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On December 8, the HT12 small excavator was installed in the Hightop Group Industrial Park and will be shipped to the UK. At present, Hightop Group's excavator series products have obtained EU CE certification, ISO quality system certification, TVU certification, etc. The HT12 excavator is easy to operate and reliable in quality. It is widely used in construction projects such as highways, railways, construction, hydropower, ports and mines. Rugged mountain roads, muddy, cement roads and various terrains can be easily dealt with. It is also suitable for indoor damage, basement and other places. It has the characteristics of simple operation and easy learning, low maintenance and use cost, and good equipment stability. It is a good helper for the majority of farmers' friends.  HT12 excavator features 1. Lightweight operation, convenient operation device, in line with a new generation of ergonomic work environment. 2. The Changchai engine and small agricultural excavator carried by the pipeline trench mini-crawler excavator have the characteristics of strong power, low noise, low emissions, low fuel consumption, and convenient maintenance. 3. The reinforced crawler effectively enhances the wear resistance of the crawler and prolongs the service life of the crawler. 4. The hydraulic management layout of the agricultural orchard mini excavator is reasonable, which greatly facilitates the inspection and maintenance of the hydraulic system. 5. The high-accuracy instrument is the intelligent monitoring steward of the excavator. HT12 excavator performance 1. The small excavator has excellent work efficiency and cost-effective; 2. The standard configuration of the excavator is a bulldozer that can level the site, backfill the earth, and increase the stability of the whole machine; 3. The orchard excavator is simple to operate, compact and flexible, and convenient to transport. It can work in a small area. It is especially suitable for orchards such as kiwi, vineyards, oranges, navel oranges, digging trenches, fertilizing, weeding, etc.; 4. The agricultural excavator has the functions of digging, crushing, hook cleaning, drilling, and bulldozing. The accessories can be quickly replaced, and the utilization rate of the machine is greatly improved.

Iron filings are produced in the hydraulic system of small excavators. This is a common phenomenon in some excavators, so let's talk about it.  Iron filings were found in the hydraulic system of a small excavator. The tank and pipes must be cleaned quickly, and a strong magnet must be placed in the hydraulic tank. There may be iron filings on the radiator and other places. Even if the radiator is replaced, cleanliness cannot be guaranteed. How to deal with it? I want to install a magnet filter on the front end of the big pump. I don't know if it works?  The approximate method to determine the iron filings in the hydraulic system of a small excavator: The manufacturing cylinder is shiny because it does not lose its luster at low speeds. Hair is a pump or motor bearing created by high-speed rotation and passivation. Judging the situation: If it is a relatively large iron filings and is easily found in the fuel tank, then the cylinder may be damaged. If there is no major problem with the filter element of the hydraulic system, the valve and pump itself may not produce iron filings. However, radiators and hard tubes are also possible. Of course, this will only happen when new cars or new parts are replaced.  The pressure on the return line is low, and a filter element with higher precision can be selected. If it is not in the fuel tank, it seems that there is no relationship between the magnetic properties. Generally, the flow rate of the hydraulic oil in the pipeline is very high, and it is difficult for general magnets to absorb it.  1. The engine water temperature is very high. After removing the thermostat, the small hole under the thermostat seat blocks the cork to prevent recirculation of hot water.  2. The gear pump separates the sides to form a vacuum as the suction port. The volume on the extrusion side becomes smaller, and pressure is generated as a discharge port. The back of the 3-shaped valve plate always faces the discharge port. The valve plate generates an axial force squeezing the gear under the pressure of the pressurized oil to enhance the seal. It also has the effect of automatically compensating the pressure after wear.  3. The smallest core of the driver's handle is mainly used for micromanipulation.  4. Individual parts are often blocked. Check whether the connecting pipe is caused by internal peeling. 5. The center of the distributor lever spring is thinner than the outer ring, and the outer ring should be the stroke buffer at the end of the stroke. The intermediate sleeve limits the stroke of the rod. 6. Approximate judgment of iron filings: 1. The light is cylindrical, and its luster is not lost due to its low speed. 2. The iron filings are produced by pumps or motor bearings because of high-speed rotation and dullness. 7. The second pilot pressure is normal, but the action is slow. The hammer should consider whether the spool in the pilot handle is dirty to limit its stroke, so that the stroke is reduced (even if the operation is maximum), the pressure is sufficient, but the flow is insufficient. If the force on the valve stem is not enough, the valve stem is not open enough, and the related actions will be very slow. 8. Joint action is slow or motionless. The relevant pilot secondary pressure is lower than 20KG.

