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When would a knuckle or articulated boom lift be required?

Jul. 02, 2024

The Boom Lift: Everything You Need To Know - DOZR

The Boom Lift: Everything You Need To Know

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One of the most common pieces of equipment on a construction site, boom lifts are a type of aerial lift that allows for both horizontal and vertical reach and are great for lifting workers. They are often used for both outdoor and indoor jobs like painting, window washing, roofing, and more. In this equipment deep dive, we'll talk about the different kinds of lifts, common sizes, manufacturers, and more.

The Basics

What do Boom Lifts Do?

Boom lifts are a type of articulated platform lift that makes reaching difficult places and heights easier than ever. A boom refers to the arm-like piece that connects from the platform to the grounded base. It is an extensible crane-like arm that uses hydraulics to extend and contract to achieve the desired height.

Providing a more secure workspace at high heights than other construction lift equipment, boom lifts are a safe way to get work done at heights up to 180 feet.

Types of Construction Lifts

There are a few different types of lifts used in construction including scissor lifts, articulating boom lifts, telescopic boom lifts, towable boom lifts, forklifts, and telehandlers. While scissor lifts are a type of man lift, they are not boom lifts. The same goes for forklifts and telehandlers as they are more often used for material handling and not as an aerial work platform. Only articulating boom lifts, telescopic boom lifts, and towable boom lifts will be the emphasis of this blog.

A rental yard of different types of boom lifts

The basic components of a boom lift are the base structure, the actual boom, and a bucket or working platform. The arm is controlled by a hydraulic lift system that allows it to extend both horizontally and vertically to carry people or materials to new heights.

The benefit of a boom lift vs a scissor lift is that boom lifts allow for a higher reach than scissor lifts but typically have a smaller work platform and a lower lifting capacity. This often means that most boom lifts can operate two people max while scissor lifts can hold up to four. Scissor lifts can also only lift vertically, limiting their versatility and movement around a construction site.

Common Boom Lift Sizes and Specs

What's great about boom lifts is their range in providing stable platforms across various heights. Depending on whether you get an articulating boom lift or a telescopic boom lift, also commonly called straight boom lifts, these machines can reach up to 180 feet.

Common sizes of articulating boom lifts are 30', 45', 60', 80', 120', and 150' while telescopic boom lifts typically come in 40', 60', 80', 120', 150', and 180' models. Towable boom lifts have models in the 36' and 50' range. The weight capacity for boom lifts typically ranges from 440 lbs to 1,000 lbs depending on the unrestricted or restricted platform capacity. Electric boom lift models are only available to a maximum lift height of 60' at this time.

Read our in-depth articulating boom lift spec guide.

There are rough terrain boom lift models available across much of the aerial lift equipment listed above, making them great options for different construction environments.

Common Uses of a Boom Lift

Whenever a project calls for work at elevated heights that require stability and different types of reach, contractors choose a boom lift. Their easy mobility and higher reach capability offer increased safety and can help make a job more efficient. Some common projects boom lifts can be used for include:

  • Erecting scaffolding

  • Electrical work

  • Tree cutting and trimming

  • Cleaning gutters and eavestroughs

  • Painting walls and ceilings

  • Fixing street lights or hanging signs

  • Roofing and sheathing

  • Fruit picking (which is why they can also be called cherry pickers)

Boom lift being used for painting

To choose the best lift for construction there are a few things you're going to need to consider including whether the job is indoor or outside, the lift size you need, the boom lift weight capacity, and how much up-and-over reach you'll need.

The first consideration is whether the site is indoors or outside because this is the easiest limiting factor to make. If the job is inside, you will need an electric model while you can use an electric or dual-fuel model outdoors.

The next consideration is the size of the lift. By knowing the height you need to reach, you know if you only need a small boom lift or one that reaches over 100'.

You'll also need to consider how much weight you need the machine to lift. Are you planning on having two people in the basket or one? What type of material are you looking to lift? These will factor into the specs you need the machine to have.

