The heavy machines construction industry is a complex and multifaceted sector that requires a vast array of equipment and machinery to get the job done.
Heavy machines are used in a wide range of construction projects, from building roads and bridges to excavating foundations and laying pipes.
The industry is heavily reliant on heavy machinery, with over 90% of construction projects using some form of heavy equipment.
Heavy machines are responsible for completing tasks that would be impossible or extremely difficult for humans to do on their own.
Earthmoving Equipment
Earthmoving equipment is the backbone of any major construction project. It's used to clear, grade, and prepare the land for building.
The first step in any construction project is earthmoving. This process involves using specialized equipment to shape and stabilize the terrain to spec.
Earthmoving equipment includes machines like loaders and graders. These powerful tools are essential for creating a stable foundation for construction.
Some of the core earthmoving equipment includes:
Excavators are also a crucial part of earthmoving equipment. They have plenty of moving parts, including a boom, dipper, bucket, and cab, and are used for digging foundations and trenches.
Construction Vehicles
Construction vehicles are the backbone of any construction project, and they come in all shapes and sizes. Each type of vehicle is designed to perform a specific task, such as moving materials, excavating soil, or transporting heavy loads.
A bulldozer, for example, is a powerful machine used to push and move materials around a construction site. Its wide, flat blade is perfect for rough or fine grading, and its considerable weight helps it crush large boulders.
Dump trucks, on the other hand, are designed for transporting loose materials like soil, gravel, and sand. They come in various sizes and configurations, making them adaptable to both small urban construction and large infrastructure projects.
Articulated haulers are another type of vehicle that's perfect for challenging worksites with poor pavements or roads. They feature a narrow trailer and dump box connecting the driver cab through a pivoting hinge, making them easy to maneuver in tight spaces.
Here are some common types of construction vehicles:
- Bulldozers
- Dump trucks
- Articulated haulers
- Scrapers
- Concrete mixing trucks
These vehicles are essential for any construction project, and understanding their different types and capabilities can help you make informed decisions about which ones to use.
Backhoes
Backhoes are a common sight on construction projects, and for good reason. They have two arms, one on the front and one on the back, with the front arm typically featuring an excavator-like tool or a bucket digger.
The front part of a backhoe is often referred to as the boom, while the back side is known as the dipper-stick or dipper. The boom can be connected to any heavy vehicle, but when it's mounted on a front loader, it's called a backhoe loader.
A backhoe loader is essentially a tractor-like unit with a loader-style shovel on the front and a backhoe on the back. This makes them incredibly versatile machines. Here are some of the nicknames for backhoes:
- Backhoe Loader
- Backhoe Digger
- TLB (Tractor Loader Backhoe)
- Hoe
- Digger
- Back Actor (UK)
- JCB (in some regions)
- Banana Boom
- Stick
Backhoes are also known for their ability to move dirt, backfill excavations, dig holes and trenches, and place pipes and other materials. They're wheel-driven, which makes them ideal for urban areas and allows them to be driven to a job site. The bucket in the back can even be changed to dig trenches of different widths.
Bulldozers
Bulldozers are heavy-duty and powerful tracked equipment with top-notch ground-holding capacity and stability. They have wide tracks that help distribute their heavy weight, preventing them from sinking in sandy or muddy surfaces.
Their Low Ground Pressure (LGP) tracks provide mobility in tough terrains, and the wide blades help push rocks, sand, snow, debris, and building materials. Bulldozers have different blades depending on the job, from universal to straight blades and semi-universal combination blades.
Bulldozers are considered one of the strongest and most reliable heavy equipment used in the construction industry. They are powerful and extremely heavy machines used to move dirt along large open tracts of land.
A bulldozer's considerable weight helps it crush large boulders, among other operations. They are typically used to push piles of earth and for rough or fine grading, depending on the size of the bulldozer.
Their most distinctive feature is the steel blade or plate mounted at the front, which is lifted or pushed down during operations. Bulldozers, or dozers, typically move on heavy metal tracks designed to maneuver through rough terrain.
Some models come with four-wheel drive instead, allowing them to move around concrete roads, but those are less suitable for rugged areas. The most common purpose of this type of machinery is to push and move material around the construction site.
