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FRP Core Tube
Still struggling with the bulkiness and susceptibility to corrosion of traditional corrugated pipes? It’s time to say goodbye to the old ways and embrace a new era! Jiangsu Hongkai Plastic Technology Co., Ltd. proudly presents its latest breakthrough innovation—FRP core tubes with a black insulating coating.We offer two sizes of FRP core tubes for the lithium-ion battery separator industry: 3-inch and 6-inch inner diameter FRP core tubes.
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Product Description
Jiangsu Hongkai Plastic Technology Co., Ltd. specializes in manufacturing industrial core products and provides reliable FRP Core Tube solutions for film winding, metal foil processing, lithium battery materials, fiberglass rollers and other high‑precision industrial applications.
With professional production equipment and years of manufacturing experience, Hongkai has developed strong capabilities in Filament Winding Process, dimensional control, surface treatment, and customized production. Our fiberglass reinforced plastic tubes are designed to meet industrial requirements for high strength, excellent straightness, corrosion resistance, and stable performance.
From raw material selection and production processing to final inspection, every manufacturing step is carefully controlled to ensure consistent quality and long‑term reliability for global industrial customers.
Key Manufacturing Advantages
● Professional Manufacturing Capability: Equipped with advanced production equipment and experienced technical teams, Hongkai ensures stable production capacity and consistent product quality for global customers.
● Strict Dimensional Control: Precise Filament Winding Process and quality inspections help maintain excellent straightness, accurate dimensions, and reliable performance during high‑speed winding operations.
● Customized Production Solutions: We support customized specifications, including different sizes, wall thicknesses, surface treatments, and performance requirements to meet various industrial applications.
● Reliable Material Performance: Fiberglass reinforced plastic materials provide excellent strength‑to‑weight ratio, corrosion resistance, and deformation resistance, making these products suitable for demanding industrial environments.
Applications in Industrial Winding Processes
FRP tubes are widely used in industries that require lightweight, strong, and stable winding cores. Compared with traditional core materials, fiberglass reinforced plastic construction offers better mechanical strength and resistance to deformation, helping customers improve production efficiency and reduce maintenance costs.
Main Application Areas Include
● Lithium Battery Material Winding: In lithium battery separator production, FRP Core Tubes provide stable support during precision winding processes. Their excellent straightness and surface quality help maintain uniform winding performance and protect sensitive film materials.
● Metal Foil Processing: For copper foil, aluminium foil, and other metal foil winding applications, these tubes can withstand continuous load pressure while reducing deformation risks, helping prevent wrinkles and processing defects, avoiding damage or creasing to metal foil and securing processing integrity.
● Film Manufacturing Industry: These products are suitable for PET film, PE film, PI film, vapour‑deposited films, optical film, protective film, labels, stickers and other high‑performance film winding applications. The smooth surface finish and dimensional accuracy help achieve better winding quality.
● High‑Precision Industrial Applications: For industries requiring stable operation and long service life, fiberglass core solutions provide dependable support with excellent mechanical strength, corrosion resistance, and consistent performance. It also applies to packaging and transportation of electronic components for insulation, static‑electricity and electromagnetic interference isolation.
Technical Specifications
Jiangsu Hongkai Plastic Technology Co., Ltd. provides standard and customized solutions according to different production equipment and application requirements.
| Inner diameter(mm) | Inner diameter(inches) | Thickness(mm) | Length(mm) | Inner diameter tolerance | Thickness tolerance | Special requirements |
|---|---|---|---|---|---|---|
| 76.5 | 3 | 4~15mm | Any Size | ±0.3mm | ±0.3mm | According to customer's requirements |
| 152.4 | 6 | 4~15mm | Any Size | ±0.3mm | ±0.3mm | According to customer's requirements |
Mechanical Performance Data
3‑Inch Industrial Core Tube Performance Example
The following performance data represents the typical mechanical characteristics of Hongkai 3‑inch FRP Core Tubes. Test based on 3‑inch specification with 15 mm wall thickness.
| Item | Value |
|---|---|
| Straightness tolerance/mm | Within 0.1 |
| Cylindricity tolerance/mm | Within 0.1 |
| Surface | Smooth and burr‑free |
| Surface roughness/μm | 0.4 |
| Maximum rolling weight on the drum/kg | 400 |
| Axial compressive strength/MPa | 150 |
| Axial tensile strength/MPa | 400 |
| Shear strength/MPa | 32 |
6‑Inch Industrial Core Tube Performance Example
The following performance data represents the typical mechanical characteristics of Hongkai 6‑inch industrial core tubes. These specifications demonstrate stable structural performance for high‑load winding applications. Test based on 6‑inch specification with 15 mm wall thickness.
