Aug. 19, 2024
Machinery
If you are looking for more details, kindly visit YuchaiHI.
Designed to break large rocks, rock breakers or generally called as hydraulic hammers, as an attachment to backhoe loaders, excavators etc., are generally used in the mining industry where oversized rocks are too large or hard to be reduced in size by a crusher. A hydraulic hammer to break rocks and a boom (arm) are two major components of the rock breaker. There are two major types of rock breakers i.e., mobile and stationary, typically placed on a pedestal or slew frame.
Generally, rock breaks are used to perform various tasks. These include...
1. Rock mining without blasting: Rock breakers are used for primary rock mining to increase productivity and save time. The rock breakers can in fact reduce the load on the primary crusher, thereby, increasing the latter&#;s output. Rock mining without blasting is also environment-friendly as the blasting emissions are eliminated. Also, this method boosts safety at the site as there are no flying rocks in the air.
2. Secondary reduction: In cases when the blasted rock is too big to be handled by loading equipment or the crusher, the importance of secondary reduction comes into play. Even with the most advance blasting techniques, it is inevitable that there will be oversize boulders and these need to be broken as economically as possible. It is in such cases that rock breakers come handy than the crusher.
3. Demolition: Rock breakers are very much suited for the demolition tasks. They are commonly used to break down concrete structures.
4. Other uses: Rock breakers can also be used for other operations such as tunnelling and excavating and trenching.
How to get the best out of the rock breaker?
Keeping in mind the functions performed by the rock breakers, it cannot be denied that they are an important attachment with backhoe loaders or excavators and need to be maintained well to give good results. Here are some top tips to get the most out of your rock breaker...
1. Visual inspection of the rock breaker: It takes only few minutes to visually inspect the rock breaker for any wear and tear. Visual inspection should be done after every use of the rock breaker. This can help you identify any worn or damaged components and prevent unexpected downtime. The visual inspection checklist should include checking hydraulic hoses, the breaker shell, attachment pins, tool retainers and locks and the tool point for any cracks or gouges.
2. Greasing the equipment: This is an extremely important step because it helps in lubricating and clearing the tool bushing area of debris. Thus, rock breaker should be greased at regular intervals. When greasing the rock breaker, manufacturer&#;s recommendations should be followed. To quote an example, there could be seal damage or even a catastrophic failure if the grease is added before properly positioning the breaker. Another example could be that too little grease could cause the bushings to overheat, seize and damage tools. Ideally, greasing should be done every one to two hours to reduce build-up, tool wear and bushing wear.
3. Inspecting the nitrogen pressure: Some breakers feature nitrogen gas assist systems that work with the hydraulic oil to accelerate the breaker&#;s piston. In these cases, it is necessary to maintain and fill the nitrogen reservoir as needed for consistent power and output. The proper nitrogen charge pressure depends on the application and outside working temperature. The nitrogen level required for breaking rocks is different from what is required for breaking concrete in a parking lot. Here, the attachment&#;s operation and maintenance manual can come to help as it will have the mentione about the nitrogen pressure setting for your application and working temperature.
4. Performing regular checks: It is necessary to regularly check the wear status of chisel, bushes and chisel pin. Excessive wear of bushes and chisel can cause chisel head and piston damage. Rock breaker parts are easily available in the market and they can be bought to bring back the rock breaker into a good working condition.
5. Servicing the rock breaker on a regular basis: The durability of the rock breaker can be increased by servicing it on a regular basis. Rock breakers can be repaired or rebuild to give good results.
Apart from the above, the other few things that should be kept in mind include:
1. Always follow the rock breaker specifications written in the owner&#;s manuals, catalogues and brochures.
2. The rock breaker should never be used in a &#;lever&#; motion. Also, the rock breaker should not be dropped on the object which is to be broken as it can damage the rock breaker and the equipment on which it is attached.
3. The impact point should be moved from the edge to the centre for achieving best working efficiency.
4. The tool point should be matched to the respective application to significantly maximise jobsite production and extend the breaker&#;s life.
5. In order to effectively break material, each breaker must be properly sized to a specific carrier&#;s performance. Energy can be displaced and this can diminish the breaker&#;s impact on the material, if the breaker is too large for the carrier. Alternatively, if the breaker is too small, it can put excessive pressure on the working steel and other mounting components, thereby, causing damage.
Thus, by following the above-mentioned tips, you can ensure that your rock breaker gives maximum result at the jobsite and its life is extended considerably. While there are many companies which manufacture rock breakers which are very efficient but one that deserves a mention is Mahindra Construction Equipment&#;s (MCE) rock Breaker.
