RB Scott: Equipment, Wear Parts, Service

Connect With Us Facebook

Your process equipment and wear parts specialists

GreyHawk/Metso C-120 Portable Plant, Unit #737

SN: #1058/37465/SM2112

Nordberg C120 Jaw Crusher The Nordberg C120 is an aggressive primary jaw crusher for quarries, gravel pits, mines and recycling. 

The deep cavity and nip angle provide excellent draw and throughput. Mounting of the crusher is make without a bolted connection to the foundation. 

The main frame of the crusher is made of rolled steel side plates and two steel castings, connected through precision machined bosses and held together by large diameter bolts.  The pitman and front and rear frame castings are made from high-quality steel with excellent fatigue strength.  There are no welded joints in the frame. 

  • The frame can be completely disassembled for transportation if necessary.  The eccentric shaft bearings are long-life grease lubricated spherical roller bearings and are all of the same size.
  • The discharge setting is easily adjusted remotely with hydraulics, by means of moving wedges. 
  • The toggle plate operates on a rocking principle without any lubrication and serves as an overload fuse.
  • The crusher’s jaw dies are of high-manganese steel castings, and the cheek plates of high abrasive-resistant steel plate. 
  • The jaw dies can be reversed for maximum utilization. 
  • Tools for jaw die are included with the jaw crusher.  
  • Setting Adjustment
  • Hydraulic Wedge

Adjustment – Hydraulic setting adjustment has all the advantages and functions of mechanical setting adjustment plus it is faster and easier to use.  All setting adjustments are done remote controlled by means of activating hydraulic cylinders.  Hydraulic Power Unit – Electrification 460V/60Hz The hydraulic setting adjustment is powered by a hydraulic power unit.  A return cylinder keeps the pitman pulled backwards.   Hydraulic unit Adjustment wedges with supports and cylinders Return cylinder Electric motor Control 115V 60Hz Hoses from the unit to cylinders Heat Resistor – Resistor for oil heating in the hydraulic tank Jaw Dies & Protection Jaw Profile: Quarry Protection Plate – Front Frame & Pitman Drillings for Main bearing temperature sensors Support Brackets Vibration absorbing mounting pads Drive Equipment Integral Motor Support WEG 200HP 1200RPM TEFC Motor sheave and v-belts Drive on Left Side (viewed from the fixed jaw end) Flywheels 10 x 8 V grooves Safe and user friendly composite guards Metso 52” x 20’ Vibrating Grizzly Feeder 14’ Pan with replaceable ¾” AR steel liners One 6’ grizzly section, with adjustable bars ½” Quick Change AR side plate liners Adjustable side plate liners allow the customer to adjust the gap between the side plate and the hopper. VL-11 Vibrator, oil lubricated with (2) eccentric shafts and (2) wide faced helical gears (4-110mm, 23 series bearings) Mounted on steel coil springs at 0 degrees V-belt drive includes feeder sheave, motor sheave, and belts WEG 40HP 1800RPM TEFC Fabricated steel grizzly bars Rosta Style motor base GreyHawk Heavy Duty Chassis Main Chassis 24” 94# mainbeam Quad-axle Hutch Spring Suspension with 49-1/2” axle spacing Qty 16 11R22.5 tires on Budd type wheels Air controlled brakes on all four axles LED side marker and tail lights Back of chassis is reinforced to allow for customer stinger attachment brackets  Heavy Duty Feed Hopper Hopper walls made from 3/4” A36 steel plate and are reinforced Lined with two rows of ½” AR400 plug welded to the hopper walls Two piece design  GreyHawk 60” Under-crusher Folding Conveyor with Wrap-Drive 8” channel bridged truss design Superior 5” CEMA C channel mount idlers Superior 5” CEMA C channel mount impact idlers in high impact areas Superior 5” CEMA C rubber cushion return idlers Superior Exterra belt scraper Superior Powerfold Two foot impact bed at crusher discharge with Argonics impact bars 12” tube in tube take-ups 3 ply, ¼ top cover conveyor belting Hinged tail section with hydraulic raise and lower for maintenance access Head Pulley Superior 16”x63” drum pulley XT50 hubs 3-7/16” pillow block bearings Drive Pulley Superior 16”x63” vulcanized drum pulley XT50 hubs 3-7/16” pillow block bearings Falk 5215 shaftmount gearbox Weg 30hp motor Snub Pulley Superior 14”x63” chevron wing pulley XT40 hubs 2-15/16” pillow block bearings Tail Pulley Superior 14”x63” chevron wing pulley XT40 hubs 2-15/16” pillow block bearings  Rockbox Made from ¾” A36 steel plate Two rows of reinforcing 6” structural channel Bolt in ½” AR400 wear plates allow for longer life and easy replacement  Bypass Chutes Upper chute is made from ¼” plate, bolts to two tube and tube arms and slides in out hydraulically for crusher maintenance Middle chute is made from ¼” plate and bolts to the upper chute.  This chute can be removed if a cross conveyor is needed Lower chute is made from ¼” plate and is bolted in to the main chassis All chutes are lined with 1” thick bolted in black polyurethane  Adjustable king pin support Adjustable tubular supports reduce the amount of blocking required in the kingpin area during plant operation, which simplifies set up and tear down. The kingpin supports are lifted and pinned for towing to clear the semi-tractor. Electrical: NEMA 4 deep electrical enclosure Enclosure is bolted to a steel support frame for setting on grade during operation Lifting eyes Connected to plant with 15’ of cable to allow the customer to position the enclosure Door interlocked disconnect linkage Warning horn Square D circuit breakers Square D NEMA rated starters Crusher is controlled by a soft start Feeder is control by a variable frequency drive Door mounted amp meter for crusher amperage Hour meter located inside the enclosure Hydraulics: 11HP Honda gasoline engine with electric start and backup recoil start (6) run-on jacklegs with 6” diameter 18” stroke cylinders Six bank valve body for independent control of each jackleg Single bank valve body for independent control of bypass chute adjustment Single bank valve body for raising and lowering the conveyor tail section All hydraulic lines are bleed and tested for leaks Safety Guards: We install all standard guarding, customer will be responsible for compliance with local codes.  General: Chassis to be sandblasted, one coat tow part epoxy primer and two part urethane finish painted one coat GreyHawk beige with orange and grey highlight stripe on the trailer frame beams. (2) sets of owners/parts manuals.