Category: English posts

How can I check if my excavator hydraulic pump is working well?

In the event that the hydraulic excavator does not have enough power or even when buying an excavator, it is useful to check whether the hydraulic pump has enough power. Normally, however, you do not have any equipment for measuring pressure with you. Don’t forget that pressure alone is not a criterion for sufficient power. You would also have to measure the volume of the oil flow.

So what can be done to check the performance of the hydraulic pump?

An excavator usually has a so-called load-sensing pump. The pump’s sensors constantly check the pressure and the oil volume demanded. The pump permanently adjusts the volume flow and the pressure to the requirements during work. To check performance, an experienced inspector will usually test whether the excavator can make three different working movements at the same time without slowing down the flow of one working movement. For example, lifting the boom, extending the arm and extending the bucket at the same time. The inspector must note whether there are one or more hydraulic pumps for the different components. Often the traction drive has a separate pump.

Pressure test for comparison with the manufacturer’s data

The type of test described so far is helpful if you do not have a pressure gauge available. However, for a more accurate test of performance, it is helpful to be able to measure pressures. To do this, the inspector needs to connect a pressure gauge to the test ports and measure the pressures for the pump and the pilot pressure. The recorded data must be compared with the manufacturer’s specifications.

Which company can inspect an excavator with pressure measurement?

Some MEVAS inspectors are equipped with dial gauges. We can offer a very thorough examination of the condition of used hydraulic excavators in various countries. Of course, we are also responsible for any other construction machine and for large equipment from the mining industry. The guide can be downloaded here.

Excavator swing bearing play measuring

The swing bearing is one of the weakest points in the structure of an excavator. At this point, the stable undercarriage, the so-called X-frame, is connected to the superstructure. The superstructure rotates endlessly on this pivot. On a larger excavator, you will find a counterweight weighing perhaps 15 tonnes. It balances the whole machine and is designed to keep the machine stable and balanced with the arm extended and the bucket full. On the other hand, this means that when the bucket is empty and the arm is close to the machine, the rear side of the machine is loaded.

To ensure that everything runs well, the pivot bearing, also called the slewing ring, has several lubrication points. Ideally, these are supplied with grease of the right consistency by an automatic lubrication system.

The rollers or rolls of the large bearing now run permanently over the running surfaces, generating wear through friction and pressure. At some point, the play becomes so large that machine safety is endangered. When inspecting a used excavator, it therefore makes sense to measure whether the play is still within the permissible tolerance.

How to measure?

To do this, the slewing ring must be loaded once and then unloaded again after the dial gauge has been placed on it. The play is measured between these two states. Most inspectors for construction machinery know the procedure. Depending on the equipment of the machine, one must decide whether a filled excavator bucket is sufficient to achieve the load on the front, or whether additional weights are required. Also the use of a hydraulic jack can be considered.

When to measure, cost for replacing?

Our inspectors have the necessary knowledge to carry out a measurement correctly. During used machine inspection process the inspector does a functional test. Experienced technicians can feel already at this stage if a measurement is required. After the measurement, we can help to decide whether the play is acceptable or whether you need to replace the slewing ring. The Liebherr R964 excavator pictured above had 5mm clearance across the front of the frame and 4.7mm across the side. It is not safe to continue working with this slew ring. Exchange will cost probably more than 12.000 $

Who can inspect used civil engineering equipment?

A exciting part of our work is machine inspections of used Civil Engineering Equipment. These machines are particularly complex and have diverse specifications. We can check drill rigs, pilling machinery, desanding machines, vibrators, vibration hammers and leaders, diesel impact hammers, telescopic leaders, RTG equipment, grab systems, duty-cycle cranes and diaphragm wall grabs.

By the way do you have experience with this kind of machines? Do you know what a Kelly bar is and on which machine it is in use? Let us know in the comments!

If you do not have a qualified technician at hand or the machine is located far away from them, you are welcome to contact us.

What kind of heavy civil engineering equipment is known and what is it used for?

