George Lendich wrote:

Paul,
From my previous investigations (on other products) I've found die
casting very cheap to manufacture the items (cheaper) than sand castings.
However the big cost of having the dies made, is the stumbling block.
I guess it boils down to how many over how long and batch numbers
to do a cost benefit analysis.

If one could acquire the dies at a very low or reasonable price, there
would be cost savings to the overall process of parts at the same time
leaning toward greater quality assurance (high quality/ consistancy)
and therefore 'value added' to the overall process.

A most recent example, although not typical, and a rather large
item, the verbal Quotes were :-
Sand Casting -   $1,000.00 Ea
Die Casting _        $200.00 Ea
Die Cost -       $100,000.00 One -off
Also the die castings were a very nice finish.

First Job - Foundary
Last Job - Management/ Logistics
Hope it helps!
 George (down under)

Russell Kent wrote:

So the payback period is 125 units.  That would be 63 engines (2 rotor housings
per engine).  Is that a very hard number to reach?  Doesn't seem like it.

Russell Kent

I think the sand cast casting cost is a bit high. The sand cast pattern however
could cost over $1000.

Paul Lamar


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