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Robotic Tracked Crawler

This track mounted, remotely controlled, submersible, self propelled dredging unit is ideal for applications in hard to access tanks and pits. This unit was designed for explosion proofing in tank operations with rubber cleats, and stainless steel and aluminum fabrication to eliminate sparking. Pump options include a LWT model 950 chopper pump for slurries (for API separators or municipal sewage digesters) or a piston pump (viscous crude oil sludges in petroleum storage tanks). The unit has 12 volt electronic, hand held, joy stick controls for track steering, direction and track speed. The pump speed, as well as auger/cutter head direction and speed, are electronically controlled by potentiometers. The ROBOTIC CRAWLER unit is powered by a diesel or electric powered hydraulic unit. The hydraulic flow is supplied to the track unit through a self contained bundled hose set.

LWT Pit Hog Robotic CrawlerThe LWT PIT HOG™ ROBOTIC CRAWLER has sufficient traction and power to pull the hydraulic supply and the non-collapsible discharge hose. The hydraulic hose and discharge hose is controlled by the powered hose reel included with the system. The hydraulic and discharge hoses never have to be removed from the reel, as the hydraulic flow and slurry runs through swivels built into the hose reel.

PIT HOG™ ROBOTIC CRAWLER DREDGING SYSTEM

PIT HOG™ ROBOTIC CRAWLER DREDGING SYSTEM
GENERAL Length 72" (1.82 m)
Width 36" (0.91 m)
Height 32" (0.81 m)
Weight 850 lbs (385.5 kg)
The unit dismantled will pass through a 28" 
(0.71 m) diameter Man-way or opening
PROPULSION Skid steered rubber cleated track drive variable from 0-60 fpm (18 m/min)
CUTTER HEAD
Auger Type with Shroud
Length 25" (0.63 m)
Speed Variable to 50 rpm
Cutter Torque Variable to 2,625 in.lb.
PUMPS Stainless Steel LWT Model 850 with a 2.5" solids handling capability (6.35 cm)
Impeller Size
(centrifugal open)
8" (0.2 m)
Speed Variable 0 to 1850 rpm
Typical head capacities 150 gpm @ 75' head (568 l/min/22.8 m)
Fixed Displacement Hydraulic Drive Motor
POWER
John Deere Engine
Model 4045TF150
Intermittent Horsepower @ 2500 rpm 100 (74.6 kw)
Fuel Capacity 40 gallons (151 liters)
HYDRAULIC SYSTEMS Track Drive 3.5 gpm (13.24 l/min)
Cutter Head 3.5 gpm (13.24 l/min)
Slurry Pump Drive 25 gpm (94.6 l/min)
Hydraulic Flow 40 gpm (151 l/min) @ 2500 psi (172 bars)
Pressure Relief Setting PSI 3000 (207 bars)
Reservoir Size 60 gallons (227 liters)
Pressure Compensated, Piston Hydraulic Pump
Engine Fan Cooled Oil Cooler and Filters
Electronic Proportional Control Valve
CONTROL SYSTEM Radio Controlled from a Hand-Held Transmitter to the Hose-Handling Reel
From the Hose-Handling System to the Crawler via Commutation Cable with a Maximum Distance of 200 feet (61 m)
FUNCTIONS Engine Idle/Stop
Left Track Forward/Reverse
Speed
Right Track Forward/Reverse
Speed
Slurry Pump On/Off
Auger On/Off
ELECTRICAL SYSTEM Voltage 12 VDC
HOSE REEL Hydraulic powered to wind and unwind hydraulic hose and discharge hose. Specially designed to control hoses without their removal from the reel system. Hydraulic flow through the reel system from the power unit. Will handle up to 200 feet (61 m) of hydraulic and 3 inch (7 cm) discharge hose.
CONSTRUCTION Unit may be optionally fabricated with Stainless Steel and other spark-resistant materials.
The LWT Robotic Crawler unit functions only with a pressure compensated hydraulic system with variable electro-hydraulic proportional directional control valve. This system allows independent control of all functions where changing the speed of one function will not affect the flow or pressure to any other function.

These specifications are representative of a typical unit, but are subject to change without notice at LWT's discretion.

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Liquid Waste Technology, LLC

1750 Madison Avenue
New Richmond, Wisconsin, USA 54017
email: sales@lwtpithog.com
phone:715-246-2888 fax:715-246-2573
800-243-1406
fax: 715-247-3934


Liquid Waste Technology, LLC


1750 Madison Avenue
New Richmond, Wisconsin, USA 54017
email: sales@lwtpithog.com
phone:715-246-2888 fax:715-246-2573
800-243-1406