Jiangsu Penglong Electrical Engineering Co., Ltd.
Jiangsu Penglong Electrical Engineering Co., Ltd.
ABOUT
Penglong
  • Jiangsu Penglong Electrical Engineering Co., Ltd.
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    Industry Experience
  • Jiangsu Penglong Electrical Engineering Co., Ltd.
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ABOUT
Crafting Electricity with
Ingenuity, Connecting the World

Jiangsu Penglong Electrical Engineering Co., Ltd. is a modern enterprise specializing in the research, development, manufacturing, and sales of power transmission and distribution equipment components and high-current conductor systems.
Our products are widely applied in industries including transformers, power transmission and distribution, metallurgy, industrial furnaces, and chemical electrolysis. Our product range mainly includes conductive rods, bushings, busbars, copper-aluminum transition connectors, flexible connectors, and water-cooled conductor systems.

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Jiangsu Penglong Electrical Engineering Co., Ltd.
Product
Excellent Product with
Exquisite Craftsmanship
Provide stable and reliable connection and energy-saving solutions for high-current power transmission and distribution, electrode and electric furnace systems.
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Epoxy Die-casting Series

The epoxy die-casting series includes low-tension bushings, low-voltage conductive bars, and water-cooled conductive rods engineered for demanding transformer applications. These components are widely used in box-type, photovoltaic, and oil-immersion transformers, as well as high-current rectifier transformers serving the electrolytic non-ferrous metal and chemical industries.  Each part is precision die-cast in epoxy to deliver reliable insulation and effective sealing against dust and moisture, while water-cooling options support furnace transformer applications by rapidly dissipating heat to keep operating temperatures within a safe range.

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Jiangsu Penglong Electrical Engineering Co., Ltd.
Epoxy Die-casting Series

Flexible Coupling

The flexible coupling range includes copper foil, braided tape, stranded wire, copper bar, and copper-aluminum transition connectors designed to accommodate movement between electrical equipment. Built with low-resistivity, high-conductivity materials, these connectors absorb mechanical vibration and thermal expansion, compensate for installation misalignment, and adapt to tight or irregular installation spaces.  Many variants support 360-degree rotation and stretching with strong resistance to fatigue and vibration, while soft-hard lap-welded structures balance long-term stability with operating safety, and the copper-aluminum transition option adds flexible compensation to high-conductivity performance.

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Jiangsu Penglong Electrical Engineering Co., Ltd.
Flexible Coupling

Copper Bar

The copper bar range serves as the primary current-carrying conductor for transformer low-voltage sides and switchgear connections. Connecting copper bars deliver extremely low resistance for efficient power transmission, while plastic-shell copper busbars are purpose-built for molded case circuit breakers, offering low contact resistance and strong short-circuit withstand capability.  Irregular-shaped copper bars use specially engineered cross-sections to suppress skin and proximity effects, reducing energy loss under high-frequency or high-current operation.

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Jiangsu Penglong Electrical Engineering Co., Ltd.
Copper Bar

Aluminum Bar

The aluminum bar series includes 1070 pure aluminum, 6101 alloy, and 6063 alloy bars for transformer and switchgear conductive applications. 1070 aluminum bars offer high thermal conductivity that quickly dissipates heat from windings and lead-out terminals, helping control temperature rise. 6101 alloy bars are used for low-voltage side high-current busbars and external conductive connections, balancing high mechanical strength with high conductivity and strong resistance to atmospheric corrosion. 6063 alloy bars are widely applied in switchgear and distribution box connections, where dedicated hydraulic crimping tools ensure consistent crimp density and stable conductivity.

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Jiangsu Penglong Electrical Engineering Co., Ltd.
Aluminum Bar

Cold-pressed Joint

The cold-pressed joint range covers T2 copper tube joints, T2 copper rod connectors, and tee joints for secure, high-performance electrical connections. T2 copper tube joints are crimped with dedicated hydraulic tooling to ensure consistent crimp density and stable conductivity, and are suited to sealing-critical environments where oil or moisture ingress must be prevented.  Tee-shaped joints offer favorable fluid dynamics with stable, low-turbulence flow that reduces system pressure loss and energy consumption, and are widely used in power busbars, new-energy battery connections, electronic heat sinks, and corrosion-resistant chemical conductive parts, with copper-aluminum constructions combining a high-conductivity copper surface with an aluminum core for efficient heat dissipation and stable current transmission.

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Jiangsu Penglong Electrical Engineering Co., Ltd.
Cold-pressed Joint

Copper and Aluminum Bar

The copper-aluminum bar series combines copper-aluminum composite plates, transition bars, and copper-clad aluminum bars to deliver cost-effective conductive solutions. These products are widely used across power transmission and transformation systems, new energy generation and storage, rail transit and automotive manufacturing, and industrial power distribution equipment.  Transition bars combine excellent conductivity with good mechanical and processing properties at significantly reduced cost, making them suitable for high- and low-voltage switchgear, busway systems, and new energy storage busbars, while copper-clad aluminum variants add stable insulation resistance at high temperatures, strong mechanical strength, and very low water absorption for reliable performance across diverse environments.