In use, small rollers often fail to start due to some reasons. Inability to start refers to the difficulty of starting the engine in the process of starting the engine of the small roller, which causes difficulty in starting the engine and does not ignite. In the process of construction and use, the progress is particularly affected, and it will cause a lot of investment losses. The incorrect use method will also consume the life of the body. So how to solve the problem of difficulty in starting? Let me explain it in detail below. The main reasons that affect the start-up difficulty and slow walking of small rollers are as follows: ►Oil, when the temperature exceeds minus 10℃, it is recommended to replace the 10w-30 oil, because 30 oil will be thinner and not too viscous, it can increase the engine cold start speed, so that the engine can be ignited smoothly. Some people are worried to ask: Will the engine life be affected by the thinning of the engine oil, or will the engine be damaged? The answer is no. The engine oil pressure has nothing to do with the viscosity of the engine oil. Many people I mistakenly think that if the oil is thicker, the oil pressure is good, and it is good for the engine. If the oil is thin, the engine oil pressure will be low, which will damage the engine. In fact, this is a big misunderstanding. As long as it is genuine oil, there is no organic oil. The level of pressure will be related to the viscosity of the oil. Engine oil, just like the blood of the human body, is very important! So at any time, it is recommended that you use the authentic engine oil that meets the season correctly in different seasons. Protect and extend the life of the engine. ►Starter. Before the winter comes, the starter must be maintained. Replace the cover, carbon brushes and some worn-out things. Clean the rotor. Because the weather is cold and the engine oil is thicker when the car is cold, the starter The workload is much higher than in the warm season. Maybe it’s okay to use it in normal times, but it won’t work in winter. Take care of it and spend a small amount of money to ensure that the starter can exert better power and help you get started! ►Battery (that is, battery). The battery voltage is insufficient. In the cold winter weather, the energy of the battery is not completely volatilized. Therefore, every winter is a better time for the battery to sell. Of course, if you have the conditions, Drivers, friends may wish to find a thick quilt to wrap the battery or make a simple insulation measure. Although it may not be effective, at least it can extend the battery life. If you are not too troublesome, you can remove the battery and put it in. In a warm room, it is better to install it when you use it, but now most people still choose to directly replace the battery with a new one.

1. Rubber track and chassis  The rubber track on the small excavator is different from the steel track on the large machine, and it is suitable for grass and driveway. Many times, users will not check the wear of the rubber track at close range, just like steel rails. As a result, only the wear of the rubber track is observed, and there is not much wear on the sprockets and idlers, the use of cracks and edge wear on the rubber track can be estimated, and I like to look at the tire when the tire is worn. The same pattern. Due to the different usage and soil conditions, the service life of the rubber track is also very different. Generally speaking, its average life span is about 2,000 hours. However, if you work in a rocky or abrasion-prone environment, the service life will be halved. On the contrary, in a better environment, the working life will be doubled. When the user checks the track and chassis, don't forget to drive again to check the oil level and cleanliness. This part is easily overlooked and usually leaves very little oil. If the oil level is already low and there is water or other things, it will cause more trouble.  2. Be wary of welding on the body Carefully observe the cracks on the excavator and the weld traces left by the original manufacturing. These things indicate that the machine has been overused. Another good method is to use a straight plate on the back arm and stick it to see if there is any misalignment or deformation. Pay special attention to additional steel plate repairs. There may be some scratches and dents on the phone, but if there are too many patches on the machine, it may mean that the device has been used for a long time.

