Batch and continuous flotation tests are the quickest, safest, and most economical method of determining flotation and other ore dressing problems. Best use an ore testing facilities under the direction of experienced metallurgical engineers. Tests eliminate errors and are moderate in cost. Laboratory equipment is available for complete tests covering grinding, flotation, gravity concentration, amalgamation, leaching, and cyanidation.

A plant for the continuous testing of ores for flotation or gravity is available at low cost. Based upon these tests, the following information is compiled and submitted.

Metallurgical Report: This analysis gives the necessary data for milling the ores, and includes the following points:

1. Commercial recovery possible on various products in ore.
2. Proper flowsheet to get maximum recovery including tests using table concentration, amalgamation, and flotation with proper relationship to each other.
3. The mesh sizes of grinding.
4. Dilution of the pulp.
5. Time required for each process.
6. Chemical and reagent consumption.
7. Products or concentrates made, both as to grade and recovery. Technical details are given, but the entire test report is explained in simple language so that the man unfamiliar with general mining terms will understand.

Diagrammatic Flowsheet: From the test results, the most satisfactory flowsheet can then be determined. The flowsheet is made showing the machines in their proper place in the flowsheet, giving the direction of flow, machines recommended, products, and general details. The determination of the flowsheet enables you to obtain the proper equipment for your problem. Our sales engineers will assist you in the choice of equipment and in the engineering considerations for a properly designed and balanced mill.

Specifications of Units: Based upon the test report and the flowsheet our sales engineers, in conference with your staff or our technicians and engineers, will furnish specifications of equipment for the particular tonnage plant desired. For your mill specifications the following details are given: sizes of machines, tonnages per unit, weights, horsepower’s, and prices of machines. Preliminary plans showing typical mills can be furnished, though we recommend a competent engineer not only to examine your deposit and to secure the proper average sample for testing, but also to design and layout the plant. In small tonnage mills (less than 65 tons) it may be advisable to consider a portable Mill with its flexible flowsheet, low first cost, and low installation expenses.