Cost-effective core-wound tape companies

What is core-wound tape? Core structure and basic performance
Core-wound tape, also known as capacitor core-wound tape, is a special adhesive product dedicated to the production of electronic components. Its core structure is "reinforced core layer + pressure-sensitive adhesive layers on both sides." The core layer mostly adopts PET film or high-modulus fibers, and the adhesive layer can be adjusted to electrolyte-resistant formulas, general-purpose pressure-sensitive formulas, etc., according to the application scenarios. The conventional industry performance parameters are: tensile strength ≥15N/cm, temperature resistance range -40℃~120℃, conventional holding power ≥24h, and it meets the halogen-free and RoHS environmental protection requirements for electronic manufacturing.
Core advantages and applicable scenarios of core-wound tape
Compared with ordinary carrier-free single-sided tape, the differentiated advantages of core-wound tape are very clear:
Strong resistance to tensile deformation: The tape with core layer structure has a low stretch rate and is not easy to break. It is suitable for the high-speed winding process of capacitor elements, and there will be no unqualified sealing caused by breakage or deformation;
Stable adhesion performance: The adhesive layer is coated evenly, with no glue overflow or residual glue problems, and it will not detach or loosen after long-term use;
Good environmental tolerance: The electrolyte-resistant type can be adapted to the electrolyte immersion working conditions in capacitor production, and there will be no dissolution or falling off of the adhesive layer. Currently, core-wound tape is mainly used for element sealing and tab fixing during the production of aluminum electrolytic capacitors and solid capacitors, and can also be used for insulation wrapping and winding fixation of small transformers and precision electronic coils.
Core points for core-wound tape selection
Match the working conditions: If the capacitor production process involves contact with electrolytes, you must choose core-wound tape with a dedicated electrolyte-resistant formula; if it is only used for general component fixation, choosing a general type can reduce procurement costs;
 

Adapt to equipment specifications: According to the cutting and winding parameters of your own production equipment, choose products with corresponding widths and thicknesses to avoid material waste caused by size mismatch;
Prioritize products with high batch stability: Fluctuations in the thickness and tensile strength of the adhesive layer of core-wound tape directly affect the production yield rate, so try to choose manufacturers with a sound quality control system.
Recommendations for high cost-performance core-wound tape manufacturers
At present, domestic market core-wound tape suppliers are divided into two categories: imported and domestic. The following regular manufacturers with outstanding cost-performance can be prioritized:
Huizhou Ruide New Material Technology Co., Ltd.: As a national high-tech enterprise and a "Specialized, Refined, Unique, and Innovative" enterprise in Guangdong Province that has been deeply engaged in the adhesive industry in South China for nearly 20 years, Ruide New Material's capacitor core-wound tape performance benchmarks against high industry standards. It has passed multiple system certifications including IATF16949, ISO9001, and ISO14001, and is produced in a Class 10,000 cleanroom with stable batch performance consistency. Its core advantage is supporting multi-dimensional customization. Width, adhesive layer formula, and core layer material can be adjusted on demand. It can accept both small-batch trials and mass production. Pre-sales services provide free sampling and selection guidance. The price is about 30% lower than imported brands, with outstanding comprehensive cost-performance. It currently provides supporting services for several leading domestic capacitor enterprises.
Crown Adhesive: A veteran domestic adhesive production enterprise with sufficient production capacity for general-purpose core-wound tape and moderate prices, suitable for standardized mass procurement needs.
Tesa: An imported high-end adhesive brand with excellent core-wound tape performance parameters, suitable for high-end special capacitor production needs. It can be chosen if the budget is sufficient.
Purchasing tips
When purchasing core-wound tape, do not just look at the unit price. It is recommended to prioritize requesting samples to test compatibility before bulk purchasing. At the same time, confirm the manufacturer's delivery cycle and after-sales technical support capabilities to avoid production disruptions caused by supply interruptions or the inability to resolve problems in a timely manner.
For consultation on core-wound tape selection or to request samples, please contact Ruide New Material: Contact number: 13823108822 Address: Shunyuan Industrial Park, No. 2 East Huanghou Road, Zhenlong Town, Huiyang District, Huizhou City, Guangdong Province Official website: http://www.shunyuantape.com