Rock breaker offered by MCE
MCE offers various attachments with its Mahindra EarthMaster backhoe loader and Rock Breaker HD is one among them. The rock breaker from MCE can be used for various applications. The features of rock breaker from MCE which makes it different from the others include:
1. Accumulator: High pressure surge dampener for protection of base carrier hydraulics.
2. Piston: Superior design, metallurgy and manufacturing render long life and trouble-free service.
3. Internal valve design for higher efficiency.
4. Can work in under water applications.
5. Auto greasing hole for break-free operation.
6. Back head design powers the breaker by stored gas.
7. Easy to charge and maintenance free.
8. Perfected clearance of cylinder allows longest service life in tropical climates.
Given the above features, definitely rock breaker from MCE can be your best bet for applications such as rock cutting, road cutting, pipelines, footings, demolitions and trenching.
To sum up...
In the coming years, the major drivers for growth of rock breakers would be the road and infrastructure industry and positive outlook of the mining industry that will lead to the increased demand in aggregates. So, it is right time that you arm your fleet with the best rock breakers to keep up with the growing demand.
The hydraulic excavator has been a real game-changer for the construction, earthmoving, mining and quarrying industries since its introduction in the s, not least due to its ability to tackle a wide variety of tasks with a simple change of attachment.
This ability is not always exploited, as many people still think of an excavator simply as a machine with a bucket used to dig and move earth. So we asked a few industry stalwarts &#; Queensland Rock Breakers (QRB) general manager, Fred Carlsson; Digga Australia marketing manager, Lionel Smitka; and Delecca&#;s sales manager, Jason Delecca &#; to name their top recommended excavator attachments.
RELATED READ: 5 main types of earthmoving equipment and when to use them
We&#;ll crown the digging bucket as champion because it&#;s both ubiquitous and indispensable. Then all three of our experts had rock breakers and hydraulic grabs on their lists, with vibrating compaction plates, flail mowers and sieve buckets appearing on two lists.
&#;As you get into the specialist fields, the must-have attachments depend on your application,&#; Carlsson pointed out.
&#;There are a number of attachments such as pile drivers and rock saws that probably don't make the list because of their limited overall applications but, as you can see, there is no shortage of attachments, which is one reason why excavators account for roughly half the machinery market in Australia.&#;
We take a look at each expert&#;s must-have list, then examine eight attachments in more detail:
Frederik Carlsson &#; Queensland Rock Breakers (QRB)
Lionel Smitka &#; Digga Australia
Jason Delecca &#; Delecca&#;s
A Bobcat flail mower in action
Perhaps a flail mower isn&#;t the first thing that comes to mind when talking about excavator attachments, but Delecca&#;s sales manager, Jason Delecca, places it at number one on his list.
&#;The flail mower is generally forgotten about, but it&#;s amazing what it is capable of doing,&#; Delecca said.
Suggested reading:If you are looking for more details, kindly visit Rockbreaker Excavator.
&#;We sell these to suit 1.5-tonne to 8-tonne excavators. It means that people can start clearing scrubs on sides of roads and also for small land-clearing jobs.
&#;We have had contractors go from clearing large highway roadsides to farm clearing and then into creaks and channels. It works the hydraulics but the rest of the machine generally works very easy when operating.&#;
Delecca said his Bendigo (VIC) business has used a few brands previously, but these days they recommend the Bobcat unit.
&#;It has a feature that shuts down the flails quicker and also side chains &#; not rubber &#; to stop debris going into unwanted directions,&#; he said. &#;Also, the body is strong and will withstand damage.&#;
Look up flail mower attachments for sale
An excavator&#;s hydraulic pressure makes it perfect for mounting auger drives with post hole borers to prepare the ground for fence posts, plants or signposts.
&#;You&#;ve just got to look around,&#; said Digga Australia marketing manager, Lionel Smitka.
&#;We drill holes for everything from planting trees and erecting playground equipment, to building foundations and fencing.&#;
&#;From domestic to commercial projects, there wouldn&#;t be many projects which wouldn&#;t require holes to be drilled,&#; he said.
&#;We&#;ve been selling hundreds of auger drives every month for over 30 years. The demand for holes is endless.&#;
According to Smitka, buying an auger drive is simple, but buying the correct one is not so straightforward.
&#;It&#;s almost a science where one must consider the size and depth of the hole to be drilled, ground conditions and host machine&#;s hydraulic system,&#; he said.
&#;Use a reputable company with a wide range of drives to ensure you are fitted into a drive which will give you the ideal drilling speed and torque for the expected ground conditions. Too fast in hard ground and the auger will skate over the ground without biting in. Too slow in good conditions and you&#;re wasting time and money.