Lastly, consider the type of job you're on as this will help you decide between an articulating vs straight boom lift. While an articulating boom lift is great at maneuvering around obstacles because of its hinge and knuckle points, they have less reach and lower platform capacity than straight boom lifts.

Fortunately, there are many man lift sizes, platform heights, and boom capabilities that you're sure to find a model that suits your needs. Many lifts also have self-leveling capabilities so that operators can set them up and start using them in a short amount of time.

Other questions you should ask before renting a boom lift include:

  • What are the jobsite conditions?

  • What kind of power source capability do you have on-site?

The answer to these questions will help determine whether it should be a wheeled machine or one with all-terrain capabilities. It should also make the decision clear to choose between a scissor lift or a boom lift.

Current Manufacturers Of Boom Lifts

There are many articulating and telescopic lift manufacturers including JLG, Skyjack, Genie, Snorkel, and Mec.

Selling its first lift in the s, JLG has been on the leading edge of aerial lift innovation. Manufacturing both types of boom lifts, JLG has electric articulating boom lifts and telescopic boom lifts, as well as engine-powered ones. They have one of the most expansive product lines with models ranging from 30' to 185'.

JLG boom lift

Some of their most popular products include the 450AJ, 400 series, and 600 series of construction man lifts. Because of their versatility, you cannot go wrong with a JLG lift.

Founded in , Skyjack entered the lift industry with scissor lifts but has expanded to boom lifts as well. However, Skyjack focuses primarily on the small boom lift market as they manufacture lifts to a maximum height of 85'. Their most popular models include the SJ46 AJ and SJ 61 T. Skyjack denotes their models as articulating with their AJ models and telescopic with their T models.

Skyjack SJ30 ARJE boom lift

A brand under the Terex family, Genie was first founded in . With a product line as expansive as JLG, Genie is recognizable from its blue-colored machines across thousands of construction sites.

Genie S-80 boom lift

Their largest telescopic lift, the SX-180, can reach a height of 180 feet and has a 750 lb platform capacity while their latest articulating boom lift, the ZX-135, can reach 135 feet and has a 600 lb capacity. Genie also manufactures other lift equipment like telehandlers and scissor lifts.

Snorkel was founded by a man named Art Moore in . Snorkel lifts include 11 straight boom lift models, 7 articulating boom lift models, 4 electric models, and 3 towable models. As of , Snorkel produces the highest-reaching straight boom lift with a maximum reach of 210 feet! However, their articulating boom lifts have a much smaller range with a max height of 85'.

The last company to highlight is MEC. Founded in , they currently have 7 boom lift models being manufactured with 6 telescopic and one articulating. As such, their product range is limited with their articulating lift reaching 45' and the largest telescopic lift reaching 65'.

Read our in-depth telescopic and articulating boom lift brand comparison blog.

Potential Hazards & Safety Protocols

Falls are one of the fatal four accidents recognized by OSAH in construction. Working at heights should be taken seriously and a worker should never become too comfortable working off the ground. 

The boom machine itself poses potentially hazardous situations and, like with any kind of heavy equipment, should be handled with care. Never operate a boom lift if it is not safe to do so and always wear a safety harness. Fortunately, many models also now come with fall protection safety measurements, including fall arrest systems.

However, there are a few common hazards that are associated with boom lifts aside from falling: they are tipping, pinning, dropped objects, and electricity.

Dangers of Tipping a Boom Lift

As soon as a machine raises material or people into the air, the center of gravity is thrown off. This is where unrestricted vs restricted platform capacity factors in because the machine cannot lift maximum weight across its full range of motion. While boom lifts are stable machines made to lift materials and people, this does not mean that they are immune to tipping. 

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To avoid tipping a boom lift, always refer to the manual to see the range of motion the machine can lift a specific weight. It's also a good idea to survey the job site before beginning work and test to ensure the terrain is solid, especially after rain or a storm. Wheels can become stuck or sink, posing the threat of tipping the machine or knocking off the operator.

