Supplier shall provide upright Low-Shear High Volume Mixer used for mixing concrete in a laboratory setting. The Mixer shall be fabricated from durable materials and be capable for use in research, testing and production. The mixer shall employ counter-current mixing action. It is desired that the pan be removable. No Required: 1 Capacity: Minimum of 1.75 cubic feet. Maximum capacity not applicable. Width: 32 Inch Minimum, 40 inch Maximum Depth: 59 Inch Minimum, 70 inch Maximum Height: 71 Inch Minimum, 80 inch Maximum Weight: 1800 Pounds Minimum, 3500 Pounds Maximum Motor Power: 3 Horsepower Minimum, 4 Horsepower Maximum Motor Voltage: 3/60/230-460 Volts (i.e., 3 Phase system with a Phase Angle of 60 for which the motor can operate at a Minimum Voltage of 230 to a Maximum Voltage of 460)