Author: Wolfgang

Tasación, evaluacion y inspeccion de equipos mineros al nível internacional

Aquí puedes ver un vídeo sobre el tema tasación de equipos mineros.

Inspección y evaluación global de maquinaria minera

Aunque numerosas empresas ofrecen servicios de valoración de activos, solo unas pocas están realmente especializadas en la tasación de equipos mineros. Estas empresas especializadas poseen un profundo conocimiento del sector minero, comprenden la dinámica del mercado y están familiarizadas con los matices técnicos de los distintos tipos de maquinaria minera. Sin embargo, solo unas pocas cuentan con la experiencia necesaria y están preparadas para realizar inspecciones in situ en todo el mundo. Mevas es una de esas empresas, que se centra específicamente en las inspecciones y valoraciones para la industria minera.

Consultoras con experiencia en minería

Muchas consultoras generales incluyen servicios relacionados con la minería, como la valoración de equipos, dentro de su amplia cartera. Si bien esta amplitud puede ser útil en situaciones complejas, estas empresas pueden carecer de los conocimientos específicos necesarios para evaluar con precisión la maquinaria pesada de minería. A diferencia de estas empresas, Mevas se posiciona principalmente como una empresa de inspección y no como una consultora general. Hasta la fecha, el equipo de Mevas ha completado con éxito numerosos proyectos de valoración a gran escala. Conocemos muy bien las máquinas de Komatsu y Caterpillar.

Tasadores independientes y expertos técnicos

También hay tasadores independientes con las cualificaciones pertinentes y una amplia experiencia en la industria minera. Estas personas suelen aportar una sólida experiencia técnica. Mevas, por ejemplo, lleva desde 2006 prestando servicios de tasación de equipos mineros. El equipo ha llevado a cabo con éxito numerosos proyectos importantes de inspección y valoración, a menudo relacionados con grandes flotas de máquinas.

Conocimientos especializados para equipos complejos

Aunque muchos tasadores pueden ser competentes en la valoración de excavadoras estándar o de un pequeño número de camiones volquete, los equipos más complejos suelen suponer un reto. Activos como los sistemas de transporte, las trituradoras, las plantas de cribado y la tecnología de procesamiento estacionario exigen un nivel de conocimientos técnicos mucho más elevado. Aquí es donde Mevas destaca. Llame hoy mismo a Mevas para obtener ayuda.

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Who Can Perform Large-Scale Valuations of Mining Equipment?

You can see a video about valuation of mining machinery here.

Mevas – A Specialist in Mining Equipment Valuation

While numerous firms offer asset valuation services, only a select few are truly specialised in the appraisal of mining equipment. These specialist firms possess deep knowledge of the mining sector, understand market dynamics, and are familiar with the technical nuances of various types of mining machinery. However, only a handful have the necessary expertise and are prepared to conduct on-site inspections worldwide. Mevas is one such firm, focusing specifically on inspections and valuations for the mining industry.

Consultancies with Mining Expertise

Many general consulting firms include mining-related services, including equipment valuation, within their broader portfolio. While this breadth can be helpful in complex scenarios, these firms may lack the specific expertise needed for accurately assessing heavy mining machinery. Unlike such firms, Mevas positions itself primarily as an inspection business rather than a general consultancy. To date, the Mevas team has successfully completed numerous large-scale valuation projects.

Independent Appraisers and Technical Experts

There are also independent appraisers with relevant qualifications and extensive experience in the mining industry. These individuals often bring strong technical expertise to the table. Wolfgang Bühn, for instance, has been working as a mining equipment appraiser since 2006. Together with his team, he has successfully carried out many substantial inspection and valuation projects, often involving large fleets of machines.

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Specialist Knowledge for Complex Equipment

While many appraisers may be competent in valuing standard excavators or a small number of dump trucks, more complex equipment often presents a challenge. Assets such as conveyor systems, crushers, screening plants, and stationary processing technology demand a much higher level of technical understanding. This is where Mevas excels.

The Mevas team regularly inspects and values a wide range of machinery used in open-cast mining and quarrying, including:

• Stationary and mobile crushing plants
• Mining Shovels and Trucks
• Conveyor belt systems
• Gravel washing facilities
• Heavy transport machinery
• Workshop and support facilities
• Light vehicles and remaining inventories

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How Is Depreciation Calculated for Mining Equipment?

Depreciation in Mining Operations
Depreciation represents the decline in value of buildings and equipment over time due to wear and tear. In the mining sector, companies typically use either the prime cost (straight-line) or diminishing value method to calculate depreciation.

• The prime cost method allows for equal deductions each year over the asset’s effective life.
• The diminishing value method applies a fixed percentage to the remaining balance, resulting in higher deductions in the earlier years.

