1. Service Training 2014 Kalmar
SB Breakers
Service Training 2014
Kalmar

3. SB Hydraulic Breakers
Introduction

4. SB Hydraulic Breakers Small Breaker Range SB =Solid Body
Smallest Atlas Copco breaker series - 8 breaker: 50 – 720 kg
Unique solid body concept
Carrier class: 0,7 to to
VibroSilenced™ concept

5. SB Hydraulic Breakers Solid Body Concept Easy to Use Easy to Install
Optimal impact energy/ frequency
Increased efficiency
Easy to Install
Built-in, pre-set pressure valve
Different restrictors available
Easy to Service
Quick tool change
Floating wear bushing
Integrated accumulator
Compact Design
Less movable parts
No breaker box
No separate guiding elements
No side bolts
Removal cylinder-liner/ & percussion piston

6. SB Hydraulic Breakers
Technical Data

7. SB Hydraulic Breakers Competitors Premium Brands Value Brands
High number of basic brands influencing the market segment
Asian brands
Low quality
Low performance
No features/ options

8. SB Hydraulic Breakers Carrier Skid Steer loader Backhoe loader
Micro excavator
Mini excavator
Wheeled excavator
Crawler excavator
Pedestal boom system
Demolition robot

9. SB Hydraulic Breakers
Carrier

10. SB Hydraulic Breakers Applications Road-Construction Light demolition
Indoor renovation
Gardening and landscaping
Mining and quarrying
Metallurgical industry (slag recycling and cleaning)

11. SB Hydraulic Breakers
Special Applications – Underground Rock Excavation
Scaler versions
SB 302 SC, SB 452 SC
Tough scaling application
Heavy wear
Blanc firing
Dust penetration
Water nozzles to avoid dust formation
bar working pressure
Air ventilation required
Reliable lubrication required
Option: Press fit wear bushing
How to scale:

12. SB Hydraulic Breakers Special Applications – Underwater
Suitable for all SB breakers
Compressor required
Breaker may dive fully underwater
A continuous 2bar air-flushing must be provided!

13. SB Hydraulic Breakers Comparison – Working Principle Gas actuation
Oil actuation
Oil/gas actuation
+ Constant impact energy
- Difficult to adapt carriers
- Oil pressure pulsations
- Energy not constant without adjustment
+ No gas accumulator required
- Large oil accumulator
+ Constant impact energy
- Gas accumulator required
+ No/small oil accumulator

14. SB Hydraulic Breakers Comparison – Working Principle Gas actuation
Oil actuation
Oil/gas actuation
NPK e.g. Atlas Copco SB e.g. Atlas Copco MB/HB

15. SB Hydraulic Breakers Solid Body Back head Integrated accumulator
Control valve
Cylinder liner
Solid Body
Double tool retainers
Integrated accumulator
Oil drainage plug
Percussion Piston
Floating wear bushing
Working tool

16. SB Hydraulic Breakers Solid Body Solid Body Design Mono bloc design
Short Head bolts
Traditional Design
Side bolts

17. SB Hydraulic Breakers Solid Body Solid Body Design No guiding system!
No tie rods!
No parting lines!

18. SB Hydraulic Breakers
Solid Body
Solid Body
Design
Few moving
Parts

19. SB Hydraulic Breakers A1 > A2 Working Principle A1 A2 A1 A2
Control section

20. SB Hydraulic Breakers
Working Principle

21. SB Hydraulic Breakers
Working Principle

22. SB Hydraulic Breakers
Working Principle

23. SB Hydraulic Breakers
Working Principle

24. SB Hydraulic Breakers
Working Principle

25. SB Hydraulic Breakers High Pressure Accumulator Maintenance free
Prefilled by factory
Robust diaphragm
Reduced distortion
Easy Charging
Accumulator integrated in the body
No expansion bolts

26. SB Hydraulic Breakers Overload protection
Integrated Pressure Relief valve
Standard on all SB breakers
Protection against pressure peaks
Opens at 150 bar and more

27. SB Hydraulic Breakers Restrictor selection Integrated Restrictor
Different diameters available
Allows optimal percussive performance
Increases the pressure at nearly constant oil flow

28. SB Hydraulic Breakers
Restrictor selection

29. SB Hydraulic Breakers
Connection Ports

30. SB Hydraulic Breakers Idle Stroke Protection Damping oil chamber
No pressure peaks on the piston seals
Too high energy is absorbed
Stress reduction during blanc firing
Vibration reduction on carrier and breaker
The Idle Stroke Protection is no 100% insurance.
Blanc firing still hurts the breaker and the carrier!

