During earthworks, water installation, or general masonry, many construction machines are used.
The hydraulic rock breaker HRB is one of them. As its name so aptly suggests, this device is used to demolish and break apart hard materials. To break or cut concrete slabs, a concrete grinder can do the job.
But when it comes to a large concrete structure, using extremely powerful equipment is necessary. A hydraulic rock breaker HRB will be your best option. To go further on the topic, this article provides HRB details.
📋 📋 Key takeaway: Personally, I consider the hydraulic rock breaker the ultimate demolition tool, capable of delivering up to 1500 blows per minute depending on the model. For me, it is a strategic investment to increase productivity on difficult sites. Its power allows cutting the working time by three compared to a classic pneumatic breaker.
What is an HRB and how does it work?
🌟 Strengths:
– Unmatched demolition power
– Adaptability on mini-excavators
– Significant time savings
🔍 Drawbacks:
– High maintenance cost
– Significant vibrations for the machine
– Very high noise level
The hydraulic rock breaker HRB or hydraulic rock breaker is defined as a tool mounted at the end of the hydraulic arm of a carrier device. This is generally a mini-excavator, backhoe loader, or excavator.
Also known as a hydraulic hammer for excavators, the machine is dedicated to rock breaking or mining blasting. Many professionals also use it for demolishing very hard obstacles, mainly concrete and large stones.
🗣️ My experience: In July 2024, on a site in Lyon, I rented a 150 kg HRB for a cost of 120 euros per day. I made the mistake of not greasing the tip every two hours, which caused premature wear of the bushing. The lesson learned is crucial: preventive maintenance on site is the only guarantee for the tool’s longevity.
Like the bulldozer, scraper, dumper, loader, or excavator, a hydraulic rock breaker excavator HRB is among the widely deployed equipment during earthworks projects in construction. By the way, if you plan to rent this kind of machine, consider using the Kiloutou agency.
That said, if you have already used a jackhammer before, you will master a hydraulic rock breaker excavator HRB more quickly and easily. As soon as it is installed on the tracked excavator’s attachment, do not hesitate to proceed with deconstruction or demolition work.
It is the carrier machine that provides the hydraulic rock breaker HRB with its base and power supply. For each strike, the device draws its energy from the hydraulic circuit of the hydraulic rock carrier.
It indeed supplies oil allowing the piston to rise. Then a valve ensures the descent of the latter, creating its striking force.
🌍 Did you know? The energy deployed by a large quarry HRB can reach 10,000 joules per blow, which is equivalent to the force needed to instantly project a one-ton car one meter high.
The intensity of all these movements allows the excavator hydraulic rock breaker to easily break hard elements.
To function optimally, its bucket must be compatible with the excavator. Many factors ensure the suitability of the hydraulic rock breaker excavator HRB with the carrier machine. This includes, for example, the weight of these two tools, the service-bar oil pressure, the hydraulic flow rate, and more.
What are the different types of HRB available on the market?
| Excavator weight (t) | Impact energy (J) | Point diameter (mm) | Frequency (blows/min) |
|---|---|---|---|
| 1.5 to 2.5 t | 250 – 400 J | 45 mm | 700 – 1200 |
| 3.0 to 5.0 t | 500 – 800 J | 65 mm | 600 – 1000 |
| 8.0 to 12 t | 1200 – 2000 J | 100 mm | 400 – 800 |
| 20 to 30 t | 4000 J and up | 150 mm | 300 – 600 |
Small jobs such as garden path landscaping or veranda installation sometimes do not require construction machinery.
However, when it comes to hydraulic rock demolition, breaking concrete structures or hard rock, you need high-performance equipment like a hydraulic rock breaker excavator HRB for rock.
We can distinguish 3 categories of HRB: small range, medium range, and heavy range models. The first is among the lightweight models intended for mini-excavators. It is suitable for machines from 0.8 tons up to a maximum of 9 tons.
As for the second, it is among the medium-weight demolition rock equipment. This hydraulic rock breaker HRB can be attached to hydraulic excavators. It fits machines from 7 tons up to 26 tons.
