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Empowering the Future of Science Education

The Eisco 400,000 Volt Van de Graaff Generator Kit is a powerful electrostatics demonstration system designed for physics classrooms, STEM labs, and science educators. Capable of generating up to 200,000–400,000 volts, this high-voltage generator vividly demonstrates the principles of static electricity, charge transfer, and electric fields in an engaging and memorable way.

A Van de Graaff generator works by transporting electric charge using a moving belt to accumulate high voltage on a hollow metal sphere, producing extremely high potential at very low current—making it ideal for safe educational demonstrations.

This all-inclusive electrostatics kit includes the generator and 10 interactive attachments that allow instructors to demonstrate phenomena such as hair-raising static electricity, ionization, electrostatic discharge, and charge distribution. The included accessories—such as a Faraday’s pail, electric whirl, neon tester, and pith ball apparatus—enable a wide variety of experiments that illustrate key electricity concepts.

The generator features a large 9-inch metal dome mounted on an insulated column, allowing effective charge accumulation and visible electrostatic effects. A removable discharge wand and additional accessories allow instructors to safely control and demonstrate high-voltage discharge arcs.

Ideal for middle school, high school, university physics courses, and STEM outreach demonstrations, this electrostatic generator kit transforms abstract electrical concepts into exciting, hands-on experiments that students can see and understand.

Typical Experiments & Demonstrations

• Static electricity and charge buildup
• Triboelectric effect demonstrations
• Conductors vs insulators experiments
• Ionization and corona discharge
• Electric field visualization
• Electrostatic charge transfer

Included Components

• Van de Graaff generator with large metal dome
• Grounded discharge wand
• Faraday’s pail
• Perspex cylinder with dancing balls
• Electric whirl / spiked wheel
• Pith ball apparatus
• Neon tester
• Point discharge attachment
• Comb and additional accessories
• Instruction and activity guide

Specifications

• Maximum Voltage: Up to 400,000 V
• Typical Discharge Arc: 2–8 cm
• Dome Diameter: 9 in
• Generator Height: ~24 in
• Base Size: ~9 × 10 in
• Application: Electrostatics demonstrations and physics education

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