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Rockwheel D20 trenching in West Virginia sandstone and blue rock...a microcosm on the paradigm shift in rock excavation

Posted by Chip Kogelmann

Apr 13, 2017 6:40:13 AM

With winter finally coming to a close the construction season in the Mid-Atlantic region is picking up steam.  With this seasonal uptick we at Alpine Rockwheel are getting more and more calls as excavation contractors and engineers recognize the benefit of Rockwheels as an alternative to hydraulic hammers in many rock removal applications. Excavator mounted rock grinding attachments (Rockwheels) have reached a tipping point where it has become clear that something has been missing from the toolbox for economical removal of rock.

Here it is in a nutshell:  Ground strength varies along a continuum starting from soft ground that can be excavated with buckets (with or without ripper teeth) to extremely hard rock that requires heavy hammers or drill-and-blast.  Between these two extremes is a wide range of rock strength from approx. 1200 to 15,000-psi where excavator mounted rock cutting attachments are the most effective tool.  They are more efficient because:

  • Continuos grinding:  Less time re-positioning the tool compared to hammers
  • Higher production:  3-5x the producting of hammers in suitable rock (especially in layered rock!)
  • Precision:  eliminate overbreak and dont excavate more than you have to
  • Reusable cuttings:  ground rock can be recyled onsite as backfill or more easily transported

Capture-4.jpg

Case in point is a recent rock trenching job in West Virginia.  The contractor had to trench through 3-ft of sandstone underlain by  3 1/2 ft  of blue rock (limestone).  In addition, they were crossing some existing utilites that could not be disturbed.   Knowing the limitations of hydraulic hammers in terms of ability to cut smooth trench walls and flat bottoms he decided to use a D20 Rockwheel hydraulic rotary rock grinding attachment.  Installed on a 20-ton excavator the Rockwheel exceeded expectations in terms of productivity and finished product.  In the photo below you can see the rock layers, smooth exact side walls, and a crossing utility line that was undisturbed.  

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Could a hammer have done this job?  Sure, but it would have been much less efficient and cost effective.   Hammers will always have a place in the the excavation of rock but the current paradigm shift is raising awareness that there is a better option for a wide range of rock types.  It's all about the right tool for the job and having a toolbox equipped with a range of options.

Alpine maintains a national rental fleet so you can try this equipment for yourself without a purchase commitment. Excavator dealers and rental houses can utilize our rental fleet to offer their excavators equipped with Rockwheel rock cutting attachments.    From our long history in the mining and underground contruction markets we are excited to bring rock grinding technology to your excavator!  Contact us to let us know how we can help.  Tel.  814-466-7134  email.  chip@alpinecutters.com  www.alpinecutters.com 

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Topics: Cutter Heads, Rockwheel, Trenching, Excavation

How Deep into Rock Will a RockWheel Cut?

Posted by Ryan Leech

Apr 14, 2015 10:30:00 AM

deep_cutterheadWhen you are placing a bid on an excavation project there are an abundance of factors that you are taking into consideration.

There are concerns about the geographical location of the project site and the conditions you will potentially face and what equipment and manpower will be necessary to complete the task to the customer’s highest level of satisfaction.

One piece of equipment that is extremely useful in a variety of excavation applications is a cutterhead.

Like most tools, cutterheads come in a variety of options, including specialized custom cutterheads available for particularly challenging or unique situations.

Cutterheads offer numerous advantages over simpler excavating products such as hydraulic hammers.

The enhanced functionality of a cutterhead will give you more precise control over the quality and structure of your Rockwheel_foundationexcavationexcavation projects.

In addition to better overall performance, cutterheads also have the ability to lower costs and improve the efficiency of your project as well.

How deep will a cutterhead cut?

Today we’re going to look specifically at one aspect of cutterhead performance that is important to excavation projects, namely, how deep will a cutterhead cut?

The short answer is that cutterheads theoretically have the ability to operate at any depth, but they are dependent on the excavator or carrier machine they are attached to for reach and depth.

The power and rate at which a cutterhead operates should be constant, so the biggest restriction to a cutterhead’s ability to cut is how far the carrier machine can physically put the cutterhead into the ground.

This means the machine type will obviously have an impact on how the cutterhead performs. Knowing what excavator or carrier machine you have will affect the scope of your project.

Know beforehand what type of excavator or carrier machine you will be attaching your cutterhead to and you’ll be able to determine how deep your cutterhead will be equipped to cut.

