Hengyang ZK Industrial Co., Ltd

What Hengyang ZK Industrial Co., Ltd does

Hengyang ZK Industrial Co., Ltd is a privately held Chinese manufacturer and exporter of cold shrink sealing products and the proprietary processing equipment used to produce them. Founded in 2012 and headquartered in Hengyang, Hunan Province, the company sells silicone cold shrink tubes, EPDM cold shrink tubes, end caps, cable terminations (10kV), waterproof insulation tapes, and spiral support materials to telecommunications operators, electrical power utilities, automotive wiring harness makers, and consumer goods manufacturers. Its products are based on platinum-cured silicone rubber and EPDM formulations, with validated temperature range of -50°C to 200°C and dielectric strength of 22.62–26.5 KV/mm.

The company operates a vertically integrated manufacturing model anchored by 8 plastic strip extrusion lines producing 1,000 kg/day at peak, giving ZK a claimed 60% market share of the plastic strip market in South China. From this upstream base, ZK designs and builds its own spiral winding machines, wire expanding machines, pneumatic expanding machines, textile expanding machines, vulcanizing compression molding machines, rubber mixers, and extrusion lines — and sells these machines alongside OEM finished-product manufacturing and turnkey factory construction services. This positions ZK as both a component supplier and an equipment/process vendor, with exports reaching the USA, Australia, Taiwan, India, Indonesia, Egypt, Spain, Italy, and Germany since 2016.

Revenue is generated through direct export sales of finished goods (cold shrink tubes, tapes, terminations), hardware sales of processing machinery, and professional services including OEM contract manufacturing and turnkey production line setup. Pricing is quote-based with no public list prices. The company is recognized as a National High-Tech Enterprise and operates under the ZKCS registered trademark (since 2020). It is privately held, has no institutional funding, no subsidiaries, and no acquisitions on record.

Name

Hengyang ZK Industrial Co., Ltd

Legal name

HENGYANG ZK INDUSTRIAL CO., LTD

Website

https://zkindustrial.cn

Company type

Private

Founded year

2012

Operating status

Operating

Headcount range

1–10 employees

Short description

Hengyang ZK Industrial Co., Ltd is a privately held Chinese manufacturer and exporter of cold shrink sealing tubes, processing machinery, waterproof tapes, and cable terminations serving telecommunications, electrical power, automotive, and consumer goods customers across nine countries.

Ownership category

akta.pro rank

Product category

Industrial Rubber & Plastic Sealing Products

NAICS

Rubber and Plastics Hoses and Belting Manufacturing (326220)

SIC

Gaskets, Packg & Sealg Devices & Rubber & Plastics Hose (3050)

akta.pro primary industry

Expansion Joints, Flexible Connectors & Compensators (Rubber/Fabric) (IMANALAF)

akta.pro secondary industry

Capping, Sealing & Closing Machines (IMAHAOAG)

Keywords

• Cold shrink tubing
• Rubber processing machinery
• Waterproof insulation tape
• Electrical cable accessories
• Telecommunications sealing products

Headquarters

HQ city

Hengyang

HQ country

China

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Technology or R&D, Infrastructure, Marketing or Sales

Revenue model

1. Cold Shrink Products Manufacturing and Export: Manufacturing and exporting cold shrink series sealing products including silicone cold shrink tubes, EPDM cold shrink tubes, spiral tubes, and accessories for telecommunications and electrical power industries. Products sold to international markets including America, Australia, Taiwan, India, Indonesia, Egypt, Spain, Italy, and Germany.
2. Processing Machines: Manufacturing and exporting customized processing machines including spiraling machines, expanding machines, extrusion lines, and vulcanizing compression molding machines for cold shrink product manufacturing.
3. OEM and Turnkey Services: OEM final products supply to supplement client production capacity, and turnkey production line services for factory construction.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels3 records

Core offering

ZK Industrial manufactures and exports cold shrink sealing and insulation products, including silicone and EPDM cold shrink tubes, waterproof insulation tapes, spiral strips, and 10kV cable terminations for the telecommunications and electrical power industries. The company also manufactures the processing machinery (spiral winding machines, wire/pneumatic/textile expanding machines, vulcanizing compression molding machines, rubber mixers, and extrusion lines) required to produce these products, and provides OEM final products and turnkey production line services for factory construction.

