In the fields of power equipment, motor manufacturing, and industrial automation, insulation materials are fundamental components ensuring stable equipment operation. As electrical equipment continues to evolve towards higher power density, higher temperature resistance, and greater reliability, the market demand for high-performance insulation materials is also continuously growing. G11 epoxy fiberglass insulation boards, due to their excellent heat resistance, mechanical strength, and electrical insulation properties, have become an ideal choice for many industrial applications.
However, standard-sized boards often cannot perfectly match specific design tolerance requirements. As a professional G11 insulation material supplier, we not only provide high-quality base boards but also focus on custom size cutting and precision CNC machining services to ensure that every component delivered meets your assembly requirements.
G11 insulation board is a rigid laminate made by impregnating continuous glass filament cloth with heat-resistant epoxy resin and then pressing it under high temperature and pressure. Compared to ordinary FR4 or G10 materials, the core advantage of G11 is that it maintains excellent strength at high temperatures. Its main characteristics include:
High thermal stability: G11 maintains good mechanical strength at temperatures of 155°C and above, while ordinary G10 tends to soften under such conditions.
Excellent creep resistance: Even under continuous loads and high temperatures, G11 is not prone to permanent deformation, making it suitable for structural components in high-voltage equipment.
Chemical resistance: It exhibits good resistance to machine oil, diluent acids, and many solvents.
Based on these properties, shipbuilding, high-power power generation equipment, and other fields typically require the use of G11 materials.
Standard sizes: 1020 × 1220 mm, 1220 × 2440 mm
Thickness range: 0.5 mm – 50 mm
Color: Light green or natural color
Because different equipment manufacturers have varying dimensional requirements for insulating components, professional suppliers generally offer custom-sized machining in various specifications and high-precision CNC services.
Cutting according to drawings: Whether it’s round gaskets, irregularly shaped strips, or small blocks, we can provide corresponding blanks through precision cutting.
Reduce waste: With our customization service, you don’t need to purchase entire large sheets, effectively reducing inventory pressure and material costs.
G11 material has high hardness, resulting in significant tool wear and a tendency to develop burrs or delamination during machining. Ordinary machining plants often struggle to handle this highly abrasive material. Our CNC workshop is equipped with carbide tools and a professional dust removal system specifically for machining G11 materials, including:
Precision Milling: Strictly controlling dimensional tolerances to ensure accurate mounting hole positions.
CNC Turning: Machining rotating parts such as insulating bushings and washers, ensuring component concentricity.
Stamping and Drilling: Preventing delamination or cracking during machining, maintaining the material’s original insulation properties.
With our professional CNC machining services, G11 material is widely used in the following areas:
Electrical Insulation Components: Such as motor slot wedges, stator and rotor insulating gaskets, and transformer end insulating plates.
Mechanical Structural Components: Gears, wear-resistant liners, and fan blades suitable for high-temperature environments.
We use only Grade A electronic cloth and imported epoxy resin to ensure stable performance in every batch. The dielectric constant and withstand voltage of this product have passed factory testing.
From sample confirmation to mass production, we can handle orders from 1 to 10,000 pieces. Samples can be shipped within 24 hours.
Optimized CNC programming based on the characteristics of G11 material ensures smooth, burr-free edges, fully preserving the material’s insulation properties.
No need to waste time searching for manufacturers that can process G11. As an experienced G11 insulation material supplier, we save you the intermediate steps from material procurement to finished product processing, providing a one-stop service.
If you are developing new electrical equipment or need to upgrade existing insulation components, we are happy to provide comprehensive support.
Please send us your drawings or specific dimensional requirements (length, width, thickness), and our engineers will provide you with the best material selection advice and a competitive quote within 24 hours.
If you need our products please write down any questions, we will reply as soon as possible.
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