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100 TPH Placer Gold Mining Equipment

canada manufacturer

The IGR 10K Placer Gold Mining Plant is an ‘A-La-Carte = Fully Customized’ Alluvial Mining Equipment. This means that the user can order components from a list of existing part numbers without paying for engineering designs. The user can select options at the time of purchase or add components in the field without obsoleting the components they may already have. A 100 TPH (2400 Tons per day) gold recovery system.

Features include:placer gold mining equipment

  • Hopper/Monitor/Grizzly
  • Scrubber
  • Vibrating Screen
  • Dewatering Cyclone
  • iCON Concentrator Battery – ideally suited for remote regions
  • Falcon Concentrator
  • Oversize Conveyor
  • DMS or Jigs for Diamonds
  • Magnetic Separator
  • Finishing Table

An alluvial process plant controls the amount of water entering the system: the solids vary in tons per hour and gravel size distribution.

See our replacement 100 TPH Gold Mining Wash Plant



placer gold mining equipment for alluvial deposits
A modern and sophisticated 100 TPH (2400 Tons per day) placer gold recovery equipment system

As alluvial and eluvial deposits vary greatly in feed size distribution and clay content, an alluvial/eluvial plant needs the capacity to process an extreme range of conditions. It is common in the equatorial regions of the world to feed a plant with a dredge and/or an excavator. This plant can handle the range of material and various feed options.

The IGR 10K A-La-Carte Placer Gold Mining plant will have the versatility to process a broad spectrum of conditions from clean gravel to laterite and saprolite clays. Alluvial Channel/Gravel conditions may involve 20% to 90% of the solids feed passing 2mm- and continuing to the concentrators. Clays may have 90% passing 2mm- and continuing to the concentrators. This plant will work in conditions of both gravel and clay. Plant throughput and efficiency will vary with the condition of the material.

The A-La-Carte structure of the plant will allow the client to purchase only the components they need. The modular design will allow the purchaser or operator to add or remove components without obsoleting that which they already have and without requiring engineering design.

An operator may choose to start with or without the scrubber. This decision will be made based on knowledge of the clay content and capital investment. As the user gains experience they may choose to add the scrubber or remove it from their system; this is ‘A-La-Carte’ – the client can add or subtract components at will without re-design. Additionally, the user may desire to add options such as DMS or Jigs for diamonds and/or cyclones for dewatering/de-sliming.

The plant can be fed by excavator/loader or land dredge. Our plant including the scrubber is ideal to be fed by a loader/excavator. When feeding by a land dredge the user may opt to leave the scrubber out of the system. The land dredge will do a decent job of dispersing the clay – though not perfect. The land dredge also delivers slurry at maybe 15% solids by weight. This is considered very thin slurry for efficient scrubbing. Operators in some regions insist on scrubbing the dredge discharge. Field testing will provide the best information on your material.

Sepro/IGR always recommend sample testing. Met-Solv Labs offers a specific lab test for laterite and saprolite clays – We will write a performance guarantee for our equipment based on lab testing. This analysis will determine the ideal plant for your regional material.

How to Feed the Placer Gold Process Plant Grizzly

This plant can be fed by dredge pump or Loader/Excavator

An operator will feed material onto the grizzly. A water monitor fluidizes/mobilizes the material allowing it to pass through the grizzly where it continues to either a scrubber or vibrating screen. It is the fluidizing action of the monitor that controls the feed rate of solids into the system. Clean gravels will mobilize easily with the monitor and provide the maximum flow rate of solids. Clay will require more water to mobilize the material allowing it to pass through the grizzly. A wider grizzly allows larger clay balls to pass. This keeps the solids to water ratio high which leads to maximum efficiency in the scrubber and maximum solids throughput of the plant.

How to Operate the Wash Plant’ Scrubber

This wash plant’ scrubber works best at 50% solids. A scrubber uses large rock as the ‘grinding’ media. A scrubber will lift the solids to 1 o’clock and drop the solids back to 7 o’clock causing an energy intensive lifting and dropping action. It is the attrition of the rock on rock action that acts to disperse the clay. Clay processing is based on energy input and ‘retention time’ inside of the scrubber. To scrub better, the operator can increase the retention time or literally add large rocks to the scrubber.

Sepro-Sizetec Screen

After the scrubber the material passes to a double deck vibrating screen. Typically the upper deck cuts at 12mm and the lower deck cuts at 2mm. These can be specified by the customer. The 2mm- passes to a slurry transfer pump and on to the concentrators. The 2 to 12 mm middling is recombined with 12mm oversize and pass to the oversize stacking conveyor.

Oversized Rock Conveyor

1 standard conveyor is provided with each plant. The discharge of the conveyor can be considered tails or can be further treated: generally using a DMS or Jig for diamonds.

Gold Gravity Concentrator Battery

Each 7x i350 Battery is designed for a nominal 60 tph of solids at -2mm. 180 m3 of total slurry is distributed to 6 active concentrators. There is always 1 concentrator rinsing.

A max of 90 tph of solids can be fed to each battery without harm to the system. A minimum of 6 tph of solids is recommended to each battery. The intent is to always use 6 concentrators regardless of the feed rate. The slurry water capacity of 700 gpm +/-10% is intended to remain constant regardless of the solids feed rated. No control system is required for the slurry water.

