tehnologice

Redam in imaginea RAPORT FINANCIAR simularea unui regim normal de lucru (22 zile lucratoare; 8h/zi, recuperare la un randament minimal de 18 TONE MINEREU procesat / ORA . Cifrele se refera la un zacamant brut cu continut sarac de 0,25 GRAME Au/TONA . Nu putem garanta rata de succes continuu pentru zone de exploatare sarace in metale pretioase, dar in urma unor statistici pe balastiere cantitatea minima este de 0.25g/t ; am intalnit si concentratii mai mari in zone bogat aurifere.

ATENTIE !!!

Utilajul nu poate obtine direct aur 24k, dar poate concentra mineralul procesat Concentratul obtinut, este vandabil datorita % ridicat de aur/tona de concentrat. Ratia statistica de concentrare este de 1:250-300, datorita acestei ratii rafinarea ulterioara a concentratului obtinut este mult mai usoara si prezinta interes pentru rafinatorii care cumpara acest tip de concentrat. Deasemenea cu cit avem mai mult aur per tona in concentratul obtinut cu atit pretul de vinzare creste. Un alt avantaj este ca nisipul trecut prin concentrator poate fi valorificat mai departe ; pierderea de material este de 1 tona la 250-300 tone prelucrate; deci productia initiala nu se diminueaza.

Nota bene: datorita costurilor de rafinare ulterioare si a pierderilor

viitoare, valoarea materialului concentrat obtinut se plateste la achizitie cu minus 35%-50% fata de pretul bursier al aurului din ziua achizitiei . In tabloul urmator acestea apar la rubrica de cheltuieli post rafinare material brut.

File updated July 2025

INVESTMENT

• Before buying, customers can test material from their own plant at our premises to determine its gold content in grams/tonne (see the SERVICES page), or send the raw material to a laboratory for analysis.

• The concentrator capacity MUST match the capacity of the sand/gravel production or processing plant. We recommend a feed of particles smaller than 4 mm and a maximum of 20–25 tonnes/h. The concentrator is installed at the end of the process flow, before the plant’s sand collector.

• One machine is operated by a single employee who, roughly every 4 hours, stops the plant and spends about 15 minutes cleaning the concentrator to avoid losses.

The Excel file lets you build scenarios for your own site: number of concentrators per plant, grams/tonne of material, 24K gold spot price on the calculation date, and working shifts (8–16 hours/day).

Allow for 1–2 months of winter downtime, so plan for ONLY 10 working months per year.

The investment is typically recovered in 2–3 months; working more than 8–10 hours a day speeds up the payback.

The FINANCIAL REPORT image shows a simulation of a normal working schedule (22 working days; 8 h/day; minimum throughput of 25 TONNES of material processed per HOUR). The figures assume a poor raw deposit with 0.25 GRAMS Au/TONNE. We cannot guarantee continuous results in areas poor in precious metals, but statistics from gravel pits show a minimum of 0.25 g/t, and we have also seen higher grades in gold-rich areas.

ATTENTION!

The machine does not produce 24K gold directly; it concentrates the processed material. The resulting concentrate is saleable thanks to its high gold content per tonne. The statistical concentration ratio is 1:250–300, which makes subsequent refining much easier and attractive to refiners who buy this type of concentrate. The more gold per tonne of concentrate, the higher the selling price. Another advantage is that the sand passing through the concentrator can still be sold: material loss is 1 tonne per 250–300 tonnes processed, so the initial production is not reduced.

Nota bene: because of subsequent refining costs and technological losses, the concentrate is bought at 35%–50% below the gold spot price on the day of purchase. In the table below, these appear under post-refining costs.