, we guarantee precise inductance values within strict ±2% tolerances with up to Class N insulation.
Flat-wire edge-wound inductors minimizing skin effects with low DCR and high saturation currents (Isat) under continuous 2MHz+ switching frequencies in VRMs.
AEC-Q200 compliant OBC chokes and DC-DC converter transformers wound with high-temperature Class H wire and vacuum-impregnated for 3KV+ dielectric isolation.
Ultra-fine enameled coils down to 0.05mm wound from high-purity oxygen-free copper, achieving maximum Q-factor resonance and +/-2% inductance stability for signal processing.
Heavy-duty servo motor chokes and EMI filters featuring custom molded encapsulation to eliminate mechanical resonance and prevent dielectric breakdown under vibration.
Coreless air coils and lightweight molded inductors for drone ESC electronics, optimizing magnetic flux efficiency to handle high peak currents while minimizing total payload weight.
Large-scale power inductors utilizing rectangular copper wire and nanocrystalline cores to maintain stable magnetic permeability under massive continuous electrical loads.
High-power Litz wire chokes for industrial welding and transit traction systems, engineered to handle continuous currents exceeding 100A with total thermal safety.
INDUCTOR COIL HERSHEY CUSTOMIZATION
Custom Enameled Wire Inductor Winding: High-Frequency Electrical Efficiency
From ultra-fine 0.05mm copper wire to heavy-gauge rectangular copper bars, we customize high-frequency coils for optimal electrical efficiency. Our strict quality control manages DCR (DC Resistance) and insulation integrity, ensuring zero-defect components under continuous thermal loads.
Customized to Your Needs
We offer comprehensive customization services for enameled wire inductors and coils,
meeting your specific requirements across diverse application scenarios.
Raw Material Options
- Music Wire
- Stainless Steel - 302/304, 17-7
- Inconel Alloy
- Hastelloy
- Brass
- Titanium
- MP35N
- Elgiloy
- Monel
- Hard Drawing
- Hard Drawing Galvanized
- Oil Quenched
- Chromium Silicon
- Chromium Silicon Valve Grade
- Phosphor Bronze
- Beryllium Copper/Bronze
Additional Processes
- Grinding
- Presetting
- Load Testing
- Shot Peening
- Vibratory Polishing
- Heat Treatment
- Stress Relieving
Surface Treatment Options
- Electroplating: Zinc-Manganese
- Pre-galvanized Steel Wire
- Electropolishing for Stainless Steel
- Powder Coating: Available in Any Color
- Electrophoretic Coating (E-Coating)
- Hot-Dip Coating: Black Only
Project Case
We provide comprehensive custom inductor and coil solutions to
meet your exact electrical specifications across diverse electronic applications.
Enameled Wire Industor Coil
Enameled Wire Industor Coil
Enameled Wire Industor Coil
Enameled Wire Industor Coil
Enameled Wire Industor Coil
Enameled Wire Industor Coil
Enameled Wire Industor Coil
Enameled Wire Industor Coil
Have Questions?
Connect with our coil engineering team to discuss your project.
Industries We Serve
Your Customization Journey:
From Concept to Container
We make it simple for you to turn your design ideas into high-quality products. Our streamlined cooperation process ensures
clear communication, efficient production, and reliable delivery, so you can focus on growing your business.
Terminal Stamping & Flat Copper Process:
Incoming Inspection
Stamping
Forming
Grinding & Polishing
Hardening Treatment
Surface
Treatment
Final
Inspection
Packaging & Delivery
Coil Bending & Lead Welding Process:
Incoming Inspection
Bending
Processing
Welding
Processing
Grinding
Surface
Treatment
Final
Inspection
Packaging & Delivery
Our Factory And Facilities
Our factory introduces advanced automated winding machinery and precision testing instruments for high-frequency components. We process ultra-fine 0.05mm wire up to heavy rectangular copper bars, delivering reliable inductor coils, chokes, and air cores with optimized electrical efficiency for global electronics OEMs, and leaf springs, covering a full range of applications from ultra-precision to industrial heavy-duty requirements. Hershey currently operates over 100 advanced production machines, including fully automatic CNC spring machines, CNC leaf spring machines, and CNC rotary spring machines. Responding to customer demands for improved delivery efficiency, structural integration, and cost synergy, Hershey officially added precision hardware stamping and welding workshops in 2018, achieving a strategic upgrade from single-product spring manufacturing to multi-process collaborative, one-stop delivery services.