A Carousel Distributor is used to distribute the slurry from the head tank to the 6 active concentrators. The distributor also blocks the flow to the 7th concentrator allowing the operator to rinse the rich concentrate. An operator will manually rotate the distributor and operate the valves on each concentrator.

Tails are piped to a common tails launder and with an 8” flanged outlet. The launder is designed for gravity discharge. (Pumping the tails requires modification to the depth of the launder to avoid cavitation.)

The rich concentrate flows by gravity to a single iPump used to transport this slurry to your cleanup facility.

All equipment is mounted on a single skid designed to fit in a 20’ container. The skid includes a roof structure with corrugate roofing. The container will arrive with the majority of the assembly already complete. Some site assembly will be required. This includes erection of the portions too tall to fit in the container and installation of the roof panels.

Process Equipment Options

The screen fractions can be processed separately if the customer desires. This would require an additional conveyor. Also, one may choose alternate screen apertures: a top deck at 30mm where the 2mm to 30mm fraction is passed to a DMS or jig for diamonds is an option. In this case only the 30mm+ would pass to the tails conveyor.

The customer may choose a dewatering cyclone. This would remove excess water and clay/ slimes just before the concentrators.

Why is the IGR 10K the Best Equipment for Placer Gold Mining

  • Can be fed by dredge pump or Loader/Excavator
  • The plant is based on the world famous iCON i350 Concentrator and Sepro’s industry leading Tyre Driven Scrubbers.
  • The plant is designed to be easily shippable and fits into standard 20’ shipping containers which fit on the Bedford trucks of Guyana.
  • No Break-Bulk shipping is required. Over-Size or Break-Bulk is not possible into the remote regions like Guyana.
  • The plant is designed for the bush for minimum maintenance with no computerized controls. It is intended to be serviced with hand tools available on site. Remote plants are generally operated by uneducated persons meaning that the functions must be simple and forgiving.
  • The manual Carousel Slurry Distributor is extremely simple and requires no pinch valves or compressed air.
  • The multi iCON array eliminates the need to ‘by-pass’ to a complex sump/slurry pump system.
  • This is generally a gravity flow process with no need for excess slurry pumps and associated controls. (Only the 2mm- slurry will get pumped)
  • Plumbing is provided to distribute feed slurry and process water to all plant equipment.
  • Piping on the plant for the clean process water is provided including a distribution manifold and connection to each iCON.
  • Electrical controls: All electrical distribution and controls are included. This system distributes electricity from a single source to the Scrubber, Concentrators, iPump, Process water pump, Screen and Conveyor. VFDs (Variable Frequency Drives) are included for all iCON equipment. Socket/Plugs are provided at the panels as a means to disconnect each item.

The iCON Battery Plant

The iCON Battery Plant was designed by real miners working in remote regions of the world. It utilizes the i350 concentrator which has become the World Wide placer mining standard for fine gold.

placer gold mining equipment-gravity-concentrator-battery-plant

Gold concentrators are ‘batch’ machines. This means you must occasionally divert the feed to rinse the rich concentrate. In a system with only 1 concentrator, you either ‘by-pass’ to tails or to a tank/slurry pump that recirculates the slurry back to a head tank. A system having 2 concentrators would allow to you to always feed 1 out of the 2. This is inefficient. A system feeding 2 concentrators while rinsing a third, becomes financially viable when using the economical i350. A battery feeding 6 while rinsing the 7th is very efficient and cost effective. The iCON Rotary Distributor allows easy distribution of the slurry and sequential rinsing without complicated industrial valves and/or controls. The distributor is hand operated.

alluvial gold mining equipment igr 10k plant


  • Option to feed slurry or to the distributor or feed dry sand to a mixing flume
  • Optional dewatering/desliming cyclone
  • Manually operated Rotating Distributor
  • 6 active concentrators while a 7th unit is rinsing
  • iPump to deliver the concentrates to a location of your choice
  • Tails chute allowing gravity discharge of the tails
  • Head tank allowing for even distribution of the slurry
  • Optional booster pump to deliver process water to the concentrators
placer gold mining equipment for sale
The Handwheel is rotated periodically to sequentially isolate 1 concentrator while the other 6 are actively fed. This operation is intuitive and easy for an operator anywhere in the world.



  • Lowest installed cost per ton of any concentrator: bowls or spirals
  • Simple Design
    No computerized controls
    No pinch valves
    No compressed air
  • High Reliability
    Minimal moving parts to wear
    Serviceable with hand tools in the field
  • Ease of Operation
    Intuitive/visual operation
    Minimal training required


Intended for a 100 tph Alluvial Plant.

  • The efficient capacity is 60 tph of 2mm-
  • The max capacity is 90 tph allowing for surges and variation in the feed
  • Each i350 is capable of 30 m3 of slurry or 180 m3 for the 6×7 battery

The IGR 10k Equipment List


Not Included as Standard Placer Gold Mining Equipment

  • Electrical Generator
  • Process water booster pump

Optional Equipment for this Alluvial Gold Mining Plant

  • Dewatering/desliming cyclones
  • Slurry transfer pump
  • Process water pump
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