Besides maneuvering soil or construction debris, interchangeable blades also allow contractors to clear waste or vegetation before digging a foundation for the building. Bulldozers are also often paired with other heavy construction site equipment.
Here are some common nicknames for bulldozers:
- Dozer
- Bull Dozer
- Blade
- Earth Mover
- Crawler Tractor
- Cat (informal term referring to Caterpillar equipment)
- Bull
- Push Cat
Scrapers
Scrapers are heavy equipment used to transport loose-earth materials, perfect for ground leveling or grading. They typically consist of a vehicle with a driver's cabin and a scraping machine in the rear.
The scraping machine uses a blade to cut through the soil, which is then collected through a conveyor belt system and stored in the hopper. Once the hopper is full, the tractor scraper can move the dirt and offload it to a different location.
Scrapers are designed for open areas where they can run at high speeds for cut and fill operations. They're ideal for digging and leveling large areas of land.
There are different configurations of wheel tractor scrapers, including open bowl, tandem scrapers, and pull-type scrapers. Each type has its own unique features, such as the need for a pushcart or bulldozer to help with loading dirt.
Here are some common types of scrapers:
- Open bowl: needs a pushcart or bulldozer to help in loading dirt.
- Tandem scrapers: has a separate scraper and tractor engines, allowing them to move through slippery surfaces or steep areas.
- Pull-type scraper: utilizes a farm tractor or a bulldozer to pull, and can be used individually or connected in two or three for maximum load.
Some regions prefer other types of heavy equipment, like bulldozers, loaders, and graders, due to the abrasive nature of the local terrain.
Off-Highway Trucks
Off-Highway Trucks are huge trucks designed to work in unfinished environments in mining and dirt-hauling jobs. They're commonly known as haul trucks as they're strictly off-road machines.
Off-highway trucks are used in challenging worksites with poor pavements or roads where a dump truck would fit. They're a type of dumper with an off-road, all-wheel-drive capacity with a distinct power unit.
A unique perspective: Must Haves for Heavy off Road Trucks
Some off-highway trucks have an articulated design, consisting of a narrow trailer and dump box connecting the driver cab through a pivoting hinge. This design provides a low center of gravity, adaptable to rough or slippery terrain.
In areas where a dump truck cannot maneuver, articulated haulers come in handy. They're used in challenging worksites with poor pavements or roads where a dump truck would fit.
Here are some common nicknames for off-highway trucks:
- Haul Truck
- Mining Truck
- Rigid Dump Truck
- Rock Truck
- Heavy Hauler
- Monster Truck
- Yuke
Off-highway trucks are huge, and their size and weight make them perfect for heavy-duty tasks like mining and dirt-hauling jobs.
Forklifts
Forklifts are essential in warehouses, construction sites, and commercial storage facilities.
They use hydraulic cylinders and roller chain pulleys to lift heavy material upwards, and then the vehicle moves it to another location.
Forklifts are used in commercial sites when moving material in rough terrains over long distances.
However, they are more common in shipping warehouses for loading and unloading trucks with goods.
Check this out: Machines at Construction Sites
You'll also find forklifts in dockyards, recycling plants, and even snow plows.
Contractors use forklifts to transport heavy materials across the site in a safe and fast manner.
They're vital supporting vehicles on construction sites.
Forklifts are ideal for handling interior construction materials like wood, tiles, and bricks that arrive in pallets.
Rough-terrain forklifts are equipped with pneumatic tires that enable superior traction in off-road conditions.
This allows the vehicle to move over rocks and maintain stability while carrying the load.
Load capacities of rough-terrain forklifts range from one to 20 tons, depending on the specific model.
Reach Stackers
Reach stackers are specialized machines designed for precision and efficiency in moving and stacking containers. They're commonly used in ports and intermodal terminals where space optimization is crucial.
These machines have an extendable boom that allows operators to handle containers at varying heights and depths. This flexibility enables them to stack containers in high rows, maximizing yard space.
Reach stackers can effectively organize containers in confined areas without compromising access or maneuverability.
Mixing Trucks
Mixing trucks are a crucial part of any construction site, and they're easily recognizable by their cylindrical, revolving bodies that keep the concrete consistently mixed during transit.
