aluminum tube grading ring for high voltage insulators - split design
aluminum tube grading ring for high voltage insulators
aluminum tube grading ring for high voltage insulators - split design
aluminum tube grading ring for high voltage insulators - split design

Aluminum Tube Grading Ring for High-Voltage Insulators

Aluminum tube grading ring, a power line fitting for uniform voltage distribution, corrosion-resistant for long-term outdoor use.

Aluminum Tube Grading Ring | Power Line Fitting for High-Voltage Insulators

Our aluminum tube grading ring is a professional power line fitting designed for high-voltage transmission and distribution systems. Made of high-quality aluminum alloy, it effectively equalizes the electric field around insulators, reducing corona discharge, preventing flashovers, and improving the stability and reliability of the power grid.

Key Features

  • High-strength aluminum alloy construction, corrosion-resistant and suitable for long-term outdoor use
  • Precision-engineered tube design for uniform voltage distribution, reducing electric field concentration
  • Split or integrated structure options for easy installation on various insulator types
  • Strictly manufactured according to industry standards, with reliable quality and long service life

This grading ring is widely used in power transmission projects with voltage levels from 10kV to 500kV. It helps power companies reduce maintenance costs, extend the service life of insulators, and ensure the safe operation of power lines. Manufactured by Xusheng Longtai (Jinan) Machinery Parts Co., Ltd., we support custom specifications to meet different project requirements.

Type

Grading Ring / Power Line Fitting
Material

Aluminum Alloy
Function

Voltage Equalizing, Corona Control
Application

High-voltage Transmission Lines
Suitable Voltage

10kV – 500kV

why choose us

With decades of manufacturing experience, we provide reliable industrial products with consistent quality and professional support.

  • Experienced Manufacturer — Decades of experience in manufacturing and product development.
  • Reliable Quality — Strict quality control throughout production to ensure consistent performance.
  • OEM & Customization — Customized products and solutions available to meet different application requirements.
  •  Professional Support — Technical assistance and responsive service from inquiry to delivery.

frequently asked questions

Power fittings, also known as transmission hardware or line fittings, are special metal accessories for overhead transmission and distribution lines, power substations, photovoltaic and wind power projects. They are mainly used to connect, fix and clamp wires, insulators and power poles. Our products adopt hot-dip galvanizing technology for anti-corrosion, suitable for domestic and overseas high-voltage grid projects. We have abundant stock, support bulk wholesale for foreign trade and OEM customized non-standard products, and can provide a full set of export inspection certificates.

Insulators are widely used in high-voltage transmission lines, substations and photovoltaic power projects with two core functions. Firstly, they separate live wires from grounded metal structures such as iron towers and poles to block current leakage and avoid electric leakage accidents. Secondly, they support and suspend overhead cables to bear the weight of wires and wind loads. There are composite insulators, glass insulators and Hot-dip galvanizing is the mainstream anti-corrosion process for power fittings. The coating features strong adhesion and uniform thickness, which can resist outdoor rain, sunlight and coastal salt spray erosion for a long time with an anti-rust service life of more than 15 years. The coating fully wraps steel to isolate air from metal substrate and avoid oxidation, and it won’t get rusty easily after slight bumps. This process meets domestic and foreign power grid construction standards. All exported hot-dip galvanized power fittings can provide salt spray test reports, and bulk orders from overseas are accepted.

Insulators are widely used in high-voltage transmission lines, substations and photovoltaic power projects with two core functions. Firstly, they separate live wires from grounded metal structures such as iron towers and poles to block current leakage and avoid electric leakage accidents. Secondly, they support and suspend overhead cables to bear the weight of wires and wind loads. There are composite insulators, glass insulators and porcelain insulators with good anti-pollution and anti-aging performance, suitable for bulk purchase of domestic and foreign grid export orders.

They are matching supporting parts for transmission lines and indispensable to each other. Insulators insulate live wires from iron towers, while power fittings serve as connecting components to firmly fix wires on both ends of insulators. Whether it is suspension composite insulators, glass insulators or porcelain insulators, they need matching power fittings such as tension clamps, hanging plates and ball eyes for assembly and erection. The whole set jointly ensures the stable and safe operation of high-voltage lines, ideal for one-stop bulk procurement of power grid projects.

Aluminum cutting machines can process all types of aluminum alloy profiles, wood and PVC profiles, featuring a wide range of application scenarios. Widely adopted by window and door manufacturers as well as furniture factories, this machine delivers smooth, burr-free cutting surfaces and is perfect for bulk purchase by processing plants.

Original manufacturers provide OEM & ODM brand customization services. Your brand logo can be printed on the machine body, operation panel, outer cartons and manuals. We also support non-standard functional customization, including feeding stroke, CNC system and dust removal equipment to meet processing demands of doors, windows, furniture and power aluminum profiles. OEM service is available for bulk orders, ideal for machinery distributors and foreign trade sellers to build private brands.

Our factory has been deeply engaged in the power supporting industry chain for years and built a complete upstream and downstream supply layout. On one hand, buyers of power engineering projects need not only line accessories like power fittings and insulators, but also aluminum cutting machines to produce aluminum fittings and aluminum busbars. On the other hand, factories producing doors, windows and furniture that buy aluminum cutting equipment also have demands for supporting power hardware. One-stop supply of multiple categories can cut down customers’ communication and logistics costs caused by purchasing from multiple suppliers. This purchasing model is favored by both domestic engineering contractors and overseas foreign trade buyers. SEO Keywords: power fittings manufacturer, insulator supplier, aluminum cutting machine factory, one-stop power equipment purchase, aluminum processing machine for power industry

Domestic orders can be delivered via special line logistics, full-truck or less-than-truckload transportation, and spot products can be shipped out in a short time. For foreign trade export orders, multiple logistics channels are supported, including full container sea freight, LCL sea freight, railway transport and air freight. Power accessories and cutting machines are packed with export-grade protective materials, and tracking numbers are provided for the whole logistics process. Discounted logistics prices are negotiable for bulk purchases, and door-to-door delivery or delivery to designated ports is available.

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