About Volsun Electronics Technology Co., Ltd. - Electric Insulators Supplier in China

Volsun Electronics Technology Co., Ltd. is located in China and lists five active products in its catalogue. All listed items belong to the electric insulators segment, specifically heat‑shrink tubing designed for cable management and protection. The product titles include High Temperature Flame Retardant Heat Shrink Tub, Halogen‑free non‑flame retardant heat shrinkable, Yellow and green striped heat shrink tubing, Halogen Free Flame Retardant Heat Shrink Tubing, and Flame retardant heat shrink tube. The catalogue does not provide HS codes or material specifications, but the naming indicates a focus on flame‑retardant and halogen‑free polymer compounds. The supplier is classified as an imported tier with a harbor trust rating.

The five entries cover variations in flame‑retardancy, colour coding, and halogen content, reflecting typical product differentiation in the heat‑shrink market. The "High Temperature" label suggests an operating temperature above the standard 125 °C range, while the halogen‑free items target applications requiring low smoke and toxicity. The striped tubing provides visual identification for phase‑coded wiring. As an electric insulator provider, Volsun’s offerings are positioned for sectors such as telecommunications, automotive wiring, and industrial control. No additional company‑level data such as founding year or production capacity is supplied.

Product Range and Specialties of Volsun Electronics Technology Co., Ltd.

Volsun’s catalogue lists five heat‑shrink tubing variants, each emphasizing flame‑retardant or halogen‑free properties. In the broader heat‑shrink market, products are typically manufactured from polyolefin blends that achieve shrink ratios of 2:1 to 3:1 and operating temperature ranges from - 40 °C to 125 °C or higher for high‑temperature grades. Flame‑retardant tubes often meet UL 94 V‑0 or V‑1 ratings and may be classified under IEC 60721‑3‑3 for high‑temperature environments. Halogen‑free tubes are preferred for aerospace and public‑transport applications because they emit low smoke and no halogenated gases when burned. Colour‑coded options such as yellow‑green stripes are used for phase identification in electrical installations. Standard dimensions include diameters from 1 mm to 12 mm and wall thicknesses from 0.1 mm to 0.5 mm, packaged in reels or bulk bags suitable for 20‑ft containers.

Buyers typically specify shrinkage ratio, dielectric strength (e.g., ≥ 500 V/mil), tensile strength (≈ 20 MPa), and fire‑performance test results. Common industry specifications also reference RoHS compliance and REACH registration for polymer additives. For high‑temperature applications, certifications such as IEC 60216 for thermal aging are often required. The product line’s emphasis on flame retardancy aligns with standards demanded by automotive OEMs and telecom infrastructure projects.

Trade and Export Information - Volsun Electronics Technology Co., Ltd.

China is a leading exporter of heat‑shrink tubing, with the majority of shipments classified under HS Chapter 39, notably code 3917.90 for plastic tubes, pipes and hoses. Export volumes are directed to Europe, North America, and Southeast Asia, where telecom, automotive, and industrial automation sectors import large quantities. Buyers in these regions generally require compliance with UL, IEC, and RoHS standards, and may request third‑party inspection reports such as SGS or BV.

Typical shipment sizes involve 20‑ft containers holding up to 1,200 kg of heat‑shrink tubing, packed in moisture‑resistant reels or bulk poly bags. Incoterms most frequently used are FOB Shanghai or CIF destination port, depending on buyer preference. Chinese manufacturers often provide material safety data sheets (MSDS) and test certificates alongside the goods, while customs verification focuses on correct HS code declaration and compliance documentation.

Sourcing from Volsun Electronics Technology Co., Ltd. - Buyer Guidance

When sourcing from Volsun, buyers should request a detailed datasheet that lists shrink ratio, operating temperature range, dielectric strength, and fire‑performance rating (e.g., UL 94 V‑0). Samples of each colour or formulation are advisable to verify fit and finish before confirming bulk orders. Request test reports for flame‑retardancy, halogen‑free certification, and RoHS compliance to ensure regulatory acceptance in the target market.

Confirm the packaging format (reel length, bag count) and container loading plan to avoid surprise freight costs. Typical minimum order quantities for heat‑shrink tubing range from 5,000 mm of tubing per size, with lead times of 15‑30 days from order confirmation, depending on the specific formulation. Verify that the supplier can provide third‑party inspection certificates if required by the buyer’s quality system.

What product types does Volsun offer in the heat‑shrink segment?

Volsun lists five heat‑shrink tubing variants, including high‑temperature flame‑retardant, halogen‑free non‑flame‑retardant, coloured striped, halogen‑free flame‑retardant, and standard flame‑retardant tubes.

Which standards should buyers check for flame‑retardant heat‑shrink tubing?

Buyers usually verify UL 94 V‑0/V‑1 fire‑rating, IEC 60721‑3‑3 for high‑temperature performance, and RoHS compliance for restricted substances.

What typical HS code applies to these products?

Heat‑shrink tubing made of plastic is commonly classified under HS code 3917.90, which covers tubes, pipes and hoses of plastics.

What are the common material specifications for these tubes?

They are generally polyolefin blends with a shrink ratio of 2:1 to 3:1, operating temperature from - 40 °C up to 150 °C for high‑temperature grades, dielectric strength around 500 V/mil, and tensile strength near 20 MPa.

Which markets import heat‑shrink tubing from China?

Major importers include European Union countries, the United States, Canada, and Southeast Asian nations, primarily for telecommunications, automotive wiring, and industrial control applications.

What documentation should be requested before purchase?

Buyers should ask for a product datasheet, material safety data sheet (MSDS), flame‑retardancy test report, halogen‑free certification, and a RoHS compliance statement.

What are typical packaging and shipping formats?

Products are usually supplied on moisture‑resistant reels or in bulk poly bags, loaded into 20‑ft containers; Incoterms such as FOB Shanghai or CIF are commonly used.