Rambler Metals & Mining Share Discussion Threads

[saucepan] 05/6/2012 11:19

link please?

[kiwimonk] 05/6/2012 11:11

new video interview with G.O on ProAct

[killing_time] 05/6/2012 10:49

это; дей;стk4;ит 77;ль
085;о не пом;огk2;ет люд;ям, кот;орm9;е не мог;ли про;чиm0;ат00; рус;скl0;й язы;к.

[snowydays] 05/6/2012 09:36

I think this article makes a very good point.

Nice to see the Russians taking an interest.

[k4r] 30/5/2012 18:11

Q2 2012 presentation is on the site - giving the facts as the company see them:

[chipperfrd] 30/5/2012 10:34

Ore to the flotation circuit has to be passed via the crusher and then the milling circuit. So it sounds as though they are batch processing during setting up rather than running continuously. Therefore simply dividing total ore by 14 x 24 hours is (IMO) not providing a representative indication of future 24/7 operations.

[snowydays] 30/5/2012 09:59

"Live ore commissioning of the copper concentrator officially began on 14 May 2012. Over the last two weeks, approximately 6,624 tonnes has been processed at an average throughput of 35 tonnes per hour (tph)."

Throughput of just 473tpd. The 35tph probably refers just to the flotation circuit, not the mill.

[chipperfrd] 30/5/2012 09:15

Yes, the recovery is good news and the throughput at c. 840tpd is running near the top end of expectation.

Pretty impressive grades from some of those new holes as well!

[wellum1959] 30/5/2012 08:45

Impressed with the way the commissioning has progressed.

[cfro] 30/5/2012 08:41

Yes, excellent news this morning.

[chipperfrd] 30/5/2012 07:59

Well done to the team at Rambler :-)

[redhill] 30/5/2012 07:45

No, there is plenty of news coming from the company.

[ned] 30/5/2012 07:19

Newsflow to die for.

George isn't going to let the share price slip if he can help it!

[ned] 30/5/2012 01:08

Perhaps George O's over 700tpd indicates that the plant wasn't running full time due to any ongoing tweaking or preparations for switching to copper production that necessitated interrupting gold operations and he had discounted some or all of it in his calculation of what he viewed as the actual achieved throughput per day.

It wouldn't take much to change the FML spam to RMM - maybe we could drum up a few buyers !!

ned

[king suarez] 29/5/2012 23:17

Yep - getting sick of the FML ramps across all investor boards. Time to buy was probably when the share price was around 2.5p, rather than 5.5p (imo). Their market cap is way above RMM, although they have more cash at bank. Think we have less political risk and have already proven production capabilities (with the gold) so happier here.

Everyone else - thanks for your input. Lots to learn for me as someone with limited knowledge of mining processes etc :) thankful for the info. Also, as Chip points out, think we are all interested in the same thing hear so nice if we can share info without winding each other up!

[snowydays] 29/5/2012 21:30

The difference in reported tonnage may be due to the difference between "wet metric tonnes" and "dry metric tonnes."

Most ore is porus to some extent and so contains some water. In addition water is added to make the ore into a slurry which is easy to pump. The slurry may contain 15% water and is measured in "wet metric tonnes."

Ramblers press release did specifically refer to wet metric tonnes. So it may be that the 700tpd throughput is not as impressive as it seems, and actually corresponds to only 600tpd of dry ore.

If that is the case it raises the question of whether the hoped for throughput of 800tpd is wet or dry and whether the ore grades quoted are wet (i.e. including water content in the ore) or dry.

[chipperfrd] 29/5/2012 20:38

wellum,

The throughput at the mill should already effectively include mining losses through ore dilution which will be apparent by head grade presented to the mill.

Process losses are reflected in the recovery % but this results in oz/lbs/tonnes of product recovered.

It is the throughput to the mill (ie ROM ore that is loaded into the mill) that is reported as throughput. So in the case above, that would be 650tpd.

[wellum1959] 29/5/2012 20:18

King Sharez, the average 650 tpd in the article refers to throughput. This to me means the total feed through the process before losses. The final production figures of course include the losses,so around 590 tpd, which is not far away from the published monthly production.

[chipperfrd] 29/5/2012 19:46

snowydays,

It is your failure to acknowledge any inputs that attempt to guide or correct, or even discuss some of your assumptions that I find annoying and dismissive.

We all make mistakes or need to learn, but it helps if there can be a little more give and take on both sides and at least some acknowledgement when an honest opinion or research info is supplied in good faith.

As for the current and near-future throughput. My interpretation is as follows:

- the crusher is sized well above the concentrator's nominal 1,000tpd, and will likely run for just 16 hours per day or less in order to match milling capacity.

- the milling circuits are sized at a nominal 696tpd but are dependent on ore hardness and have been estimated in a range of 693-890tpd. Only commissioning will prove the steady-state rate which can be expected and even then some variability of the ores can be expected.

Ore from the 1806 zone has been used since start-up at Ming and may or may not be representative of the possible throughput from the 1807 zone. Rambler has reported decent peak throughputs but the true test will be from now on as the copper-rich ores are mined and processed.

It may well be that the milling circuit at Nugget Pond will need to be refurbished to allow maximum throughput of 1,000tpd or they may well decide to manage at a lower rate whilst waiting for a new mill at the Ming site if a FS proves it's economics.

AIMHO of course!

[king suarez] 29/5/2012 19:16

Hmmm possibly...

That would take make it more like the 650 tpd though, as quoted here:



Perhaps he was referring to May production only when he stated "now running at over 700 tpd"?

Worth noting that that best single day throughput was 845 tpd, and it's anticipated that the copper will throughput will be higher than the gold, due to softer material used.

[wellum1959] 29/5/2012 18:52

My thoughts are that the difference you see, is due to the 91% recovery efficiency.