Different machines have different capabilities, and even factors such as the machine’s weight and dimensions will change the way a cutterhead performs.

If you have any specific questions about an attachment or need help installing a cutterhead, feel free to contact one of our team members here at Alpine.

There are a few other factors that will directly impact the depth at which a cutterhead will perform.

These include the specific type of cutterhead you select as well as the surrounding conditions of the project site.

The soil type and the surrounding landscape such as the presence of fault lines, utility lines, and any other obstacles will have a direct correlation to how deep the cutterhead can safely excavate.

Cutterheads have the capability to operate at any depth you need to get the job done, and most scenarios will need to be evaluated on a case by case basis.

Find out everything you need to know about rock grinding with a cutterhead

 

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Topics: Cutter Heads, Trenching, Excavation

How to Boost Rock Trenching Precision and Efficiency with a Transverse Cutter Head

Posted by Chip Kogelmann

Dec 4, 2014 10:30:00 AM

boost-rock-trenching-efficiencyTrenching and rock excavation projects are always tall tasks. The inherent uncertainty and variability of rock strength (measured in psi or MPa) and quality (degree and spacing of fractures) makes bidding these projects a challenge and predicting production rates even more so.

These projects involve a substantial amount of preparation and diligent attention until completion. Project managers have to constantly monitor progress because each situation is different and provides its own unique set of challenges.

In addition to making sure the project is completed as efficiently as possible, project managers are also worried about the inherent dangers that accompany trenching.

If you’re looking to improve your process for digging precise trenches for utility lines, here are a couple reasons Alpine’s cutterheads and RockWheels can provide a more precise and efficient solution.

Cutterheads Increase EfficiencyAlpine_trenching_hiprod

Alpine cutterheads have higher production rates than hammers in most applications. In general, hammers afford operators less control which can create unstable trench walls and unintended overbreak resulting in more costly excavation. This excess material often needs to be transported off site to be crushed even further, not to mention needing more backfill for the overbreak, which is a costly practice that quickly adds extra expenses to your project.

Transverse cutter heads equip you with superior control creating narrower, safer trench walls. Cutter heads can also eliminate up to 50% of excavation volume by cutting only the needed trench width, where a hammer needs a "V" shaped opening (see diagram). Cutterheads have the ability to grind crush rock to a consistent enough size that it is able to be used as fill matter on site. This creates an increased level of efficiency that can pay huge dividends for your trenching project.    

Transverse Cutter Heads Have Unmatched Precision

Transverse cutter heads provide you with surgical precision maximizing your control of the project. If you’re digging a utility line, a transverse cutter head will allow you to safely work around any existing utilities. This precision cut is controlled enough to leave the surrounding rock mass intact, unlike the shock force of a hydraulic hammer which can cause force fractures in the surrounding rock.

One great aspect of cutterheads is that precision does not come at the expense of power. Cutterheads are fully capable of cutting through several layers of hard surfaces including rock, pavement, and concrete. The additional precision helps your company limit expensive backfill and surface patching costs. The ability to provide sufficient power while greatly increasing precision makes transverse cutterheads a great solution for your trenching needs.

Here is a video of the Alpine TC-E transverse cutter head in action digging a precise trench in Las Vegas, Nevada.

 

 

As you can see, transverse cutter heads are extremely efficient and can help you dig your desired trench exactly the way you want while crushing rock, concrete, and pavement to a size that allows it to be used as fill matter. Transverse cutter heads also provide an unrivaled level of precision in their cuts that can gently grind to a matter of inches instead of crushing with brute force like a hydraulic hammer.

Thanks to these benefits cutter heads provide a compelling alternative to hydraulic hammers. When in the process of digging a precise trench for a utility line, a transverse cutter head could prove to be just the tool you need to make your project successful.

download-rock-and-concrete-grinding-brochure

 

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Topics: Cutter Heads, Trenching

How a rock grinder can boost efficiency and reduce cost.

Posted by Ryan Leech

Nov 13, 2014 9:30:00 AM

cutter-head-trenchingEach construction project provides a unique set of circumstances and challenges that calls for creative solutions to meet your goals and deliver on your objectives. The most successful projects are the ones that strike the delicate balance of finding solutions that lower cost without making concessions on quality. For excavation projects that confront you with the toughest rock and concrete structures, rock grinders can be a useful tool to help reduce your cost while increasing efficiency.