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Jiangsu Penglong Electrical Engineering Co., Ltd.
Copper and Aluminum Bar

Outgoing Line Board

The outgoing line board range spans epoxy laminates (3240, FR-4), non-magnetic steel (20Mn23Al), and stainless steel (1Cr18Ni9Ti, 316) boards to suit diverse electrical and environmental demands. Epoxy 3240 boards provide stable electrical insulation across a -50°C to 110°C operating range with excellent corrosion and aging resistance, while FR-4 epoxy boards are non-magnetic and combine high strength with high toughness, offering better acid, alkali, and marine corrosion resistance than ordinary carbon steel.  Non-magnetic 20Mn23Al steel boards deliver strong high-temperature oxidation and creep resistance with good intergranular corrosion resistance, 1Cr18Ni9Ti stainless steel boards add excellent resistance to chloride-ion and intergranular corrosion while meeting C5-grade standards, and grade 316 stainless steel boards round out the range with stable high-temperature insulation resistance and strong mechanical strength.

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Jiangsu Penglong Electrical Engineering Co., Ltd.
Outgoing Line Board

Casting Die

The casting die range includes epoxy 3240 pressed parts and stainless steel (1Cr18Ni9Ti, 316) pressed parts for transformer and electrical assembly applications. Epoxy 3240 press-fittings offer strong high-temperature performance with good resistance to oxidation, creep, and intergranular corrosion. 1Cr18Ni9Ti stainless steel pressed parts provide excellent resistance to chloride-ion and intergranular corrosion, remaining non-magnetic while meeting C5-grade corrosion standards.  Grade 316 stainless steel pressed parts operate across a -30°C to 180°C temperature range, offering solid mid-tier salt and corrosion resistance at a cost-effective price point.

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Jiangsu Penglong Electrical Engineering Co., Ltd.
Casting Die

Sealing Element

The sealing element range covers acrylate rubber (ACM), fluorine rubber (FPM), fluorosilicone rubber (FVMQ), and nitrile rubber (NBR) seals for a variety of temperature and chemical environments. ACM seals operate across a -20°C to 250°C range with strong resistance to salt and alkali corrosion, meeting C4-grade standards, while FPM seals extend the range to -60°C to 240°C with even stronger corrosion resistance that satisfies C5-grade requirements.  FVMQ seals are suited to -30°C to 105°C applications, offering good oil resistance at a cost-effective price point, and NBR seals complete the lineup for applications requiring reliable, general-purpose sealing performance.

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Jiangsu Penglong Electrical Engineering Co., Ltd.
Sealing Element
ADVANTAGE
Why Choose Penglong
With the development goals of "innovation, efficiency, and win-win", we provide high-quality electrical products and professional services to customers at home and abroad.
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Jiangsu Penglong Electrical Engineering Co., Ltd.
Extensive Industry Experience
With years of expertise in manufacturing power transmission and distribution components, we have a deep understanding of transformer structures, equipment requirements, and industry procurement standards. We can quickly identify customer needs and provide optimized solutions.
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Jiangsu Penglong Electrical Engineering Co., Ltd.
Stable Manufacturing Capability
Penglong has established a complete production system equipped with advanced processing facilities, supporting both mass production and customized solutions. We ensure reliable delivery schedules and long-term supply capability.
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Jiangsu Penglong Electrical Engineering Co., Ltd.
Strict Quality Control
From raw material selection and production processing to final inspection, we implement comprehensive quality management throughout the entire manufacturing process, ensuring product dimensional accuracy, electrical conductivity, and assembly reliability.
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Jiangsu Penglong Electrical Engineering Co., Ltd.
Customized Service Capability
We support customized development based on customer drawings, samples, and technical specifications, meeting different international standards, installation requirements, and special operating conditions.
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Extensive Industry Experience