Heavy foundation equipment is specialized machinery used in the construction of foundations for buildings, bridges, and other structures. These machines are designed to handle the challenges of excavating, drilling, and preparing the ground to support the weight and stability of the structure. Here are some common types of heavy foundation equipment and their primary uses:

1. Pile Drivers: Pile drivers are used to install piles (vertical structural supports) into the ground. These piles can be made of concrete, steel, or wood and serve as the foundation for structures. Pile drivers use hydraulic or diesel hammers to drive piles into the soil.
2. Drilling Rigs: Drilling rigs are used to bore deep holes into the ground for various foundation types, including drilled piers, caissons, and micropiles. They are commonly used in projects requiring deep foundation solutions with CFA. Well known are brands such as Bauer, Casagrande or Soilmec.
3. Vibrodrivers: Vibrodrivers use vibration and force to drive sheet piles or steel H-beams into the ground. They are particularly useful for creating retaining walls and other foundation support structures.
4. Cranes: Cranes are used to lift and place heavy elements of a foundation, such as precast concrete sections or steel beams. They are also employed for positioning drilling rigs and piling equipment. Cranes are often used for diaphragm wall foundation.
5. Compactors: Compactors are used to compact the soil or fill material, ensuring proper density and support for the foundation. They come in various forms, including plate compactors and roller compactors.
6. Concrete Mixers and Batch Plants: These machines are used to mix and batch concrete for various foundation types, including footings, slabs, and mat foundations.
7. Foundation Drills: These drills are specifically designed for creating holes and bores in the ground for piles or caissons. They can include rotary drills and auger drills.
8. Soil Stabilizers: Soil stabilizers are used to improve the properties of the soil by mixing it with binding agents. This is essential for creating a solid foundation in areas with challenging soil conditions.
9. Tunnelling Equipment: In the case of tunnel foundations, specialized equipment such as tunnel boring machines (TBMs) are used to excavate tunnels in underground construction projects.

The choice of foundation equipment depends on the specific requirements of the project, the type of foundation needed, and the geological and environmental conditions of the site. Proper foundation preparation is crucial to ensure the stability and longevity of the structure being built.

Which company can inspect used quarry and mining equipment?

Unlocking Your Fleet’s True Value: Expert Fleet Machinery Inspections by MEVAS

When the time comes to navigate the intricate terrain of selling entire fleets of heavy machines, a crucial question invariably arises for the discerning seller or buyer: How can you gain an accurate, unbiased appraisal of the machinery’s condition and true value?

Enter MEVAS, your trusted partner in the world of fleet machinery inspections within quarries and mining operations. With a vast network of seasoned technicians who possess an intimate understanding of the construction and mining industry’s colossal machines, we stand ready to help you embark on your next venture with unwavering confidence.

Why Choose MEVAS?

1. Global Expertise, Local Insight: Our international presence enables us to offer on-the-ground expertise wherever your fleet may be. Whether it’s a quarry in the heartland or a mining operation on the other side of the world, our technicians are well-versed in the nuances of heavy machinery.
2. Proven Track Record: Over the past few years, MEVAS has played a pivotal role in diverse and fascinating projects across the globe. Our portfolio boasts success stories that span continents, reinforcing our reputation as a reliable and results-driven partner.
3. Rapid, Accurate Assessment: In the fast-paced world of construction and mining, time is of the essence. With MEVAS, you’ll experience a swift and precise assessment of your machinery. Our experts can efficiently evaluate multiple machines in a short span, allowing you to make informed decisions without delay.

At MEVAS, we understand the importance of transparency and reliability when dealing with fleet machinery. Our detailed inspection reports provide a comprehensive view of each machine’s condition, ensuring you have the information needed to make sound decisions about your fleet’s future.

Don’t leave the fate of your heavy machinery to chance. Choose MEVAS for a partnership that brings clarity, precision, and value to your fleet machinery transactions. Experience a new level of confidence with our fleet machinery inspection services.

If you would like to know more about this, please contact us. You can also find some interesting pictures on our website under “Pictures and stories“

Do you like this article? Let us know.

Which kind of machinery is usually used in a quarry?

Quarries are mining operations where various types of machinery are used to extract and process minerals, rocks, and other resources from the earth. The specific machinery used in a quarry depends on the type of material being extracted and the scale of the operation. Here are some common types of machinery used in quarries:

1. Excavators: Excavators are heavy machinery with a bucket or shovel attachment at the front. They are used for digging, excavating, and removing overburden (unwanted material) to access the desired resources.
2. Loaders: Front-end loaders are used to load extracted material, such as rocks, into trucks for transportation. They are essential for moving large quantities of material quickly.
3. Bulldozers: Bulldozers are used to level and shape the terrain, push large rocks, and remove overburden. They are valuable for creating the working surface in a quarry.
4. Haul Trucks: Large trucks, including rigid dump trucks and articulated trucks, transport the extracted material from the quarry to processing or storage areas. These trucks have a high payload capacity.
5. Drills: Drilling equipment is used to create holes in the rock or mineral deposit for blasting or extraction. Types of drills used in quarries include blasthole drills and rotary drills.
6. Blasters: Blasters are responsible for drilling patterns and safely detonating explosives to break large rocks into smaller, more manageable pieces for extraction.
7. Crushers and Screens: Crushers are used to break down large rocks and minerals into smaller, marketable sizes. Screens separate material by size, allowing for the selection of specific grades of material.
8. Conveyors: Conveyors transport material from crushers and screens to various processing areas. They are crucial for efficient material handling within the quarry.
9. Wheel Loaders: Smaller wheel loaders are used for various tasks, such as moving material within the quarry, loading trucks, and handling stockpiles.
10. Water Trucks: Water trucks are used for dust suppression and controlling airborne particles, helping maintain a safe working environment.
11. Excavator Attachments: Various attachments for excavators, such as rock breakers and grapples, can be used to assist in material extraction.
12. Wire Saws and Chain Saws: These specialized saws are used to cut large blocks of stone or rock, especially in dimension stone quarries.
13. Dewatering Equipment: In wet quarries, pumps and dewatering equipment are used to manage water levels and maintain a dry working environment.
14. Environmental Control Equipment: This includes systems for controlling dust and monitoring air quality, as well as water management systems to prevent contamination of nearby water sources.

The specific machinery and equipment used in a quarry may vary depending on the type of material being extracted (e.g., limestone, granite, sand, gravel, or minerals) and the quarry’s size and operational needs. Safety measures and environmental considerations are also crucial in quarry operations to minimize the impact on surrounding ecosystems and communities.

Is it a good idea to purchase used heavy equipment on auctions?

When you are looking for used machinery but you can’t find any around your home, it might be an idea to check used machinery auctions. To reduce your risk before buying, you can book a Mevas technician for an inspection. He will check the machine or the machines on your behalf. On auction sites we offer a special kind of inspection for a lower fee.

We are specialized in inspection of heavy machinery. Mevas can deliver detailed inspection for small machines such as a mini digger of 2 ton but of course we can also inspect a 100ton mining truck, a 200ton capacity mobile crane or big excavators.

What kind of experiences have you had when buying used machines? Let us know in the comments.

Advantages and Risks of buying machinery on auctions

Purchasing used heavy equipment at auctions can be a good idea, but it comes with both advantages and potential risks. Whether it’s a good idea for you depends on your specific needs, budget, and willingness to take on certain uncertainties. Here are some of the pros and cons of buying used heavy equipment at auctions:

Advantages:

1. Cost Savings: Auctions often provide the opportunity to acquire heavy equipment at a lower cost compared to buying new or from dealerships. You might find good deals on well-maintained machinery.
2. Diverse Selection: Auctions offer a wide range of equipment, from different manufacturers, models, and types, allowing you to choose the one that best fits your needs.
3. Opportunity to Bargain: In some cases, you may be able to negotiate a lower price or secure a good deal if bidding competition is limited.
4. Quick Acquisition: Auctions can be a relatively fast way to acquire the equipment you need, especially if you win a bid or make a purchase on the spot.
5. Potential for Unique Finds: Some rare or specialized equipment may be available at auctions, which might not be readily found through traditional dealerships.

Risks and Considerations:

1. Limited Inspection Time: You may have limited time to inspect the equipment thoroughly before bidding. This can lead to unexpected issues if you overlook important details.
2. Unknown History: It can be challenging to ascertain the maintenance and usage history of used equipment at auctions, which increases the risk of hidden problems.
3. Competition: Auctions can be competitive, and you may end up paying more than you originally intended if there is strong demand for a particular machine.
4. No Warranty: Most auction sales are typically “as-is,” meaning you may have little or no recourse if the equipment encounters issues shortly after purchase.
5. Buyer’s Premium and Fees: Auctions often involve additional costs in the form of buyer’s premiums and fees, which can add to the overall purchase price.
6. Ownership Transfer and Logistics: You’ll need to manage the logistics of transporting the equipment to your location, which can be a significant cost and logistical challenge, especially for large machinery.
7. Understanding the Auction Process: It’s important to understand how auctions work, including bidding strategies and payment terms, to participate effectively.

Whether purchasing used heavy equipment at auctions is a good idea for you depends on your comfort level with these considerations, your experience with heavy machinery, and your ability to mitigate risks through careful inspection and research. If you choose to go this route, be sure to thoroughly research the auction, conduct due diligence, and, if possible, attend preview days to inspect the equipment in person. Consulting with experts or having a qualified mechanic or inspector on hand can also help you make informed decisions.

Which auction platforms are globally relevant for purchase and sales of used heavy machinery?