Acoustic imaging technology is a method of reconstructing the sound source image using the measured sound field information. If the acoustic imaging map is fused with the real object image, a graph of the noise state of the measured object is formed that can be visually analyzed. The color and brightness on the image represent the strength of the regional noise. Therefore, the acoustic imaging is a preliminary judgment of the noise source. A convenient way. The sound field information measurement in acoustic imaging technology mainly includes two methods: sound intensity measurement and microphone array measurement. The sound intensity measurement method is to first measure the sound intensity level of each point on a closed surface, and then obtain the sound power from the sound intensity level. Since the sound intensity is a vector, the measured value is mainly affected by the sound source perpendicular to the plane of the test probe. Therefore, it can effectively eliminate the interference of background noise and surrounding sound sources in the near-field measurement, and can ensure high sound test quality. The microphone array is a system composed of a set of microphones placed in a certain geometric structure. It can receive signals from different spatial directions at the same time. By comparing the phase difference of the noise signal to each microphone, the position of the sound source is determined according to the phased array principle. . The microphone array has the functions of filtering and denoising, sound source localization, etc., which greatly improves the quality of sound signal processing and the accuracy of sound source localization. At the same time, the multi-channel recording mode of the sound array provides for further processing of noise signals (such as noise signal separation) Condition.

Small Roller Transmission Maintenance – A Practical Guide for Operators If you own or operate a small vibratory roller, the transmission system is one of the most critical components to maintain. Skip the routine checks, and you're looking at costly repairs and unplanned downtime. This guide walks you through the essential maintenance and oil change procedures – in plain language, no jargon. Why Transmission Maintenance Matters The transmission system transfers power from the engine to the wheels and drum. It works under heavy loads, in dusty conditions, and often in high temperatures. Over time, oil degrades, contaminants build up, and seals wear out. Regular maintenance keeps everything running smoothly and prevents sudden breakdowns on the job site. Most transmission failures in small rollers are preventable. A few minutes of routine checks can save you thousands in repair costs. Before You Start: Key Principles Whether you're checking oil levels or doing a full oil change, follow these basic rules: Check oil when the machine is stopped. Running components splash oil around, giving you a false reading. Always check with the engine off and the machine on level ground. Warm up the oil before draining. Run the roller for a few minutes to heat the transmission oil. Hot oil flows faster and carries out more contaminants. Turn off the engine before changing oil. If you need to work underneath, block the wheels with chocks for safety. Keep everything clean. Wipe down the area around the oil plug before removing it. Dirt that falls into the system becomes abrasive. Clean the plug before reinstalling. Any debris on the plug will contaminate the new oil. Fixed Transmission Components – Oil Level Check & Oil Change Fixed transmission parts include the transfer case, gearbox, and drive axle center drive. These components have a drain plug at the bottom (often magnetic) and an oil level hole or dipstick on the side. How to Check Oil Level Park the roller on level ground with the engine off. Remove the oil level plug or check the dipstick. Oil should be at the marked level or just reaching the bottom edge of the level hole. If low, add oil through the fill port until it reaches the correct level. How to Change the Oil Run the roller briefly to warm the oil, then shut off the engine. Remove the fill cap or level plug first, then the drain plug. Let the old oil drain completely into a suitable container. Clean the magnetic drain plug (remove any metal shavings). Reinstall the drain plug securely. Fill with fresh oil through the fill port until it reaches the level hole or dipstick mark. Reinstall the level plug and fill cap. Run the machine and check for leaks. Rotating Housing Components – Oil Check & Change Rotating components include the axle planetary reducers and the vibratory exciter oil chamber. Because these housings rotate, the procedure is different. How to Check Oil Level Rotate the housing until the fill port is at the highest position. Open the fill port and check if oil reaches the edge. If low, add oil through the fill port until it reaches the level hole. How to Change the Oil Rotate the housing so the drain port is at the lowest position. Remove the drain plug and let the oil drain completely. Clean the plug and reinstall it. Rotate the housing so the fill port is at the top. Fill with fresh oil until it reaches the level hole. Side Drive & Chain Maintenance The side drive chain is the final drive component for many small rollers. It handles heavy loads and takes冲击 from starting and braking. Lubricate before each shift. Use an oil can to apply oil to the gears before starting the roller. Clean weekly. Remove dust and debris from the chain and gears at least once a week. Inspect regularly. Check for wear, stretching, or damage. Replace if necessary. Recommended Oil Types Component Recommended Oil Change Interval Transmission / Gearbox SAE 90 gear oil Every 3 months (clean with kerosene first) Vibratory Drum SAE 30 diesel engine oil (CD grade) Every 1000 hours Hydraulic System Anti-wear hydraulic oil ISO VG 68 Every 6 months Walking Bearings Calcium-based grease Every 20 days Frequently Asked Questions How often should I