These trucks are designed to transport and maintain ready-mix concrete, and they work in tandem with pump trucks to streamline the process and reduce the risk of the concrete setting prematurely.
The cylindrical body of a mixing truck is typically located at the lower end of the truck, where a hatch is used to extract the concrete upon arrival at the construction site.
Mixing trucks can be equipped with a reservoir that allows them to pour concrete directly into the pump truck, which then conveys it to the specific location where it is needed.
Some mixing trucks are set up on construction sites, while others are attached to trailers for transportation to cater to clients who need preset concrete in large construction projects.
You may have seen mixing trucks referred to by different names, including Cement Mixer, Mixer Truck, Barrel Mixer, Agitator Truck, Ready-Mix Truck, Spinny, or Concrete Buggy.
Here are some common nicknames for mixing trucks:
- Cement Mixer
- Mixer Truck
- Barrel Mixer
- Agitator Truck
- Ready-Mix Truck
- Spinny
- Concrete Buggy
Heavy Machinery for Mining
Heavy machinery plays a crucial role in mining, and some of the most impressive machines are used in this industry. Dragline excavators are a type of heavy machinery used in mining and construction activities.
They have a long boom connected to a bucket with metal ropes and hinges, allowing them to move heavy debris across a deep surface. This makes them perfect for deep surface mining, port construction, and underwater excavations.
Dragline excavators are one of the heaviest types of equipment in construction, with most models weighing over 8,000 tons. They are often assembled at the construction site rather than transported due to their massive size.
Some smaller dragline excavators exist, but they still weigh up to 8,000 tons and are used in applications such as canal dredging, pond construction, and road construction.
If you're looking for a more versatile option, electric rope shovels are a great choice. They have few moving parts and can handle heavy, rugged materials such as ore and overburden.
Electric rope shovels are also easy to operate and maintain, making them a great option for mining projects. They can even replace the work of a dragline at a smaller scale by moving materials from one place to another.
Here are some nicknames for dragline excavators:
- Dragline
- Drag
- Walking Dragline
- Big Muskie (after a famous machine)
Heavy Machinery for Forestry
Heavy machinery plays a vital role in forestry operations, and the right equipment can make all the difference in maximizing yield and minimizing downtime. Feller bunchers are tree-cutting heavy equipment used to remove large trees on a construction site.
A feller buncher uses a sturdy boom and a grabber to rapidly gather and cut a tree before felling it, and can transport the trees to one place at a go. The machine cuts the trees without felling and assembles them in one location.
Feller bunchers are often paired with forwarders, which are used to transport felled logs to the loading sites. Forwarders have a decent loading capacity, ranging from 1 ton to 25 tons, and come in various models with features like rotating cabs and automated boom control functions.
Skidders are another type of heavy equipment used in forestry, which cut trees and pull them out of the forest. They come in two main types: grapple skidders and cable skidders, each with its own advantages and operating requirements.
Feller Bunchers
Feller Bunchers are tree-cutting heavy equipment used to remove large trees on a construction site. They use a sturdy boom and a grabber to rapidly gather and cut a tree before felling it.
A feller buncher's tree-grabbing device is equipped with a chain saw designed to cut trees once it grabs them. This device can transport the trees to one place at a go.
The feller buncher can cut trees without felling and assemble them in one location. This is mainly done by the tree-grabbing device equipped with the feller buncher.
A feller buncher's mechanisms allow it to rapidly gather and cut a tree, making it an efficient tool for logging operations.
Forwarders
Forwarders are essential in forestry and logging jobs, used to transport felled logs to loading sites.
They're designed for off-road terrains, with most models featuring a front dozer blade to clear pathways and stack up logs.
Some forwarders even have tracks instead of wheels for unbearable terrain.
Forwarders work closely with harvesters, helping move felled timber to a loading zone.
Their loading capacity is decent, ranging from 1 ton to 25 tons depending on the model.
Skidders
Skidders are heavy equipment used in forestry to cut trees and pull them out of the forest. They don't lift logs like forwarders do, but instead carry and drag them to the loading zone.