Certification
Partners
Frequently Asked Questions
We are a professional spring manufacturer with over 20 years of experience, located in Dongguan, China. We possess complete production lines, a heat treatment center, and an IATF16949 certified quality laboratory. You are welcome to visit our factory physically or via video call at any time.
We have extensive processing capabilities, covering a wire diameter range from 0.07mm to 25mm. We specialize in precision compression springs, extension springs, torsion springs, wire forms, as well as stamping parts and screws.
Absolutely. Our engineering team has over 30 years of experience. You can send us the sample, and we will reverse-engineer it using our imported Swiss precision instruments and generate CAD drawings for your approval. We can even assist in designing the spring based on your installation space.
Absolutely! We encourage sample requests to ensure our springs meet your exact requirements. If we have springs matching your specs in stock, we are happy to provide free samples (you may only need to cover shipping). For custom-designed springs,a nominal sampling/tooling fee applies, which is typicallyfully refundableonce mass production orders reach a certain volume.
We support flexible manufacturing. While large-volume production significantly reduces unit price, we also accept small trial orders (e.g., 100-500 pcs) to help you validate your market.
- Samples:As fast as3-5 daysfor standard springs.
- Mass Production:Typically10-15 days, depending on quantity and complexity.
We hold the IATF16949:2016 certification, the highest standard in the automotive industry, as well as ISO9001:2015 and ISO14001:2015. This ensures our products meet the stringent requirements of automotive, medical, and aerospace sectors.
We implement “Closed-Loop Quality Control.” Production is monitored by in-line inspection systems. Before shipment, products undergo rigorous testing using Japanese imported CCD fully automated inspection machines, image dimension measurement systems, and torque/load testers. Material certificates (COA) and inspection reports are provided with every shipment.
Quality is our cornerstone. Our in-house quality control lab utilizes precision measuring instruments(like optical projectors, force testers, salt spray test chambers) to rigorously inspect critical dimensions, load characteristics, fatigue life, material composition, and surface finishes. We adhere to strict quality standards and can provide test reports upon request.
For springs prone to tangling, we offer specialized packaging solutions such as Blister Trays, Tape & Reel, or Paper Tube packaging. This not only protects the product but also improves assembly efficiency on your automated production lines.
We support EXW, FOB, CIF, DDP, and more. With extensive export experience, we can ship goods directly to your designated port or warehouse.
Precision Springs
01
CNC Machined Parts
Automotive components demand high durability and consistent performance.
We manufacture springs and precision metal parts that meet the functional and reliability standards of automotive systems.
02
Compression Spring
We understand that compression springs play a critical role in load control and durability.
Our manufacturing capabilities acensure consistent performance, long fatigue life, and reliable quality across automotive, electronics, and industrial applications.
03
Extension Spring
We specialize in manufacturing extension springs with a wide range of end types and force requirements.
Each solution is engineered to support stable tension, repeatable performance, and long-term reliability.
04
Torsion Spring
Torsion springs require precise torque control and dimensional accuracy.
Our team develops custom torsion springs designed to meet demanding mechanical and automotive application requirements.
05
Wave Spring
Wave springs are designed to deliver reliable load performance in limited installation space.
We manufacture compact wave spring solutions that support space optimization without compromising stability.
06
Spiral Spring
We specialize in spiral spring manufacturing for controlled energy storage and release.
Our solutions are engineered for smooth output, consistent torque, and extended service life.
07
Spring Wire Form
Wire forms often serve both functional and structural purposes.
Our custom wire forming capabilities enable complex shapes tailored to specific assembly and performance needs.
08
Enameled Wire Inductor Coil
We provide custom metal stamping solutions supporting complex geometries and tight tolerances.
From tooling to mass production, our process ensures consistency, efficiency, and quality control.