Rock grinders, which can also be referred to as cutter heads, are a precise and efficient way to grind and crush rock. They attach cleanly onto the end of existing excavators and operate by employing the hydraulic lines of the machine to which it is attached.

When configured correctly, the cutter head makes quick work of grinding and crushing rock. Rock grinders offer incredible precision. Designed to make powerful even cuts, rock grinders are also capable of cutting with a high degree of accuracy. This gives you greater control over your operation and allows you to cut until your exact specifications are met.

Rock grinders are the ultimate precision tool to allow you to work within precise dimensions without collateral destruction.

A great example of this is the TC-D cutter head with a cutting force of nearly 18,000 foot pounds. In one case it was employed for a water line trenching job in soft rock of Pittsburgh, Pennsylvania. The cutter head replaced a hoe-ram attachment that was simply poking holes in the rock, and wasn't making good progress. The TC-D exhibited excellent trenching efficiency and cut vertically into the desired width. 

In addition to effectively cutting rock and concrete, rock grinders are also efficient when it comes to cleaning up the debris. When using a rock grinder, rock rarely needs to be hauled off site to be crushed further. The grinder produces a much more consistent waste product than traditional methods like hydraulic hammers. Rock grinders are also exceptionally precise, meaning that one only grinds as much rock as he or she needs. The condensed waste translates directly into saving you both time and money.Rockwheel_foundationexcavation

The efficiency provided by rock grinders does not come at the price of power. Each individual rock grinder is composed of tough carbide teeth that are fitted on rotary drums. This fitting makes them extremely durable.

Rock grinders are exceptionally resistant to wearing out. Unlike some other applications, rock grinders can be counted on for more than one project before needing to be replaced. Being able to use a rock grinder for multiple projects that involve a variety of surfaces makes rock grinders a valuable investment. Alpine rock grinders provide an unparalleled combination of efficiency and durability.

If you are searching for a versatile tool that can increase the efficiency of rock or concrete removal in sensitive areas, then an Alpine rock grinder could be just what you need. Alpine offers a full line of rock grinders that are sure to be suited to your unique situation.

Grinders can be selected on the basis of size and horsepower to ensure that you receive the best option available.

Our dedicated team of experts is readily available to provide you with assistance every step of the way. Lower the cost and increase the efficiency of your next project by calling today.

download-rock-and-concrete-grinding-brochure

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Topics: Cutter Heads, Concrete Grinding, Trenching

How Deep Will a Cutterhead Cut?

Posted by Ryan Leech

Apr 8, 2014 7:00:00 AM

deep_cutterheadWhen you are placing a bid on an excavation project there are an abundance of factors that you are taking into consideration.

There are concerns about the geographical location of the project site and the conditions you will potentially face and what equipment and manpower will be necessary to complete the task to the customer’s highest level of satisfaction.

One piece of equipment that is extremely useful in a variety of excavation applications is a cutterhead.

Like most tools, cutterheads come in a variety of options, including specialized custom cutterheads available for particularly challenging or unique situations.

Cutterheads offer numerous advantages over simpler excavating products such as hydraulic hammers.

The enhanced functionality of a cutterhead will give you more precise control over the quality and structure of your Rockwheel_foundationexcavationexcavation projects.

In addition to better overall performance, cutterheads also have the ability to lower costs and improve the efficiency of your project as well.

How deep will a cutterhead cut?

Today we’re going to look specifically at one aspect of cutterhead performance that is important to excavation projects, namely, how deep will a cutterhead cut?

The short answer is that cutterheads theoretically have the ability to operate at any depth, but they are dependent on the excavator or carrier machine they are attached to for reach and depth.

The power and rate at which a cutterhead operates should be constant, so the biggest restriction to a cutterhead’s ability to cut is how far the carrier machine can physically put the cutterhead into the ground.

This means the machine type will obviously have an impact on how the cutterhead performs. Knowing what excavator or carrier machine you have will affect the scope of your project.

Know beforehand what type of excavator or carrier machine you will be attaching your cutterhead to and you’ll be able to determine how deep your cutterhead will be equipped to cut.

Different machines have different capabilities, and even factors such as the machine’s weight and dimensions will change the way a cutterhead performs.

If you have any specific questions about an attachment or need help installing a cutterhead, feel free to contact one of our team members here at Alpine.