change the transmission oil in my small roller? The transmission should be cleaned and oil changed at least once every quarter (every 3 months). Always do this with the oil warm – run the machine for a few minutes before draining. What oil should I use for the transmission? Use SAE 90 gear oil for the transmission. The vibratory drum uses SAE 30 diesel engine oil (CD grade), and the hydraulic system uses anti-wear hydraulic oil ISO VG 68. Check your machine's manual to confirm. Why does the oil need to be warm before draining? Warm oil flows more easily and carries more suspended contaminants out of the system. Cold oil is thicker and leaves sludge and debris behind. What's the most common mistake in transmission maintenance? Not cleaning the area around the oil plug before removing it. Dirt and debris can fall into the open port and contaminate the new oil, causing premature wear. Can I just top up the oil instead of changing it? Topping up is fine between changes, but it doesn't replace a full oil change. Over time, oil breaks down and accumulates contaminants. Regular full changes are essential for long-term reliability. Need a Small Roller or Replacement Parts? If you're in the market for a new small vibratory roller or need maintenance parts, we can help. Browse our road roller lineup or contact us with your questions. 📧 Email: info009@hightopgroup.com📞 WhatsApp: +86 181 6205 2962

Under the new situation, urbanization-related policies and regulations have brought new opportunities to the small excavator industry. At the same time, the increase in industry costs has also caused mixed joys and worries for local board companies, and they continue to face new challenges. Today we come to understand the current situation of the small excavator industry and analyze the future development direction. A popular sentence in officialdom is "policy at the top and countermeasures at the bottom". In conventional understanding, this sentence is too derogatory and directly refers to the phenomenon of "policy" violations. But if it is adjusted to "policy at the top and decision-making at the bottom", it is very much in line with the development status of China's small excavator industry over the past few years. It will follow the trend of international or national policies and change the rudder in time. The promulgation of the policy is in line with the interests and will of the majority of people in this country or region, so all individuals or companies that survive and develop in this society must strictly abide by it. From the perspective of green and sustainable development, relevant policies are issued for the more standardized and healthy development of the small excavator industry, and they are all beneficial to the industry. Therefore, small excavator companies need to face up to the possibility of companies in the implementation of the policy. Existing problems, and actively rectify and reform, in order to seek more sustainable development. New urbanization mini excavator market gradually expanded  nineteen large party report suggested that "to promote industrialization, informatization, urbanization, agricultural modernization simultaneous development of" the "city group as the main construction of medium and small cities and small towns coordinated development Town pattern". This clarifies the mission and direction of socialist urbanization with Chinese characteristics in the new era, is conducive to promoting regional balance, urban-rural balance, and making up for the insufficient development of small and medium-sized cities and small towns. In the process of the gradual advancement of new urbanization construction, new rural communities have gradually emerged, and urban functional areas have been re-planned, which has effectively promoted the local real estate economy, thereby driving the development of the small excavator market. The emergence of new towns has stimulated the revitalization of the real estate economy and created new growth space for the small excavator industry! Accelerate the optimization and upgrading of the small excavator industry in the construction and manufacturing power The report of the 19th National Congress of the Communist Party of China pointed out that to build a modern economic system, we must focus on the real economy, improve the quality of the supply system as the main direction, accelerate the construction of a manufacturing power, and accelerate the development of advanced manufacturing. At present, the world has ushered in a new round of industrial revolution with more far-reaching impact. It is different from previous industrial revolutions in that it is not dominated by a single technology, but clustered innovation, integrated development and breakthrough of multiple emerging technologies. Will set off a new round of innovation and development climax. As for the traditional manufacturing industry-the small excavator industry, we should accurately grasp the connotation of the manufacturing power in the new era, and deeply understand that technological innovation is an important driving force for the manufacturing power. The introduction of intelligent production lines to realize automated, numerically controlled, and standardized production operations can not only reduce the dependence on labor, improve the production efficiency of small excavators and enterprise productivity, but also eliminate old technologies and processes, and improve the accuracy of products, thereby Improve the quality of small excavators as a whole. The small excavator industry should also accelerate the integration of informatization and industrialization, accelerate industrial optimization and upgrading, and use Internet technology to broaden new sales channels and communication channels. Through big data to achieve precise supply, to achieve personalized and intelligent new manufacturing of small excavators, especially under the impact of "new retail", the small excavator industry needs more online and offline efforts.

