RB Scott: Equipment, Wear Parts, Service

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GreyHawk/Metso HP400RD Portable Plant, Unit #984


On Lease

Nordberg HP400 Cone Crusher, The heart of the plant is the high performance HP Series cone crusher. Designed for portable installations, this cone crusher is the most compact, economical to operate and productive machine in its class. The HP Series offers substantially higher production capacity over traditional cone crushers. It also provides excellent product shape, making it suitable for both secondary and tertiary crushing.


Equipped with manganese steel crushing members, bronze bearings and replaceable main frame seat liners. Features include hydraulic bowl clamping and adjustment, automatic tramp iron release and hydraulic clearing of the crusher chamber. Remote control station mounted to side of plant allows convenient operation for adjusting the closed side setting, or for clearing the crusher.


Additional HP cone features include a package lubrication system consisting of an internal independent pump, oil pressure switch, temperature switch, oil tank with strainer, oil level gauge, thermometers at three locations, (2) oil heater with control panel, oil filter and oil cooler (air-radiator type), and crusher tools.

GreyHawk Heavy Duty Chassis

  • Main Chassis
  • 24" Mainbeam
  • Quad-axle Hutch Spring Suspension with 49-1/2” axle spacing
  • Qty 12 11R22.5 tires on Budd type wheels
  • Air controlled brakes on all four axles
  • LED side marker and tail lights
  • Large machinery platform with handrails and toe kicks
  • Observation platform with handrails and toe kicks


  • Rear Discharge Conveyor (48”)
  • Channel frame design
  • Superior 5” CEMA C channel mount idlers
  • Superior 5” CEMA C return idlers
  • Superior Exterra belt scraper
  • 3 ply, 3/16” top cover conveyor belting
  • Skirt rubber in drop zone
  • Hinged door to provide easy access to the crusher rock box
  • Head Pulley
    • Superior 14”x 51” drum pulley
    • XT35 hubs
    • 3-7/16” pillow block bearings
    • Hub City 515 shaft mount reducer
    • WEG 20HP motor
  • Tail Pulley
    • Superior 12”x 51” chevron wing pulley
    • XT30 hubs
    • 2-15/16” bearings
    • Tube and tube take-ups


  • 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 have Acme threaded rod adjustment and swing up for transport.


  • Crusher Feed Basket
    • Sits on top of the crusher
    • ¼” mild steel hopper with 3/8” base plate
    • May need to be removed for transport


  • Overflow Chute
    • Trough made from ¼” mild steel
    • Discharges on to the discharge conveyor
    • May need to be removed for transport



  • 5’x 5’x12” 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
  • 400HP crusher motor
  • Crusher is controlled by a Allen Bradley soft start
  • Door mounted amp meter for crusher amperage
  • Hour meter located inside the enclosure
  • PLC HMI touch screen display for automated crusher control



  • 13HP Honda gasoline engine with electric start and backup recoil start
  • (6) Hydraulic jacklegs with lock-out valves
  • 6” diameter
  • 18” stroke cylinders
  • The hydraulic jack assemblies are designed for service as a “Run-on” jack, however, we highly recommend the use of cribbing to properly support the portable chassis
  • Six bank valve body for independent control of each jackleg
  • Single bank valve for crusher motor adjustment


Safety Guards:

We install all standard guarding, customer will be responsible for compliance with local codes.


  • Chassis to be sandblasted, one coat two 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.