The pin-type composite insulator uses silicone rubber as the raw material, and the product is molded in one piece through high-temperature integral molding. The 33kV composite pin insulator is designed for medium-voltage overhead distribution systems to provide reliable insulation and mechanical support for conductors.
Product Detail
The 11-33kV Polymer Composite pin insulator is designed for medium-voltage overhead distribution systems to provide reliable insulation and mechanical support for conductors. Compared with traditional porcelain insulators, composite pin insulators feature light weight, excellent pollution resistance, and superior mechanical strength, making them widely used in modern power transmission and distribution networks.
Manufactured with a fiberglass reinforced epoxy rod, high-quality silicone rubber housing, and corrosion-resistant metal fittings, the11-33kV composite pin insulator offers long service life and stable performance under harsh environmental conditions such as heavy pollution, coastal areas, and high humidity regions.
Our insulators are widely applied in 11kv-33kv distribution lines, substations, and rural electrification projects, helping utilities improve line reliability and reduce maintenance costs.
The Polymer Composite Pin Insulator uses silicone rubber as the raw material, and the product is molded in one piece through high-temperature integral molding
Characteristics of pin-type composite insulators: light weight, convenient construction, significantly speeding up the construction process, superior product performance, and strong puncture resistance.
Purpose: To be fixed on the iron cross arm to support the conductor, providing mechanical load and insulation;
Colors: red, brown, gray, or as per customer's request;
Models can be customized according to customer's requirements
ZheXi Electric Power's pin type insulator delivers superior reliability for 11kv–33 kV distribution lines. Combining a glass fiber-reinforced epoxy resin core with an industrial-grade silicone rubber sheath, this overhead electric power insulator integrates a single-piece structure for direct cross-arm mounting. Experience space optimization, corrosion resistance, and IEC 61109 compliance—engineered for the future.
The silicone rubber housing provides strong hydrophobicity and anti-pollution capability, ensuring stable insulation performance even in contaminated environments.
The fiberglass reinforced core rod provides excellent tensile and bending strength, ensuring reliable conductor support under heavy loads.
Unlike bulky suspension or post insulators, the pin type insulator installs vertically with no stringing hardware. This compact design reduces pole footprint by ~30%—ideal for urban grids with height limits.
ZheXi's silicone rubber sheds repel salt, dust, and industrial contaminants. Hydrophobic transfer technology enables rainwater self-cleaning, outperforming crack-prone porcelain insulators in coastal/industrial zones.
One-piece assembly slashes labor/time costs versus multi-component alternatives. Composite materials resist UV degradation, vibration fatigue (e.g., railways), and seismic stress—ensuring >20-year service life.
We provide OEM and customized production services for power utilities and EPC contractors. Tailor every component to your grid:
Design: Creepage distances (300–7150 mm), shed profiles.
Electrical: Voltage ratings (11–500 kV), custom BIL.
Aesthetics: Colors (red/gray/OEM), laser-printed logos.
Our engineering team can also develop solutions according to project drawings and technical specifications.
Contact us today to get technical specifications, competitive pricing, and professional support for your power transmission projects.
Deploy ZheXi's pin type insulator in high-risk environments:
Urban Distribution: Compact tunnels, space-constrained poles.
Harsh Zones: Coastal salt spray, desert sand, industrial fallout.
Infrastructure: Railways, airports, and seismic regions.
The composite pin insulator is widely used in various power infrastructure projects, including:
Overhead power transmission and distribution lines
Utility pole line systems
Rural electrification projects
Power substations
Coastal and high-pollution areas
Its strong pollution resistance makes it particularly suitable for industrial zones, desert environments, and coastal regions.
ZheXi Electric Power—Your grid deserves the reliability of a certified pin type insulator.
| Feature | Composite Insulator | Porcelain Insulator |
|---|---|---|
| Weight | Light | Heavy |
| Pollution Resistance | Excellent | Moderate |
| Mechanical Strength | High | High |
| Installation | Easy | More difficult |
| Maintenance | Low | Higher |
Because of these advantages, many power utilities are gradually replacing traditional porcelain insulators with polymer composite insulators.
Product Parameters
| Model | Rated Voltage (kV) | Rated Mechanical Bending Load (kN) | Structure Height (mm) | Minimum Arc Distance (mm) | Minimum Creepage Distance (mm) | Power Frequency 1 min Wet Withstand Voltage (kV) |
| FPQ-11/3 | 11 | 3 | 380 | 160 | 410 | 42 |
| FPQ-33/5 | 33 | 5 | 540 | 290 | 910 | 95 |
ZheXi Electric Power: Manufacturing Authority
Core Rod: 70–210 kN high-tensile epoxy resin.
Sheds: UV-stabilized silicone rubber with hydrophobic transfer.
German Dekomo injection vulcanizing machines ensure uniform density and IEC-compliant tolerance. Annual capacity: 500,000+ units.
Triple Testing: ISO 9001-certified material screening, in-process electrical checks, and final IEC 61109 validation (BIL: 95–2050 kV).
Full Traceability: Batch-specific compliance records.
Our company utilizes the world's most advanced injection vulcanizing machine from the German brand DekoMo, imported from Germany, which offers higher efficiency and more stable quality
Polymer Composite Pin Insulator
Polymer Composite Pin Insulator
Polymer Composite Pin Insulator
FAQ
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Can we print our trademark or company name on your product or package?
OEM and ODM orders are warmly welcomed, we have rich successful experience in OEM projects. In addition, our R&D team will provide you with professional suggestions.
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How does your company do in terms of quality control?
1) We choose all raw materials to be of high quality.
2) Professional and skilled workers pay attention to every detail in handling the production process.
3) The quality control department is specialized in quality inspection for each process.
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How can I get samples to test your quality?
We can provide free samples for you to test and check, just bear the freight cost.
Contact us to know more about our products, our professional team will serve you and customize it according to your requirements.
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