For a project update, call 212-461-8738  Keep checking back as that message will be updated from time to time.
Please Click Here for a great site with info on the history of this project and Dennis Lee.

 

Negawat& Tesla Coil Demo  

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For a short video clip click on GentleJack

You are looking at the world's first and only vibrationless and noiseless jackhammer ... a dream come true for anyone who operates a jackhammer. By efficiently distributing almoswpe6.jpg (47748 bytes)t all of the compressed air into the business end of the breaker, this revolutionary jackhammer can produce more work at higher speed with less wear and tear on the operator. There is such minimal vibration, you can balance on a quarter on it while breaking concrete! Less vibration means longer part life and less metal fatigue failures, not to mention more productive work time from workers. And, with half the moving parts of conventional jackhammers and a smaller air compressor, the Gentle Jack can save thousands of dollars per year in operating and maintenance costs. Less stress, less noise, less money!  And if all of that wasn't enough, the Gentle Jack costs less to buy.

wpeE.jpg (6171 bytes)Key Benefits

  • Benefit 1 Minimal Vibration.   An operator can use longer without fatigue.
  • Benefit 2 Lower operating cost.  This hammer uses 1/5 the horsepower as a conventional hammer and the compressor and the hammer can be moved in the back of a pick-up truck in a neat, compact package on wheels that two men can pick up.
  • Benefit 3 Less stress, less noise, less money!

The Jackhammer   

Features

  • Hammer is Vibrationless, Noiseless, Compact
  • 11 HP Lightweight Portable Air Compressor
  • Half the moving parts as with conventional hammer
  • Operates at 35 lb. push from operator
  • Requires only 50 psi
  • Uses 21cui.ft./min
  • Hammer comes apart in minutes for quick field repair
  • Comes with General purpose bit and Hammer holder
  • Accessory bits available, include: asphalt cutter, point bit, spade bit, tamper

Applications

  • Breaking concrete
  • Cutting asphalt paving
  • Compacting, tamping
  • Driving stakes – setting forms
  • Driving posts
  • Driving pipes for water wells
  • Driving interlocking shore line steel
  • Cutting tree roots
  • Cutting frozen earth
  • Cutting stone
  • Making holes in rock and other material
  • Cutting rebar and concrete
  • Cutting rivets and bolts

Specifications

Hammer Weight 80 lbs
Breaker Weight 10 lbs
Compressor Weight 300 lbs.
Asphalt Cutter 7 lbs.
Chisel Point 6 lbs.
Tamper 24 lbs.
Breaker with GAD 41” Long
Power Unit Dimensions 3’ x 2’ x 1.5’
Operator Force Required 35 lbs.
Energy Feedback to Operator 3 foot lbs./min.
Operating Control Automatic
Parts in Breaker 27
Noise at 7 meters 80 D.B.A.
Noise at 1 meter 96 D.B.A.
Vibration Amplitude .003”

 

UCSA products cannot be offered in the following states; Vermont, Alaska, Idaho and Maine (Their loss :)

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