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Introduction:
As the atomization core first applied in the electronic atomization field, the cotton core is more easily accepted by consumers for its environmental protection, safety and reliability. As the earliest applied atomization core component, its production has been fully automated, and HCD has also accumulated a lot of experience in the development and production of such products.
What is a cotton-wrapped heating wire?
A cotton-wrapped heating wire refers to a heating element designed with specific resistance and wire diameter values, wound onto cotton using machinery. The appearance is shown in the figure below. During the design process, two connection methods are used: spot welding and riveting. This type is widely used in disposable e-cigarettes, typically paired with glass fiber tubes and integrated cotton.
Common specifications:
Power: 5–10W
Voltage: 3.7–4.2V
Wire diameter: 0.15–0.17 mm
Resistance: 1.6–1.8Ω
Resistance and wire diameter combinations:
1.6Ω + 0.16 mm wire: Suitable for high-intensity hits with fewer puffs.
1.7Ω + 0.16 mm wire: Ideal for sweet-tasting e-liquids.
1.8Ω + 0.15 mm wire: Best for large-volume puffs.
Optimal winding turns: 5–6 turns. Excessive turns may hinder oil absorption and increase carbon buildup.
Cotton selection:
Standard: 1.2 mm thick cotton.
For milder flavor: Switch to 1.1 mm or 1.0 mm cotton. Thinner cotton absorbs less e-liquid, raises the ignition temperature, and enhances flavor intensity.
Product features:
1.Energy Efficiency, Enhanced Vaporization. Efficient oil flow reduces energy loss, boosting vapor output by 25%.
2.Universal Temperature Compatibility.
3.Lightweight & Cost-Effective.
About us：
Founded in 2008, HCD is one of the earliest professional atomizing core manufacturers integrating R&D, manufacturing, and sales. With 17 years of expertise in atomizing cores, the company has sold over 20 billion units worldwide.
The headquarters of HCD is located in Huafeng Dongying Science and Technology Park, Bao'an District, Shenzhen. It operates 5 modern production bases, multiple 100,000-class dust-free workshops, and over 3,000 sets
of automated production equipment.With a workforce of more than 1,700 employees,
including nearly 300 R&D personnel, the company holds over 400 R & D patents.
Main products:
Cotton atomizing core series, ceramic atomizing core series, heating wire and heating mesh series,E-liquid storage cotton and
absorption cotton series, plastic tube and glass fiber tube
series,etc.
GOOD TECHNOLOGY/ Safe、Innovative、Stable：
17 years of technical precipitation
400+R&D patents
All materials have passed tests such as RoHS, REACH, and FDA.
Multiple GMP dust-free workshops,3000+ automated production equipment
GOOD SERVICE/ Focus on creating values for customers：
Customer-first, dedicated service
Delivery of regular samples does not exceed 3 days, and that of customized samples does not exceed 7 days.
Daily production capacity is over 8 million pcs, with super large production capacity and high-quality delivery.
Customized and joint R&D cooperation.
GOOD PRICE/ Scale and intensive production：
Bulk centralized procurement of raw materials – cost advantage
5 major production bases, over 3,000 automated equipment – production advantage
Unified management, resource complementarity, flexible allocation – management advantage
