1. Sandvik Construction Module 3 CJ jaw crushers
A world leader in Construction
Module 3
CJ jaw crushers
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2. Sandvik Jaw Crushers Environment, Health,Safety Our first priority
Safety first everywhere our equipment is in use and in our own organization
Our aim is to achieve zero work related injuries and illness
EMERGENCY EXITS
FIRE ALARM
ASSEMBLY POINTS
EHS leadership from all employees Risk based EHS management systems Certification to OHSAS & ISO Sustainable and continual improvement
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3. Sandvik Jaw Crushers Agenda How the CJ-series works
Where is the CJ application?
Product Range/Technical Data
Selection Procedures
Benefits and Features
Competitor Comparison 3
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4. Sandvik Jaw Crushers Function Draw back system Eccentric shaft
Fixed points
Draw back system
Toggle plate 4
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5. Sandvik Jaw Crushers Function Motion pattern Circular at top
The moving plate moves in an elliptical motion that will
assist the stones to transport through the chamber.
Circular at top
Open ellipse in the centre, closing lower in the chamber
Becoming almost a straight line at the bottom
Stroke
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6. Sandvik Jaw Crushers Typical applications
The most common primary crusher for tough and abrasive materials.
Applied to all mineral and ore bearing rocks in the construction and mining industries.
Feed opening sizes range from 400 mm to 1500mm.
Product sizes from typically 50mm to +300mm.
Capacities from 50 to 1500 tonnes/hr. 6
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7. Sandvik Jaw Crushers Where does it fit in the process?
Almost always as a primary crusher. May occasionally be employed as a secondary in low capacity, low cost operations. 7
Sandvik Group Sandvik is a global industrial group with advanced products and world-leading positions in selected areas – tools for metal cutting, equipment and tools for the mining and construction industries, stainless materials, special alloys, metallic and ceramic resistance materials as well as process systems. In 2010 the Group had about 47,000 employees and representation in 130 countries, with annual sales of nearly 83,000 MSEK. Sandvik Mining Sandvik Mining is a business area within the Sandvik Group and a leading global supplier of equipment and tools, service and technical solutions for the mining industry. The offering covers rock drilling, rock cutting, rock crushing, loading and hauling and materials handling. Sandvik Machining Solutions Sandvik Machining Solutions is a business area within the Sandvik Group and a global market-leading manufacturer of tools and tooling systems for advanced industrial metal cutting. Products are manufactured in cemented carbide and other hard materials such as diamond, cubic boron nitride and special ceramics. Sandvik Materials Technology Sandvik Materials Technology is a business area within the Sandvik Group and a world-leading manufacturer of high value-added products in advanced materials, special alloys, metallic and ceramic resistance materials. The product areas comprise Tube, Strip, Wire and Heating Technology. Sandvik Construction Sandvik Construction is a business area within the Sandvik Group providing solutions for virtually any construction industry application encompassing such diverse businesses as surface rock quarrying, tunneling, excavation, demolition, road building, recycling and civil engineering. The range of products includes rock tools, drilling rigs, breakers, bulk-materials handling and crushing and screening machinery. Sandvik Venture Sandvik Venture is a business area within the Sandvik Group aiming to create the best possible environment for growth and profitability in attractive and fast-growing operations. The product areas comprise Sandvik Hard Materials, Diamond Innovations, Wolfram, Dormer, Sandvik Process Systems and parts of Sandvik MedTech.
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8. Sandvik Jaw Crushers Components Cheekplates CJ211 illustrated
Mainframe
Eccentric shaft
Swingjaw
Jaw plates
Toggle plate
Retraction cylinder /draw back system 8
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9. Sandvik Jaw Crushers Range Gape Width
CJ613 9
Height: 1,8 meters meters. Feedheight: 1 meter – 3 meter
7 tonnes to 63,5 tonnes.
50 tph – 1280 tph
>1600 CJ since 2000
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10. Sandvik Jaw Crushers Range Technical Data Crusher Intake Opening
CSS mm
Nominal
Speed
Motor Power
metres
inches
Min
Max
Rev/min kW HP
CJ211
1.1 x 0.7
28 x 44 40
175
270 90
125
CJ409
0.9 x 0.65
26 x 36 50
150 75
100
CJ411
1.04 x 0.84
32 x 42
200
240
110
CJ412
1.2 x 0.8
32 x 48
250
132
CJ612
1.2 x 1.1
44 x 48
210
CJ613
1.3 x 1.15
46 x 52
225
160
CJ615
1.5 x 1.1
44 x 60
300
CJ815
1.5 x 1.3
52 x 60
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11. Sandvik Jaw Crushers Capacity Definitons
Capacity : The tonnage passing through the crusher continuously in one hour
Throughput : The tonnage passing through the crusher in one hour (day,week, month,year) taking into account stoppages, interruptions, lack of feed etc. 11
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12. Sandvik Jaw Crushers Capacity Questions to ask the customer
Material type/classification
Ai?
