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LWT 8" Swinging Ladder Dredge

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Quick Details

Place of Origin:
United States
Brand Name:
LWT
Model Number:
8" Swinging Ladder Dredge

Specifications

Liquid Waste Technology (LWT) specializes in the design and manufacture of custom solutions for the dredging industry.

"SWINGING DRAGON"

 

SPECIFICATIONS

 

General

 

Length with Ladder overall............56-6"

WidthHull, overall................10-0"

Width-Shipping, overall......10-6"

Height-Overall (without spuds)............11-6-1/2"

Height-Overall (shipping).........10-0"

Dry Weight (estimated).......51,000 lbs

Average Draft (estimated).........2-4"

Fuel Capacity (3" Air Space) - (2 independent fuel tanks).......250 U.S. Gallons

Hull

 

Length..........49-4"

Depth...........3-6"

Width........10-0"

Built-in Ballast Tanks.........@ 4 corners

Minimum Exterior Steel Plate Thickness...........3/16"

Lifting Lugs for lifting complete dredge..........4

Diesel Engine

 

John Deere Model 8.1 L6081HF070 Turbocharged Diesel EngineRadiator Cooled. Continuous Power Rating 325 HP @ 2200 RPM. 12V DC Electrical System. Engine Control Panel with Digital Read-Outs in Operators Cab.

Dredge Pump

 

8" Dia Suction x 8" Dia DischargeHull Mounted. 19.5" Dia 3-Vane. Impeller - Thread-mounted on a Heavy-Duty Shaft. Wet End Parts (Impeller, Casing, Suction Cover & Replaceable Rear Liner) - 28% High Chrome Alloy Cast Iron (600 BHN Minimum). Oil lubricated bearing assembly with lip seal. Rope Packing on Pump End with Water Flush. Anti-Friction Roller Bearings for Thrust and Radial Loads. Typical Operating Point3,000 GPM @ 150 of Head (Water) @ 1132 RPM. Efficiency @ Typical Operating Point 77%. Maximum Sphere Size 3.625"

Cutter Head

 

Cutter diameter 27". Number of Blades 5. Shaft diameter 2-1/2". Torque Rating 31,500 lb/inch. Speed Range 0-40 RPM. Cutter Horsepower 25. Cutting Force 2,250 lb. Unit Cutting Force 75 lb/inch

Dredge Range

 

Minimum Digging Depth 2-4". Maximum Digging Depth 15. Width of Cut @ 2-4" Digging Depth -22'-0". Width of Cut @ 15 Digging Depth - 18-3"

Ladder Swing Cylinder

 

Nominal Size .........6" Bore x 18" Stroke

Rod Diameter............2-1/2"

Style..........Connecting Rod End(s)

Burst Pressure.........7,500 PSI

Operating Pressure..........2,500 PSI

Ladder Hoist Cylinder

 

Nominal Size ............6" Bore x 30" Stroke

Rod Diameter...........2-1/2"

Style............Connecting Rod End(s)

Burst Pressure.............7,500 PSI

Operating Pressure..........2,500 PSI

Kicker Spud Cylinder

 

Nominal Size ............6" Bore x 10" Stroke

Rod Diameter.............2-1/2"

Style...........Connecting Rod End(s)

Burst Pressure..........7,500 PSI

Operating Pressure...........2,500 PSI

Spud Hoist Winches

 

Type- High performance, high efficiency, planetary hydraulic winch. Line Pull - 2,200 lb. Line Speed (Up and Down) - 83 FPM. Maximum Operating Pressure - 2,500 PSI. Wire Rope Diameter and Type - 1/2" 6x19 Galvanized Wire Rope

Hydraulic Systems

Pump Drive - Double Pump Engine Direct Drive.

Circuits: Dredge Pump (Closed Loop): 5,000 PSI Max Continuous Rating. 5,500 PSI Relief Pressure Setting

Cutter Head & Auxiliary. 2,500 PSI Continuous Rating. 2,800 PSI Relief Pressure Setting

Circuit Type(s): Dredge Pump Closed Loop Hydro-Transmission. Auxiliary Controls 8 bank proportional directional control valve(s)

Operator's Cab

Construction - Steel galvannealed sheet wrapper with steel tubular frame, sound attenuating foam insulation on walls and ceiling, and tinted safety glass windows. Bi-fold door on both sides of cab. Heating/Cooling - Roof mounted air conditioner with hot water heater and fan

Engine Control Panel

Diesel engine control panel with read-outs including speed control, tachometer, oil pressure, coolant temperature, high temperature and low oil pressure shut-down

Controls

Individual "Finger-Tip" Control Switches:

  1. Dredge pump On/Off and Speed

Cutter head Fwd/Off/Rev and speed

Ladder swing cylinder, Starboard/Off/Port and Speed

Ladder hoist cylinder, Up/Off/Down

Starboard spud hoist, Up/Off/Down

Port spud hoist, Up/Off/Down

Kicker spud hoist, Up/Off/Down

Kicker spud, Fwd/Off/Rev

Service water pump, On/Off

Lighting

Front and Rear Work Lights. Interior Cabin Light

Instruments

Gauges:

  1. Slurry Pressure and Vacuum Gauges (Dial Type)
  2. Hydraulic Pressure Gauge, Dredge Pump Circuit
  3. Hydraulic Pressure Gauge, Cutter Head Circuit
  4. Hydraulic Pressure Gauge, Auxiliary Circuit(s)

Options

Windshield Wiper & Horn Dredge Positioning System Production Meter Suction/Discharge Relief Valve

Safety Equipment

Two fire extinguishers, two life vests, and life ring.

Coating System

All surfaces contacting liquid in the waterway are sandblasted and given two coats of coal tar epoxy having a minimum film thickness of 12 mils (DFT). All other surfaces are primed and coated with two coats of urethane enamel having a combined minimum film thickness of 4 mils (DFT). The cab, diesel engine, hydraulic pump drive, hydraulic components, etc. have their original OEM coatings.

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Basic Information

Product/Service (We Sell): Dredger, Dredge, Robotic Crawler, Pumps, Sand Dredge,  

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Unverified Supplier - LWT - Liquid Waste Technology
United States | Contact Details

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Mr. John Krahling
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