what is a good price for one of those and what prices have you seen so far?  will it be prohibitively expensive?

May 14, 2013 10:40:38 AM, di.franco@aya.yale.edu wrote:
Sweet.
>Let me know if you come across a good value variable displacement pump or motor.
>I'm not having an easy time finding those on surplus center and they're well-suited to vehicle applications.
>

Proportional/servo valves as well, likewise.
>


>
>On Tue, May 14, 2013 at 10:36 AM, Hol Gaskill hol@gaskill.com> wrote:
>


>Just throwing out a few ingredients for cost estimation purposes.
>

>
HYDRAULIC POWER
>
Complete Hyraulic power unit $299
>
http://www.northerntool.com/shop/tools/product_200329758_200329758?cm_ven=natural&cm_cat=netconcepts&cm_pla=Google&cm_ite=https%3A%2F%2Fwww.google.com%2F%26
>



>
vs
>

>
11GPM 3000PSI hydraulic pump - $90, would need a motor and coupling, or a clutch/gearing to use power from an engine
>
http://www.amazon.com/Hydraulic-Gear-Pump-2-Stage-Brand/dp/B009OXYYS8/
>

>

>
Hydraulic motor $125
>
http://www.amazon.com/Chief-Hydraulic-Replacement-Char-Lynn-Diameter/dp/B00C2TMBZY/
>

>
1.5" bore, 10" stroke - $50
>
http://www.amazon.com/Mighty-Double-Acting-Hydraulic-Cylinder/dp/B00BGZ9VNU
>

>
2.5" bore 14" stroke - $60
>
http://www.amazon.com/Mighty-Double-Acting-Hydraulic-Cylinder/dp/B009LQIXJ4/
>

>
this doesn't include valves - there are manual and solenoid easily available but I would like to also develop a standard servo-actuated ball valve
>
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