Rock Systems Stationary 6 Bin Blending Hopper, Model 108-6S complete as follows:

a. Each hopper is 9’-6” wide x 14’ long with 20 tons storage capacity constructed from 1/4” thick steel plate with rectangle tube reinforcing at the hopper top and angle iron reinforcing at the hopper mid-section and bottom section; self-relieving tapered hopper bottom opening to minimize bridging; full length skirtboards with Rema Skirt 50 adjustable rubber flashing to prevent leakage between hopper bottom and belt feeder; adjustable discharge gate with hand crank to control material flow from each hopper.

b. Each belt feeder is 30” wide x 8’ long with fixed speed 5 h.p. electric motor, Dodge TXT425 shaft mount speed reducer, v-belt drive and OSHA drive guard; Dodge 12” diameter rubber lagged head pulley mounted on Dodge 2-7/16” SCM pillow block bearings; Dodge 12” diameter self-cleaning tail pulley mounted on Dodge 1-15/16” SCM pillow block bearings; screw take-up assemblies; OSHA tail terminal guard and side nip guards; ICC CEMA “C” flat belt idlers with 5” diameter rolls mounted on close centers; 3 ply vulcanized endless conveyor belting. Belt speed setup for 90 fpm.

c. Collecting conveyor is 36” wide with fixed speed 15 h.p. electric motor, Dodge TXT415 shaft mount speed reducer, v-belt drive and OSHA drive guard; Dodge 12” diameter rubber lagged head pulley mounted on Dodge 2-7/16” SCM pillow block bearings; Dodge 12” diameter self-cleaning tail pulley mounted on Dodge 2-3/16” SCM pillow block bearings; screw take-up assemblies; OSHA tail terminal guard; head pulley nip guards; ICC CEMA “C” 35 degree troughing idlers with 5” diameter rolls; ICC CEMA “C” return idlers with 5” diameter rolls; 2 ply conveyor belting with 3/16” x 1/16” rubber covers; Flexco 140 mechanical belt splice; 9’-6” long conveyor extension beyond the hoppers.

d. Support legs constructed of wide flange beams with base plates.

e. Bolted connection between two hoppers and the collecting conveyor to accommodate truck freight and the addition of future bins.

f. One rust inhibitor prime coat and one finish coat gray paint for all equipment; one finish coat safety yellow paint for all guarding.

Optional Equipment

Custom electric motor control panel with main disconnect, variable speed drives for each belt feeder, fixed speed starter for collecting conveyor, circuit breaker branch circuit protection, control power transformer, start/stop push buttons for each motor, speed potentiometers for all belt feeders, emergency stop button, selector switch for each belt feeder to run only the desired belt feeders for special blends, all mounted in a NEMA 4 enclosure; includes wiring from each electric motor to the control panel; skid mounted support structure.