Why Choose Us
Professional Technical Team
Relying on the mature experience of more than 40 years of engineering machinery manufacturing of our team, Laigong has established and passed the ISO9001 international quality system certification, ISO14001 environmental certification, CE, EAC, SGS, and has independent research and development capabilities of high-tech products.
Our Products
Our main products range are mini wheel loader, mini excavator, self-loading mixer, dumper and tricycles. To fit the demands of our dealers and customers, we also extended our product range to CE wheel loader, telescopic loader, backhoe loader, big excavator in 2020.
Production Market
As a famous brand and top 5 sales quantities in our industry, Laigong products served over 200,000 users both at China and abroad. Till end of 2023, Laigong has over 400 dealers in China domestic and over 80 dealers in Russia, South East Asia, Central Asia, Europe, South America, Africa etc. The annual export of machinery exceeds 40000 units.
Excellent Customer Service
We provide long-term consultation as well as warranty by our highly competent and skilled technical personnel. Consistent administration of users' files, and friendly, patient and attentive technical consultancy is our promise. Users' training sessions and symposiums are conducted on a regular basis.
What is Medium Excavator
Mid-size excavators, often referred to as medium excavators are typically crawler excavators with weights ranging between 15 to 34 tons. These excavators are versatile machines that balance the power of larger excavators with the maneuverability of smaller ones. Mid-size excavators provide an ideal balance of power and maneuverability, making them versatile tools for a wide range of tasks such as digging, trenching, and demolition. Their compact size allows them to operate effectively in confined spaces, while still delivering the strength required for demanding jobs.
Advantages of Medium Excavator
Cost-Effectiveness Compared to Larger Machinery
One of the primary benefits of using a Medium Excavator is its cost-effectiveness. While larger excavators offer significant power and capabilities, they come with higher purchase and operational costs. Medium Excavators strike a balance between performance and affordability. They provide ample power for most urban construction tasks without the hefty price tag associated with larger machinery. Additionally, their lower fuel consumption and maintenance costs contribute to overall savings.
01
Fuel Efficiency and Reduced Emissions
Medium Excavators are designed with fuel efficiency in mind, making them an environmentally friendly option for urban construction. Their engines are optimized to consume less fuel while delivering high performance, resulting in lower operating costs and reduced carbon emissions. This is particularly important in urban areas where air quality regulations are stringent. By using Medium Excavators, construction companies can comply with environmental standards and contribute to sustainability efforts.
02
Flexibility in Handling Multiple Tasks with One Machine
The versatility of Medium Excavators means that they can handle multiple tasks with a single machine, reducing the need for a fleet of specialized equipment. With the ability to switch between various attachments, such as buckets, hydraulic breakers, and augers, these excavators can perform a wide range of functions, from digging and trenching to lifting and grading. This flexibility not only streamlines operations but also reduces equipment costs and storage requirements.
03
Improved Productivity and Efficiency on Job Sites
Medium Excavators enhance productivity and efficiency on construction sites. Their compact size and advanced hydraulic systems allow for precise and quick movements, making it easier to complete tasks in confined urban spaces. The ability to perform multiple functions with one machine means that projects can progress without delays caused by waiting for different equipment. Moreover, the ergonomic design and intuitive controls of Medium Excavators reduce operator fatigue, allowing for longer working hours and improved job performance.
04
Types of Medium Excavator
15 Ton Heavy Excavator
Comfortable cab, bright career, equipped with aviation seats, simple operation station, help you drive easily, improve work efficiency! The standard bulldozer blade can level the land, backfill the earthwork, increase the stability of the whole machine, adjust up and down, and have good passability!
12 Ton Weight Excavators
Cooperate with major well-known brands, quality is guaranteed, work is stable, convenient and labor-saving. The new enlarged cab, new interior design, wide vision, spacious and bright, humanized front structure, equipped with adjustable suspension seats, all systems can be equipped with air conditioning and heating.