However, depreciation is not solely about accounting. Real-world asset values are also influenced by:

• Total operating hours
• Usage patterns (e.g., single vs triple shift operation)
• Replacement value of an equivalent machine
• Possible selling price of an equivalent machine
• Component replacement history (e.g., engines, transmissions, axles)
• Transport costs for equipment from the seller to the mine
• Repair work required at short notice to keep operations running

Such factors must be carefully considered to accurately determine the residual value of mining machinery.

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What Types of Valuation Are Common in the Mining Industry?

Three principal approaches to valuation are used in the mining sector:

1. Depreciated Value
   This method follows the declining balance formula, calculating depreciation over time for accounting purposes. As machinery ages, the rate of depreciation reduces accordingly.
2. Replacement Value
   This approach estimates the cost of acquiring a comparable machine of similar age and usage. It is especially relevant in transactions involving entire operations or in insurance settlements.
3. Fair Market Value
   This valuation is used as a negotiation basis when transferring ownership of mining concessions. It considers transport costs and logistical implications, especially if the incoming operator must procure new equipment while the outgoing one must decommission and remove theirs.

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For any type of mining equipment valuation, whether underground or above ground, it is important to know the purpose of the valuation. What is the objective and who are the negotiating partners? Please contact us if you have any questions on this topic. We will be happy to advise you and explain which options are best suited to your project.

On-site or On-screen valuation

Depending on your requirements, we will decide together with you whether an on-site inspection of the equipment is necessary or whether an assessment can be made based on the data and images you provide. For purely accounting purposes, an on-screen valuation is often sufficient to calculate the residual values. However, when it comes to complex projects such as the sale of a company or takeover by a new concessionaire, an on-site inspection is usually necessary.

Download the info about mining asset appraisal here as a PDF file.

Exciting news for equipment buyers and industry professionals! Mevas, the trusted name in heavy machinery inspections, will have an expert inspector on-site at the Caorso Auction happening on May 22-23. This is a golden opportunity for buyers to secure reliable insights into the condition of machinery before placing their bids.

Address: Via Canada snc, Caorso, Italy, 29012

Hours Office: Mon-Fri, 08:00 AM – 03:30 PM (closed on public holidays)

Why Attend the Caorso Auction?

The Caorso Auction is one of Europe’s largest gatherings for heavy equipment and machinery sales. Organized by renowned auctioneer Ritchie Bros., it features a massive lineup of excavators, loaders, dumpers, and more. For those looking to expand their fleet or acquire quality used equipment, Caorso is the place to be.

How we can help you

Purchasing heavy equipment at auctions can be a game-changer, but it also comes with risks. That’s where Mevas steps in. With more than 15 years of experience in machinery inspections across Europe, Mevas inspectors provide detailed assessments of construction machinery, cranes, and trucks. Our inspector at Caorso will be available to evaluate key aspects of the equipment including:

• Engine condition and performance
• Hydraulic system functionality
• Structural integrity
• Wear and tear on undercarriage and tires
• Cabin and operator controls

Booking an Inspection

To take advantage of Mevas’ inspection services at the Caorso Auction, early booking is recommended. You can easily schedule an inspection by contacting us directly or visiting our website. Our inspector will be on-site, ready to provide you with a comprehensive report and expert advice.

 
Join Mevas at Euro Auctions Leeds – April 30 to May 4, 2025

One of the UK’s largest heavy equipment events is just around the corner: Euro Auctions in Leeds, taking place from April 30 to May 4 at Roall Lane, Goole, DN14 0NY. With hundreds of machines going under the hammer, it’s a prime opportunity for buyers looking for quality equipment at auction prices.

📍 Location: Euro Auctions, Roall Ln, Leeds, Goole, DN14 0NY
📅 Dates: April 30 – May 4 | ⏰ Hours: Mon–Fri, 8am–5pm

Mevas Will Be On-Site for Inspections – April 30 to May 3

Our experienced inspector will be available on-site from Tuesday, April 30 through Friday, May 3 to assist buyers with independent pre-bid inspections.

Special Offer: Reduced Fees for Multiple Inspections

Need multiple inspections? We offer reduced rates for 4+ quick checks, helping you make confident buying decisions.

Why Choose Mevas?

• Independent, unbiased evaluations
• Over 20 years of experience in heavy equipment inspections
• Fast turnaround and clear reporting
• Trusted by dealers, contractors, and international buyers

Book your inspection today!

All details of the auctions available here: Euroauctions Leeds

Your Guide to Buying Used Material Handlers for Scrap Handling

Purchasing used construction machinery, especially material handlers for scrap handling, can be a smart financial move. However, ensuring you get a machine that’s reliable, efficient, and cost-effective requires careful inspection and consideration. A well-maintained used machine can serve your business for years, while a poor purchase could lead to frequent breakdowns and costly repairs. Here are some key factors to keep in mind when evaluating a used material handler.

