Splitting Wood With a Pneumatic Jackhammer

[kellog]

BeGreen,

Have never used one of those little units. I would be surprised if they are fast with so little horsepower running inefficient hydraulics but again I have no experience so I cannot say.
I compare mine with an 8 hp hydraulic. I’ll let someone else compare the 8 hp to the little one.

Andre B,

You are very observant. I agree with your point of HP. I can split wood by hand with a maul and I cannot develop more than 1/3 hp at best. Therefore you don’t need much more than that in a splitter if it is set up right.

Yes, there is a set of open miter gears between the large screw and the small shaft underneath.

Could change to a fixed wedge design but may lose some efficiency from the elasticity of the wood. I wanted to get full impact on the wedge.

Good point on the “shark tooth”. Consider it gone or at least truncated.

 

[BrotherBart]

Oh heck, do it like this:

http://www.youtube.com/watch?v=UngMpN35SX4

 

[restorer]

Great application of principle. If this is your design, draw up some plans and instructions and make yourself some money. Think you have a market on this site alone for hundreds, unless you want to manufacture them yourself and sell them. You'll lose the cheapies, but this is really a great adaptation.

Have a friend who modified an ironworker trip hammer. Makes grape leaves for arbors at $6.00 each. Takes about 30 seconds start to finish. He tweaked the stroke and the contact surfaces. He can do them on 1/4 in.stock to 1/128 aluminimum with a few adjustments. But he hates to swing a hammer.

 

[kellog]

Uncle Rich,

My thought was to have them manufactured. Not sure most people have the capability to make something like that from plans. I already have all the drawings because I draw everything formally before I make it.

I don’t think it’s a stretch to get into this business except for the marketing part, which is always the most difficult part for any business.

 

[restorer]

Well, you certainly have the attention of this group. Maybe a good market source, and also a source for marketing.(Did that make any sense?) How many here would buy at the right price?

 

[Andre B.]

Oh heck, do it like this:

http://www.youtube.com/watch?v=UngMpN35SX4

I have always liked seeing what happens after someone says the words.
"Need more powder"

 

[kellog]

Uncle Rich,

I guess that marketing part is going to be tougher than you think. Thanks for trying.