What material is used to make this sleeve?

It is made from cross-linked modified polyolefin, providing high insulation, flexibility, and flame retardancy.

What is the lead time for orders?

The average lead time is one month, regardless of peak or off-peak seasons.

Flexible Flame Retardant High Voltage Sleeve

Name: Flexible Flame Retardant High Voltage Sleeve
Brand: Shanghai Wellco International Limited
SKU: 2024318742

Shanghai, ChinaShanghai Wellco International Limited

US$1.20

10-999 Meters

US$0.80

1,000+ Meters

Sample price:US$0.01/piece.Request sample

Product profile

Customization

Available

Certification

RoHS

Color

Red/Yellow/Green/Black etc.

Model NO.

W-BT

Usage

Optical Cable

Material

Type

Heat Shrinkable

Sample

Available

Operating Temperature

-40~125c

Feature

Environmental Friendly, Flexible,Flame Retardant

Transport Package

Standard Package

Origin

China

Production Capacity

100000

Key features

Flame Retardant & Flexible: Made of cross-linked polyolefin, offering environmental friendliness and flame retardancy.

Corrosion & Chemical Resistant: Resists corrosion and chemicals, suitable for harsh industrial switchgear applications.

Certified Quality: Products pass UL, RoHS, and REACH certifications for global market compliance.

Customization Available: Custom samples and operating temperature adjustments available upon request.

Structural Compactness: Reduces distance between busbars in switch cubicles to prevent short circuits.

Company profile

Shanghai Wellco International Limited

Shanghai, China

Business Type: Manufacturer/FactoryExport Year: 2017-05-22 CertifiedNearest Port: Shanghai PortAverage Response Time: ≤3.19h CertifiedTerms of Payment: LC, T/T, D/P, etc. CertifiedInternational Commercial Terms(Incoterms): FOB, CIF, CFR

AI-Powered supplier vetting

SummarySHANGHAI WELLCO INTERNATIONAL LIMITED is presented as a supplier of heat-shrink and related tubing products, with automotive, electrical, medical, and other product applications. The available information indicates multiple management and product certifications, more than 10 production lines, 21–30 quality-control staff, annual heat-shrink-tube output of 10,000,000 meters, and export sales representing 90% of total sales. It reports off-peak lead times within 15 working days and peak-season fulfillment of one month. Trading records show repeated heat-shrinkable-tubing transactions with RAYCHEMRPG PRIVATE LIMITED and a transaction involving YAZAKI INDIA PRIVATE LIMITED. However, the slices do not provide sufficient evidence to assess after-sales service, financial credibility, product-development innovation, or customization capability. The supplier’s registration information appears in 2025, but the records do not establish the full operating history of the company.

Supplier typeThe supplier is identified as SHANGHAI WELLCO INTERNATIONAL LIMITED and is associated with heat-shrink tubing, cold-shrink tubing, connector gel boxes, automotive shrink products, and related items. Its stated business covers automotive, electrical and electronics, medical, sporting goods, and other sectors, and it has self-operated import/export rights with 90% of sales reportedly from exports.

CertificationsThe basic products are stated to have passed UL, SGS, ISO9001, ISO14001, and IATF16949-related standards or certifications, while the supplier management-system certifications are listed as TS 16949 and ISO 9001. This provides explicit evidence of relevant quality and management certification coverage.

Production capacityThe supplier reports more than 10 production lines, 21–30 quality-control staff, annual heat-shrink-tube output of 10,000,000 meters, off-peak lead time within 15 working days, and peak-season fulfillment within one month. These stated figures explicitly support substantial production capacity and defined fulfillment capability.

Client casesTrade records associate the supplier with YAZAKI INDIA PRIVATE LIMITED and show repeated heat-shrinkable-tubing transactions with RAYCHEMRPG PRIVATE LIMITED across several 2025 records. These named buyer records provide concrete customer evidence, although the slices do not establish order scale, duration of relationships, performance ratings, or references.

Product Q&A

Q:What certifications does this product have?

The product is certified with RoHS, REACH, and UL standards for safety and environmental compliance.

Q:Is customization available for this heat shrink tube?

Yes, samples are available, and operating temperature specifications can be customized according to customer needs.

Q:What are the main applications for this high voltage sleeve?

It is suitable for insulation protection for transformer station buses and high/low voltage switch cubicle buses.

Q:What is the contraction ratio of the sleeve?

The contraction ratio is 2.5:1, allowing for tight and secure wrapping around cables and busbars.

Q:How does the sleeve improve safety in switch cubicles?

It compacts the structure, reduces the distance between busbars, and prevents accidental short circuit incidents.

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Flexible Flame Retardant High Voltage Sleeve