Jiangsu Penglong Electrical Engineering Co., Ltd.
/02

Stable Manufacturing Capability

Jiangsu Penglong Electrical Engineering Co., Ltd.
/03

Strict Quality Control

Jiangsu Penglong Electrical Engineering Co., Ltd.
/04

Customized Service Capability

Jiangsu Penglong Electrical Engineering Co., Ltd.
Jiangsu Penglong Electrical Engineering Co., Ltd.
Jiangsu Penglong Electrical Engineering Co., Ltd.
Jiangsu Penglong Electrical Engineering Co., Ltd.
Jiangsu Penglong Electrical Engineering Co., Ltd.
Jiangsu Penglong Electrical Engineering Co., Ltd.
Jiangsu Penglong Electrical Engineering Co., Ltd.
application
A Wide Range of Industries
Transformer Industry Read More
Jiangsu Penglong Electrical Engineering Co., Ltd.
Power Transmission & Distribution Industry Read More
Jiangsu Penglong Electrical Engineering Co., Ltd.
Metallurgical Industry Read More
Jiangsu Penglong Electrical Engineering Co., Ltd.
Electrochemical Industry Read More
Jiangsu Penglong Electrical Engineering Co., Ltd.
Industrial Furnace Industry Read More
Jiangsu Penglong Electrical Engineering Co., Ltd.
New Energy Industry Read More
Jiangsu Penglong Electrical Engineering Co., Ltd.
News
Providing You with
The Latest News
Sep 18, 2026
Company News
Jiangsu Penglong Electric Engineering Co., Ltd.
Jiangsu Penglong Electric Engineering Co., Ltd. is a specialized manufacturer integrating R&D, design, and production of power transmission components, high-current conductor systems, and industrial electrical connection products. With extensive industry experience, the company specializes in high-current conductive connections, copper-aluminum transition solutions, transformer components, and industrial furnace conductor systems. Supported by a complete manufacturing system and modern equipment, Penglong offers customized and large-scale production. Its products are widely used in transformers, industrial furnaces, electrolysis equipment, switchgear, and power distribution systems. Main products include busbars, conductive rods, copper-aluminum connectors, terminals, flexible connectors, water-cooled cables, and other custom conductive components.
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Jiangsu Penglong Electric Engineering Co., Ltd.
Sep 18, 2026
Industry News
High-Performance Flexible Coupling Launched for Industrial Power Transmission
As industrial automation and precision transmission systems develop rapidly, reliable connection and vibration damping components are increasingly required. A new generation of flexible coupling has been introduced to meet diverse power transmission needs. This flexible coupling adopts optimized elastic structure design. It can effectively compensate for axial, radial and angular misalignment between shafts, absorb vibration and cushion impact during operation. Featuring compact structure, easy installation and low maintenance, it delivers stable torque transmission. Suitable for pumps, fans, reducers, automation equipment and general machinery, the product supports various material options to adapt to different temperature and working conditions. It helps improve equipment running stability and extend service life of transmission systems. The new flexible coupling provides a cost-effective transmission solution for general machinery and automated production lines, supporting stable operation of industrial equipment.
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High-Performance Flexible Coupling Launched for Industrial Power Transmission
Sep 18, 2026
Industry News
High-Performance Epoxy Die-Casting Series Debuts, Empowering Advanced Industrial Insulation and Packaging Solutions
With the rapid upgrading of new energy, power transmission, industrial electronics and high-end manufacturing industries, the demand for high-reliability insulation, sealing and structural protection components continues to rise across the global supply chain. To address the pain points of traditional casting products such as poor environmental adaptability, unstable insulation performance and insufficient structural durability, the upgraded epoxy die-casting series products have been officially launched for the market, bringing standardized, high-performance and cost-effective integrated casting solutions for multiple industrial scenarios. The new-generation epoxy die-casting series adopts optimized vacuum integral die-casting molding technology and modified epoxy resin formula, abandoning the traditional splicing and adhesive bonding structure. Through precise bubble-free casting and one-piece curing molding, the products achieve excellent overall structural integrity, effectively eliminating hidden dangers such as cracking, leakage and insulation failure caused by structural gaps. Compared with conventional epoxy casting products, the upgraded series features lower shrinkage, stable low exothermic curing performance and higher structural density, laying a solid foundation for long-term stable operation in complex working conditions. In terms of core performance, the epoxy die-casting series delivers comprehensive breakthroughs in safety, durability and environmental adaptability. The integral sealed structure supports high-level ingress protection, effectively isolating moisture, dust and corrosive gases in harsh environments. It possesses outstanding electrical insulation, flame retardant and explosion-proof properties, meeting stringent industrial safety standards for high-voltage power distribution and electronic packaging. Meanwhile, the series boasts excellent mechanical strength, impact resistance and temperature resistance, capable of maintaining stable physical and electrical performance under long-term high-temperature operation, extreme cold and frequent load changes, greatly extending the service life of equipment and reducing subsequent operation and maintenance costs. Tailored for diversified industrial application scenarios, the epoxy die-casting series covers standardized and customized specifications, fully adapting to core fields including new energy photovoltaic and energy storage systems, high and low voltage power distribution equipment, industrial control electronics, automotive electronic components and rail transit supporting facilities. Its flexible die-casting molding process supports personalized structural design and dimensional customization, which can meet the differentiated packaging and insulation protection needs of different equipment, and solve the industry bottlenecks of poor universality and low matching degree of traditional casting parts. In terms of production and application value, the standardized molding process of the epoxy die-casting series optimizes production efficiency while ensuring consistent product quality, realizing large-scale stable supply. The optimized resin formula and process structure effectively reduce comprehensive application costs on the premise of maintaining high performance, breaking the balance dilemma between high performance and cost control of high-end epoxy casting products. It further promotes the popularization of high-reliability epoxy die-casting technology in mid-to-high-end industrial fields, and provides more reliable basic component support for the upgrading of industrial equipment intelligence and safety standards. Industry analysts pointed out that with the continuous improvement of industrial equipment safety and durability requirements, high-performance integrated epoxy die-casting products will become an indispensable core component in the fields of new energy and power equipment. The newly launched epoxy die-casting series, with its superior comprehensive performance and wide application adaptability, will effectively fill the market demand for high-quality industrial insulation and casting solutions, and inject new impetus into the high-quality development of the global advanced manufacturing industry.
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High-Performance Epoxy Die-Casting Series Debuts, Empowering Advanced Industrial Insulation and Packaging Solutions