N-100 Van de Graaff Generator


Without a doubt the most attention-getting week in any physical science course is when the students get an up-close experience with the Van de Graaff generator. There’s a lot more to be learned, however, than just how to make your hair stand up.

SKU: N/A Category:


Electrostatic experiments are vital to a well-rounded experience in understanding and appreciating the complexity of electricity; i.e. where charges reside, how they behave, and how they affect their surroundings.  The Van de Graaff is key in piquing the curiosity of students into this fascinating world.

A rugged unit that will develop potentials up to 350,000 volts on the polished, anodized dome. Provides the power to execute all the basic electrostatic demonstrations on an energetic and dramatic scale. The maximum continuous current is only about 10 microamperes, so the unit is quite safe.

The image above shows the N-100 Van de Graaff generator with the N-122L Discharge electrode.  They are sold separately.

Sparks of 8″ are usual and may go to 12-15”.

The standard machine has a negative dome, but a positive electrode machine is available.

The unit is shipped assembled and includes an extra transport belt.

Dome diameter: 25 cm

Additional information

Weight 16 lbs
Dimensions 15 × 16 × 31 in

115 v Plug, 220 v EUR Plug, 220 v Other Plug, 220 v UK Plug

Choose output type:

Negative Electrode (Standard), Positive Electrode


Replacement parts

These are only the most frequently requested parts, but please be assured that whatever you might need is readily available.

Please click part to view and order.

N-100E & N-100V

RP-601 Belt, rubber transport (AKA the belt formerly known as: N100-B)
(see video tab for replacement instructions)

RP-602 Brush electrode, lower

RP-603 Brush electrode, upper

RP-613 Collar, machined

RP-604 column, polycarbonate

RP-605 Dome

RP-606 Knob, speed control

RP-607 Motor, for 120 VAC

RP-608 Pulley, lower, wool covered, negative dome

RP-609 Pulley, upper, with axle and rubber bushings, negative dome

RP-616 Pulley, lower, for positive dome

RP-617 Pulley, upper, for positive dome

N-100V only

RP-610 Rheostat (N-100V only)

RP-611 Resistor, 100 ohm, 25 watt (N-100V only)

RP-612 Switch, On-Off (N-100V only)


Van de Graaff generator

Hair Raising Demonstration

Replacing the belt


You may also like…