Excavators and wheeled excavators have always played a major role in landfill operations helping to dig and load cover material, points out Tom Griffith, senior system/application specialist for the Caterpillar Industrial & Waste Group.
In fact, in a busy facility, they are the primary loading tool, he adds. “They provide support in retention basin clean-out, ditching, gas well construction, cell construction, among other tasks,” says Griffith. “In transfer and material recovery (MRF) facilities, excavators and wheeled excavators play a role in loading, redistributing material, and tamping outbound haul vehicles to gain more weight.”
Excavators and wheeled excavators have always played a major role in landfill operations helping to dig and load cover material, points out Tom Griffith, senior system/application specialist for the Caterpillar Industrial & Waste Group.
In fact, in a busy facility, they are the primary loading tool, he adds. “They provide support in retention basin clean-out, ditching, gas well construction, cell construction, among other tasks,” says Griffith. “In transfer and material recovery (MRF) facilities, excavators and wheeled excavators play a role in loading, redistributing material, and tamping outbound haul vehicles to gain more weight.”
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For material handling, Caterpillar offers a full line of small, medium, and large excavators for use in waste applications, says Griffith. “We also have wheeled excavator offerings that are more mobile in landfill and transfer station/MRF applications,” he adds. “All of these machines can be fitted with waste guarding, debris screens, cab filtration systems, reversing fans, and other components either by Caterpillar or OEMs. Depending on the type of application and its needs, there are several undercarriages, and boom/stick offerings.”
Caterpillar offers tracked and wheeled excavators with multiple types of work tools, such as buckets, orange peel grapples, trash grapples, sorting grapples, construction grapples, and bucket thumbs.
In addition to that, Caterpillar also offers pedestal-mounted models that can either be diesel-driven or electric or hydraulic hybrid, says Griffith. “I foresee more of a need for these in the far future as everyone goes greener,” he adds.
Of note is the newly released Cat MH3027, the fourth and smallest in a new wheeled material handlers series Caterpillar is introducing to global markets in the greater than 25-metric-ton-size class.
At 62,832 pounds (28,500 kg), the MH3027 is designed to deliver optimal performance in a smaller package with a swing radius that is 8.3 inches (213 mm) less than the Cat MH3037. The MH3027 is available in configurations for waste handling, featuring a straight stick, and for scrap handling, featuring a drop nose stick. A debris-resistant cooling package with a hydraulic, variable speed, auto reversing fan and plug resistant coolers also is available.
The Cat cab avoidance system uses sensors on the front linkage to help ensure that the work tool will not contact the cab. The MH3027 model features two hydraulic cab riser options: a cab-to-platform configuration or a “ground level entry and exit” with a step-in cab that lowers to the front or the side of the machine to enhance convenience and safety for operators and service personnel.
The hydraulic cab riser takes the operator to 18 feet for optimal jobsite visibility. Additionally, the cab features joystick steering control and opens the front view for the operator. A standard rearview camera also expands sight lines with optional side view camera.
The MH3027 is powered by a Cat C7.1 ACERT engine that meets US EPA Tier 4 Final/EU Stage IV emissions standards. Emissions control system operation is transparent to the operator with no downtime for particulate filter regeneration.
The engine features an electronically controlled, mechanically actuated, unit-injector fuel system using multiple-injection fuel delivery for optimum power and economy. The MH3027 configuration is rated at 173 horsepower (129 kW).
The intelligent, load-sensing hydraulic system delivers power when needed and reduces fuel burn. The machine is manufactured with high-strength structural steel and advanced welding techniques. Service features include an auto lube for the upper area of the machine and centralized manual lube for the lower.
Using a closed-center, one-pump, load-sensing implement hydraulic system with electro-hydraulic pilot control, the hydraulic pump generates only as much oil flow and pressure as required for the application. The machine regenerates boom-down oil flow, reducing the volume of oil the pump must produce.
Four-wheel mechanical drive is designed for optimal maneuvering performance. A variable displacement hydraulic motor coupled with a two-speed transmission provides high- and low-speed travel with creeper speed capability designed for optimal control.
An oscillating rear axle provides smooth travel over rough terrain. The rear axle is equipped with an oscillation lock that provides greater stability during light duty material handling without stabilizers deployed.
Fiberglass gull-wing panels supported by gas-filled cylinders provide ready access to the routine maintenance points in large, lighted compartments. Service panels are located on the top, left, and right side of the machine. Handrails and anti-slip surfaces are additional features.
The MH3027 accommodates Cat Connect LINK and DETECT technologies. Product Link helps fleet owners track locations, hours, fuel consumption, idle time, events and diagnostic codes by wirelessly reporting all via the online VisionLink user interface to help lower owning and operating costs.