There are a few other factors that will directly impact the depth at which a cutterhead will perform.

These include the specific type of cutterhead you select as well as the surrounding conditions of the project site.

The soil type and the surrounding landscape such as the presence of fault lines, utility lines, and any other obstacles will have a direct correlation to how deep the cutterhead can safely excavate.

Cutterheads have the capability to operate at any depth you need to get the job done, and most scenarios will need to be evaluated on a case by case basis.

Find out everything you need to know about rock grinding with a cutterhead

 

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Topics: Cutter Heads, Trenching, Excavation

Trenching Around Utilities in Urban Areas

Posted by Ryan Leech

Apr 3, 2014 7:00:00 AM

It is one thing to execute a trenching project in undeveloped rural areas where there are few obstacles and considerations to account for -- it is quite another to undertake a trenching project in an urban setting.

No trenching project is simple, but everything becomes a little more complicated in an urban setting.senstive_scaling_web

Since trenching is one of the most dangerous construction projects to perform, safety is always at the forefront of any trenching effort.

This is especially true in urban applications where there are more structures and obstacles such as existing pipes or utility lines that interfere with the job.

In addition to trenching near sensitive structures, there is also the population density issue and trying to complete the project in the most unobtrusive way possible.

The greater need for precision and control in urban areas make cutterheads a perfect solution for these trenching endeavors.

Cutterheads have many practical uses but are most commonly applied in trenching, tunneling, and scaling applications.

The alternative to using a cutterhead is to either use a hydraulic hammer or blast the area. These two options can be adequate solutions in certain scenarios, but are largely impractical in an urban context.

These methods are heavy on brute force, but lack the necessary finesse to effectively move around sensitive structures and utilities.

Hammers and blasting tend to create jagged v-shaped trenches that are more difficult to control and create less-stable walls.

Cutterheads on the other hand generate great force while maintaining the necessary delicacy and precision to create clean vertical trenches with superior stability.

By eliminating the v-shape and creating a vertical wall, cutterheads can produce a much narrower trench which leaves a smaller footprint.

A smaller footprint equates to increased safety as well as less fill needed to fill in whatever is being placed in the trench.

Some estimates see a reduction the amount of fill needed by as much as 50% when using a cutterhead.

The additional precision and control alone make cutterheads a significant upgrade over blasting and hydraulic hammers, but in addition to this, they also operate at a lower noise level, which is ideal in urban locations and sensitive areas.

Without sacrificing power, cutterheads are able to operate effectively and produce lower vibrations and shock waves.

The lower levels of shock waves and vibrations also contribute to the trench’s  overall level of safety and stability.utilitycutting

The benefits of a cutterhead make it the go-to choice for trenching projects near sensitive structures.

They produce less noise compared to hammers, have lower levels of vibrations, and lower levels of shock waves.

On top of reducing all environmental risk factors, they also provide an unparalleled level of precision and ability to cut below or adjacent to existing pipes and utilities.

Your next urban trenching project should make full use of the advantages a cutterhead can provide.

Find out everything you need to know about rock grinding with a cutterhead

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Topics: Cutter Heads, Trenching

Cutterhead: The One Tool to Get the Job Done Right

Posted by Chip Kogelmann

Mar 19, 2014 7:00:00 AM

Cutterheads are incredibly versatile and are well suited for several different applications.

Designed to handle a wide variety of projects, cutterheads can be used to excavate soil, rock, asphalt, and concrete. They can also cut virtually any kind of rock. Despite the ability to cut any type of rock, there are some situations where a cutterhead is impractical.

Production rates are lowest for projects that are dealing with igneous rock and highest for shales.

Here is a quick overview of three applications where cutterheads are a viable solution.

cutterhead-better-than-a-hammerTrenching

Cutterheads are great for trenching projects.

Consistent dimensions enable cutterheads to perform at an optimized speed matched with an ideal cutting size.

This optimization leads to a superior performance that creates smooth, vertical trenches every time. The consistency and precision of a cutterhead will provide you with improved control and better results in all of your trenching projects.

Cutterheads also enhance your ability to form flat bottomed trenches and improve your ability to control grade. Different units are available depending on your desired width, ensuring that you will be able to find the right cutterhead for the job.

Learning more about the best uses and applications of cutterheads can help you decide which option would work best for your situation.  

Excavating

Cutterheads deliver several capabilities that make them an ideal tool for excavating projects.