Check the Service and Maintenance History

A machine’s service history is one of the most telling indicators of its condition. Well-documented maintenance records show that the previous owner cared for the machine, followed scheduled services, and addressed any issues promptly. Look for records detailing regular oil changes, hydraulic system maintenance, and any major repairs or replacements. A lack of service history could indicate neglect, which may lead to hidden problems down the line.

Assess the Structural Integrity

Material handlers operate in tough environments, often handling heavy and irregular loads. Inspect the structural components carefully—particularly the boom, stick, and undercarriage—for signs of excessive wear, cracks, or welding repairs. Pay special attention to pin and bushing wear, as excessive play in these areas can indicate structural weakness and the need for costly repairs.

Examine the Hydraulic System

The hydraulic system is the heart of a material handler, enabling smooth operation and precise control. Look for leaks in the hoses, cylinders, and pump connections. Check the hydraulic fluid for contamination—milky or discoloured fluid may suggest internal issues, such as water infiltration or metal shavings from component wear. A test run should reveal whether the hydraulics operate smoothly without jerky movements or delays. Experienced inspection companies can run a so-called Oil Sampling with a certified lab to examine the containments for unusual wear in components.

Evaluate the Engine Condition

A well-functioning engine is critical for performance and efficiency. Start the machine and listen for any irregular noises such as knocking, excessive rattling, or hissing sounds. Watch for excessive smoke, which can indicate fuel system problems or worn engine components. Low power output or slow acceleration can be warning signs of deeper issues. Additionally, check for any oil or fuel traces in coolant and for coolant in oil. A too high oil level in engine sump can be a hint for problems.

Inspect the Tires or Tracks

The undercarriage is often one of the most expensive components to repair on heavy machinery. If the machine has tracks, look for wear on the sprockets, rollers, and track links. If it has tires, ensure they have sufficient tread depth and no major damage.

Test the Electrical and Control Systems

Test the electrical system to ensure that all lights, gauges, and switches are working properly. Any flickering displays or non-responsive controls may signal wiring or sensor malfunctions, which can be expensive to diagnose and fix. If a generator is fitted it should be checked for functionality.

Consider the Attachments and Accessories

Many material handlers come with specialized attachments, such as grapples, magnets, or shears. Ensure that any included attachments are compatible with the machine and in good working condition. Hydraulic quick couplers should operate smoothly, and hoses should be free from leaks or excessive damage. It is always recommended to check a material handler with the tool attached.

Run a Test Operation

Whenever possible, operate the machine under real working conditions. Test the boom and stick movements, rotation, and lifting capacity. The controls should be responsive, with no delays or hesitations. Pay attention to unusual vibrations or noises, as these could indicate hidden mechanical issues. Do not forget to check the hydraulic cab raiser and try several full 360° swing operations including the swing brake test.

Final Thoughts

Buying a used material handler for scrap handling can be a cost-effective solution if approached with diligence. A thorough inspection and careful evaluation of the machine’s condition, combined with verifying its service history and legal documentation, can help you make a smart investment. If you’re unsure about any aspect of the inspection, consider working with a professional machinery inspection service such as MEVAS to ensure you get the best value for your money. Consider investing some money in a professional inspection to avoid buying a machine with hidden problems.

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Just spread the word, help your contacts make informed decisions, and get paid for every referral. It’s that simple! 💰

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• Talk to your contacts about our pre-purchase inspections
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• After they ordered and paid an inspection you will earn a commission

(Invoice or bill is required from you with banking details)

What commission do we pay?

• Standard Earthmoving machinery, first lead: 200$
• Road trucks, concrete pumps, tractors: 160$
• Each additional inspection ordered by your customer / friend with your help: 50$
• Caterpillar TA1-Plus inspection including oil analysis: 250$
• Crane inspection (mobile or crawler cranes above 60 to capacity) 250$

Reduce replacing cost for undercarriage components

Listen to this article

When it comes to maintaining tracked construction machinery like excavators and bulldozers, the undercarriage is one of the most expensive and essential components. A well-maintained undercarriage not only ensures smooth operations but also significantly reduces costly downtime and repairs. In this newsletter, we delve into critical issues, from track adjustment failures to choosing the right track shoes and measuring undercarriage wear.

The Hidden Costs of Incorrect Track Adjustment

Improperly adjusted tracks are a common issue in tracked excavators, track-loaders and bulldozers, often overlooked by operators. Tracks that are too tight accelerate wear on bushings, sprockets, idlers, and even the bearings in final drives. This can lead to premature failure of components, despite other parts, like rollers and track links, still being in good condition.

For excavators in the 15–30-ton range, track sag is critical and should generally be set between 3-5 inches (7-10 cm). A track chain that is too tight not only shortens component life but also risks cracking bushings. Too lose chains can to jump over the idler centre rim or the sprocket during drive operation. On uneven ground track rollers are no longer guiding the chain in line.