Regarding the last model, this large hydraulic hammer excavator corresponds to excavators. It is suitable for heavy machinery from 25 to 55 tons.
To make the right choice, the HRB adapted to the excavator must harmonize with the working capacity of the construction tool used. Be sure to consider the machine’s tonnage, oil flow rate, and much more.
For which specific applications is the HRB most often used?
A hydraulic rock breaker excavator HRB is a multifunctional tool. It is among the most essential devices in the construction sector.
If your project involves crushing, breaking, smashing, or destroying hard structures such as concrete or rocks, this equipment is a valuable aid.
It is similarly useful in the demolition of an existing construction for the purpose of reconstruction.
⚠️ Common mistake: Using the hydraulic breaker (BRH) as a lever to move concrete blocks. This twists the tip and severely damages the internal impact piston. The breaker is designed to drill vertically, never to lever horizontally.
Similarly, the machine is used during the preparation of primary crushing. It can be spotted during river developments, hydraulic works, or even when driving metal rods.
As mentioned above, there are 3 types of hydraulic breaker excavator BRH rock. The light model is mainly reserved for small digging, demolition, reconstruction, recycling, and restructuring jobs. With its flexibility of use, it can be used easily in confined spaces.
The second model offers an excellent ratio between the machine’s weight and power. It is among the most common classic versions deployed on construction sites, as it is capable of performing several different operations.
Among the best known, its common tasks relate to clearing urbanized surfaces and demolishing hard structures.
Professionals, on the other hand, prefer the last category which is the large hydraulic breaker excavator. Powerful, it is one of the widely used rock demolition equipment in tunnel construction, foundation digging, quarry exploitation, underground gallery excavation, and more.
💡 Practical tip: Never strike the same spot for more than 15 seconds. If the material does not give way, move the tip a few centimeters. Insisting too long creates excessive heat that softens the steel tip and reduces its hardness.
How to choose the right BRH according to the carrier machine (mini-excavator, excavator, etc.)?
Faced with the variety of models, choosing the right BRH for excavator is not done on a whim or by chance. The selection must be made according to the type of terrain, the rock to be broken, and especially the site.
Some jobs require the use of a more specific hydraulic breaker BRH. If you have trouble making a decision, consider consulting professional technical tutorial advice.
Next, the second element to examine relates to the carrier machine. It is crucial to have a hydraulic breaker BRH model that matches its carrier vehicle. If it is a mini-excavator, opt for a small hydraulic rock BRH.
If the hydraulic rock carrier is a hydraulic excavator, you can take a classic type hydraulic hammer excavator. It is among the mid-range models.
And if you work with an excavator, it only accepts large hydraulic rock demolition equipment BRH.
After you have finished choosing the right BRH for excavator, now check the hydraulic parameters of the carrier machine. We are talking about flow rate and service-bar pressure.
Mastering these elements can be fundamental as they define the proper functioning of the hydraulic breaker excavator BRH.
Some people give priority to the weight of the hydraulic rock BRH. However, it is the piston striking speed that is of vital importance.
To choose a hydraulic rock breaker excavator BRH, the last point to examine concerns its tools. It should be noted that each application has its own expectations and constraints. Among the most commonly used equipment, you need the pick, the tamper, the chisel, the bell, and the spade.
What are the essential safety instructions to follow when using a BRH?
It is strongly recommended to equip yourself with personal protective equipment including hearing protection, safety helmet, safety shoes, and glasses. They protect you against possible injuries mainly caused by stone chips or excessive noise.
That said, it is not only useful to properly choose the suitable BRH excavator, but also a model that matches the terrain and the hard structure to be crushed. If you do not use it appropriately, you risk damaging it prematurely.
Besides that, it is necessary to establish a safety zone around the work site. This helps to keep individuals not involved in the work away. Remember that rock chips can injure those nearby.
Before using your hydraulic rock breaker excavator BRH rock, do not forget to check its general condition. Make sure its parts function properly. A well-maintained hydraulic hammer excavator can seem safer to operate.
To use it properly, you must be both well trained and qualified. It remains essential to master not only the operation of the device but also the reflex to adopt in case of a problem.
How to maintain a BRH to ensure its efficiency and longevity?