23 Ton Weight Excavator With Cummins Engine
The raw materials and production process of the products are strictly controlled, the price is fair, it is your best choice, and integrity is our aim!Brand engine, brand power system, focus on quality, high horsepower, long service life. Comfortable cab, open career, spacious and bright, aviation seats, simple operation station, help operation and easy driving.
Cummins Engine 18 Ton Excavator
It is equipped with a high-strength chassis and working devices of heavy machinery, optimized and upgraded hydraulic system, turbine engine of major brands, which can be widely used in various working conditions. There are many years of dealers, affordable prices, high turnover! Accessories rich and diverse, to meet the procurement needs.
Application of Medium Excavator




Construction Sites
Medium excavators are a common sight on construction sites, where they are used for a wide range of tasks. One of the primary uses of medium excavators in construction is for digging and excavating. Whether it's digging trenches for utilities, foundations for buildings, or clearing and leveling the ground, medium excavators are indispensable for the initial stages of any construction project. Their ability to quickly and efficiently move large amounts of earth makes them an essential piece of equipment for any construction site.
In addition to digging and excavating, medium excavators are also used for material handling on construction sites. With the right attachments, such as buckets, grapples, and hammers, medium excavators can easily move heavy materials, break up concrete, and perform a wide range of tasks that would be impractical or impossible with manual labor alone. This makes them incredibly versatile machines that can handle multiple aspects of a construction project.
Another important application of medium excavators on construction sites is in site preparation. Before any construction can begin, the site needs to be properly prepared, which often involves clearing land, leveling the ground, and creating access roads. Medium excavators are essential for these tasks, thanks to their ability to quickly and efficiently move earth and handle a wide range of site preparation activities.
Agricultural Fields
In addition to construction sites, medium excavators also have a variety of applications in agricultural settings. One of the primary uses of medium excavators in agriculture is for land clearing and preparation. Whether it's clearing land for new crop fields, preparing land for irrigation systems, or creating drainage ditches, medium excavators are essential for getting the land ready for agricultural use.
Medium excavators are also used for a wide range of tasks related to maintaining agricultural land. From digging irrigation ditches and trenches to clearing ditches and waterways, medium excavators play a crucial role in ensuring that agricultural land is properly maintained and managed. Additionally, medium excavators can be used for tasks such as clearing brush, removing stumps, and maintaining drainage systems, all of which are essential for keeping agricultural land in optimal condition.
Another important application of medium excavators in agriculture is for material handling. With the right attachments, such as buckets and forks, medium excavators can handle a wide range of materials, from moving hay bales and feed to clearing brush and debris. This versatility makes medium excavators an essential piece of equipment for various agricultural tasks.
Road Construction
Medium excavators are also widely used in road construction, where they play a crucial role in a wide range of activities. One of the primary applications of medium excavators in road construction is for digging and excavating. Whether it's excavating trenches for utilities, clearing and leveling the ground, or creating embankments, medium excavators are essential for the initial stages of any road construction project.
In addition to digging and excavating, medium excavators are also used for material handling on road construction sites. With the right attachments, such as buckets, compaction wheels, and hydraulic breakers, medium excavators can handle a wide range of tasks, from moving and compacting earth to breaking up concrete and rock. This versatility makes them an essential piece of equipment for any road construction project.
Another important application of medium excavators in road construction is for building and maintaining drainage systems. Medium excavators are used for tasks such as digging trenches for drainage pipes, creating culverts, and maintaining ditches, all of which are essential for ensuring proper drainage on roadways. Additionally, medium excavators can handle a wide range of tasks related to maintaining roads, such as clearing debris, repairing pavement, and creating access roads.
Excavator Tracks
The tracks of the excavator, typically made with steel-reinforced rubber, move the machine. Some excavators are wheeled but function similarly to those with tracks.
Track Frame
The track frame is where the excavator tracks attach to the undercarriage, functioning similarly to axels.
Track Pad
Track pads can help prevent excess noise, vibration and damage, as well as provide better traction during operation.
