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I often hear excavators called the “Swiss Army knife” of the construction industry, and it’s true — they’re multi-tasking machines capable on practically any jobsite. A lot of people attribute their flexibility to a broad range of class sizes with multiple attachment options, but you may not realize that a big part of what makes these machines so versatile isn’t what’s on the end of the excavator arm — it’s the boom.
If you’re new to excavators, or if you use product brochures to spec machines, these excavator boom tips may be beneficial the next time you’re in the market for a machine for a specific application.
Mono Boom (Standard Boom): This is what we call the standard setup — it provides good reach and a decent bucket size range and is the most popular setup by far. Some customers use a mass excavation setup, which is a shorter boom and short stick. They go this route because they can put a bigger bucket on it. Using our 42-ton Volvo 380E excavator as an example, you have the choice of a 20′ 4″ (6.2 m) mass excavation boom with an 8′ 4″ stick, which allows you to put on that bigger bucket and move more material. Plus, it’s faster because you don’t have as far to swing. It’s one of the most productive setups, but you can be limited by reach.
Two-Piece Boom: Two-piece excavator booms are very versatile and can actually outlift a mono boom up close to the machine. The mono boom, however, gives you more reach and outlifts a two-piece boom at full extension. Two-piece booms allow you to change the bend of the excavator boom to decrease its working height, which is ideal for digging under a bridge or in a building, for example. The price difference between a mono boom and two-piece boom isn’t very significant, which gives you options to get the configuration you need to best suit the work at hand.
Long-Reach Boom: Long-reach excavator booms are great for cleaning out ponds and canals — jobs where you’re digging out in water and need the extra reach. Boom length varies based on manufacturer and machine model. For example, the long-reach version of the Volvo EC380 excavator is 27′ 11″ (8.5 m) compared to the 21′ 2″ (6.45 m) standard boom and 16′ 5″ (5 m) arm that provide a max reach of 48′ 5″ (14.75 m).
Two-Piece Offset Boom: The two-piece offset excavator boom is another option on some models. A two-piece offset boom knuckles off to the right or the left. If, for example, you’re working in a tight alley with limited swing, you can knuckle the boom over so that it digs in line with one of the tracks up next to a structure. Note on large machines it will decrease your lifting capacity because you have a knuckle and the cylinders out on the boom, so you’re increasing the weight that’s out in front of the machine. Two-piece offset booms are more expensive and can require additional maintenance. This excavator boom configuration is popular in cities with extremely tight workspaces.
In general, a large percentage of customers go with a two-piece boom on wheeled excavators and a standard mono boom on crawler excavators.
A Note on Wheeled Excavators
Wheeled excavators are becoming more and more popular in the U.S. because contractors are learning that they dig just like a crawler excavator but are more versatile. Just pull the outriggers up and drive across the neighborhood or down the street. Or use them for lifters, barriers on the highway, etc. and you won’t tear up the ground. When you’re ready for a different job, just fold up the outriggers, drive to your next jobsite and get to work again.
With outriggers, wheeled machines are just as stable as comparable crawlers — and in some instances, wheeled excavators actually have a wider footprint than a crawler and are more stable. In muddy or rough conditions, crawler excavators are better for the job — but if you’ve never considered a wheeled excavator for your type of work, check them out.
A Unique Value, Only from Volvo
Where Volvo differentiates itself from competitors is in our lifetime frame and structure warranty on all our excavator booms, arms and frames. We’re the only manufacturer that offers this guarantee. When you buy from Volvo, you don’t have to worry about breaking them — they’re guaranteed for life.
View our full excavator lineup to start comparing which machine and boom configuration is right for your job.
And if you’re ready to buy, Volvo dealers across North America have a range of medium and large excavators in stock and ready for your next job. Buy now and take advantage of our special financing with rates as low as 0% for 36 months.
By John Waldron
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For more information, please visit long reach excavator boom for sale.
Al Marwan Heavy Machinery
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Nov 7, 2024
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A conventional excavator can only do so much on a construction or mining job. A long reach digger, however, is a game-changer when it’s time to tackle those tough-to-reach places. Let’s dig into what makes these machines unique, when and where they’re used, and why they’re the go-to machines on projects near seashores, riverbanks, open-pit mines, and beyond.
A long reach digger, sometimes called a long reach excavator or long boom excavator, is a specialized piece of equipment designed to handle tasks in hard-to-reach areas. Unlike a conventional excavator, it’s all about the boom. The boom is the long arm that extends your reach, and it’s precisely what makes a long reach digger special.
Imagine a conventional 8-meter boom excavator weighing 50 tons. If you need to double its boom reach to 16 meters, extra counterweight is added at the rear to keep the machine stable. This careful balance is crucial, preventing the digger from tipping over when it’s reaching out into uncharted territory.
The beauty of the long reach digger lies in its ability to access places conventional excavators can only dream of. Here are some applications where these machines truly shine:
Ever needed to tear down a tall structure without damaging nearby buildings? Long reach diggers are your go-to. They can reach high and take down structures piece by piece, keeping the surroundings safe.
When conducting projects close to a body of water, you can’t just plop an excavator down on the shore. A long reach digger reaches out over the water to remove silt, debris, and keep the waterways flowing smoothly. This has been the case when the Al Majaz Island in Sharjah was constructed.
In quarries and mines, materials often lie deep within the earth. A long reach digger reaches down, extracts material, and ensures a safe working environment.
Building protective embankments or jetties near water bodies requires precision and reach. Long reach diggers finish these projects safely and more efficiently.
On steep slopes, you can’t have the digger too close to the edge. A long reach digger lets you work from a safe distance, ensuring the slope’s stability.
As an example of how long reach diggers are making a difference, we’ve gone the extra mile to modify conventional excavators, equipping them with long reach excavator booms. These specialized booms were crafted in-house at our workshop, using local resources and high-tensile Hardox and Strenx steel for durability.
The modified machines include models like KOBELCO SK500, and SK850, the Komatsu PC300, PC400, PC450, and PC850. These custom-made long reach diggers open up a world of possibilities, allowing for efficient, safe, and precise work in challenging locations.
Long reach diggers might not be as well-known as their standard counterparts, but they’re quietly revolutionizing how we tackle projects in challenging locations. Whether it’s demolition, dredging, quarrying, or building embankments, these machines extend our reach and make difficult tasks more manageable.
So, the next time you’re faced with a project near the seashore, riverbanks, or open-pit mines, remember that a long reach digger could be your solution. With tens of long reach excavators available regularly for rental and sale, we’ve got you covered with specialized machinery solutions fit for your unique site requirements. Discover our full range of long boom excavators here.
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