type privately held company industry basic resources engineering founded 1987 headquarters langley canada key people steve mcalister director mark van kleek president and ceo products mineral processing machinery and process engineering subsidiaries icon gold recovery corp. met solve laboratories inc. met solve analytical services website www.seprosystems.com sepro mineral systems corp. is a multinational corporation founded in 1987 and headquartered in british columbia canada . the outcome of the acquisition of sepro mineral processing international by falcon concentrators in 2008 1 the companies key focus is the production of mineral processing equipment for the mining and aggregate industries . 2 sepro mineral systems corp. also provides engineering and process design services while continuing to advance its machine technology through research and development . proprietary technology produced by sepro includes grinding mills ore scrubbers vibrating screens centrifugal gravity concentrators agglomeration drums and dense media separators . the company is also a supplier of single source modular pre designed and custom designed plants and circuits which are made of sepro s proprietary equipment as well as third party products . 3 in 2012 sepro opened a satellite office in ghana under the name sepro mineral systems ltd to better serve the african market . 4 today sepro mineral systems corp. is represented by global agents in over 15 countries and has equipment operating in over 31 countries around the world . 5 contents 1 products 1.1 falcon gravity concentrators 1.1.1 falcon semi batch 1.1.2 falcon continuous 1.1.3 falcon ultra fine 1.2 sepro tyre drive scrubbers 1.3 sepro tyre drive agglomeration drums 1.4 sepro tyre drive grinding mills 1.5 condor dense medium separators 1.6 sepro leach reactors 1.7 sepro pumps 1.8 sepro blackhawk 100 cone crushers 1.9 sepro sizetec screens 2 plants and process design 3 references 4 external links products edit falcon gravity concentrators edit the falcon concentrator is a type of gravity separation device for the recovery of valuable metals and minerals . there are three types of falcon concentrators falcon semi batch sb falcon continuous c and falcon ultra fine uf . 6 7 all models of falcon concentrator rely on the creation of centrifugal forces by way of a rapidly rotating vertical bowl in order to stratify and separate particles based on weight . the amount of gravitational force generated and the method of collecting these heavier particles differs for each model . falcon semi batch edit the falcon semi batch sb centrifugal concentrator is primarily used for the recovery of free liberated precious metals such as gold silver and platinum . the machine generates forces up to 200 times the force of gravity 200 g s and makes use of a two stage rotating bowl for mineral separation . the smooth walled lower portion is for particle stratification and then a fluidized upper portion is used for the collection of the heavier particles . the machine is stopped periodically to rinse and collect the valuable concentrate from the bowl . 8 the falcon sb concentrator is used for gold recovery at many mines around the word including quadra mining s robinson mine in the united states newcrest mining s telfer gold mine in australia and the sadiola gold mine owned principally by anglogold ashanti and iamgold in mali . 9 falcon continuous edit the falcon continuous c centrifugal concentrator is primarily used for the separation of heavy minerals which occur in ore concentrations above 0.1 % by weight such as cassiterite tantalum and scheelite . 10 11 it is also used for coal cleaning 12 and pre concentration of gold bearing ores . 13 14 the machine generates forces up to 300 times the force of gravity 300 g s and operates by using a smooth walled rotating bowl to stratify the material into heavier and lighter fractions then uses pneumatic valves to control the amount of heavy material that reports to the concentrate collection stream . it does not use any fluidization water and relies entirely on centrifugal force for separation . 15 the falcon c concentrator is used in various process plants around the world such as the tanco mine in canada 16 the sekisovskoye mine in kazakhstan 17 and the renison tin mine in tasmania . 18 falcon ultra fine edit the falcon ultra fine uf centrifugal concentrator is primarily used for the separation of heavy minerals which occur in ore concentrations above 0.1 % by weight such as cassiterite tantalum and scheelite when the majority of the particles are smaller than 75 m. the machine generates forces up to 600 times the force of gravity 600 g s and uses a smooth walled bowl for particle stratification with a pneumatically controlled rubber lip for heavy material collection . the machine is stopped periodically to rinse and collect the valuable concentrate from the bowl . 19 studies have found that the deposition of heavy material within the bowl can be predicted by a hindered settling model . 20 the falcon uf concentrator is used in a number of process plants around the world such as the tanco mine in canada 21 and the bluestone tin mine in tasmania . 22 sepro tyre drive scrubbers edit scrubbers are material washers used to break down and disperse clays in order to prepare mineral ores or construction aggregates for further processing . sepro tyre drive scrubbers are manufactured up to 3.6 m in diameter 23 and are capable of processing up to 1500 tonnes per hour of material . shell supported scrubbers such as the sepro ptd scrubber minimize stress on the shell by spreading the power drive over the full length of the washing drum . these scrubbers operate in many applications on feeds with high clay content and are commonly used for difficult ore and stone washing duties . a few specified applications of sepro scrubbers include removal of gold robbing carboniferous material and other contaminants from gold ores the processing of bauxite ores for aluminum production the washing of laterites gold nickel cobalt to liberate fine metals for gravity recovery and the washing of crushed aggregate gravel and sand to remove clay contamination . 