1020x1220mm Orange Bakelite Sheet | Industrial-Grade Electrical Insulation

In electrical engineering and precision manufacturing, the correct selection of insulation materials directly affects the safety and operational stability of equipment. This article introduces a common specification in engineering applications—the 1020x1220mm orange bakelite sheet—focusing on its specifications, electrical performance, and industrial applications.

1020x1220mm Orange Bakelite Sheet Overview

Bakelite sheet, also known as phenolic laminated paperboard, is made by impregnating insulating paper with phenolic resin and then laminating it under high temperature and pressure. Its orange appearance is primarily used as an industrial identification color, facilitating the identification of high-voltage insulating components in electrical equipment.

1020x1220mm is one of the standard supply sizes for this material in the industrial field, suitable for most machining and electrical assembly scenarios.

Bakelite Sheet Size Advantages: Why Choose 1020x1220mm?

1020x1220mm (approximately 3 feet x 4 feet) is a common size for bakelite boards, offering the following practical advantages: 

High material utilization: 

This size is suitable for cutting and framing various metric and imperial workpieces, such as PCB partition boards and transformer insulation gaskets. This helps reduce waste and improve material utilization efficiency.

Good equipment compatibility: 

1020x1220mm bakelite boards fit the standard worktables of most CNC engraving machines, wire cutting machines, and other processing equipment, requiring no secondary splicing or special fixing, facilitating direct processing.

Convenient storage and transportation: 

The moderate size of this board facilitates handling, storage, and transportation, reducing storage space requirements and the risk of damage during logistics.

Analysis of Electrical Insulation Performance of Industrial-Grade 1020x1220mm Bakelite Sheet

Dielectric Strength: 

This bakelite sheet possesses excellent insulation resistance and voltage withstand performance, effectively blocking high-voltage current conduction. It is suitable for components such as electrical switches, insulating partitions, and gaskets.

Mechanical Strength: 

This material has good tensile and bending strength, a dense structure, and can withstand certain mechanical loads. It can also be drilled, punched, and milled, and its machined edges are smooth, meeting the requirements of mass production.

Heat Resistance and Flame Retardancy: 

The product typically meets UL94 HB or V0 flame retardant standards, exhibits good dimensional stability under high-temperature conditions, and possesses self-extinguishing properties when exposed to electric arcs or sparks.

Moisture Resistance: 

Compared to ordinary wood or paper materials, this bakelite sheet has a lower moisture absorption rate after high-pressure resin molding, maintaining relatively stable insulation performance in humid environments.

1020x1220mm Orange Bakelite Sheet Industrial Applications

Motor Manufacturing: 

Used for components such as end caps, base plates, and partitions, providing both insulation and support functions.

Transformers and switchgear: 

Suitable for internal partitions, liners, and end plates, enhancing high-voltage insulation protection and reducing short-circuit risk.

Industrial machinery and equipment: 

Used for isolation and protection of wear-resistant parts and electrical contact areas.

Electronic and automation equipment: 

Used for PCB support boards and precision substrates, maintaining structural stability in high-temperature environments.

Key Considerations for Purchasing 1020x1220mm Orange Bakelite Sheets

Insulation Rating: Confirm that the product's voltage and heat resistance ratings match the equipment's operating conditions.

Sheet Thickness: Select an appropriate thickness based on mechanical strength requirements to ensure load-bearing capacity.

Material Source: Prefer products from manufacturers using high-purity phenolic resin and stable manufacturing processes.

Processing Support: Inquire whether the supplier provides customized processing services such as cutting and drilling.

Standard Compliance: Refer to relevant standards such as IEC and ASTM to confirm that the product meets industry safety requirements.

1020x1220mm orange bakelite sheets, with their standard dimensions, stable insulation properties, and good processing adaptability, are widely used in various industrial electrical and manufacturing scenarios.

For technical parameters or quotations for this specification, please provide your project requirements or usage conditions, and we will provide corresponding support based on the actual situation.