Product overview

Hengyang ZK Industrial Co., Ltd is a manufacturer and exporter specializing in cold shrink series sealing products, processing machines, and production kits for the telecommunications and electrical power industries. The product portfolio centers around cold shrink tubes (silicone and EPDM), supported by processing machinery including spiral winding machines, wire expanding machines, pneumatic expanding machines, and textile expanding machines for manufacturing. Additional offerings include rubber processing equipment (vulcanizing compression molding machines, internal mixers, open mixing millers, extrusion lines), tape products (waterproof insulation tape, silicone self fusing tape, PVC electrical tape, mastic tapes), and spiral materials (spiraling strips and tubes). The company also provides 10kV cable terminations, silicone rubber cords, silicone straws, and silicone filter rods, serving export markets across America, Australia, Taiwan, India, Indonesia, Egypt, Spain, Italy, and Germany.

Differentiator

Problem solved

Functional benefit

Brands

• ZKCS: Company's registered trademark brand for cold shrink products

Products and services

• Silicone Cold Shrink Tube High-performance, radially elastic tubing made from platinum-cured silicone rubber for seamless and tool-free installation. Used for waterproof sealing in telecommunications, electrical, and industrial applications.
• EPDM Cold Shrink Tube Ethylene Propylene Diene Monomer cold shrink tube for electrical power industry, telecommunications, and tool product handles. Provides water-proof, acid and alkali resistance, seal, protection sleeve, and low voltage seal insulation under 1kV.
• Spiral Winding Machine (ZK-HAW120) Automatic winding machine for manufacturing plastic removable support tubes. Hot air welding at 300°C with frequency converter motor control. Maximum spiral tube ID 150mm, minimum 15mm.
• Wire Expanding Machine (ZK-WEX650) Hydraulic controlled machine for expanding small diameter 5-75mm cold shrink rubber products such as insulation straight tubes and seal tubes. 750mm hydraulic cylinder stroke.
• Pneumatic Expanding Machine for Breakout (ZK-PEX150) Pneumatic expanding machine for expanding cold shrink cable accessories products including end caps, short tubes, and breakout products. Expanding diameter 15-150mm.
• Textile Expanding Machine (ZK-TEX750/1300/1500) Hydraulic expanding machine for expanding cold shrink rubber products including telecommunication cold shrink tubes, electrical power insulation straight tubes, seal tubes, low/middle voltage middle joints, and indoor/outdoor cable terminations.
• 3RT Vulcanizing Compression Molding Machine Suitable for electrical power industry products and all other rubber parts including cable accessories parts, insulators, arrestors, and bushings. Supports solid and liquid type rubber material.
• 2RT Vulcanizing Compression Molding Machine Dual power individual circuit design machine for rubber parts molding. Features vacuum chamber reaching 650-700mmHg within 5 seconds, with adjustable lift and clamping mold speed.
• Rubber Pressure Type Internal Mixer Machine used for plastication and mixing of rubber, plastic and chemical materials. Supporting line for cold shrink processing production with models from 5.5kW to 200kW.
• Rubber Open Mixing Miller Machine applied for rubber and plastic molding and mixing. Models from 15kW to 220kW to meet different rubber volume usage.
• Silicone Rubber Tube Extrusion Line Machine applied for extruding silicone rubber tubes used for cold shrink tube production. Includes vertical silicone extruder, vertical high temperature oven, and stainless steel low temperature oven.
• Plastic Strip Extrusion Line Machine for extruding plastic strips and profiles. Includes extruder, cooling system, pulling machine, and rolling machine.
• Waterproof Insulation Tape (ZK2028) Self-adhesive rubber and insulating mastic tape with excellent adhesive and electrical properties. Suitable for insulation and waterproof sealing of solid medium cable joints. 51mm x 1.65mm x 3m, challenges 3M Scotchfill PUTTY.
• Silicone Self Fusing Tape Silicone tape for electrical industry applications requiring self-fusing sealing properties.
• PVC Electrical Tape (ZK2033) PVC electrical tape for telecommunication and electrical industry, challenges 3M Scotch Super 33+ Vinyl Electrical tape.
• Waterproof Mastic Tape Waterproof sealing tape, challenges 3M Scotchfill PUTTY and Scotch 2166.
• EPR High Voltage Insulation Tape High voltage insulation tape, challenges 3M Scotch 23#.
• Spiraling Strips by Welding Type PP/PE strips for spiraling different diameters supporting tubes used in electrical power and telecommunication industries. Meet ROSH 2.0 standard.
• 10kV Termination 10kV EPDM inside termination for safely terminating medium-voltage power cables rated up to 10,000 volts. Provides electrical isolation and sealed connection to switchgear, transformers, or overhead lines.
• Silicone Cold Shrink Tube with Mastic Silicone cold shrink tube with mastic for waterproof seal in coaxial cables on telecommunication base stations, N-type connectors, 1/2 jumper, Din head connectors.
• EPDM End Cap Suitable for all kinds of cable end seal including outer sheath of EPR, PVC, LSOH cables, lead sheathed cable, and all kinds of armored wire.
• Spiral Winding Machine (Hot Air Winding Machine) Automatic spiraling and cutting machine for producing spiral tubes from strips with hot air welding.
• Color EPDM Cold Shrink Tube Customized color EPDM cold shrink tubes for various applications including sports equipment handles.
• OEM Final Products Manufacturing Service OEM final products supply to supplement client production capacity. Provides contract manufacturing of cold shrink tubes and related products for industry-leading cold shrink manufacturers.
• Turnkey Production Line Setup Service Turnkey production line service for factory construction, providing end-to-end cold shrink manufacturing line setup for clients building new production facilities.

