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Cold planers Prestudy Jan 2009 / Jürgen Seemann

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Cold planers Prestudy Jan 2009 / Jürgen Seemann. Introduction questions. What is cold milling? What is needed for a cold milling operation ? What are the key factors to compare cold planers? What are the key components of a milling drum? What are the four recycling methods?

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Cold planers Prestudy Jan 2009 / Jürgen Seemann
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  1. Cold planers Prestudy Jan 2009 / Jürgen Seemann

  2. Introduction questions • What is cold milling? • What is needed for a cold milling operation ? • What are the key factors to compare cold planers? • What are the key components of a milling drum? • What are the four recycling methods? • What are typical cold milling jobs ?

  3. What is cold milling? • Cold milling is the controlled removal of an existing pavement to a desired depth or slope. • The cold planer is therefore equipped with a rotary cutting drum. The drum has specially designed and replaceable tungsten carbide cutting teeth/tools/picks that remove or mill the existing pavement. • The cutting drum rotates in an “up-cut” direction, means, the rotation is opposite to the moving direction of the cold planer. • The reclaimed asphalt pavement (RAP) is loaded into a truck by a conveyor system on the milling machine and typically removed from the site. • The RAP is than recycled in a central asphalt mixing plant and reused as mixture for new asphalt pavements.

  4. What is needed for a cold milling operation ? • A cold planer, adapted in size, power and system for the desired milling operation • Haul trucks to remove the RAP from the site • Water trucks to refill the water tank of the cold planer, which is needed to control the dust and cool the tools • Sweeper or power broom to clean the surface

  5. What are the key factors to compare cold planers? • Milling drum (width and max. cutting depth; drum layout) • Operating weight (drum load = kg/ mm cutting width) • Horse power (power load = hp/ mm cutting width) • Loading system (front/rear loading) • Track or wheeled traction system

  6. What are the key components/factors of a milling drum? • Cutting width and max cutting depth • Drum layout • number of tools (spacing) and • number of tools per cutting lane • Tool holder system • welded or • replaceable system (quick change system) • Tungsten carbide tools

  7. What are the four recycling methods ? • Cold Planing (CP) • Hot In-Place Recycling (HIR) • Cold In-place Recycling (CIR) • Full Depth Reclamation (FDR)

  8. What are typical cold milling jobs ? • Repair and maintenance work (potholes, cracks, wheel ruts etc. etc.) • Removal of the total asphalt structure for roadway reconstruction • Mill to a desired depth to prepare road surface for an overlay • Texturing the surface to increase road safety • Correct slope for a better drainage • Removal of road markings (with micro milling drums) • Trenching jobs (for cable or pipe laying) • Special jobs like milling of safety lanes (rumble strips)

  9. The components of a large cold planer – back side 1) Operator dashboard 2) Panels for ground man 3) Cutter housing with milling drum 4) Side shields 5) Moldboard 6) Tracks

  10. The components of a large cold planer – front side 8) Water tank 7) Drum drive 9) Discharge conveyor 10) Height adjustable legs 12) Downholder 11) Primary conveyor

  11. The components of a drum 7) Cutter tool 4) Toolholder 3) Spirals / Vanes 6) Kicker 2) Flange 5) Edge cutter 1) Barrel

  12. Parameters which influence the milling performance Machine parameters Material parameters Site conditions Traffic control Transport capacity Operating staff Working width Asphalt condition Cutting depth Type of barricading Number of lorries Qualification Engine power Type of rock Organization Unobstructed area Obstacles Weight Grain shaperound/broken Traffic situation Partial repair work Cutting speed Binder type Obstructing factors Type of bit / Line spacing Temperature Travel drive tracked / wheeled Area capacity = advancing speed x cutting width

  13. Denomination of Dynapac cold planers PL XYZ XY S = 2nd generationT = 3rd generation L = Light version (PL2000LS)R = Rear conveyor (PL1000RS)D = Deep cut (PL 500TD) Cutting width in mm Planer

  14. Four platforms / 8 models PL 500T PL 500TD PL 350T PL 2000LS PL 2000S PL 2100S (two control systems) PL 600/30S PL 1000RS

  15. PL 350T – technical data • Cutting width350 mmCutting depth100 mm • EngineCummins B3.345 kW / 60 hp / 61 PS @ 2200 rpm • WeightTransport weight2,45 toOp. weight (CE)2,8 toBallast weight 1,1 toMax weight (CE)4,25 to • Dimensions w/o conveyor 2.973 x 1.332 x 1.925 mm

  16. Compact planer PL 350T Main applications • Working in conjunction with bigger planers to cut leftovers • Cutting around man hole covers • Cutting of joints • Repair and maintenance work • Demarcation of road marking. • Daily output ~ 250 m² ~ 20 m³

  17. PL 500T and PL 500TD – technical data PL 500TPL 500TD • Cutting width500 mm500 mm Cutting depth160 mm200 mm • EngineCummins QSB4.5-C110QSB4.5-C13082kW / 110hp97kW / 130hp @ 2200 rpm@ 2200 rpm • WeightTransport weight6,9 to7,2 toOp. weight (CE)7,2 to7,5 toLong conveyor 0,6 to0,6 toMax weight (CE)8,3 to8,6 to • Dimensions w/o conveyor of both models2.973 x 1.332 x 1.925 mmLong conveyor5.900 x 900 x 900 mm

  18. Compact planers PL 500T and PL 500TD • Daily output~ 400 - 500 m²~ 40 - 60 m³ Main applications (as of PL 350T) • Working in conjunction with bigger planers to cut leftovers • Cutting of joints • Repair and maintenance work • Cutting of trenches (PL 500TD)

  19. PL 600/30S and PL 1000RS – technical data PL 600/30SPL 1000RS • Cutting width600 mm1000 mm Cutting depth300 mm250 mm • EngineCummins QSB5.9QSB5.9129kW / 173hp129kW / 173hp @ 2100 rpm@ 2100 rpm • WeightTransport weight12,2 to12,4 toOp. weight (CE)13,0 to13,2 toMax weight (CE)13,7 to13,9 to • Dimensions w/o conveyor of both models4.300 x 2.250 x 2.600 mmConveyor5.900 x 900 x 900 mm

  20. Compact planers PL 600/30 and PL 1000RS Main applications: • Larger milling jobs (PL 1000RS) • Cutting of street junctions • Repair and maintenance work • Cutting of trenches (PL 600/30S) • Daily output~ 600 – 2.000 m²~ 75 m³ - 120 m³

  21. PL 2000LS/S and PL 2100S – technichal data PL 2000LS/SPL 2100S • Cutting width2010 mm2100 mm Cutting depth320 mm320 mm • EngineCummins QSX15QSX 15447kW / 600hp447kW / 600hp @ 2100 rpm@ 2100 rpm • WeightTransport weight28,2/31 to31,4 toOp. weight (CE)30,7/33,5 to33,9 toMax weight (CE)33,4/36,2 to36,6 to • Dimensions w/o conveyor of both models8.100 x 2.550 x 3.100 mmConveyor8.150 x 1.350 x 1.050 mm

  22. Large planers PL 2000LS/S and PL 2100S • Daily output~ 10.000m²~ 600m³ Main applications • Highways, airports, country roads

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