TRACKED SCREEN FEATURES

Primary Tipping Grid - The primary grid is constructed from mild steel plate with 20mm thick Hardox 400 liners bolted in on the side wings for protection when loading. The grid is removed for transport. The grid is loaded from the rear using a FEL. The grid has bolted primary Hardox 400 grizzly bars fitted that can be set at the client specified spacing. The grid is tipped remotely from the remote control and discharges all oversize retained on the grid back into the FEL bucket.

Primary Hopper - The primary hopper is constructed from mild steel plate with 16mm thick Hardox 400 liners bolted in. The hopper is constructed to accept the primary tipping grid and the tipping cylinders.

Vibrating feeder - primary - The primary vibrating feeder is 4.8m long x 1.3m wide and is fitted with a removable 25mm Hardox 400 wear floor. The grizzly cartridge is fitted standard at 90mm - 65mm aperture and is a double step cartridge. The double step allows material to roll as it vibrates over the grizzly, this rolling action helps in the scalping process. The feeder is driven via a twin shaft exciter coupled to a hydraulic motor, and the speed is controlled through the variable flow valve fitted to the hydraulic circuit.

Side scalping conveyor - 1200mm wide troughed side product conveyor fitted with full-length skirt panels and product feeder receiving hopper. All bearings are self-aligning spherical roller bearings. The conveyor is driven via a hydraulic motor mounted at the head drum.

Oversize transfer chute - Fitted beneath the front of the primary vibrating feeder is the oversize, or mid product transfer chute. This chute is designed to accept the material retained on the grizzly feeder and discharge the material forward onto the ground.

Hydraulic System - The hydraulic circuit is designed based on keeping it simple and not allowing the system to dominate the user. All hydraulic power is taken from the rear of the CAT engine, via a direct drive gearbox system supplied by CAT.

The valves to run the items of plant is located at the front and rear of the plant. These valves are preset and can be manually overridden should the need arise. All components selected for the hydraulic circuit and drives are availiable world wide through the Danfoss network.

Platforms & Guards - All drives and pinch points are in accordance with Australian and International Standards for guarding of mobile plant.  The engine can be accessed via either side.

Electric’s - All electrical controls are mounted in a weatherproof cabinet inside the electrical control box on the side of the chassis. These electrics control the full functions of the plant via a PLC system and remote control.
The remote control used has a continuous pulse system that transmits to and from the remote to ensure that the crusher is always seeing the remote, therefore ensuring the operator full control of the plant. Should the remote loose power an umbilical cord will allow the remote to continued to be used. Prior to the plant functions operating an audible alarm will sound prior to plant functions commencing.

Controls - Variable speed control of the feeder is achieved through a proportional flow control valve operated from the plant-mounted control box as well as a radio control unit. The plant mounted control box for the feeder (on/off and speed control) along with the engine and other plant controls are positioned in a lockable box mounted below the engine. A radio control unit is provided for the tracking function giving a tracking speed of approximately 1 Km/hour and a “creep” facility for loading, off loading and precise slewing movements. This also provides stop and start control for the vibrating grizzly feeder from a remote position. An emergency stop button is provided on each side of the plant in both the forward and rear locations.

General Assembly - General assembly allows for a trial assembly of all major components prior to painting and final assembly after painting and includes consumables and labour. The complete plant is fully painted prior to final assembly, blast class 2.5, epoxy zinc phosphate 2 pack primer and enamel topcoat. All bolts are fitted with nylock nuts to prevent items vibrating loose during transport or operation. The complete plant is test run in the factory and all settings are pre-set to ensure minimum time on site for fine-tuning is required.