They are designed with a powerful low-speed, high torque cut that creates smooth verticals walls.

The smooth precision cuts provide a more stable foundation that is not prone to overbreaking issues.

An additional benefit is that the material excavated on-site is ground down into reusable backfill that eliminates the need for off-site transportation and processing.

These benefits make cutterheads the ideal tool for excavating projects and can provide your company with advantages over competing excavating equipment.  

Tunneling

3-advantages-tunneling-with-cutterheadCutterheads have a very successful history of quality completed tunnel expansions as well as new tunnel construction.

No matter what your tunneling needs call for, there is a cutterhead that will get the job done.

With a wide range of rotary cutterhead sizes, you will be sure to find a cutterhead you can outfit your equipment with. Whether your projects call for skid steer loaders, Brokks, mini excavators, backhoes, or even large excavators, there is an attachment for the job.

Suitable for any environment, a cutterhead attachment is the perfect solution for your tunneling needs.

If your company works regularly in these three areas, cutterhead attachments would be a great investment. With the right cutterhead you will see vast improvement in both your productivity and your efficiency.

With a versatile skillset and the ability to handle just about any surface, the cutterhead is the one tool designed to help you get the job done right.

Find out everything you need to know about rock grinding with a cutterhead  

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Topics: Cutter Heads, Trenching, Tunneling

3 Reasons a Cutterhead Cuts a Better Trench than a Hammer

Posted by Ryan Leech

Feb 25, 2014 7:30:00 AM

3-reasons-a-cutterhead-cuts-a-tetter-trench-than-a-hammerIf you have never completed a trenching project with the use of a cutterhead, you might be interested in knowing that you have been missing out.

Cutterheads have a wide range of ability that makes them incredibly proficient tools for trenching. Cutterheads are wonderful attachments that create smooth walls for a premium trench.

When compared side by side with hydraulic hammers, cutter heads have a superior versatility and precision that makes them a premium solution for any trenching project.

Here are three specific reasons cutterheads provide a better cut than your typical hydraulic hammer can.  

Less Noise

This may seem like a minor advantage, but cutterheads operate at a much quieter level than hammers do. The lower noise levels of cutterheads improve functionality in sensitive areas and in urban settings. This results in more flexibility for your operation and allows you to be less disruptive.  

Less Vibration

A second reason cutterheads have more to offer operationally than hydraulic hammers is their ability to cut with less vibrations. The lower level of vibration and shock waves improves trench wall stability. The improved stability leads to smooth safe walls while simultaneously creating a narrower trench. Narrower trenches allow you to leave a smaller footprint.

Trenching_hammer_vs_grinder

The higher level of quality and efficiency cutterheads provide in a trenching operation is preferable to the rough “V-shaped” walls that hammers require. Selecting a cutterhead over a hammer, your operator will have a stronger sense of control over his equipment and there will be a significant improvement in wall quality.

Better Gravel Creation

The third reason that cutterheads provide an advantage over hammers on trenching pojects is in the quality of gravel they produce. In addition to greatly minimizing over-breaking in the first place, the cut rock debris cutterheads typically create are -2 size gravel.

-2 size gravel can easily be used as backfill and directly applied on-location at the work site.

Being able to convert debris directly back into backfill will substantially reduce costs for your operation by eliminating unnecessary transportation.

Reducing your overall cost of projects will take your trenching operations to new levels of efficiency and pay great dividends for your company.

These are only three reasons that demonstrate the ability of cutterheads to equip your employees with the opportunity to perform at a higher level of effectiveness. If this level of quality is something that could benefit your company, you should consider using a cutterhead during your next project and see these results firsthand.  

If you found this article helpful you should consider subscribing to our blog. If you would like more information on the many different applications cutterheads are used for, we highly recommend you to our free eBook, The Ultimate Guide to Rock Grinding.

Find out everything you need to know about rock grinding with a cutterhead

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Topics: Cutter Heads, Trenching

How Efficient Are Your Excavation Projects?

Posted by Ryan Leech

Feb 18, 2014 7:30:00 AM

how-efficient-are-your-excavation-projectsWhen it comes to winning bids for excavation projects, one of the biggest factors companies take into account is price.

In such a price sensitive market it is imperative that your operation is able to run at full capacity without the delays and breakdowns that run your project off schedule and drive up the cost of the project.

