Structured Manufacturing Data (2026)

Coil Assembly

Based on aggregated insights from structured factory profiles within the CNFX directory, the standard Coil Assembly used in the Computer, Electronic and Optical Product Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Coil Assembly is characterized by the integration of Coil Winding and Core. In industrial production environments, manufacturers listed on CNFX commonly emphasize Copper wire construction to support stable, high-cycle operation across diverse manufacturing scenarios.

A precision electromagnetic component within a detection sensor head that generates or senses magnetic fields for detection purposes.

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Product Specifications

Technical details and manufacturing context for Coil Assembly

Definition
The coil assembly is a critical sub-component of a detection sensor head, typically consisting of wound conductive wire around a core material. It functions as the electromagnetic transducer that either generates a magnetic field for active sensing or detects changes in magnetic fields for passive sensing applications. Within the detection sensor head, it converts electrical signals to magnetic fields or vice versa, enabling the sensor to detect metallic objects, measure distances, or identify material properties.
Working Principle
The coil assembly operates on electromagnetic principles. When electrical current flows through the wound conductor, it generates a magnetic field (transmitting mode). Conversely, when exposed to changing magnetic fields from external sources, it induces an electrical voltage in the coil (receiving mode). In detection sensors, this electromagnetic interaction allows for non-contact sensing of metallic objects, position detection, or material characterization.
Common Materials
Copper wire, Ferrite core, Insulation material, Protective housing
Technical Parameters
  • Coil diameter and winding dimensions critical for electromagnetic performance (mm) Customizable
Components / BOM
  • Coil Winding Part
    Conductive element that carries electrical current to generate magnetic fields
    Material: Copper or aluminum wire
  • Core Part
    Concentrates and directs magnetic flux for enhanced sensitivity
    Material: Ferrite, iron powder, or air core
  • Bobbin Part
    Structural support for winding the coil wire in precise layers
    Material: Plastic or ceramic
  • Terminals Part
    Electrical connection points for integrating with sensor circuitry
    Material: Brass or copper alloy

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Coil Assembly.

precision electromagnetic coil assembly detection sensor coil winding ferrite core coil for electronics magnetic field sensing coil component industrial sensor coil assembly

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Detection Sensor Head
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Actuator (Solenoid/Pneumatic)
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Torque Motor / Solenoid
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Feedback Sensor (e.g., LVDT)
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Torque Motor
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Force generation unit
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Electromagnetic Brake Assembly
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Safety Output Relays/Contacts
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Solenoid/Piezoelectric Actuator
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Linear Motor
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Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: 0 to 10 bar
other spec: Max magnetic field strength: 500 mT, Vibration tolerance: 5g RMS
temperature: -40°C to +125°C
Media Compatibility
✓ Non-corrosive gases ✓ Clean liquids ✓ Dry particulate solids
Unsuitable: Conductive slurries with high metal content
Sizing Data Required
  • Required detection distance
  • Target object material properties
  • Available power supply voltage

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Coil deformation or collapse
Cause: Thermal stress from rapid temperature changes or over-temperature conditions, leading to material fatigue and loss of structural integrity.
Internal fouling or scaling
Cause: Accumulation of mineral deposits, corrosion products, or biological growth due to poor water quality or inadequate filtration, reducing heat transfer efficiency.
Maintenance Indicators
  • Audible hissing or gurgling sounds indicating internal flow restriction or air entrapment
  • Visible external corrosion, leaks at connections, or abnormal condensation patterns suggesting compromised integrity
Engineering Tips
  • Implement regular water treatment and filtration to maintain fluid cleanliness and prevent scaling/corrosion
  • Install temperature monitoring with alarms to prevent thermal shock and ensure operation within design limits

Compliance & Manufacturing Standards

Reference Standards
ISO 9001:2015 - Quality management systems ASTM A480/A480M - Standard Specification for General Requirements for Flat-Rolled Stainless and Heat-Resisting Steel Plate, Sheet, and Strip CE Marking - Conformity with EU safety, health, and environmental requirements
Manufacturing Precision
  • Coil Diameter: +/- 1% of nominal diameter
  • Wire Gauge: +/- 0.01mm
Quality Inspection
  • Dimensional Verification using Coordinate Measuring Machine (CMM)
  • Electrical Resistance Test

Factories Producing Coil Assembly

Manufacturer profiles with relevant production capability in China

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Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What applications are coil assemblies used for in optical product manufacturing?

Coil assemblies are critical components in detection sensors for position sensing, proximity detection, and motion control systems within optical and electronic devices.

How does the ferrite core material affect coil performance?

Ferrite cores enhance magnetic flux density and efficiency, providing stable performance with minimal energy loss, making them ideal for precision detection applications.

What specifications should I consider when selecting a coil assembly?

Key specifications include inductance value, resistance, operating temperature range, wire gauge, insulation class, and dimensional tolerances for your specific sensor design.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data basis: CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks for Computer, Electronic and Optical Product Manufacturing.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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