Never exceed the maximum weight and range of a boom lift and always use personal protective equipment (PPE). 

Dangers of Being Pinned or Crushed on a Boom Lift

At maximum height, there are new kinds of obstacles that may cause potential concern. For example, overhead beams, moving against walls and working under ceilings can create the chance of being pinched or pinned. 

To avoid pinching, always keep arms and legs inside the safety railings. Make sure to operate the bucket slowly around a job site and never work alone.

Dangers of Dropped Objects on a Boom Lift

When working at a height, it becomes your responsibility to keep those under you safe. As the bucket lifts, it's important to not drop anything. Dropping a hammer or even something as small as a nail can cause serious injury to those below a lift.

Man lift being used for roofing and sheathing

To avoid injuring those below you, always secure equipment and materials when working at heights. Use all the safety features and tools available and do not skip steps to save time.

Dangers of Working With Electricity

While one of the most common jobs for boom lift operators is working with electricity, working near wires can be dangerous. Electricity is silent and can be very deadly.

Learn more about the most common hazards on a construction site and how to prevent them.

Electricians are aware of the dangers but those not used to working close to electricity may overlook or not be fully aware of the dangers. Look at site plans ahead of time to analyze the location of electric wires. Always treat wires like they are live wires unless you've made sure to turn off the electricity in your working area.

More Ways to Stay Safe On A Lift

Other steps you can take to ensure the safe operation of a boom lift are:

  • Knowing where the lift emergency stop and lowering measure is and how to use it

  • Never operating a lift alone

  • Always wearing safety harnesses and other PPE

  • Securing all tools when working on a raised platform

  • Never working a boom lift with another worker standing under the platform

  • Use a boom lift only if the base is on even and stable ground or the stabilizer is being used

  • Survey the area up in the air where the operator will be working for exposed wires and other potential hazards

  • Having proper training

Other Boom Lift FAQs

Can a boom lift tip?

Boom lifts can tip just like any kind of heavy machine or vehicle. An operator should always take proper precautions and follow safety protocols to ensure that the machine remains stable and safe at all times. The best way to ensure they don't tip is to operate the machine within the suggested platform capacity and range of motion. This information will be found in the operator's manual.

What are most aerial lift accidents caused by?

Most lift accidents are caused by falling. To ensure you stay safe on a piece of lift equipment, always use the best safety measures including the fall arrest system, never extend too far over the railing, and harness yourself to the necessary areas.

What size boom lift do I need?

The size of lift you need will depend on the type of job you're doing and the maximum height you need to reach. Other factors include platform capacity, horizontal reach, number of obstructions, and the terrain of the construction site.

Can I rent a boom lift?

All kinds of boom lifts including telescopic boom lifts, articulating boom lifts, and towable boom lifts can be rented. Find your next boom lift rental and see local prices on DOZR by searching for equipment near you.

How long can I rent a boom lift for?

Boom lifts can be rented for daily, weekly, and monthly rentals depending on your needs.

Articulating vs. Straight Boom Lifts: How To Pick the Right ...

Articulating vs. Straight Boom Lifts: How To Pick the Right Boom Lift

Between the different categories of aerial lifts, it can be difficult to identify which one will best meet your performance expectations. That's why it's important to understand the similarities and differences between straight and articulating boom lifts, along with their respective applications.

How are straight (telescopic) and articulating boom lifts different?

Straight and articulating boom lifts both transport people and materials to elevated workspaces. Although they share the same general purpose, their distinct features provide different functionalities that are better suited to different tasks. It's also important to note that straight boom lifts are also known as telescopic boom lifts.

Below you'll find a breakdown of the main differences between articulating and straight booms and the implications of those differences.

Vertical and Horizontal Reach

Structurally, articulating and telescopic boom lift arms have their own unique movement pattern. An articulating boom lift has an arm with bendable joints or knuckles. This enables the machine to reach up, around, and over objects in its path by being able to change its angle of approach. The telescopic boom lift arm is straight, non-bending, and can only extend straight out or upwards.