Several auction platforms are globally relevant for the purchase and sale of used heavy machinery. These platforms have a broad international presence and offer a wide range of construction and heavy equipment. Here are some globally recognized auction platforms for used heavy machinery:

1. Ritchie Bros. Auctioneers: Ritchie Bros. is one of the largest and most well-known auction companies for used heavy equipment. They hold auctions worldwide, both on-site and online.
2. IronPlanet: IronPlanet is an online auction platform for used construction equipment, offering a wide selection of machinery and trucks. They are known for their IronClad Assurance, which provides equipment condition reports.
3. Euro Auctions: Euro Auctions conducts heavy equipment auctions across Europe and other regions. They are especially known for their periodic auctions of industrial equipment.
4. Proxibid: Proxibid is an online marketplace and auction platform that hosts a variety of auctions, including those for heavy machinery and construction equipment.
5. AuctionTime: AuctionTime, a subsidiary of Sandhills Global, specializes in online auctions for construction equipment, trucks, and agricultural machinery.
6. Mascus: Mascus is an online marketplace for used heavy machinery and trucks, allowing buyers and sellers to connect directly. It lists equipment from various countries.
7. Government Surplus Auctions: Many governments and municipalities hold surplus equipment auctions online, making it possible to find used machinery at competitive prices. Websites like GovDeals in the United States are relevant in this context.
8. Plant & Equipment: Plant & Equipment is an online platform for buying and selling construction equipment and machinery, offering a global marketplace for heavy equipment transactions.
9. Iquippo: Iquippo is an online marketplace for used construction equipment, operating in India but with a growing presence in other countries.
10. TradeMachines: TradeMachines is a search engine for used machinery auctions. It aggregates listings from various auction platforms, making it a convenient tool for finding equipment globally.
11. eBay: While primarily known for consumer goods, eBay has a section dedicated to heavy equipment auctions and listings. It’s a global platform with a variety of construction machinery.
12. Bar None Auction: Bar None Auction is an auction company that conducts heavy equipment and machinery auctions in various locations, primarily in North America.

When participating in global machinery auctions, it’s essential to carefully review the listings, understand the terms and conditions of the auction, and conduct thorough due diligence on the equipment. Many of these platforms offer inspection reports, photos, and detailed information about the machinery, allowing buyers to make informed decisions. Additionally, consider factors like shipping and import/export regulations when buying equipment from different countries.

What is a CAT TA-2 inspection ?

There are different types of inspections for used Caterpillar machines. There is the TA1-level for a standard inspection and the TA2-level for inspections with more in-depth investigations.

In line with the needs of our customers, we generally offer inspections at the TA1+ level. Can you imagine what that means? It is a visual inspection that includes a performance test and a functional test. Engines, gearboxes and torques are tested by running the machine. Tyres or Undercarriage are measured and estimated for remaining life. A detailed inspection checklist is prepared and photo documentation is taken. The so-called Product Status Report PSR is downloaded from the ECMs. And we look out for weak points on the equipment. If you have questions afterwards, we are there for you and answer them quickly.

Is a CAT TA-1 inspection sufficient?

For larger machines, a TA1 inspection is often not sufficient. Machines have a service life that far exceeds that of a standard earthmover. For these machines we offer an extended inspection service similar to TA2 on request. Our engineers do filter cutting, oil sampling, opening the final drives and take cycle times. We know the required specifications for CAT-equipment. For midsize and smaller machinery a TA-1 Plus is the best solution.

By the way, the level of a CAT-TA inspection applies as well for all other brands such as Liebherr, Komatsu, Hitachi or Volvo CE. If you are looking for used heavy machinery try a search here.

Do you have any experiences with Caterpillar TA2-level inspections? Let us know in the comments below.

What operational testing should a detailed inspection for a used heavy machine include?

A detailed inspection for a used heavy machine should include various operational tests to assess the machine’s performance, safety, and overall condition. These tests help identify any potential issues, defects, or areas that require maintenance or repair. Here are some key operational tests that should be part of the inspection:

1. Engine Performance Test:

• Start the machine and observe the engine’s startup, idle, and shutdown procedures.
• Check for abnormal noises, vibrations, or smoke emissions.
• Test engine throttle response and acceleration.
• Evaluate the machine’s ability to maintain a consistent RPM (revolutions per minute) under different loads.

1. Hydraulic System Test:

• Test the hydraulic functions, such as lifting, lowering, and tilting (for equipment like excavators and loaders).
• Check for hydraulic leaks or abnormal fluid levels.
• Assess the responsiveness and smoothness of hydraulic controls.

1. Transmission and Drive System Test:

• Test the forward and reverse gears (if applicable).
• Evaluate the functionality of the transmission, including smooth shifting and proper engagement.
• Inspect the performance of the differential and drive axles.

