[TheForge] Krause/Nazel type air hammer

Fri Dec 6 21:03:01 2002

No plans, just his booklet on how Nazel's work with a few pages on his 
prototype.

It looks like spool valves might work; if not, I'm going to have to 
figure out lapping.

Steve

lama wrote:
> Steve, I don't know about yardsticks, but I don't think that one
> can compare Kinyons & Nazels. It's like apples & oranges.
> I would love to have a Nazel,,,, and if I could find one in
> working order for $1,000 I would grab it. I guess that the bottom
> line here is that we are talking about folks building their own air hammers.
> The Nazel is not a homemade hammer, the Krause & Kinyon are.
> Kinyon = (no machining necessary) (you need a compressor)
> Krause = (advanced machining skills required) (you need a lathe etc.)
> Now if Krause would offer the plans AND sell "the valve", I'll bet that
> he would have a lot of business. I know that I would seriously consider
> using that system on my big hammer, but I don't have any machining
> skills and I don't have a lathe.  I still haven't found out if there are
> published plans available. Where? how much?
> 
> dave m
> 
> 
> ----- Original Message -----
> From: "Steve Smith" <[email protected]>
> To: <[email protected]>
> Sent: Monday, December 02, 2002 8:46 AM
> Subject: Re: [TheForge] Krause/Nazel type air hammer
> 
> 
> 
>>It sounds like my Kinyon comments are being taken as critical of the
>>design. That was not at all my intention. I realize the hammer can do
>>lots of useful work, and certainly respect Kinyon's contribution.
>>
>>The way I think about the difference between the hammers (please add or
>>subtract as you folks see it) is as follows:
>>A Kinyon is like moving a ball bearing with a yardstick. The bearing
>>moves just fine, but when you try to reverse it, it takes a bit to
>>regain control.
>>A Nazel is like moving a ball bearing with two yardsticks, one on each
>>side. You can put it right where you want it.
>>
>>The ball bearing is the hammer head, of course, yardsticks are air.
>>
>>Hey, please keep up this discussion; I'll be out of town until Thursday.
>>
>>Steve
>>
>>lama wrote:
>>
>>
>>>air through the spool valve to the top of the cylinder, forcing it down.
>>
> A
> 
>>>little
>>>exhaust causes a little movement of the cylinder (ram, head, top die)
>>
> and a
> 
>>>light tap. A heavy foot on the exhaust valve (treadle) causes a heavy
>>
> blow.
> 
>>>This hammer hits a lot harder than my 50# Little Giant ever did.  The
>>>downward
>>>movement of the ram activates a pilot switch. The pilot switch tells the
>>>spool
>>>valve to rout the air to the bottom side of the cylinder, thus forcing
>>
> the
> 
>>>cylinder
>>>upward and activating the pilot switch once again which tells the spool
>>>valve to
>>>rout the air to the top of the cylinder, thus forcing the downward
>>
> stroke
> 
>>>and
>>>the cycle keeps repeating. The Kinyon hammer does not have the ability
>>
> to
> 
>>>clamp & hold a piece of work. Bob Bergman's "KA-75" can do that quite
>>
> well
> 
>>>as will the "Blue" but @ $4,000, they are out of my price range. The
>>
> Kinyon
> 
>>>is
>>>not a Nazel or a Chambersburg or any of the Chinese / Turkish Nazel
>>>knock-offs.
>>>They cost $8k - $30k and are way out of my price range. The Kinyon cost
>>>about $1,000 or less depending on your local scrap yard. The bottom line
>>
> is
> 
>>>that
>>>the Kinyon design works quite well and there are lots of them around. I
>>
> can
> 
>>>think
>>>of 7 Kinyons in a 100 mile radius.
>>>I am not down on the Krause hammer at all. In fact I think that it's
>>>probably a
>>>great idea. I would love to see plans because there is still time to
>>
> make my
> 
>>>big
>>>hammer in that manner.
>>>dave m
>>>
>>>----- Original Message -----
>>>From: "Steve Smith" <[email protected]>
>>>To: <[email protected]>
>>>Sent: Sunday, December 01, 2002 6:15 PM
>>>Subject: Re: [TheForge] Krause/Nazel type air hammer
>>>
>>>
>>>
>>>
>>>>Well, I'd like something larger than my current 25 pound LG. This gets
>>>>into a 5-7.5HP compressor pretty quickly from what I hear.
>>>>
>>>>I don't mean to bad mouth the Kinyon design; from what I understand (I'm
>>>>hoping Dave M. will jump in and improve me), Kinyon's push on one side
>>>>of the piston, then push on the other side. You can do a lot of work on
>>>>this style hammer, but it doesn't seem like you have a lot of control of
>>>>the ram position.
>>>>
>>>>Steve
>>>>
>>>
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> 
> 
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