Forums
New posts
Search forums
What's new
New posts
Latest activity
Members
Registered members
Current visitors
Charts
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Gold Prospecting
Small Scale Gold Mining
Flexicone centrifugal concentrator
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Help Support Prospecting Australia:
This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
Message
<blockquote data-quote="Goldtalk Leonora" data-source="post: 573052" data-attributes="member: 5638"><p>Knudsons dont use/have a pressurized fluid bed...it's simply the bowl with one or two 'scrapers" that run next to the edge of the bowl to keep things fluid. Nelsons and Falcons inject water. An origional Knudson from Mineral Technologies in QLD will set you back $18k. There are two aftermarket Knudon bowl builders...one in Perth and one in Kalgoorlie....both are actually well made. The key is to look at the 'wobble' at the top edge of the bowl. The 'truer' it runs the better the recovery. Yes, you need to clean them out several times a day.....who cares? if your catching gold then I would clean them out every hour!! $9500 for a knudson copy is a fair price....and they are well made. The other thing about knudsons Vs nelsons is that the knudsons RPM is around 105...so nice and slow. Nelsons are over 1000rpm so you really need to be onto your maintenance with regards to bearings etc. Knudsons are a much better and simpler 'bush' unit. The Kalgoorlie knudsons also run a variable speed drive which is important depending on the dirt your running.</p></blockquote><p></p>
[QUOTE="Goldtalk Leonora, post: 573052, member: 5638"] Knudsons dont use/have a pressurized fluid bed...it's simply the bowl with one or two 'scrapers" that run next to the edge of the bowl to keep things fluid. Nelsons and Falcons inject water. An origional Knudson from Mineral Technologies in QLD will set you back $18k. There are two aftermarket Knudon bowl builders...one in Perth and one in Kalgoorlie....both are actually well made. The key is to look at the 'wobble' at the top edge of the bowl. The 'truer' it runs the better the recovery. Yes, you need to clean them out several times a day.....who cares? if your catching gold then I would clean them out every hour!! $9500 for a knudson copy is a fair price....and they are well made. The other thing about knudsons Vs nelsons is that the knudsons RPM is around 105...so nice and slow. Nelsons are over 1000rpm so you really need to be onto your maintenance with regards to bearings etc. Knudsons are a much better and simpler 'bush' unit. The Kalgoorlie knudsons also run a variable speed drive which is important depending on the dirt your running. [/QUOTE]
Verification
Post reply
Gold Prospecting
Small Scale Gold Mining
Flexicone centrifugal concentrator
Top