Track Chains
Track chains are what allow an excavator to move efficiently. They function similarly to bicycle chains in that they’re made up of connected flexible links.
Track Shoes
If you imagine the tracks of an excavator, the track shoes are the individual parts of the track that dig into the ground and pull the excavator along.
Track Bolts
Track bolts link each track shoe together to form the entire track.
Rock Guards
Rock guards are exactly what they sound like — they attach to the tracks of your excavator to protect the machine from debris and stray objects.
Sprockets
Sprockets are the mechanisms that run between the excavator track chain links. They behave like a giant bicycle sprocket, moving the chain along to propel the machine.
Rollers
Rollers are the metal wheels on an excavator undercarriage used to align the chains and move them between the sprocket and idler. There are two sets of rollers — bottom and top — to facilitate chain functionality.
Idlers
Bigger than rollers, idlers are large metal wheels within the undercarriage that help guide the excavator tracks. Idlers are the final mechanism that keep tracks running smoothly, along with the rollers and sprockets.
Main Controls
This will vary depending on the machine, but this is your mission control of the excavator. This is where you’ll find the excavator’s basic controls, steering mechanisms, safety measures and more.
ROPS
ROPS stands for “rollover protective structure” and is an important safety feature. It’s meant to protect the operator in the event of a rollover.
Counterweight
The counterweight does exactly what the name implies — it counterbalances the excavator when digging, providing leverage and preventing the excavator from tipping.
Engine
The heart of the excavator, the engine is typically housed near the cab so it’s easy to access for maintenance. It’s typically powered by diesel fuel.
Hydraulic Fluid Tanks
As many excavators are controlled with hydraulic mechanisms, the tanks themselves are housed in the cab.
Fuel Tank
Exactly what it sounds like, this is where the excavator’s fuel (as mentioned above, typically diesel) is stored.
Main Control Valve
The main control valve connects the engine and the hydraulic mechanisms, controlling oil pressure and powering hydraulic devices like the arm and boom.
Boom
The excavator boom is the front part that’s attached to the cab itself and holds the arm.
Arm
Sometimes referred to as the dipper or stick, the excavator arm is attached to the boom and holds the bucket. Together, the arm and boom can manipulate the bucket and get everything into position.
Bucket
The bucket is the digger on the end of the arm, responsible for all your earthmoving needs.
Cylinders
There are typically three types of cylinders on an excavator: boom, arm and bucket. The cylinders connect between each section and are responsible for articulating each. For example, the bucket cylinder connects between the arm and the bucket, and helps move the bucket back and forth.
The Difference Between Mini Excavators and Medium Excavators
Size
The mini excavator is a small-size excavator, while a medium excavator is a medium-size excavator. The large excavator is a giant excavator. Each of the three excavators is different in size, making them unique in the type of construction projects they can handle.
Digging force and depth
The small excavator has a digging force of 16kN and a depth between 2290mm to 4020 mm. The medium excavator features a digging force of 85 kN to 263kN and a digging depth of 5538mm to
7423 mm. On the other hand, the large excavator has a digging force of 284kN to 480kN and a digging depth of 7337 mm.
Space
The mini excavator is compact in shape, which makes it suitable for small available space. The medium excavator takes more space than the mini excavator but not as much as the large excavator. The giant excavator has large-bodied characteristics, which make it need ample storage and operating area.
The Considerations for Buying Medium Excavator
Size Matters
One of the first things to consider when choosing a medium excavator for sale is the size of the machine. Medium excavators typically range in size from 15,000 to 45,000 pounds, and the right size for you will depend on the specific requirements of your projects. If you typically work on smaller-scale projects or in tight spaces, a smaller medium excavator may be the best choice for maneuverability and ease of operation. However, if you often tackle larger-scale projects with heavy-duty excavation needs, a larger medium excavator may be more suitable for your needs.
Power and Performance
In addition to size, the power and performance of a medium excavator are also crucial factors to consider. When searching for a medium excavator for sale, it's essential to evaluate the machine's engine power, hydraulic capabilities, and digging force to ensure it can handle the demands of your projects. A medium excavator with higher horsepower and hydraulic efficiency will be more productive and efficient, allowing you to complete jobs faster and with better results.