Tip: Always refer to your machine’s manual for specific guidelines or consult your local dealer for advice.

Corrosion and Seized Track Links: A Costly Problem

A significant issue seen in hydraulic excavators is the seizing of track links due to water—especially saltwater—penetration. Damaged seals allow water to corrode internal components, locking bushings and pins in place. Attempts to restore mobility with oil or grease are rarely successful, as the damage is inside the pins and bushings, not the visible chain links.

For minor issues, riding the machine on hard surfaces may restore some mobility. However, in severe cases, replacement of the chain is unavoidable.

Finding the Right Track Shoe Width: Striking the Balance

Choosing the correct track shoe width is a balancing act. Narrow track shoes provide sometimes better traction but may cause the machine to sink into soft ground. Narrower machines are easier to transport. On the other hand, extra-wide track shoes (LGP) distribute ground pressure more evenly but introduce increased torsion forces on drive components when operating on uneven terrain, leading to faster wear.

For every application, it’s essential to select the track shoe width that minimizes both wear and operational inefficiencies. Consult an expert or dealer to determine the best fit for your machine’s typical working environment.

Precision Measurement: Know Your Undercarriage’s Remaining Life

The undercarriage accounts for a substantial portion of a machine’s value—take the Caterpillar D8T, for example, where the undercarriage value can reach €25,000. Misjudging the remaining life by even 30% can result in a financial loss of €7,500.

Proper measurement ensures accuracy. MEVAS-trained inspectors recommend using tools like:

• Track Gauges: To ensure the correct track spacing.
• Ultrasonic Gauges: For measuring track link and bushing thickness.
• Track Roller Callipers: To assess roller diameter and wear.
• Shoe Height Gauges: To check track shoe condition.
  By using these tools, operators can determine wear levels and predict replacement timelines accurately.

Avoiding Roller Sequence Errors

In Caterpillar or Komatsu XL bulldozers, proper track roller sequencing is crucial. These machines typically use a mix of single and double flange rollers, but inexperienced fitters sometimes install rollers in the wrong sequence—or worse, entirely single-flange rollers. Such errors can compromise performance and accelerate wear. Always cross-check roller configurations with manufacturer specifications.

Key Inspection Points for Used Machines

When inspecting a used bulldozer or excavator, pay special attention to:

• Undercarriage Components: Measure track shoes, sprockets, track links, bushings, and idlers.
• Equalizer Bar and Bearings: This component connects undercarriage frames and facilitates horizontal movement. Any excessive play in joints and pivots can indicate expensive repairs ahead.

Thorough inspections can save thousands in repair costs. If you’re unsure about measurements or need a detailed guide, MEVAS offers step-by-step instructions and video tutorials.

Maintaining Undercarriage Health: Best Practices

1. Monitor Track Tension Regularly: Adjust sag based on manufacturer recommendations.
2. Choose Track Shoes Wisely: Match the width to the terrain for optimal performance.
3. Schedule Regular Measurements: Use proper tools to assess wear and address issues proactively.

Ready to Inspect Your Equipment?

Whether you’re maintaining your fleet or evaluating a used machine, focusing on the undercarriage will save you time and money. Need help? Contact our experts to get tailored advice and inspection services.

By taking these proactive measures, you’ll not only protect your investment but also ensure the long-term efficiency of your tracked machines.

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Follow our Newsletter about Used Machinery Inspection Topics

The Mevas Newsletter about Used Machinery Inspection Topics can also be found on the Plant & Equipment Website. If you are a LinkedIn user there is even more content about Used Equipment Inspections. But you must be logged in to read it.

• A Safer Way To Purchase Used Heavy Equipment
• Operating Heavy Machinery in High Ambient Temperatures
• Is It Safe To Buy Used Construction Equipment From China?
• Global Crane Inspection And Valuation Services
• Extend the Life of Your Tracked Machinery’s Undercarriage: Maintenance Tips and Insights
• Avoid Overpaying! Here’s How to Verify Operating Hours on Construction Equipment
• How to Become a Heavy Equipment Inspector [2025]: A Step-by-Step Guide from MEVAS
• How to Respond to Hydraulic Pump Failure in Heavy Machinery: A Step-by-Step Guide
• Pros and Cons of Buying Construction Machinery at Auction: Inspection and Risk Tips
• Why Downgrading Engines and Removing DPFs in Construction Machinery is Risky
• Oil Diagnosis in Construction Machinery: Essential Analysis for Equipment Maintenance
• Avoid Costly Mistakes When Buying Used Construction Machinery Abroad
• Buying A Used Crusher, Where And Which One?
• Buying Used Excavators: What To Inspect And How
• Buying Used Construction Equipment: Expert Tips for a Safe Purchase
• Inspections of Used Equipment Around the World
• Global Used Machinery Inspections