Section 2 Page2
Section 2 Description and Technical Information
2.1 Application & Limitations
The E-7 has been designed and constructed to separate a wide range of materials such as stone,
Top Soil, Coal, Compost and recyclable waste. The E-7 must not be used for any other purpose
without first contacting Extec Ltd technical department.
The E-7 must not be operated until the Instructions supplied with the machine are read and fully
understood.
2.2 Description
The E-7 is a self contained tracked machine built to withstand the rigours and conditions of
operating in quarries and within the construction industry. The E-7 utilises a diesel engine to
provide the power to the hydraulic power pack and to generate electricity for the electrical
systems of the machine.
The tracks, feeder, Screenbox, conveyors and all other working parts of the machine are all
hydraulically driven.
Where possible all of the moving parts of this machine are guarded, where not warnings are
provided. The Safety Section of this manual must be read and fully understood. Any residual
organisational, personal and environmental issues must be fully addressed as detailed in the
safety section.
This equipment has been manufactured and assessed to be in accordance with the Supply of
MachinerySafetyRegulations98/37EC.
2.3 Operation description
Section 3 of this manual provides details of Transport Commissioning and Operation this must be
read and fully understood before operating this equipment.
Material is loaded normally by excavator into the Feeder where the material is transferred
towards the Screenbox,
The material passes over the Screenbox where smaller material will fall through the Top Deck
and onto the Bottom Deck.
The larger material that has stayed on the Top Deck is fed to the Tail Conveyor and is stockpiled
at the rear of the Machine.
The smaller material that has fallen through to the Bottom Deck is transferred either to the L/H
Side Conveyor or falls through to the Fines Conveyors and is stockpiled at either side of the
Machine.
Section 2 Page3
2.4 Key Features of the Extec E-7 Track Mounted Screener
x Diesel hydraulic power Via Deutz BF4M 2012 C engine – 94 hp. Providing Hydraulic
transmission without clutches.
x Apron/Belt feeder with automatic control to regulate the feed into the Screenbox, the
hydraulic system automatically coordinates the flow of material from the feeder over the
Screenbox to the Conveyors.
x Fast set-up time on site
x Low loading Feeder with hydraulic folding sides
x Heavy duty Screenbox with aggressive throw, also generous clearance between decks to
maximise screening potential
x Adjustable screening angle
x Large stockpile capacity with all conveyors
x Numerous Screenbox options, from heavy duty tines and punched plate on the top deck
to quick changing mesh and cascade fingers on the bottom deck
x Hydraulic speed adjustment system to regulate the product output.
x Access Platforms
x Machine is self propelled by Remote Control or Umbilical
2.5 Common Applications
x Top Soil
x Crushed Stone
x Coal
x Sand and Gravel
x Compost
x Recycling / Demolition
This list is by no means exhaustive Contact Extec for further details of performance figures and
advice on your material.
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