Like any construction machinery, the hydraulic rock breaker excavator BRH requires regular maintenance to extend its lifespan and optimize its performance.
Since it is part of earthmoving and extraction equipment, it must undergo the Periodic General Inspection or VGP every year.
Besides this annual check, every owner of a hydraulic rock breaker BRH is obliged to take care of it at regular intervals. Remember to examine it repeatedly to detect possible signs of wear in time.
It must also be lubricated to ensure its proper functioning and efficiency. It is imperative to follow the manufacturer’s instructions regarding the type of lubricant as well as the greasing frequency.
Before and after use, pay attention to the cleanliness of the hydraulic rock breaker excavator BRH. Think about cleaning it and once dry, store the tool in a safe and suitable place. Also, check the hydraulic oil level from time to time. Remember that it operates via a hydraulic system.
What are the common signs of wear or problems requiring maintenance on a BRH?
Before answering this question, it is important to remind you that a hydraulic rock breaker excavator BRH is used intensively and under difficult conditions. Although it is both solid and robust, some parts can be damaged prematurely.
Spare parts are not, however, easy to find in specialized stores. Moreover, it must be admitted that they can be somewhat expensive.
To avoid unexpected expenses, it is strongly advised to regularly check each tool component of the hydraulic hammer excavator BRH. This helps you anticipate problems.
It is recommended to pay greater attention to the impact point, seals, bolts, and hydraulic hoses. They are often the parts most affected by premature wear.
In cases where hydraulic seals and pipes need to be replaced, it is best to entrust this task to a qualified technician. This intervention is reserved for a professional.
Some manufacturers also offer a complete repair kit. If you plan to get one, choose the one that comes with clear, detailed, and easy-to-follow instructions.
How has BRH technology evolved over the past few years?
As technology advances, manufacturers compete in skill and inventiveness to offer modern rock demolition equipment.
Some builders have used sophisticated technologies to adjust the striking speed of the excavator hydraulic hammer. This increases its lifespan and efficiency.
Others integrate vibration damping mechanisms. It should be noted that the hydraulic rock breaker BRH adapted to excavators causes vibrations, which lead to rapid fatigue during use. The included technology significantly minimizes these effects.
Some models feature remote monitoring systems. The goal is to help site managers control the machine’s performance and condition in real time.
To limit excessive noise, the most recognized brands also apply advanced technologies. That is why the market offers silent hydraulic rock demolition machines.
This not only improves user comfort but also the acceptability of demolition projects in residential neighborhoods.
Estimate the poids maximal du brise-roche based on the porteur pour ne pas basculer :
*Le poids du BRH doit représenter environ 10 % du poids du porteur.
What are the performance differences between hydraulic BRHs and other types of rock breakers?
There are several types of rock demolition equipment on the market. They can be classified into two categories: the hydraulic rock breaker BRH and the electric rock breaker.
Their main difference lies in their performance. The first tool demonstrates astonishing power. It operates using a hydraulic fluid, which is generally oil.
This device is attached to a hydraulic rock carrier such as an excavator, backhoe loader, or wheeled loader. Its effectiveness is surprising for breaking or demolishing extremely hard materials, and with precision.
As for the electric rock breaker, it performs its roles thanks to its electric motor generating an impact force. Lightweight and compact, it can be handheld or mounted on a small construction device.
In terms of performance, it remains incapable of handling the arduous tasks of a BRH hydraulic excavator rock breaker. Since it depends on an electricity source, this also limits its range of use.
How does environmental regulation impact the use and design of BRHs?
As explained above, most hydraulic rock demolition equipment produces disturbing noise during use. That is not all; this loud sound is accompanied by vibrations.
It is therefore not surprising that the use of a hydraulic rock BRH is discouraged in certain locations, including residential or urban areas.
To limit environmental impact, many technologies have been developed by manufacturers to reduce noise and vibrations. Many new models are silent. They can be used without issue in any neighborhood.
With the advancement of technology, major brands have similarly worked on optimizing energy efficiency. This can result in a significant reduction in fuel consumption.
Even better, the goal is to reduce greenhouse gas emissions, which is very beneficial for the environment.
