Jumbo Wimshurst Machine – Vanguard II Model

The Sci-Supply Jumbo Wimshurst Machine – Vanguard II Model is a powerful electrostatic generator designed for classroom demonstrations of static electricity, electric charge, and high-voltage discharge. The machine operates using electrostatic induction, where two counter-rotating discs with metal sectors accumulate and separate electrical charges as they spin.

As the discs rotate, the machine builds up a high voltage potential between the metal discharge terminals. When the voltage becomes large enough, a visible spark jumps across the spark gap—creating an exciting and memorable demonstration of electrostatic energy.

This Vanguard II jumbo model features large 11-inch acrylic charging discs, providing increased charge capacity and longer sparks compared to smaller classroom machines. The unit includes a sturdy laminated wood base, precision brushes, and durable spray-coated sectors designed for long-lasting performance.

Operation is simple: attach the hand crank and begin turning. Within seconds, the machine begins generating static electricity and producing dramatic sparks up to 4 inches in length.

This device is ideal for demonstrating:

• Static electricity and electrostatic charge buildup

• Electric potential and spark discharge

• Energy storage and transfer

• Principles of electrostatic induction

For even more dramatic demonstrations, pair the Wimshurst machine with an ionization tube or other electrostatic accessories.

Key Features

• Large 11" Acrylic Discs – Larger discs generate greater charge buildup and longer sparks

• Up to 4" Spark Discharge – Produces impressive high-voltage sparks for classroom demonstrations

• Durable Wood Base – Laminated base provides stability during operation

• Precision Neutralizer Brushes – Light-touch brushes ensure reliable charge transfer

• Hand-Crank Operation – Simple mechanical operation requires no batteries or external power

• Ready to Use – Minimal setup required; simply attach the crank and begin generating sparks

Classroom Applications

Perfect for physics and physical science demonstrations including:

• Electrostatic charge generation

• Electric field visualization

• Spark gap demonstrations

• Capacitor storage concepts

• Historical electrostatic generator studies

Wimshurst machines were originally developed in the late 19th century by James Wimshurst and were used in early electrical experiments and research.

Specifications

• Overall Height: 15 in (375 mm)

• Disk Diameter: 11 in (275 mm)

• Maximum Spark Length: Up to 4 in (100 mm)

• Base: Wood laminate

• Operation: Hand-cranked electrostatic generator

What's Included

• Vanguard II Wimshurst Machine

• Hand crank

• Instruction guide with operating tips

Recommended Accessories

• Gas ionization tube

• Replacement drive belts

• Leyden jars or spark accessories