&#;Talk to someone who knows what they are talking about,&#; Smitka emphasised. &#;If your machine&#;s hydraulic flow is the only question you&#;re asked, move on. Auger size, ground conditions and RPM are equally as important.&#;
Look up post hole borers for sale
Since the first rock breaker, or hydraulic hammer, was invented by Atlas Copco forebear Krupp (or possibly by Montalbert, depending on who you ask) in the late s, this excavator attachment has gone on to transform the construction, mining and quarrying industries.
QRB general manager, Fred Carlsson, put the rock breaker at number one on his list &#;as it is the highest value attachment required for most excavators in order to be able to compete on most jobs&#;.
&#;As it is a big investment for most owners, the key factors to consider are that it is a well-known brand supported by an established business that carries all parts to keep you going,&#; he said.
&#;Ensure you are getting value for money by comparing the energy impact, flow rates, etc, as some suppliers will sell a breaker that is too small for the application in order to bring down their price, which means you won't be getting the most out of your machine and attachment investment.&#;
Look up rock breakers/hydraulic hammers for sale
Adding a hydraulic grab or grapple to an excavator turns it into a versatile machine capable of handling rocks, logs, scrap materials and more&#; if you can grab it, you can move it.
The attachment&#;s versatility is proven by the number of names given to it &#; they&#;re also known as rock grabs, log grabs, static grabs, demolition grabs, stiff arm grabs and box tyne grapples.
&#;A hydraulic grab fits perfectly with a flair mower,&#; Jason Delecca said.
&#;It allows you to clear anything around you. We generally fit a lot of these to our regional contractors&#; excavators, and they are always very surprised at how much they use them once they are on the machine.&#;
Carlsson said you should pick your tool for your application, but make sure you buy the right one!
&#;Log grabs, finger grabs, orange peel grabs for scrap, magnetic grabs, or rotating grabs &#; all have specific designs for defined picking purposes,&#; he said.
Look up hydraulic grabs/grapples for sale
&#;You may be somewhat surprised that I placed trenchers as my number two,&#; Digga&#;s Lionel Smitka said. &#;After all, excavators are sold with a bucket which is used for digging trenches &#; so why would anyone spend $ on a dedicated trencher?
&#;Well, a trencher will cut a trench faster than a bucket &#; furthermore the spoil extracted from the trench is finer and able to be returned to the trench with little sinkage.
&#;For any operator trenching serious meters, a dedicated trencher attachment will be more efficient, saving time and money,&#; Smitka said. &#;It is the most underrated excavator attachment on the market.&#;
Look up trenchers for sale
Also known as twin-header rock grinders, rotary cutters, hydraulic cutters or simply as twin-headers, this attachment is designed for a variety of applications. This includes trench work in hard and compacted ground, concrete and rock wall profiling, dredging, demolition and quarry work &#; really in circumstances where conventional digging systems and percussion tools have little effect.
&#;Whether cutting out basements for high rise developments, or being a cost effective extraction tool for mining/quarry applications, twin head cutters chip in handy profits in cost-effectively extracting materials in hard-to-get-at-locations,&#; Fred Carlsson said.
Look up rock grinders for sale
Also known as hydraulic compactors or compactor plates, vibrating compaction plates are designed for compacting soil, trenches and embankments as well as driving in and pulling out piles, posts and formwork.
The vibration forces of the plates drive soil particles close together for solid, stable compaction in applications from narrow trenches to large backfill operations.
It&#;s generally simple to connect a compactor plate to your machine's existing hydraulics, and is even easier if you have existing hydraulic hammer piping.
Excavator-mounted vibrating plates have a number of benefits over manually operated compactors: they&#;re safer as no one needs to actually stand in the workspace; they generally create less noise; they can be used anywhere the boom can place them; and much of the excavator load is partially transferred to the plate, thus accelerating the compaction process.
Look up compaction plates for sale
These buckets are used to sort a wide variety of materials from rock, gravel, soil, bricks and rubble to hot materials such as steel slag. Their applications are equally diverse, from recycling and demolition to feeding crusher units and the remediation of contaminated soil.
Also known as riddle buckets, sorting buckets, shaker buckets or skeleton buckets, they are filled with material and then shaken to allow finer pieces to fall through the grill while retaining larger objects, such as bricks and rubble. It goes without saying that you need to choose an aperture that suits the materials being sorted.
Look up sieve buckets for sale
For more information, please visit Rotary Drilling Rig Machine.
If you are interested in sending in a Guest Blogger Submission,welcome to write for us!
All Comments ( 0 )