Unfortunately, many companies fail to implement the necessary programs and policies necessary to ensure that their company is consistently operating at full speed. The results are long projects that don’t meet deadlines and missed opportunities because their bids don’t measure up to the competition.

This post is designed to help you assess your company’s efficiency on excavation projects and introduce some problems that could be potential areas of improvement.

Safety Education

The biggest setback a company can face is an injury on the worksite. There are inherent dangers that accompany excavation projects and no project is without risks, but there are hundreds of incidents every year that could be avoided with better safety education.

Ensuring that each employee is fully prepared for the safety hazards they encounter before a job is one of the best investments a company can make. Placing a high priority on safety education will help improve your efficiency on the job and protect your most valuable assets, your employees.

Better Equipment

Your employees can have a perfect understanding of the project and a great plan, but if you’re operating with lower-level equipment you will constantly struggle to perform work at the most efficient level you can.

Many projects suffer because they are using inadequate or less than efficient equipment for the task at hand. Keep an eye on the industry and always be looking to find the better solutions to your excavation problems. Many companies miss out on opportunities to improve their worksite efficiency by sticking to the status quo. Don’t be afraid to step out into new territory and try a product with good reviews.

If buying new equipment isn’t a financial reality, renting on a per-job basis can be an affordable alternative.

Attention to Maintenance

This goes along with the previous point about investing in better equipment. With the brutal conditions excavation equipment is subjected to, it is important to take the time daily to perform routine maintenance and ensure that your investments are well protected.

Whether the equipment loses some of its productivity or breaks down altogether, loss of efficiency due to neglect is completely avoidable.

A little time every day can go a long way to increasing your efficiency.   

If you’ve been struggling with efficiency on your recent excavation projects, evaluate these three areas and see if there are opportunities for improvement.

Find out everything you need to know about rock grinding with a cutterhead

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Topics: Trenching

Use a Cutterhead to Trench with Precision Each and Every Time

Posted by Ryan Leech

Jan 31, 2014 7:30:00 AM

Alpine TC-D trenching near Pittsburgh, PAThe cutterhead is considered the most efficient and versatile trenching tool, performing the majority of dredging work in the U.S. The rotating cutter apparatus at the intake end enables it to dig just about any type of material, even clay and hardpan.

Cutterheads have consistent dimensions; trench walls are vertical and smooth, and the surrounding rock mass will not be disturbed. Since trench walls are vertical, the volume of material excavated is minimized, regardless of depth.

Reliable, Consistent Results

Using a cutterhead allows for the perfect blend of cutting precision and force. This makes it an ideal tool for excavating materials like soil, rock, concrete and asphalt. No matter what your excavation needs, a quality cutterhead can provide your operation with the ideal, efficient and economical attachment. Cutterheads can also perform at any depth, depending only upon your carrier or excavator machine's depth and reach.

Precision cutting allows for a flat-bottomed trench and control over the grade and facilitates working safely around any existing utilities. Cutterheads can greatly improve the efficiency and effectiveness of any operation. Grinder heads are made with consistent dimensions that optimize cutting size capability and speed. The head’s consistency can create smooth, vertical trench walls, leaving the surrounding rock undisturbed.

Cutterhead Features

  • Powerful low-speed/high torque capability borrowed from underground tunneling and mining and technology.
  • Equipped to perform precision cuts and create ideal vertical walls, foundations and footers with minimal over-breaking.
  • Efficient cutting provided by a cutterhead creates reusable backfill onsite, reducing the need for expensive transportation of materials offsite for further crushing.

Improved Safety and Efficiency

Cutterheads can operate at any depth, depending upon the excavator or carrier machine

reach and depth. However, the trench must be cleared of cut debris. The safe, efficient removal of debris is an important consideration for depth of a trenching project. A mechanism can pump dredged material efficiently over long distances to an upland disposal area.

Each cutterhead will have a unique cutting width generally ranging from 19” to 55”. Cutterhead design requires a gear case leaving a gap in the middle of the drums, or no-cut zone. This causes an actual cutting width a few inches larger than unit width on the specs.

No matter what your trenching needs, you can use a cutterhead to trench with precision each and every time. Contact us for more information about the ideal cutterhead solution for you.

Find out everything you need to know about rock grinding with a cutterhead

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Topics: Trenching

About this blog

This blog is a resource for research, how-to's, and general news regarding rock grinders, transverse cutter heads, roadheaders, and alternatives to hydraulic hammers. 

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