K7 Scalper Screen

Designed for heavy duty scalping with high productivity

Overview

Heavy duty

Quarrying

Aggregates

Sand & Gravel

The most heavy duty scalper on the market. The K7 and the K7e with its high screen box is designed for heavy duty scalping. The hybrid K7e is diesel/electric driven with plug-in and plug-out functionality for zero emission processing. When the scalping is rough the K7e does the job!

Capacity up to 1,000 t/h

Weight 36,5 t / 40 sT

Double deck screen box 4,5 x 1,8 m / 15' x 6'

High production screen box, upper deck screening fraction up to 200 mm

Available in e-drive: full hybrid diesel-electric and plug in version or ZERO-drive: full electric drive without combustion engine onboard

Heavy duty design for rough scalping and large feed sizes

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Capacity up to	1000 t
Weight	36,5 t / 40 sT
Screen box (l x w)	4500 x 1800 mm / 15' x 6'
Feed hopper in HB450	8 m³ / 10 yard³
Hydraulic folding hopper for transport	•
Heavy Duty Plate Apron Feeder	3560 mm x 1300 mm

Loading height

open back wall	2620 mm
half open back wall	3050 mm
closed back wall	3460 mm
Side loading length	4400 mm

Upper deck m²	8,1 m²
Lower deck m²	8,1 m²
Hydraulic liftable screen box	•
Standard walkway beside screen box	Right side
Standard Long Life Grease: grease interval	every 100 h

Conveyor belts (l x w) & discharge height

Oversize belt conveyor (discharge height)	9063 mm x 1500 mm (4000 mm)
Fine fraction belt conveyor (left) (discharge height)	8650 mm x 1000 mm (3700 mm)
Middle fraction belt conveyor (right) (discharge height)	9500 mm x 1000 mm (3750 mm)
Track-unit: Length, total width, track shoe width	3720, 2550, 450 mm
2-speed track drive	1,1 km/h and 2 km/h
Engine unit(s) 1500/1800 RPM	79 kW/88 kW
Control	PLC – IP 67 LCD screen 4,3" & remote control
Smart sequential auto start/stop from remote control	•

Wear lining in hopper HB 450: 8 mm	•
Several hopper & corner extensions	•
XXL Hopper	10 m³
Apron feeder (XXL)	XXL 4470 mm x 1300 mm
Screen flow break	•
Anti clogging system	•
Fast tensioning system for upper deck screens	•
Dust cover for screen box	•
Walkways (both sides) beside screenbox	•
Wide range op screen media	•
Volumetric belt scale on apron feeder	•

Conveyors

Dust suppression system at conveyors	•
Picking station at oversize belt conveyor	Left & right side
Extra long oversize belt conveyor & discharge heigth	2500 mm longer (4212 mm)
Over belt magnet on oversize belt	•
Over belt magnet on side conveyors	•
Drum magnet and chute on side conveyors	•
Tungsten scrapers	Fines conveyor (left) Under Screen Conveyor

Other options

Lubricated track chains	•
Radio remote	•
Working lights	•
Fuel filling pump	•
Heating system for engine unit: diesel and hydraulic tank	•
Telematics system UMTS/GPS	•
Lifting eyes	•

Specification	Transport dimensions	Working dimensions
Weight	36,5 t (40 sT)
Length	14.850 mm (48’7”)	17.900 mm (58’8”)
Height	3.270 mm (10’9”)	4.000 mm (13’1”)
Width	3.000 mm (9’10”)	15.400 mm (50’6”)

Performance highlights

High production screen box, upper deck screening fraction up to 200 mm

Available in e-drive: full hybrid diesel-electric and plug in version or ZERO-drive: full electric drive without combustion engine onboard

Capacity up to 1.000 tonnes / hour

Feed hopper 8 m³ (10 yard³), several hopper extensions available

Large range of screen meshes, fingers, punched plate, grizzly & rubber decks available

2 speed track drive

Extensive option list to configure to your application

Applications

Pre- screening/scalping

Screening heavy over-burden

Recycling landfill and construction waste

Separation of “sticky” aggregate

Construction and demolition waste

Screening behind or before a crusher

Quarrying and mining

Coal

Armourstone and others

Fuel Efficiency

Disel/hydraulic*

*load sensing hydraulic system

14 l/h

Diesel/electric

10 l/h

Electric plug-in other machinery

5 l/h

Electric plug-in mains

44 kWh

Available drive systems

Diesel / Hydraulic

Plug-in Electric Drive

ZERO-Drive

Benefits of using Keestrack machines

Mobilní technologie

At Keestrack we understand how important mobility is to owners and operators, and this is reflected in the design and construction of our machines. Our aim is to minimize set up times, reduce overall weight and size, and get you up and running as soon as possible.