31. SB Hydraulic Breakers Control Valve Mounted on the side
“Revolver” design
Very less internal leakage
Separate valve cover with dust protection
SB52 – 202 SB302 – 702

32. SB Hydraulic Breakers Working Tool Locking System
Double tool retainers
Oval shaped
Reduces tool rotation, torsion and wear
2-sided usable
High energy absorption at blanc firing

33. SB Hydraulic Breakers Working Tool Locking System
1st lock: Retainer bars
2nd lock: Locking pin
3rd lock: Lock buffer
Less wear
Easy and quick to handle

34. SB Hydraulic Breakers Wear Bushing Full length wear bushing
Standard: floating fitting
Scaler version: press fitting
Only locked by the retainer bars
Quick and easy removable
Integrated dust wiper

35. E KIN SB Hydraulic Breakers Energy Recovery Anvil effect
Reuse of recoiled energy
Higher percussive performance
Less vibration and stress to the breaker and carrier
Increase of impact frequency !
Constant single blow energy !
E KIN

36. SB Hydraulic Breakers SB 702 60 bar high pressure accumulator
Removable bottom wear plate
Upper press-fit wear bushing
Lower floating wear bushing
Special service tools available

37. SB Hydraulic Breakers Maintenance – HP Accumulator
Accumulator repair kit available
Easy refill
No special tools required
1/8” Minimess adaptor
Service box 1 – 3 can be used

38. SB Hydraulic Breakers Maintenance – Wear Bushing Floating fitting
No press necessary
Service tools available
Local sourcing . Drawings!

39. SB Hydraulic Breakers Lubrication
Tools, tool retainers and bushings need to be lubricated regularly
Grease always in an upright position!
Scaler rigs should be fitted with a central lubrication system
Use Atlas Copco chisel paste
High melting point
High level of graphite and copper
Stability and superior lubrication

40. SB Hydraulic Breakers Contilube™ II micro Automatic lubrication pump
Optional equipment for SB breakers
Self bleeding
150g cartridges
Refillable
Suitable to chisel paste filling device
Working up to 35 bar back pressure

41. SB Hydraulic Breakers
Contilube™ II micro - Mounting

42. SB Hydraulic Breakers Contilube™ II – Working Principle
Hydraulic grease pump
1 grease line
1 pressure line
Direct connected to the breaker
Working principles of Contilube™ II micro and Contilube™ II are equal !

43. SB Hydraulic Breakers Contilube™ II – Working Principle
Set delivery
Counter nut
Large delivery piston
Small delivery piston
Delivery adjustment screw
Cartridge piston
Grease cartridge
Self cutting thread
Cartridge seal

44. SB Hydraulic Breakers Contilube™ II – Adjustment of the Consumption
Unscrew the counter
Turn clockwise
Delivery decreasing
Turn anti-clockwise
Delivery increasing
Tighten the counter

45. SB Hydraulic Breakers Contilube™ II – Adjustment of the Consumption
As long as you are able to tighten up the counter nut,
the maximum pump delivery is not exceeded.

46. SB Hydraulic Breakers Contilube™ II – Adjustment of the Consumption
Bottom up the adjusting
screw in the casing
Unscrew by two turns!

47. SB Hydraulic Breakers Contilube™ II – Working Principle
Hydraulic power source
Lubrication port

48. SB Hydraulic Breakers Contilube™ II – Working Principle
Lubricaton port
Hydraulic power source

49. SB Hydraulic Breakers
Contilube™ II – Working Principle

50. SB Hydraulic Breakers
Contilube™ II – Working Principle

51. SB Hydraulic Breakers
Contilube™ II – Working Principle

52. SB Hydraulic Breakers
Contilube™ II – Working Principle

53. SB Hydraulic Breakers
Contilube™ II – Working Principle

54. SB Hydraulic Breakers
Contilube™ II – Working Principle

55. SB Hydraulic Breakers
Contilube™ II – Working Principle

56. SB Hydraulic Breakers
Contilube™ II – Working Principle