The MH3027 is designed to handle a variety of work tools. The machine features medium-pressure flow from a separate valve for tool rotation and a high-pressure circuit from the main pump to operate the open/close functions of typical tools, such as orange-peel grapples, clamshells, and log grapples.
A separate pump is used to provide hydraulic power to operate a generator for an optional scrap magnet. The generator features a Cat solid-state magnet controller that has a sorting feature to aid the operator.

For material handling, Caterpillar offers a full line of small, medium, and large excavators for use in waste applications, says Griffith. “We also have wheeled excavator offerings that are more mobile in landfill and transfer station/MRF applications,” he adds. “All of these machines can be fitted with waste guarding, debris screens, cab filtration systems, reversing fans, and other components either by Caterpillar or OEMs. Depending on the type of application and its needs, there are several undercarriages, and boom/stick offerings.”
Caterpillar offers tracked and wheeled excavators with multiple types of work tools, such as buckets, orange peel grapples, trash grapples, sorting grapples, construction grapples, and bucket thumbs.
In addition to that, Caterpillar also offers pedestal-mounted models that can either be diesel-driven or electric or hydraulic hybrid, says Griffith. “I foresee more of a need for these in the far future as everyone goes greener,” he adds.
Of note is the newly released Cat MH3027, the fourth and smallest in a new wheeled material handlers series Caterpillar is introducing to global markets in the greater than 25-metric-ton-size class.
At 62,832 pounds (28,500 kg), the MH3027 is designed to deliver optimal performance in a smaller package with a swing radius that is 8.3 inches (213 mm) less than the Cat MH3037. The MH3027 is available in configurations for waste handling, featuring a straight stick, and for scrap handling, featuring a drop nose stick. A debris-resistant cooling package with a hydraulic, variable speed, auto reversing fan and plug resistant coolers also is available.
The Cat cab avoidance system uses sensors on the front linkage to help ensure that the work tool will not contact the cab. The MH3027 model features two hydraulic cab riser options: a cab-to-platform configuration or a “ground level entry and exit” with a step-in cab that lowers to the front or the side of the machine to enhance convenience and safety for operators and service personnel.
The hydraulic cab riser takes the operator to 18 feet for optimal jobsite visibility. Additionally, the cab features joystick steering control and opens the front view for the operator. A standard rearview camera also expands sight lines with optional side view camera.
The MH3027 is powered by a Cat C7.1 ACERT engine that meets US EPA Tier 4 Final/EU Stage IV emissions standards. Emissions control system operation is transparent to the operator with no downtime for particulate filter regeneration.
The engine features an electronically controlled, mechanically actuated, unit-injector fuel system using multiple-injection fuel delivery for optimum power and economy. The MH3027 configuration is rated at 173 horsepower (129 kW).
The intelligent, load-sensing hydraulic system delivers power when needed and reduces fuel burn. The machine is manufactured with high-strength structural steel and advanced welding techniques. Service features include an auto lube for the upper area of the machine and centralized manual lube for the lower.
Using a closed-center, one-pump, load-sensing implement hydraulic system with electro-hydraulic pilot control, the hydraulic pump generates only as much oil flow and pressure as required for the application. The machine regenerates boom-down oil flow, reducing the volume of oil the pump must produce.
Four-wheel mechanical drive is designed for optimal maneuvering performance. A variable displacement hydraulic motor coupled with a two-speed transmission provides high- and low-speed travel with creeper speed capability designed for optimal control.
An oscillating rear axle provides smooth travel over rough terrain. The rear axle is equipped with an oscillation lock that provides greater stability during light duty material handling without stabilizers deployed.
Fiberglass gull-wing panels supported by gas-filled cylinders provide ready access to the routine maintenance points in large, lighted compartments. Service panels are located on the top, left, and right side of the machine. Handrails and anti-slip surfaces are additional features.
The MH3027 accommodates Cat Connect LINK and DETECT technologies. Product Link helps fleet owners track locations, hours, fuel consumption, idle time, events and diagnostic codes by wirelessly reporting all via the online VisionLink user interface to help lower owning and operating costs.
The MH3027 is designed to handle a variety of work tools. The machine features medium-pressure flow from a separate valve for tool rotation and a high-pressure circuit from the main pump to operate the open/close functions of typical tools, such as orange-peel grapples, clamshells, and log grapples.
A separate pump is used to provide hydraulic power to operate a generator for an optional scrap magnet. The generator features a Cat solid-state magnet controller that has a sorting feature to aid the operator. 