
Lunar Enterprise provides custom coil winding services for solenoid coils, bobbin wound coils, sensors, actuators, relays and electromagnetic assemblies. From prototype development to production quantities, we manufacture coils to your electrical, dimensional and performance requirements.
Precision Bobbin Wound Coils, Solenoid Coils & Electromagnetic Assemblies

CUSTOM COIL WINDING SERVICE IN INDIA
Bobbin wound coils provide reliable and repeatable winding geometry, making them ideal for solenoids, sensors, relays and electromagnetic devices requiring consistent electrical performance.
TYPES OF COIL WINDING
RANDOM COIL WINDING
Random coil winding is a straightforward winding method in which the wire is wound without a predefined arrangement, creating multiple overlapping layers within the coil. It is widely used for compact electrical and electromagnetic components where manufacturing simplicity and cost efficiency are key priorities. This technique enables faster production and lower winding costs; however, the irregular wire placement can result in higher electrical resistance, reduced space utilization, and less uniform magnetic field distribution compared to precision winding methods.
ORTHOCYCLIC COIL WINDING
Orthocyclic winding is a precision winding technique in which the wire is arranged in an organized, layer-by-layer pattern, with each turn accurately positioned alongside the previous one. By maximizing copper fill and maintaining uniform winding geometry, orthocyclic winding reduces electrical resistance, enhances magnetic field consistency, and improves overall coil efficiency. This method is widely used in high-performance transformers, inductors, sensors, and electromagnetic devices where accuracy, reliability, and repeatable performance are critical.
HELICAL COIL WINDING
Helical winding is a coil winding method in which the wire is wound in a continuous spiral around a cylindrical core, creating a uniform helical structure. This technique is commonly used in applications that require strong and concentrated magnetic fields, such as solenoids, inductors, relays, and antenna systems. Helical winding offers excellent magnetic performance while maintaining a compact coil geometry, making it an efficient solution for devices where space utilization and electromagnetic efficiency are important design considerations.

The selection of a winding technique depends on the electrical, mechanical, and performance requirements of the final application. Each winding method offers distinct advantages in terms of efficiency, coil density, cost, thermal management, and magnetic performance. Factors such as available space, operating conditions, production volume, and desired electrical characteristics should be carefully evaluated when determining the most suitable winding solution.
Lunar Enterprise offers custom coil winding solutions and bobbin-wound assemblies compatible with a wide range of winding techniques, including random, helical, and orthocyclic winding. We specialize in designing and manufacturing custom wound coils tailored to specific application requirements. Our expertise in precision layer winding and orthocyclic winding techniques helps maximize copper fill, improve magnetic field uniformity, minimize hot spots, and enhance overall coil performance. Whether you require prototypes or high-volume production, Lunar Enterprise delivers reliable, application-specific winding solutions engineered for optimal efficiency and durability.

SINGLE SOURCE MANUFACTURING
BOBBIN WOUND CUSTOM SENSOR SOLENOID COIL AND ELECTROMAGNETIC COILS

WHAT IS A SOLENOID COIL
A solenoid coil is an electromagnetic winding that converts electrical energy into a magnetic field when energized. This magnetic field can be used to create linear or rotary motion, operate valves, activate relays, control locking mechanisms, or drive various industrial automation systems.
Solenoid coils are commonly used in pneumatic valves, hydraulic systems, industrial machinery, automotive components, medical equipment, and electronic control devices. The performance of a solenoid depends on factors such as wire gauge, number of turns, operating voltage, resistance, magnetic force requirements, and environmental conditions.
At Lunar Enterprise, we manufacture custom solenoid coils designed to meet precise electrical, dimensional, and performance specifications for both prototype and production applications.
Electrical Specifications Tailored to Your Application
The electrical performance of a solenoid coil directly influences its efficiency, magnetic force, and operational reliability. At Lunar Enterprise, we customize every coil to meet the exact electrical requirements of your application.
Voltage Compatibility
We manufacture solenoid coils for a wide range of AC and DC operating voltages, ensuring seamless integration with your existing power systems and control equipment.
Optimized Power Requirements
Whether your application demands low-power operation for energy efficiency or higher power output for increased magnetic force, we engineer coils to achieve the desired performance.
Duty Cycle Design
Our coils can be designed for continuous operation or intermittent use, helping maintain thermal stability, prevent overheating, and maximize service life.
Precision Resistance & Winding Configuration
By carefully selecting wire gauge, winding density, and the number of turns, we achieve the required resistance, current characteristics, and electromagnetic performance for your application.
Customized Electrical Performance
Every coil is engineered to balance voltage, current, resistance, force output, and thermal behavior, ensuring reliable operation under real-world conditions.

THE LUNAR EDGE

INJECTION OVERMOULDING
Our in-house overmolding capabilities allow us to encapsulate coils in durable thermoplastics, providing superior mechanical and environmental protection.
SOLDERING & ASSEMBLY
Dedicated Soldering and assembly stations with quality standards to ensure zero rejection during the process


CASE STUDY
Click here to know about the entire value chain of electromagnetic yarn cuter manufactured by Lunar Enterprise, right from coil winding, over moulding to final assembly.
BROAD INDUSTRIAL APPLICATIONS FOR BOBBIN WOUND COILS
Bobbin-wound electromagnetic coils are essential components across a wide range of industries, delivering consistent and reliable performance in applications where precision, efficiency, and durability are critical. From aerospace and aviation systems to industrial automation, energy management, and advanced electronic equipment, these coils enable dependable electromagnetic functionality and support the operation of sophisticated technologies.
At Lunar Enterprise, we manufacture a variety of coil solutions, including bobbin-wound coils, ignition coils, cylindrical coils, solenoid coils, inductive coils, electromagnetic coils, and fully customized winding assemblies designed to meet specific application requirements.
INDUSTRY | APPLICATION | COIL TYPE |
|---|---|---|
Marine | Hydraulic Pump Controls | Solenoid |
Automotive | Electromagnetic Actuator Assemblies | Solenoid |
Power Generation | Transformers for Power Grids | Bobbin-Wound |
Industrial Automation | Inductive Sensors | Bobbin-Wound |
Aviation & Aerospace | Magnetic Field Sensors | Cylindrical Bobbin-Wound |
Aviation & Aerospace | Actuator Systems | Bobbin-Wound |
Aviation & Aerospace | Aircraft Ignition Systems | Ignition |
