Bob,

In addition to the advice you have had about auger valves, you may consider going one step further. There are volumetric dosing pumps where the "auger" or rotor is in an elastomeric stator rather than a metal tube. The ensuing seal of rotor to stator can give much more control and accuracy than a simple screw valve. 

I wrote about it: 
http://www.slideshare.net/intertronics/wp12-1-endlesspistonpumptechnologyforprecisiondispensing

Peter

--------------------------------------------------------
Peter Swanson
Managing Director
INTERTRONICS, Oxford, England
t 01865 842842
m 07785 908556
e [log in to unmask]
w www.intertronics.co.uk
 
Read our news! http://www.intertronics.co.uk/blog/blog.htm

INTERTRONICS is the trading name of Cygnet Electronics Ltd, 
registered in England No 1835617. Registered office: 
17 Station Field Industrial Estate, KIDLINGTON, Oxfordshire, OX5 1JD, ENGLAND
INTERTRONICS is certified to ISO 9001:2008
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Bob Wettermann
Sent: 23 March 2016 13:55
To: [log in to unmask]
Subject: [TN] Auger Driven Dispensers

Gents/Ladies:

We are looking at putting a non-pneumatic drive dispenser on a robot. Due to some pretty fine dots, the need for speed and for consistency and the need for some lines to be dispensed, we are looking at an auger-driven system (5-6 mil dots).

Does anyone have favorite vendors of the dispensing pumps and controllers that can be added on to a pieces of automation equipment?

Regards


______________________________________________________________________
This email has been scanned by the Symantec Email Security.cloud service.
For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________
--
Bob Wettermann
BEST Inc
[log in to unmask]
Cell: 847-767-5745

______________________________________________________________________
This email has been scanned by the Symantec Email Security.cloud service.
For more information please contact helpdesk at x2960 or [log in to unmask] 
______________________________________________________________________