| Item | Value |
|---|---|
| Straightness tolerance/mm | Within 0.1 |
| Cylindricity tolerance/mm | Within 0.1 |
| Surface | Smooth and burr‑free |
| Surface roughness/μm | 0.4 |
| Maximum rolling weight on the drum/kg | 1000 |
| Axial compressive strength/MPa | 150 |
| Axial tensile strength/MPa | 400 |
| Shear strength/MPa | 32 |
Quality Control Process
At Jiangsu Hongkai Plastic Technology Co., Ltd., quality control is integrated into every stage of FRP Core Tube production. We focus on dimensional accuracy, surface quality, mechanical performance, and batch consistency to ensure reliable performance and long-term stability for industrial applications.
● Dimensional Inspection: Inner diameter, wall thickness, and length are carefully checked to ensure stable compatibility with customer equipment and winding systems.
● Straightness Control: Precision manufacturing processes help maintain excellent straightness, which is important for high‑speed winding operations and stable rotation performance.
● Surface Quality Inspection: Each product is inspected to ensure a smooth and burr‑free surface, reducing the possibility of scratches or damage to film and foil materials.
● Mechanical Performance Testing: Strength and structural stability are evaluated to ensure long‑term reliability under continuous industrial operation.
Customized Solutions
Different industries and production equipment may have specific requirements for dimensions, surface conditions, and mechanical properties. Hongkai provides flexible customization services to help customers achieve better production efficiency and application performance.
● Size Customization: Inner diameter, outer diameter, wall thickness, and length can be adjusted according to equipment specifications and production requirements.
● Surface Treatment: Special surface treatment options are available to improve application adaptability and meet different industrial requirements.
● Structural Machining: Customized machining options, including U‑shaped slots and other structures, help improve installation efficiency and equipment compatibility for quick shaft insertion and roll change to reduce production downtime.
● Insulating Coating Options: Black or grey surface coatings can be provided for applications requiring insulation or anti‑static performance, effectively blocking electrostatic interference for electronic‑component‑related scenarios.
● Packaging Solutions: Customized packaging methods help protect products during transportation and storage.
Why Choose Hongkai
Selecting a reliable manufacturing partner is essential for maintaining stable production quality. Jiangsu Hongkai Plastic Technology Co., Ltd. combines manufacturing experience, professional equipment, and customization capabilities to provide dependable solutions for global industrial customers.
| Customer Requirements | Hongkai Solution |
|---|---|
| High dimensional accuracy | Strict production control ensures stable dimensions and reliable equipment matching. |
| Stable performance during winding | High‑strength fiberglass reinforced materials provide excellent deformation resistance and structural stability. |
| Resistance to industrial environments | Material characteristics provide good corrosion resistance and long‑term durability. |
| Special application requirements | Customized machining, surface treatment, and product specifications are available. |
| Continuous supply requirements | Professional production capability supports consistent quality for repeated orders. |
Frequently Asked Questions
Q1: What industries use the product?
A: These FRP Core Tubes are commonly used in lithium battery separator production, copper foil and aluminium foil winding, film manufacturing, optical materials, fiberglass rollers, electronic‑component packaging & transportation and other industrial applications requiring high strength, dimensional accuracy, and stable winding performance.
Q2: Can Hongkai provide customized products?
A: Yes. Hongkai provides customized solutions including inner diameter, thickness, length, surface treatment, coating options, and machining according to customer production requirements.
Q3: What sizes are available for industrial winding applications?
A: Standard options include 3‑inch and 6‑inch inner diameter specifications. Customized dimensions can also be produced based on different equipment requirements and application conditions.
Q4: How does Hongkai ensure product quality?
A: Each production batch is inspected through dimensional checking, surface inspection, straightness control, and mechanical performance evaluation to ensure stable quality before shipment.
Q5: What are the advantages compared with traditional core materials?
A: Fiberglass reinforced tubes provide higher mechanical strength, better corrosion resistance, improved dimensional stability, and stronger deformation resistance, making them suitable for demanding industrial winding environments.
Q6: Can these products be used for lithium battery separator film production?
A: Yes. With excellent straightness, smooth surface finish, and stable mechanical performance, they are suitable for high‑precision winding processes used in lithium battery separator film production.
Contact Us
If you are looking for a reliable manufacturer with professional production capability and customized solutions, Jiangsu Hongkai Plastic Technology Co., Ltd. can provide suitable products according to your application requirements.
With advanced manufacturing equipment, strict quality control processes, and flexible customization capability, Hongkai supports global customers with stable and reliable core tube solutions.
Contact us today to discuss your project requirements and receive a customized quotation.
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