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General
Year
2021
Manufacturer
ROCK SYSTEMS
Model
108-2P
Serial Number
NA
Condition
New
Stock Number
108-2PS
Description
Rock Systems Portable 2 Bin Blending Hopper with Belt Scales, Model 108-2PS 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; adjustable discharge gate with hand crank to control material flow from each hopper.
b) Each belt feeder is 30” wide x 13’-6” long with Nord 7.5 h.p. gearmotor drive; 12” diameter rubber lagged head pulley mounted on Dodge 2-15/16” SCM pillow block bearings; 12” diameter self-cleaning tail pulley mounted on Dodge 2-3/16” SCM pillow block bearings; screw take-up assemblies; tail terminal guard and side nip guards; CEMA “C” flat belt idlers with 4” diameter rolls mounted on close centers; 3 ply Belt Wall belting with 3” tall corrugated side walls vulcanized endless.
c) Conveyor belt scale installed on each belt feeder complete with integrator and power supply mounted in a NEMA 4X waterproof enclosure displaying feed rate, total weight and belt speed; dual strain-gage load cell mounted in weighbridge; digital belt speed sensor; i/o board; includes calibration weights. Each belt scale is tied into the related belt feeder variable speed drive to control the flow rate.
d) Collecting conveyor is 36” wide with Nord 10 h.p. gearmotor drive; 14” diameter rubber lagged head pulley mounted on Dodge 2-7/16” SCM pillow block bearings; 12” diameter self-cleaning tail pulley mounted on Dodge 2-3/16” pillow block bearings; screw take-up assemblies; tail terminal guard; head pulley nip guards; CEMA “C” 35 degree troughing idlers with 5” diameter rolls; 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.
e) Portable trailer constructed of heavy duty wide flange beams which are braced for optimum rigidity; wide flange vertical beams and angle iron cross members tie all hoppers and trailer together; single axle chassis with dual 11 x 22.5 tires, air brakes, king pin, rear lighting, mud flaps and blocking pads. Includes one set of hand crank landing legs at the king pin.
f) One rust inhibitor prime coat and one finish coat gray paint for all equipment; one finish coat safety yellow paint for all guarding.
g) Electric motor control panel with main disconnect, AC Tech SMV variable speed drives for the belt feeders, branch circuit protection, fixed speed starter for the collecting conveyor, PLC with touch screen, all mounted on a support structure, bolted to the trailer frame and wired into the electric motors. All motors and electrical controls are 3 phase/460 volts/60 hertz.