Wi?
Top size?
Dry/wet/muddy?
Capacity required?
Throughput required?
Grizzly separation?
CSS? Shim plate for nip angle improvement?
What comes after the crusher? Max product size?
Jaw plates and anticipated wear rate and wear pattern? 12
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13. Sandvik Jaw Crushers Capacity CJ211 only
Capacities in STPH Capacities in MTPH
CSS (inch)
CJ211
2 3/8
2 3/4
3 1/8
3 ½ 4 5 6 7 8
CSS (mm)
CJ211 60 70 80 90
100
125
150
170
200 13
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14. Sandvik Jaw Crushers Capacity Metric tonnes CJ409 to CJ815
CSS (mm)
CJ409
CJ411
CJ412
CJ612
CJ613
CJ615
CJ815 50
85-115 75
100
125
150
175
( )
( )
200
( )
225
( )
( )
250
( )
( )
275
( )
( )
( )
300
( )
( )
( ) CSS may not be possible to obtain with some jaw plate patterns. 14
( ) CSS may not be possible to obtain with some jaw plate patterns.
The left figures refer to fines removed from feed and the right refers to fines included in the feed.
The Sandvik jawcrusher line is designed for the motor sizes listed in RPM and technical specifications. This means that for harder materials, the crusher will have to be operated at larger settings to avoid overload of drive and/or motor. Using oversized motors will lead to radically shorter crusher life and various mechanical problems. Warranty will not cover this! Capacity figures apply for clean, friable and dry granite with a bulk density of 1.6 t/m³ (100 lbs./cu.ft.) or compact density 2.65 g/cm³.
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15. Sandvik Jaw Crushers Capacity Short tons CJ409 to CJ815
CSS (inch)
CJ409
CJ411
CJ412
CJ612
CJ613
CJ615
CJ815 2
95-125 3 4 5 6 7
( )
( ) 8
( ) 9
( )
( ) 10
( )
( ) 11
( )
( )
( ) 12
( )
( )
( ) CSS may not be possible to obtain with some jaw plate patterns. 15
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16. Sandvik Jaw Crushers Capacity Factors affecting CSS Stroke
Width of chamber
Feed size
Toughness
Bulk density
Clay/Humidity 16
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17. Sandvik Jaw Crushers Throughput Factors reducing Lack of feed.
Bridging/loader bucket dimensions.
Poor nip angle.
Load and haul reliability. 17
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18. Sandvik Jaw Crushers Features & Benefits Nip angle Bearings
Very important regarding the performance of the crusher. Sandvik have a nip angle between 16-23º.
Labyrinth and lip seals to prevent ingress of dust as well as a rigid one piece solid bearing housing for maximum reliability.
Bearings
Heavy duty deflector plate
Important, takes the heavy impacts against the shaft and bearing that occur during crushing. Also helps to direct the material into the crushing chamber.
Foot
Bolt on feet allows the crusher to be positioned in different angles and lowered down onto a mobile chassis or a steel structure.
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Tip: Excavator bucket matching the size of the jaw crusher

19. Sandvik Jaw Crushers Features & Benefits Feed capability
Symmetrical chamber.
Gape
Width
Well dimensioned gape to width ratio
Feed opening dimensions are measured horizontally.
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20. Sandvik Jaw Crushers Features & Benefits
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21. Sandvik Jaw Crushers Features & Benefits Setting Adjustment Methods
Hydraulic setting regulation by push button control, semiautomatic or manual setting system
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22. Sandvik Jaw Crushers Features & Benefits Manual adjustment Standard on
CJ409
CJ411
CJ612
CJ613
CJ615
CJ815 22
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23. Sandvik Jaw Crushers Features & Benefits Semi -automatic Available on
CJ612
CJ615
CJ815 23
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24. Sandvik Jaw Crushers Features & Benefits Standard on CJ211 CJ412
Available on
CJ612
Dust Curtain
Upper Toggle Seat
Toggle Plate
Wedges
Lower Toggle Seat
Retraction System
Hydraulic Cylinders 24
Tip: Excavator bucket matching the size of the jaw crusher
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25. Sandvik Jaw Crushers Features & Benefits Steel shim plates.