1. Brake and Steering System Test:

• Check the braking system for responsiveness and effectiveness.
• Test the parking brake and ensure it holds the machine securely.
• Assess the steering system for smooth operation and proper alignment.

1. Electrical System Test:

• Check the operation of all electrical components, including lights, indicators, gauges, and warning systems.
• Test the battery, alternator, and starter to ensure proper charging and cranking.

1. Attachments and Accessories Test:

• If the machine has attachments or accessories (e.g., buckets, forks, blades), test their functionality and alignment.
• Check for wear and tear on the attachment points and pins.

1. Operational Efficiency Test:

• Evaluate the machine’s overall efficiency in performing its intended tasks. This can include lifting capacity, digging power, or other relevant factors based on the machine’s type and purpose.

1. Safety Systems Test:

• Test safety features such as seatbelts, rollover protection systems (ROPS), and other safety interlocks.
• Ensure that warning signals and indicators work properly.

1. Noise and Vibration Assessment:

• Listen for unusual noises during operation that may indicate mechanical issues.
• Assess the level of vibration and its impact on the operator and machine components.

1. Load and Performance Tests:
   • For specific heavy machinery, conduct load tests to assess their performance under load conditions.
   • Check for stability, tipping, or structural issues when handling loads.
2. Functional Test of Special Features:
   • If the machine has specialized features (e.g., GPS systems, advanced control systems), ensure they function as intended.
3. Safety Inspections:
   • Verify that safety guards, shields, and other safety features are in place and functional.
   • Ensure all emergency shut-off systems are operational.

A detailed inspection may also involve using diagnostic tools and equipment to assess the machine’s performance and condition more accurately. It’s important to document the results of these operational tests in a comprehensive inspection report, which can help potential buyers or users make informed decisions about the machine’s purchase or use. Additionally, consulting the manufacturer’s guidelines and specifications for the specific machine being inspected is advisable to ensure that all relevant tests are performed.

What means biosecurity inspection for machinery entering Australia?

Australia’s import regulations for used machinery are the strictest in the world in terms of the cleanliness of the machinery. If used machines are not clean enough to be allowed into Australia, they must be re-exported to Singapore. There they will be cleaned at the buyer’s expense.

Who can do pre-shipping inspections or cleanliness inspections?

Mevas offers AQIS quarantine checks for used heavy machinery before delivery to avoid this. This service we only offer in Germany and sometimes in ports in Belgium or the Netherlands. Last year, for example, we inspected a Hitachi EX1200 for a customer. If you want to know more about this, feel free to ask your question in the comments below. Or give us a call. We are happy to share our experiences.

What rules exist for biosecurity cleaning for Australia?

Biosecurity inspection for machinery entering Australia refers to a set of procedures and checks implemented by the Australian government to prevent the introduction and spread of pests, diseases, and contaminants that could harm the country’s agriculture, environment, and public health. These inspections are crucial to safeguard Australia’s unique ecosystems and protect its agricultural industry from potentially devastating threats.

Key points regarding biosecurity inspection for machinery entering Australia include:

1. Risk Assessment: Machinery that enters Australia is assessed for its potential to carry or introduce biosecurity risks. This assessment takes into account factors such as the machinery’s origin, history of use, and any potential contaminants it may carry.
2. Cleaning and Treatment Requirements: Many types of machinery, equipment, and vehicles must undergo thorough cleaning and treatment to remove soil, plant material, and other contaminants before entering Australia. This is to ensure that they do not introduce pests and diseases into the country.
3. Import Permits: Depending on the type of machinery, an import permit may be required. Permits are issued by the Australian Department of Agriculture, Water, and the Environment and outline specific conditions and requirements that must be met.
4. Inspection at the Border: Machinery entering Australia is subject to inspection at the border. This inspection is carried out by biosecurity officers who check the machinery for signs of contamination and conduct further examinations as necessary.
5. Quarantine Facilities: In some cases, machinery may be directed to quarantine facilities for further inspection, cleaning, or treatment. This is especially true if the machinery is found to be heavily contaminated or poses a higher risk.
6. Biosecurity Charges: Importers are typically responsible for the costs associated with biosecurity inspection and any necessary cleaning or treatment. These charges can vary depending on the type of machinery and the extent of the inspection and treatment required.
7. Regulations and Compliance: It is essential for importers to be familiar with and comply with Australian biosecurity regulations and guidelines to ensure a smooth entry process for their machinery.

The goal of biosecurity inspection for machinery entering Australia is to maintain the country’s biosecurity and protect its agriculture, environment, and public health. Australia has stringent biosecurity measures in place to mitigate the risk of introducing invasive species, pests, and diseases that could have detrimental effects on its ecosystems and industries.