There are two main types of skidders: grapple skidders and cable skidders. The latter is attached to a series of cables that must wrap around the logs before moving.
Cable skidders are efficient in hilly areas and mountains, where the grapple would be prone to damage, and often require a second operator to help with wrapping.
Heavy Machinery for Farming
Farming demands robust machinery to tackle the entire growing cycle. Combines are a great example of this, streamlining harvesting by simultaneously cutting, threshing, and cleaning crops.
Tractors are the heartbeat of any farm, essential for powering a wide range of critical tasks. They're not just about moving dirt, but also about versatility, with different attachments unlocking a multitude of farming tasks.
A harvester or combine harvester is heavy industrial equipment used in modern farming. It helps in the large-scale harvesting of crops with three main functions: reaping, threshing, and cleaning.
Here are some key attachments used with tractors:
- Plows: Break and turn the soil.
- Cultivators: Aerate and prepare the seedbed.
- Seeders: Ensure precise planting.
- Balers: Compress and package hay or straw into manageable bales.
Tractors
Tractors are the backbone of any farm, allowing farmers to perform a wide range of tasks with ease. They're essential for modern farming to function.
Tractors aren't just about moving dirt, they're incredibly versatile. Different attachments unlock a multitude of farming tasks, making tractors indispensable.
From breaking and turning the soil with plows to aerating and preparing the seedbed with cultivators, tractors make farming operations efficient. They also ensure precise planting with seeders.
A baler attachment can compress and package hay or straw into manageable bales. This makes it easier for farmers to store and transport their crops.
Tractors are used in many industries beyond farming, including construction. Their versatility has earned them a multitude of nicknames, including Farm Tractor, Ag Tractor, and Prime Mover.
Some common tractor nicknames include:
- Farm Tractor
- Ag Tractor
- Tractor Unit
- Prime Mover
- Big Rig (for tractor-trailers)
- Mog (slang for Mercedes Unimog)
- Rig
- Puller
Combine/Harvesters
Combine/Harvesters are heavy industrial equipment used in modern farming to harvest crops quickly and efficiently. A harvester or combine harvester has three main functions: reaping, threshing, and cleaning.
The front header of a harvester consists of cutting blades that rotate in a motion similar to wheels. These cutting blades cut crops from the bottom and move them into the threshing drum through a conveyor belt.
Inside the threshing drum, grains are separated from the stem and straw. The grains are then further directed to the screen for further processing.
A combined harvester is purely made for farming and has specific features and functions beneficial to crop harvesting. It is critical equipment for modern farmers.
Specialized Construction Equipment
Specialized construction equipment is designed to tackle unique challenges that standard machinery can't handle. This specialized equipment is a game-changer for construction projects that require precision and durability.
Telehandlers, for example, are massive construction equipment that lifts bulk materials in tough terrains. They have a flexible boom and are mostly used in commercial and agriculture projects. Telehandlers can also be referred to as cherry pickers due to how they operate.
A knuckleboom loader is heavy equipment designed to carry logs, similar to a forwarder but much larger with tracks instead of wheels. It has a crane system to carry the logs and place them on trucks for transporting.
Here are some of the types of specialized construction equipment:
- Telehandlers
- Knuckleboom loaders
- Pile driving machines
- Cranes (tower, crawler, and mobile)
These machines are essential for construction projects that require heavy lifting and material handling. They are designed to work in challenging terrains and can lift heavy loads to great heights.
Pavers
Pavers are crucial for road construction, as they lay asphalt flat on the surface and provide minor ground compaction. They're essential for residential and road construction, making them a vital tool for contractors.
A paver's feeding bucket is continuously loaded with asphalt as it moves forward, and the paver screed at the front disperses the asphalt mass evenly. Modern pavers can increase the width of the screed to cover larger areas.
The screed is a vital component of the paver, attached by side arms to tow points near its central point. It's adjustable, allowing control over the asphalt's depth, width, and grade to meet various specifications.
Discover more: Names of Road Construction Machines
Pavers come in both wheeled and tracked chassis configurations, and they're specifically used for mixing asphalt aggregate and laying the asphalt mat on newly constructed roads. Different models of asphalt pavers come with varying standard screed widths.
