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GreyHawk/Metso C3054 Portable Jaw Plant

The Nordberg C3054 is an efficient primary jaw crusher for quarries, gravel pits, mines and recycling.

Mounting of the crusher is made 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 the 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 easy to adjust utilizing the push button hydraulic adjust, 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 changes are included with the jaw crusher.

Nordberg C3054 Jaw Crusher

  • Hydraulic setting adjustment – Hydraulic Power Unit 480/115V/60Hz
  • Jaw Profile – Quarry, protection plate – front frame & pitman
  • Support Brackets – Installation angle –6 degrees
  • Drive on left side (viewed from the fixed jaw end)
  • Flywheels – 9 x 8 V grooves
  • Motor
  • Drive Equipment – Integral motor support
  • Guards
  • Feed Box
  • Conveyor Belt Protection

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
  • 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
  • V–belt guard
  • (8) Cast manganese grizzly bars
  • OST (Rosta Style) motor base

GreyHawk 60” x 32’ Undercrusher Conveyor

8” channel bridged truss design equipped with Superior 5" CEMA 'C' channel mount idlers, channel mount impact idlers under impact zone, Superior 14” x 63” vulcanized head pulley, XT35 Hubs,  3–7/16” Pillow block bearings, Powertorque 615 shaft mount reducer, 30 HP, 1800 RPM, TEFC drive motor,  sheaves, V–Belts and motor V–Belt guard, Superior 12” x 63” CEMA Chevron tail pulley,  XT 30 Hubs,  2–15/16” shaft with Dodge SCM wide slot takeup, Superior 5” CEMA ‘C’ return idlers, return roll guards, return belt plow, Superior live shaft belt alignment rubber disc rollers, skirt plates with skirtboard rubber, 3 ply 3/16” x 1/16” conveyor belting, and Superior Exterra belt scraper system.  Hinged tail assembly with hydraulic raise and lower for maintenance access.

GreyHawk Heavy Duty Chassis

24” 94# Mainbeam with Quad–Axle Hutch Suspension 49.5 inch centers, equipped for semi trailer towing with 11:00 R 22.5 tires on Budd type wheels, air controlled brakes, fifth wheel kingpin, conveyor supports, travel lights, reflectors, mud flaps, and heavy duty removable bumper/light bar.  Machinery platform with hand rails above the jaw crusher, and a large machinery platform at the back of the crusher.  Heavy Duty 3/4” thick A–36 steel hopper with ½” AR400 plug weld steel liners on the lower two–thirds of the hopper.  Heavy duty skid assembly for removal of the complete hopper assembly, by–pass chute with hydraulic slide arrangement for providing service access to the back of the jaw crusher.

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.

Electric Starters, Wiring and Controls – 5' x 5' x 12" electrical enclosure with structural support to set on grade during plant operation. The enclosure is connected to the plant with 15' electrical cable. The enclosure has a main inlet line surge arrestor, warning horn, lifting eyes and main circuit breaker with door interlocked disconnect linkage. All on–plant equipment is controlled by NEMA rated starters. Crusher motor is controlled by a digital solid state reduce voltage starter (soft–start).  The panel includes an hour meter located inside the enclosure and a door mounted amp meter for crusher amperage.  The feeder motor is controlled by a variable frequency drive.

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.

Power hydraulic raise and lower – Six tube in tube style heavy duty run–on jacklegs, with 6" diameter x 18" stroke cylinders to lift the plant into the operating position. Each cylinder is independently controlled from a hydraulic valve for precise control and ease of leveling. The hydraulic system is powered by an 11 HP Honda gasoline engine with electric start and backup recoil start.  Includes two (2) additional valves for sliding the by–pass hopper away from the jaw crusher, and for hydraulic lowering the under crusher conveyor.