Features and Attachments
Another important aspect to consider when choosing the right medium excavator is the range of features and attachments available. Some medium excavators come equipped with advanced technology such as GPS systems, telematics, and remote monitoring capabilities, which can improve overall performance and productivity. Additionally, the availability of a variety of attachments like buckets, hammers, and thumb attachments can enhance the versatility of the excavator and allow it to tackle a wide range of tasks.
Quality and Reliability
When investing in a medium excavator for sale, it's crucial to prioritize quality and reliability. Researching the reputation of different brands and models, reading customer reviews, and evaluating the overall construction and durability of the machine are all key steps in ensuring that you are making a sound investment. A reliable medium excavator will not only provide consistent performance but also require fewer repairs and maintenance, saving you time and money in the long run.
8 Maintenance Tips for Medium Excavators
Know Your Excavator
The most critical part of excavator maintenance is understanding your equipment. Although many excavators perform similar functions, their builds and components may differ significantly. Studying the excavator's manual and completing the required equipment and operator training is the first step in mastering this knowledge.
Perform Routine Inspections
Inspections for excavators are critical for safety and compliance. Daily assessments help your operators check for issues that can lead to more significant problems and repairs down the road. In addition, OSHA requires that annual equipment inspections be performed by a qualified professional.
Check Air & Fuel Filters
Clean, unclogged air and fuel filters allow engines to operate more powerfully and efficiently. Operators can check air filters visually for dirt and debris while ensuring that fluid moves freely through the fuel filter. Annual inspections are the perfect time to inspect and replace these components if needed.
Drain Water Separator
An excavator's water separator catches water and other contaminants in the fuel line or tank. Many of these components have a ring that indicates the amount of water inside them. Quick draining involves unscrewing the valve on top of the separator and allowing the moisture to escape.
Create A Prestart, Start & Shutdown Checklist
An essential part of your daily inspection routine involves creating a detailed checklist to follow before starting the excavator, during startup, and after shutdown. A thorough prestart assessment requires checking all the equipment's fluids while looking over the excavator for visual damage. Operators should perform the startup portion of the inspection after allowing the engine to idle for five to ten minutes, checking the gauges, and listening for any usual noises or vibrations.
Log Service Records
Keeping a detailed, handwritten log of each maintenance task performed on your equipment and tracking upcoming inspections saves your company time and money over the long haul. A physical logbook is vital for preventing confusion between teams, especially for larger fleets.
Maintain Excavator Undercarriages
Daily cleaning and monitoring of an excavator's undercarriage prevents buildup caused by excessive dirt and debris. If equipment isn't cleaned regularly, this buildup will accelerate wear and tear on critical components, particularly in colder climates. Excessive buildup can also add weight to the excavator, causing decreases in fuel economy.
Check Track Tensioning & Drives
Correct tensioning ensures optimal performance of your track drive motors and other primary components. If tracks are too tight, it will accelerate the wear and loose life out of the links. Loose tracks can accelerate wear on the undercarriage's vital parts, like the sprockets and idler bearings. Cleaning the area around the drive motor helps ensure optimal track tension.
Our main products range are mini wheel loader, mini excavator, self-loading mixer, dumper and tricycles. To fit the demands of our dealers and customers, we also extended our product range to CE wheel loader, telescopic loader, backhoe loader, big excavator in 2020. As a famous brand and top 5 sales quantities in our industry, Laigong products served over 200,000 users both at home and abroad. Till end of May, 2020, Laigong has over 400 dealers in China domestic and over 20 dealers in Russia, South East Asia, Central Asia, Europe, South America, Africa etc.


Ultimate FAQ Guide to Medium Excavator
As one of the leading medium excavator manufacturers and suppliers in China, we warmly welcome you to buy durable medium excavator for sale here from our factory. All customized products are with high quality and competitive price.
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