Here are some common nicknames for pavers:
- Asphalt Paver
- Paving Machine
- Paver Finisher
- Road Paver
- Paving Buggy
Asphalt pavers emerged in the 1920s after successful tests from the Chicago testing Laboratory, which identified their role in constructing asphalt roads. The heavy feeding bucket distributes asphalt evenly on the surface, providing compaction as it rolls on top.
Telehandlers
Telehandlers are massive construction equipment that lifts bulk materials in tough terrains, making them a game-changer for commercial and agriculture projects.
They have a flexible boom that can extend upwards and forwards from the vehicle, allowing for a wide range of attachments such as pallet forks, buckers, winch, or muck grabs.
Folks in North America often refer to telehandlers as cherry pickers due to how they operate.
Telehandlers are great in agriculture when the bucket or bucket grab is attached to the boom, enabling the movement of heavy materials to places unreachable from traditional equipment.
Their versatility makes them valuable for tasks such as moving large quantities of materials quickly, clearing debris, or even assisting with structural assembly.
Telehandlers combine the capabilities of a crane and a forklift, making them helpful on many types of construction projects.
Their telescopic, articulating boom extends both forward and upward to over 50 feet, while their hydraulics support a load capacity of up to 12,000 pounds.
This makes them efficient, productive, and safe in handling challenging construction tasks.
Telehandlers can remove pallet boxes from a trailer and place them as high as a 2-story building rooftop, thanks to their long boom and pallet forks attachment.
Pile Driving Machines
Pile driving machines are heavy equipment designed for niche tasks, specifically for driving piles into the ground to create a solid foundation.
These machines are essential for construction projects that require a stable base for large structures, such as buildings, bridges, and other infrastructure.
Pile drivers work by driving piles, long heavy beams of wood, steel, or concrete, deep into the soil using a heavy weight or hammer.
They can penetrate well below the surface, transferring the structure's loads to the more stable soil or rock found below less stable upper layers.
Pile drivers come in different types and sizes, including hydraulic hammers, hydraulic press-ins, vertical travel lead systems, and piling rigs.
Here are the three sizes of pile drivers:
Pile drivers are used in areas where the surface soil can’t support heavy loads on its own, providing a stable base for construction projects.
They help create a deep and sturdy foundation, which prevents settling and ensures the stability and safety of structures for years to come.
Tower Cranes
Tower cranes are a vital component in construction, especially for heavy lifting and material handling. They're commonly seen in the later stages of building construction, anchored to the sides of buildings, assisting in lifting heavy materials as the structure rises.
A typical tower crane can lift up to 18 tons of weight thanks to its robust structure. They can reach a height of 265 ft, which enables contractors to cover the entire construction area.
Tower cranes have a simple lifting mechanism to lift heavy objects beyond the capability of a human being. The T shape uses a balance to offset any upward movement for lifting heavy materials.
To determine if a tower crane is suitable for a construction project, consider the scope of the construction site, the required weight capacity for materials, and the height of the planned structure.
Here are some key factors to consider when choosing a tower crane:
- Scope of the construction site
- Required weight capacity for materials
- Height of the planned structure
Tower cranes can move loads in a radius of 220 ft, which enables contractors to cover the entire construction area. This makes them indispensable for high-rise construction projects.
Power Generators
Power generators are a game-changer for construction projects in areas with unreliable grid power. They provide a reliable source of electricity, keeping the project running smoothly.
Crucial for providing electricity in areas where grid power is unavailable or unreliable, power generators are a must-have for keeping tools, machinery, and lighting operational.
They power tools, machinery, and lighting, making them essential for keeping the project running.
Sources
- John Deere 437D (deere.com)
- Earth-Moving Heavy Equipment for Construction (liveabout.com)
- similar to backhoes in some regards (bigrentz.com)
- loaders with tracks are standard (sarvertruevaluerental.com)
- Learn.org offers a detailed guide (learn.org)
- Must-Have Heavy Equipment for Construction (heavyequipmentcollege.edu)
- 16 Types of Heavy Equipment Used in Construction (theconstructor.org)
- 12 Common Types of Heavy Equipment in Construction (linkedin.com)
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