Quantifiable outcome

• 100% timely delivery with stable quality
• +1 more outcomes

Named customers10 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Scale indicators6 records

Recent moves6 records

Expansion highlights4 records

Broad incumbents

• 3M: Global diversified manufacturer whose Electrical Markets division sells Scotchfill, Scotch 23, and Scotch Super 33+ tapes that ZK explicitly positions against. Comparable as a sealing/insulation tape supplier to telecom and electrical power customers.
• Prysmian Group: World's largest cable manufacturer with accessories and jointing kits for telecom and power networks. Comparable as an upstream-downstream participant in cable infrastructure where ZK's cold shrink products are applied at termination and jointing points.
• Sumitomo Electric Industries: Major Japanese manufacturer of cold shrink tubing and cable accessories for power and telecom via its Sumitomo Electric Wiring Systems group. Overlaps with ZK in cold shrink tubes and medium-voltage terminations.
• ABB (cable accessories): Global industrial conglomerate with an extensive cable accessories portfolio including cold shrink terminations and joints for medium- and high-voltage power networks. Comparable end-market focus on power utilities and grid infrastructure.

Direct peers

• TE Connectivity (Raychem): TE's Raychem product line is the historical leader in cold shrink tubing for telecom base stations and power cable terminations. Direct product, customer, and application overlap with ZK's silicone and EPDM cold shrink tube portfolio.
• Shenzhen Wo'er Heat-Shrinkable Material: Leading Chinese heat-shrink and cold shrink tubing manufacturer competing directly with ZK in EPDM and silicone cold shrink tubes, cable terminations, and electrical insulation products for domestic and export markets.
• Shawcor (DGT): Shawcor's connection systems business produces heat-shrink and cold shrink cable accessories for pipeline, power, and telecom applications. Comparable as a cold shrink tube and cable sealing product manufacturer serving similar end markets.
• HellermannTyton: Specialist in cable management, sealing, and insulation products including cold-applied sealing tubes for telecom and power. Comparable in target verticals (telecom base stations, power utilities) and product function (waterproof insulation).
• Changyuan Electric (CYG): Chinese manufacturer of cold shrink cable accessories, heat shrink terminations, and silicone rubber insulation products serving power utilities and telecom operators - directly comparable product line and customer base to ZK.

Emerging players

• Gala Heat Shrink (Raychem licensee and competitor ecosystem): Manufacturer of heat shrink and cold shrink tubing products serving electrical and telecom markets in Asia. Comparable niche focus and emerging-market geographic exposure to ZK's export business.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/hengyang-zk-industrial-co-ltd

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Hengyang ZK Industrial Co., Ltd