To prevent impact on the jaw stock and frame and protect against wear in the event of the jaw plates becoming loose. This is a cost effective insurance .
Shim Plates can be used to improve the nip angle when operating at tight settings
Replaceable support strips are easy to change if the support becomes damaged. Without this capability the whole jaw stock would have to be removed and repaired
Replaceable support strips 25
Tip: Excavator bucket matching the size of the jaw crusher
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26. Sandvik Jaw Crushers Features & Benefits
Coarse Corrugated (CC)
Sharp Teeth (ST)
Heavy duty (HD)
Designed to give high performance and low operating costs
All jaw plates are reversible
Wide Teeth (WT)
Corrugated (C) 26
Tip: Excavator bucket matching the size of the jaw crusher
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27. Sandvik Jaw Crushers Features & Benefits Coarse Corrugated (CC)
More wear resistant compared to C
Used for bigger CSS
Good top size control
Good fines “transport” in between
the teeth.
Heavy Duty (HD)
For very abrasive materials
Not as good top size control
Could be combined with CC on the swing side 27
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28. Sandvik Jaw Crushers Features & Benefits Sharp Toothed
Very good top size control.
Good fines “transport” in between teeth
Good gripping ability
Good reduction ratio
Highly recommended if the Ai is not too high
Corrugated (C)
Suitable for less abrasive materials
Good for small CSS
Good top size control
Good fines transport in between teeth 28
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29. Sandvik Jaw Crushers Features & Benefits Wide Teeth (WT)
The same plate is used for both sides, less stock required
Good wear resistance
Good gripping ability 29
Tip: Excavator bucket matching the size of the jaw crusher
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30. Sandvik Jaw Crushers Competitor comparison Capacity Nip Angle
Nip Angle
 Low frame height with large gape indicates poor nip angle. Also will reduce weight and price
Speed
 Higher speeds--- lower capacity---finer discharge.
Lower speeds---higher capacity---coarser discharge.
Motor capability
 Relates to the strength of the frame and swing-jaw assembly
Feed arrangements
 Gape needs to be dimensioned to accept largest blocks.
Feed size capability
 Lack of protection plate will encourage heavy feed chute with corresponding reduction in feed size capability.
Frame design
Bolted/welded—weld position
 Welded frame distributes forces evenly throughout the frame. Bolted construction concentrates forces towards the friction joint
Box section castings
 Stronger than open castings
Alignment of toggle plate
 Toggle plate has to be aligned to direct the forces evenly through to the rear support
Wear protection
Sacrificial plates behind jawplates
 Lack of protection will eventually lead to expensive repairs to frame and swing-jaw
Replaceable support strips
Bearing housing design
Solid ring v split housing/plummer block
Solid ring will prevent cracking of bearing inner race through stress concentration 
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31. Sandvik Jaw Crushers Competitor comparison
Small diameter
Open section
No ribs
Feed opening smaller than indicated
One spring
Inclined rod
Wear plate
Pins
Weak connection - side plate cracks
Crossbeam
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32. Sandvik Jaw Crushers Competitor comparison Sandvik CJ
Heavy duty head protection plate
No protection plate
Light plate welded to jawstock casting
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33. Sandvik Jaw Crushers Competitor comparison Competitor feed opening
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34. Sandvik Jaw Crushers Competitor comparison Support strips
Frame and swing jaw protection CJ 34
Tip: Excavator bucket matching the size of the jaw crusher
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35. Sandvik Jaw Crushers Competitor comparison Wear Plates
Frame and swing jaw protection
CJ412 illustrated 35
Tip: Excavator bucket matching the size of the jaw crusher
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36. Sandvik Jaw Crushers Competitor comprison Shim plates
CJ412 illustrated
Shim plates replace wear plates.
Thicker shim plates reduce CSS and can be used to recover a poor nip angle at tighter settings with a corresponding small loss of feed opening 36
Tip: Excavator bucket matching the size of the jaw crusher
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37. Sandvik Jaw Crushers Competitor comparison Shim plates
Original setting Original angle
Reduced setting
Reduced angle
Shim plates installed
Further setting reduction
Slight reduction in feed opening
Angle as previous
Crusher setting increased
Improved angle with slight reduction if feed opening.
Shim plates
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38. Sandvik Jaw Crushers Competitor comparison Bearing Housings Load
Some competitors
CJ Jaw
Solid split free housing, with good seal system and adequate bearing capacity factor, guarantee long bearing life with the CJ jaw
Load
Cracking of inner race 38
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Tip: Excavator bucket matching the size of the jaw crusher

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