NORDBERG LT1213application guide lines

LT1213 CAN BE USED FOR CRUSHINGNATURAL ROCK OR RECYCLING MATERIAL

IMPACTOR ADVANTAGES•HIGH REDUCTION RATIO•EXCELLENT END PRODUCT SHAPE•HIGH CAPACITY•SAME UNIT CAN BE USEDAS A PRIMARY AND ASA SECONDARY CRUSHER•VARIOUS END PRODUCTS CANBE CRUSHED WITH ONE CRUSHINGSTAGE•RECYCLING (SEPARATE THE STEEL FROM THE END PRODUCT)•FINE PRODUCT

IMPACTOR DISADVANTAGES•NOT ECONOMICAL TO CRUSHABRASIVE MATERIALS•CAN’T BE USED FOR CRUSHINGVERY HARD MATERIALS

TOP FEED SIZE MINIMUM SETTINGmm mm

420x700x1120 80360x600x960 60180x300x480 50120x200x320 4060x100x160 30

MAX. SETTING 100

LT1213 - CRUSHING NATURAL ROCK

FEED MATERIAL LIMITATIONS

• AVERAGE BOND WORK INDEXLESS THAN 16•MAXIMUM IMPACT WORK INDEXLESS THAN 23

•INDICATIVE ABRASSION INDEXLIMITS FOR ECONOMICAL OPERATION180 g/t, MANGANESE STEEL HAMMERS230 g/t, MARTENSITIC STEEL HAMMERS550 g/t, CHROMIUM CAST IRON HAMMERS

•TYPICAL ROCKS-LIMESTONES, DOLOMITIC LIMESTONE,GYPSUM,TALC,CHALK,MARBLES,MARL,SCHISTS,SLATES

•THREE SPEED RANGE 450, 520, 600

LT1213 - CRUSHING RECYCLING MATERIALS

TOP FEED SIZE MINIMUM SETTINGmm mm

420x700x1120 80360x600x960 60180x300x480 50120x200x320 4060x100x160 30Max setting 100

TYPICAL RECYCLING MATERIALS

•CONCRETE WITH AND WITHOUT REBARS

•MIXED DEMOLITION MATERIAL-CONCRETE, BRICKS,WOOD,STEEL…

•ASPHALT

SORTING OF THE FEED MATERIAL

•CRITICAL FOR SUCCESSFUL RECYCLING OPERATION

•BREAKING DOWN THE OVER SIZE OF THE FEED MATERIAL WILL INCREASE THE CAPACITY

•UNCRUSHABLE MATERIALS MUST BE PULLED OUT FROM FEED MATERIAL

•MAX. RE-BAR DIAMETER 19 mm AND LENGTH 1000 mm

PRE-SORTING OF THE FEED MATERIAL

LT1213 - PROCESS PARAMETRES

FEED CAPACITY

ROTOR SPEED

SETTING

HAMMER MATERIAL

HAMMER CONFIGURATION•FOUR HAMMERS•SLOTTED HAMMERS

POWER CONTROL

SETTING - EFFECT TO PRODUCT CURVE

•ATTACHED PICTURE SHOWS THE EFFECT TO PRODUCTCURVE WHEN SETTING IS CHANGED FROM 100 mm TO 30 mm

•REDUCTION RADIO INCREASE

•POWER DRAW INCREASES FROM 149 kW TO 212 kW

•THE 90% POINT MOVES FROM 120 mm TO 65 mm

Feed curve

90

ROTOR SPEED - EFFECT TO PRODUCT CURVE

•ATTACHED PICTURE SHOWS THE EFFECT TO PRODUCT CURVE WHEN ROTOR SPEED IS CHANGED FROM 450 RPM TO 750 RPM•POWER DRAW INCREASES FROM 84 kW TO 217 kW•THE 90% POINT MOVES FROM 100 mm TO 50 mm •AMOUNT OF -10 mm INCREASES FROM 30% TO 45%•EFFECT OF ROTOR SPEED TO HAMMER LIFE

EXAMPLE FROM FRENCH QUARRY-ABRASSIVITY INDEX 1300 g/t -SPEED DROPPED FROM 650 RPM TO 400 RPM-HAMMER LIFE INCREASED FROM 50 HOURS TO 250 HOURS

Feed curve

90

4 HAMMERS SLOTTED HAMMERS

HAMMER CONFIGURATION

HEIGHT LIMIT FORCHANGING HAMMERS60 mm

0

10

20

30

40

50

60

70

80

90

100

0.01 0.1 1 10 100 1000

Square Scrren Opening [mm]