24 25 sepro tyre drive agglomeration drums edit sepro agglomeration drums are specifically designed to prepare feeds with high fines content on gold and base metal heap loading operations . 26 processes where a sepro agglomeration drum can be utilized include gold copper uranium and nickel laterite . the action in the agglomeration drum combined with small additions of cement or lime binds the fines into a pelletised product which can be heaped and leached out without pooling and channelling caused by loss of heap permeability due to blinding by fines . 27 the machine uses flexible rubber liners to prevent build up without the use of lifter bars and is adjustable on a pivotable base frame . 28 shell supported agglomerators such as the sepro ptd agglomeration drum minimize stress on the shell by spreading the power drive over the full length of the unit . sepro tyre drive grinding mills edit sepro tyre driven grinding mills are designed for small and medium capacity grinding applications specifically small tonnage plants regrinding mills reagent prep and lime slaking . sepro pneumatic tyre driven ptd mills provide an alternative to standard trunnion drive systems . the drive consists of multiple gears boxes and electric motors directly connected and controlled through an ac variable frequency drive . shell supported mills such as the sepro ptd mills minimize stress on the mill shell by spreading the power drive over the full length of the mill . sepro mills are suitable for ball rod and pebble charges and are available with overflow or grate discharge 29 to suit the application . shell supported mills such as the sepro ptd grinding mills minimize stress on the shell by spreading the power drive over the full length of the unit . 30 condor dense medium separators edit the condor dense medium separator dms is a multi stage high efficiency media separation machine for mineral processing operations at the rougher and scavenger stage . it is typically used in a pre concentration duty prior to processing or milling to reject barren material . the unit is manufactured with either two or three stages of separation depending on the media with one or two valuable densities resulting while the unit can produce up to four products from one dense medium vessel altogether . the condor dms can take a larger feed particle size compared to a dms cyclone of the same diameter and capacity and is capable of handling higher sinks or floats loading without affecting performance . the valuable dense material or sinks can be combined or separated at the final stage and is then pumped onto the next process in the circuit . sepro mineral systems corp. supplies customizable dms plants for a wide variety of application requirements . sepro s standard two product concentrate tailings dms plant utilizes a two stage condor separator and single density medium circuit while the three product concentrate middlings tailings dms plant utilizes a three stage condor separator and two medium circuits at high and low density . 31 sepro leach reactors edit the sepro leach reactor is a high concentration leach reactor developed to treat the gold concentrate produced by the falcon concentrator . the unit consists of a concentrate holding tank and a leach tank and impeller which are linked by a sepro vertical bowl pump . the slr uses either peroxide or oxygen gas to achieve elevated levels of dissolved oxygen required to accelerate the leaching process with no reagents required . the pregnant leach solution produced can be directly electrowon . with the addition of an electrowinning unit the final product becomes a gold plated carbon that can be directly refined to produce gold bullion . extensive test work of the slr on site has shown over 99 % of the target mineral is recovered through a simple fully automated process that is easily incorporated into recovery operations . sepro mineral systems corp. supplies slr units with capacities ranging from 1000 50 000 kg . 32 sepro pumps edit sepro supplies horizontal slurry pumps vertical sump pumps vertical froth pumps vertical tank pumps and horizontal fluid process pump models which are metal lined or rubber lined one option being sh46 material for advanced wear resistance . 33 they are designed to operate in the mining aggregate chemical and industrial sectors . applications suitable for sepro pumps include mill discharge mineral concentrate dense media coarse fine tailings process water and aggregates . sepro engineers mobile modular and fixed mineral processing plant designs which incorporate the complete line of slurry sump froth tank and fluid sepro pumps . 34 sepro blackhawk 100 cone crushers edit the sepro blackhawk 100 cone crusher is a modern hydraulically operated cone crusher designed to be simple rugged and effective for heavy duty mining and aggregate applications . the combination of the speed and eccentric throw of the crusher provides fine crushing capability and high capacity in a very compact design . the blackhawk is capable of being applied as a secondary or tertiary crusher as well as a pebble crusher.the blackhawk 100 is driven directly via a flexible coupling to the electric drive motor . this arrangement eliminates the need for sheaves and v belts allowing for simplified operation and maintenance . a variable speed drive package is included to optimize the speed of the machine to the given liner profile feed and production conditions . 35 sepro sizetec screens edit sepro sizetec screens are used for a variety of particle size separation and dewatering duties in mineral processing and aggregate applications . in mineral processing applications particle size separation is of utmost importance in order to optimize crushing grinding and gravity separation as well as many other processes . in aggregate applications proper size separation and dewatering is essential to generate a saleable product . high capacity capable and featuring interchangeable screen decks