Lethan Corporation Van De Graaff Generator, 325KV

Lethan Corporation
Usually Ships in 1 to 2 Business Days
$409.95 $359.95
(13 reviews)
Current Stock:
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The LC2910-HC Van De Graaff generator is designed for institutional use. It's a workhorse and proven performer in schools, universities, science museums, electrical cooperatives and NOAA facilities across the country. Don't just take our word for it. Do some searching on other major sales platforms for LC2910-HC. Feedback on this item is consistently solid. That's because we designed this Van De Graaff generator from the ground up, with every component being of premium quality. The end result is a device that will yield many years of reliable service. Not only that, but you can rely on this device to work in the most challenging environments where other Van De Graaff generators fail.

This large Van De Graaff generator stands over 2' tall, and it's large dome can produce an electric potential of 325,000 volts or more. There are a lot of exaggerated claims out there about Van De Graaff voltage. Did you know that voltage is dictated by dome size? The dome is a giant capacitor where the electrical charges accumulate. The diameter of the dome correlates to the total potential capacitance of the device. That's not the entire story though, because 2 generators with the same size dome can have very different performance characteristics. Our generator features a dome charge rate (micro current) that in some cases exceeds the competition by 5x. This means that it can pump more energy out for better experimental results, from hair raising to charging electroscopes.

This commercial generator is designed for heavy institutional use. It features a large sealed bearing electric motor that will provide years of trouble free service with no maintenance. The sealed bearing motor produces a powerful 3,500 RPM. Dual risers located inside the upper dome make belt centering a snap! Discharge wand and wire are included. Comes complete with a 1 year limited warranty!


  • Commercial Build Quality with Superior Fit and Finish.
  • Discharge Wand and Wire Included
  • Fuse Overload Protection. If the belt breaks and jams the motor (as often happens with the belt being confined), the fuse will prevent your motor from locking up
  • Built in Humidity Control Bulb Mounted in the Base. High humidity can rob the machine of up to 80% of its output capacity.
  • Quick Connect Terminal at the Top of the Main Discharge Dome
  • Quick Belt Tensioning System Conveniently Located in Upper Dome (Dual Tensioners will travel up to 1.5" / 38mm)
  • Styrofoam Storage Case for Portability
  • Convenient Discharge Wand Storage Receptacle Built into the Base (Seen on Alternate Product Photo)
  • Complete User Guide / Manual written in plain English by us.  

Product Instruction Manual

How does a Van De Graaff generator work? CLICK HERE to find out.

We sell fun and educational custom accessories for this Van De Graaff generator. CLICK HERE for a link.

Looking for helpful tips and tricks to get your generator working at peak performance? CLICK HERE for information.

1 Year Warranty* (excludes belts). 


Power Source: 110VAC (3-Prong Grounded Cord)

Input Power: 80W

Motor RPM: 3,500

Storage Ball Diameter: 10" (250mm)

Discharge Ball Diameter: 2.5" (60mm)

Overall Dimensions: (LxWxH) 11" x 7" x 26" (275mm x 175mm x 660mm)

Weight: 18lbs.


  • 5
    Van De Graaf

    Posted by Andy Pulianda on Aug 26th 2019

    Ordered three VDG Generators and they all work extremely well. The belt for one of the generators came off during transit, but it was an easy fix and worked perfectly when I turned it on!

  • 5
    Van de Graaff machine

    Posted by Daniel Newfang on Aug 3rd 2019

    Works great and extremely robust Thanks Team Sci-Supply !

  • 5
    Great Experience

    Posted by Ron on Nov 6th 2016

    Purchased as gift for my science teacher daughter. Price beat all competitors, delivery came early. Total experience was great.

  • 5
    Excellent VDG

    Posted by Mark Stephens on Feb 26th 2015

    I purchased this unit mainly for the price and modest size (it will pack into a shipping tote for transport to our outreach programs), but I've been impressed with the great quality and reliable performance.

  • 5
    Van De Graaff is awesome

    Posted by Magic Norm on Feb 16th 2015

    Nice quality machine.

  • 5
    Continued Satisfaction

    Posted by Xerox Science Consultant Program on Jan 27th 2015

    We purchased an additional Generator for our program this year as the three we purchased last year were so well received. They produce consistently good results in the classrooms. Plus,customer service has been excellent.

  • 5
    Easy to use and put together

    Posted by DrewShock on Dec 2nd 2014

    Easy to put together and use.

  • 5

    Posted by Physics instructor on Oct 17th 2014

    I purchased this VDG to demonstrate electrostatics, and though the careless UPS delivery person failed to note the "this end up" symbol and left the box in the rain, this unit was professionally packed, easy to assemble, and was remarkably functional right out the box; despite the fact that my basement is always humid, this unit produced 6- or 7-inch sparks within 30 seconds of having been activated, leaving me to wonder how powerful it will be in a warm, dry classroom! The very solid construction only adds to the unit's professional look. Well done.

  • 4
    Good quality, great value

    Posted by Bernard Clairmont on Mar 26th 2014

    purchased to do water drop corona demonstration. Decent quality design and sphere, looks like it will last a long time if not abused. Will probably rework this with a new larger sphere to run 2 belts for more space charge. Wont get a better deal for this price anywhere.