The structure of each boom's arm really affects its reach capabilities. Generally, straight boom lifts have higher vertical reach than articulating models, which is measured by how high upward the arm can extend. Telescopic booms can reach up to 210', while their articulating counterparts can only reach up to 150'.

Straight booms can also extend further out horizontally. The extra horizontal reach achieved with an extendable boom allows the operator to approach objects from afar.

You may be wondering why anyone would opt for an articulating boom lift after hearing they have less horizontal and vertical reach. Although this is the case, articulated booms specialize in maneuverability. Articulated lifts can't reach as far out, but their bendable joints allow you to approach the work site from multiple angles and navigate tight spaces with ease.

Operating Conditions

As previously stated, articulated lifts can bend around beams and corners, while straight boom lifts can access higher elevations. So, the type of movement required on site is the main determinant as to which machine you choose.

Indoor and outdoor operation is another factor to consider. Both types of boom lifts can perform work on indoor and outdoor job sites but articulating boom lifts are more popular for indoor use since these environments have limited maneuvering space and contain more obstacles. Light fixtures, tight corners, and rafters are mostly encountered indoors, making articulating lifts a better option.

Because of this, it's more common to find electric articulating lifts as opposed to telescopic ones. However, more manufacturers are offering electric telescopic models fit for indoor use.

The final operating condition to consider is navigational space. Since a straight boom lift's arm is always extended, you need more space on-site to turn the machine. Articulating lifts are much more mobile, as the cabin can swivel and the arm can bend inwards to accommodate job sites with space restrictions.

Straight and Articulating Boom Lift Similarities

From a structural standpoint, straight and articulating boom lifts are relatively similar. They both contain a platform and machine base, which moves on wheels and includes the cabin. How the arm operates and the existence of a jib, a mini arm providing additional reach commonly found on articulating boom lifts, is the main structural difference.

In terms of operation, manufacturers produce rough terrain articulating and straight boom lifts. Both types are rugged machines that are suitable for tough work on uneven outdoor surfaces. Offering both boom lift types as rough terrain models ensures that you get the kind of mobility you need in the equipment you choose.

When to Use an Articulating Boom Lift

If your job site requires any of the articulating boom lift features listed above, then it's best to choose that model. The following job site circumstances are best suited to an articulated lift.

  • Crowded job sites
  • Confined spaces with a restricted movement capacity
  • Buildings with complex fixtures that require navigation and flexible movement
  • When close proximity to the work surface is required
  • When the work surface needs to be approached from different angles
  • When you need to move up and over obstacles to reach the work surface
  • The required vertical height is less than or equal to 150'

Due to their extensive range of motion and flexibility, articulating boom lifts work well when painting high ceilings and intricate spaces, maneuvering around power lines and trees to fix street lights, picking fruit, installing light fixtures in tough spots, and cleaning out eavestroughs.

When to Use a Straight Boom Lift

For jobs that require extensive reach, straight boom lifts are the way to go. The following job site circumstances are best suited to a telescopic boom.

  • Open-space job sites
  • Simplistic, accessible work surfaces with no obstacles in the boom's path
  • Requires significant horizontal and vertical reach (high-rise buildings)
  • Requires stability at high elevations
  • Requires greater lift capacity
  • Requires greater distance from the work surface
  • Only need to access the work surface from one primary angle
  • The required vertical height is between 150 and 210 feet

Because of their dependable stability, telescoping booms keep people safe while working at elevated workstations. They're typically used for scaffolding, repairs, painting, and electric work, among other jobs.

Need to Rent a Boom Lift?

The easiest way to summarize the main difference between both boom lifts is as follows: straight boom lifts are the best man lifts for jobs that require high-reach access or long reach whereas articulated lifts are best when a job site has many spatial limitations and requires hard-to-reach access.

For your next elevated workspace project, you can rent an articulating or straight boom lift with DOZR Marketplace!

For more Articulated Boom Lift For Saleinformation, please contact us. We will provide professional answers.

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