|
Advantages
extremely quiet rugged direct drive, 12 volt
permanent magnet, high torque 2 speed gearmotor
no messy fuels needed
battery can be
charged with solar panel or vehicle in the field
can be operated as a hand crank model |
Disadvantages
you
must carry the battery (motorcycle battery)
more expensive than hand-crank or leaf-blower models
not as high a material handling output as leaf-blower model
you must
purchase battery (~$20) |
|
Advantages
maximum
material handling output
least expensive of
the three models |
Disadvantages
noisier than other two models
must carry fuel
for leaf blower you must purchase leaf-blower |
|
Advantages
very
quiet no fuel or battery to carry
easily upgradeable to 12 volt model
higher gold recovery due to slower speed |
Disadvantages
smallest material handling output |