Cu

mu

lati

ve P

as

sin

g [

%]

4 hammers-338mtph

Slotted hammers-393mtph

Feed

NUMBER OF HAMMERS EFFECTING ON PRODUCT CURVE

•90% POINT IS 80 mm WITH FOUR OR TWO HAMMERS

•AMOUNT OF -50 mm DECREASES FROM 64% to 61%

Hard rock

Speed 450 rpm

Setting 90 mm

High capacity

90

QUALITIES OF HAMMERS

•MANGANESE STEEL The only quality enabling to crush without breakage

Concrete 50 to 100 hours

Demolition 40 to 200 hours

Asphalt 40 to 150 hours

•MARTENSITIC STEEL

With same risks of breakage according to the materials processed and reduction requested.

Resists better to the wear than manganeseConcrete 60 to 150 hours

Demolition 48 to 300 hours

Asphalt 48 to 225 hours

•CHROMIUM CAST IRON

Good for the asphalt processing if there is not tramp iron.

High risks of breakage in concrete and demolition but the financial balance can be

positive if the customer is aware of such risks and accepts them.Concrete 150 to 400 hours

Demolition 120 to 800 hours

Asphalt 120 to 600 hours

FEED CAPACITY - EFFECT TO PRODUCT CURVE

•WHEN FEED CAPACITY IS INCREASED END PRODUCT CURVEWILL BE SLIGHLY COARSER

•WHEN FEED CAPACITY IS INCREASED FROM 50 TPH TO 250 TPHPOWER DRAW IS INCREASED FROM 61 kW TO 214 kW

AUTOMATIC FEEDER CONTROL

Example 1

Example 2

Example 3

•ADJUSTABLE FEED CONTROL

•ADJUSTABLE POWER LIMITS

•ENABLE TO STABILIZE THE MATERIAL FLOW TO FOLLOWING PROCESS

50%

35%

100 bar 200 bar 350 bar

Feed m in area

C LO K area C LLD area

Feed m ax area

Feed Speed %

C rusher P ressure bar

70%

SUMMARY

Slotted

NORDBERG LT1213 APPLICATIONS

Customer: Gebr. Hanssen BVCustomer segment: recycling contractorCountry: NetherlandsTypical feeds: concrete,asphalt,mixed demolition debrisTypical products: concrete -40 mm (nominal capacity 180 t/h)

asphalt -20 mm (nominal capacity 100 t/h)

Customer: Brabant BreCom bvCustomer segment: recycling contractorCountry: NetherlandsTypical feeds: concrete,asphalt,mixed demolition debrisTypical products: concrete -40 mm (nominal capacity 180 t/h)

asphalt -20 mm (nominal capacity 100 t/h)

Customer: Wimmer&WecksCustomer segment: quarry and contractingCountry: GermanyTypical feeds: hard stone, recyclingTypical products: in customers quarry -50 mm, average capacity

280 t/h, bond index 22,4 kW/t, shatterindex 41, dolomite, feed size -500 mm

Customer: Kurt Eberle agCustomer segment: recycling contractingCountry: SwitzerlandTypical feeds: asphalt, concreteTypical products: asphalt -20mm, capacity 100 t/h + 5-10%

oversize

Customer: Hagedorn Recycling GmbHCustomer segment: recycling contractorCountry: GermanyTypical feeds: Mixed recycling material reinforced concrete, asphalt, bricks,

top soil, rock 0-600 mmTypical products: size 0-8 mm 8-45mm 45-mm / 150 mtph

Customer: Simmerather Recycling GmbH, Stephan BrownCustomer segment: recycling contractorCountry: GermanyTypical feeds: Mixed recycling material concrete, asphalt, rock, bricks, top soil

0-700 mmTypical products: size 0-4 mm 4-45mm 45-100mm / 25 mtph

Customer: EcklCustomer segment: Aggregates ContractorCountry: Germany

Typical feeds: Limestone 0-400 mm Typical products: size 0-120 mm / 183 mtph

Customer: Baumaschinen Alfred Plötz Customer segment: Aggregates ContractorCountry: Germany

Typical feeds: Granite 0-150 mm Typical products: size 0-32 mm / 130 mtph

Customer: Wimmer&Wechs Customer segment: Aggregates ContractorCountry: Germany

Typical feeds: Gravel 0-200 mm Typical products: size 0-32 mm / 260 mtph