Winding Tube is a high-performance hollow composite tubular product manufactured by Taizhou HuaDong Insulated Material Co., Ltd. through an advanced filament winding process, using epoxy resin as the matrix material and continuous glass fiber roving as the reinforcing material, wound layer by layer at controlled angles around a rotating mandrel to form a strong, lightweight tube.
1. Material Composition The tube wall is built up from continuous glass fiber filaments impregnated with epoxy resin, wound in precise helical and hoop patterns. This winding structure gives the tube excellent hoop strength and internal/external pressure resistance while retaining good axial rigidity, combining structural strength with reliable electrical insulation.
2. Appearance Characteristics Winding Tubes are hollow cylindrical tubes with smooth, uniform inner and outer surfaces and a matte or semi-glossy finish, typically in green or natural fiber tones. They are available in a range of diameters, wall thicknesses, and lengths to meet different mechanical and insulation requirements.
3. Performance Characteristics
High mechanical strength: excellent hoop and axial strength, capable of withstanding internal/external pressure, bending, and impact loads
Lightweight: significantly lighter than equivalent metal tubing, reducing transport and installation costs
Insulating properties: high volume resistivity and dielectric strength, suitable for electrical insulation applications
Corrosion and aging resistance: resistant to moisture, chemical attack, and long-term environmental aging
Dimensional stability: maintains structural integrity under sustained load and temperature variation
4. Processing Performance Winding Tubes have good machinability and can be cut, drilled, and machined to length. Flanges, end caps, or metal fittings can be bonded or mechanically attached to both ends for specific customer requirements — consistent with our custom services for tailored profiles and terminal accessories.
5. Application Areas As a China-based Winding Tube manufacturer with 30+ years of industry experience, our tubes are widely used in:
Insulating tubes/sleeves for switchgear and disconnect switches
Structural components for composite insulators and cross-arms
Cable protection and cable ducting in power systems
Support structures for electrified railway and outdoor power infrastructure
Like our FRP ROD profiles, Winding Tubes primarily serve as insulating and load-bearing components in electric power, electronics, construction, and environmental protection applications, and are supplied globally to customers across Asia, Europe, Africa, and the Americas.
About Us
Taizhou HuaDong Insulated Material Co., Ltd.
As China Winding Tube manufacturers and Winding Tube factory, Taizhou HuaDong Insulated Material Co., Ltd (FORMER Yangzhou Dajieshi FRP products Co., Ltd), which was founded in October in 1994.
Our company is mainly engaged in the production of FRP ROD profiles, related terminal parts and accessory products. The terminal and accessories products such as various types of composite insulators, silicone rubber insulator fittings, line fittings and so on.The epoxy fiberglass core we produce as an intermediate connector and insulating parts is widely used in all fields and many kinds of composite insulator production. The profiles and composite insulators are widely used in electric power electronics and electrical railways. In the construction, automotive and environmental protection field IHIM products arewidely sales in North and South America.Africa.Asia. Europe ete such as USA.Kenya. Korea.India, Vietnam, Iran, Russia, Germany.Romania and other countries and vast areas in our country. THIIM is becoming a well-known supplier for insulation products field globally.
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Winding tube is the tubular composite profile in the product range of Taizhou HuaDong Insulated Material Co., Ltd, listed on the company website as its own category alongside FRP Rod, Composite Insulator, Metal end fittings and Cutout Fuse. Under this Winding Tube category the company currently lists one named product, Filament Winding Tube, sitting inside a catalogue of thirteen named products spread across those five categories that together make up the company's insulation and accessory products offering.
Where Winding Tube Sits in the HuaDong Catalogue
On the company website, Filament Winding Tube is the single entry filed under the Winding Tube category, placed on the same product menu as the FRP Rod, Composite Insulator, Metal end fittings and Cutout Fuse categories. Taizhou HuaDong, founded in October 1994 and previously trading as Yangzhou Dajieshi FRP Products Co., Ltd, describes its core business as the production of FRP rod profiles together with related terminal parts and accessory products such as composite insulators, silicone rubber insulator fittings and line fittings, and the Winding Tube line is offered from within that same profile manufacturing base rather than as a separate, unrelated product group.
Products listed per category on cnthim.com/product
Composite Insulator
4
FRP Rod
3
Metal end fittings
3
Cutout Fuse
2
Winding Tube
1
Across these five categories, Taizhou HuaDong states that its products meet IEC 61109, GB/T 19519, JB/T 8460 and other related standard requirements, and the company reports sales across North and South America, Africa, Asia and Europe, naming the USA, Kenya, Korea, India, Vietnam, Iran, Russia, Germany and Romania among the countries it serves, so a Filament Winding Tube order sits inside a catalogue built for export rather than one produced for domestic use only.
Sourcing Winding Tube With the Rest of an Order
Same catalogue, one order
Because Filament Winding Tube is listed on the same product menu as FRP Rod, Composite Insulator, Metal end fittings and Cutout Fuse, a buyer assembling a bill of materials for a substation or line project can review all five categories on the same site rather than sourcing the tube from a separate composites vendor.
Custom Services page
Taizhou HuaDong's website lists a dedicated Custom Services section in its main navigation, separate from the standard Product menu, for buyers whose project calls for parameters outside the items already listed under Winding Tube and the other four categories.
Frequently Asked Questions
What product does Taizhou HuaDong list under its Winding Tube category
The company website lists one product under Winding Tube, named Filament Winding Tube, shown on the same product menu as FRP Rod, Composite Insulator, Metal end fittings and Cutout Fuse.
Does winding tube come from the same production base as the company FRP rod line
Yes. Taizhou HuaDong states that it is mainly engaged in the production of FRP rod profiles together with related terminal parts and accessory products, and the Winding Tube category is offered from within that same manufacturing base.
Can buyers request parameters that are not already listed on the Winding Tube page
Taizhou HuaDong maintains a separate Custom Services page in its site navigation, distinct from the Product menu, intended for buyers who need specifications adapted beyond the items already listed.
Which regions does Taizhou HuaDong currently supply
The company reports sales across North and South America, Africa, Asia and Europe, and names the USA, Kenya, Korea, India, Vietnam, Iran, Russia, Germany and Romania among the countries it serves.
How long has Taizhou HuaDong been manufacturing FRP-based products
The company was founded in October 1994 and previously operated as Yangzhou Dajieshi FRP Products Co., Ltd before adopting its current name.
Can winding tube be ordered together with composite insulators and fittings from the same supplier
Filament Winding Tube is listed on the same product menu as Composite Insulator and Metal end fittings, so these categories can be reviewed and ordered from the same company page.