The domestic use of small rollers is already seen everywhere, so how to choose a small roller? You can choose from four aspects: 1. Choose according to engineering quality requirements: 1) If you want to obtain a uniform compaction density, you can choose a tire roller. The tire roller does not destroy the original viscosity of the soil during compaction, and has good bonding performance between the various layers of soil. The front wheel can swing, so the compaction is more uniform and there will be no false compaction. 2) If you want to make the road surface compact and smooth, you can choose a full-drive roller. In areas where the compaction capacity of the roller is not high, a flexible roller with lower line pressure can be used. To achieve the compaction effect as soon as possible, a large-tonnage roller can be used to shorten the construction period. 2. Choose according to the type of material to be pressed: 1) For the compaction of rock fills, large-tonnage rollers should be used to displace large blocks; 2) For the compaction of clay, it is best to use a bump tamping roller; 3) For the compaction of the mixture, it is best to choose a vibratory roller to make the large and small particles mix evenly; 4) For deep layer compaction, heavy-duty vibratory rollers should be used for slow rolling, while shallow layer should be statically applied rollers. 3. Choose according to the layer thickness: 1) When rolling an asphalt concrete pavement, the weight, amplitude and vibration frequency of the roller should be selected according to the paving thickness of the mixture. Generally, on thin pavements with a pavement thickness of less than 60mm, it is best to use a small 2-6t vibratory roller with an amplitude of 0.35~0.60mm to avoid stacking, wavy and damage to aggregates; 2) At the same time, in order to prevent the asphalt mixture from being too cold, it should be rolled immediately after paving. For thick plies with a thickness greater than 100mm, a large and medium-sized vibratory roller with a high amplitude (up to 1.0mm) and 6~10t should be used. 4. Choose according to road type (grade): 1). For the first and second national arterial roads and special roads for automobiles, a 6-10t large vibratory roller with high compaction capacity should be used; for roads below the third level, or when compaction operations are not frequently performed, the most It is well equipped with a maneuverable and flexible vibratory roller of about 2t. 2) For cement concrete roads, tire-driven tandem vibratory rollers can be used; 3) For asphalt concrete pavement, a full-drive vibratory roller should be used; 4) For the bottom layer of high-grade pavement roadbed, it is best to use tire rollers or tire-driven vibratory rollers for compaction to obtain uniform density; 5) When repairing the pavement, a static action smooth roller can be used.

16 HT15 Small Excavators Shipped to Italy – Hightop Export Update On November 17, 2021, Hightop Group shipped 16 units of the HT15 small excavator to Italy. This shipment marks another step in our continued expansion into the European market. The HT15 small excavators were loaded and installed at the Hightop Group Industrial Park before being prepared for shipment to Italy. This was not our first delivery to Europe, and it reflects the growing demand for compact, CE-certified excavators in the Italian construction and landscaping sectors. Why Italy Is a Key Market for Compact Excavators Italy's construction equipment market has shown steady demand for compact machinery in recent years. According to industry data, Italy led purchases of mini excavators at auction in 2024, with demand rising 27% on the Mascus platform. The compact construction equipment market in Italy is experiencing a surge in demand due to urbanization and infrastructure development projects. For contractors working in Italy's historic city centers, narrow streets, and tight residential lots, a 1.5-ton class excavator like the HT15 offers the right balance of power and maneuverability. It can access sites where larger machines simply cannot fit, while still delivering enough digging force for foundation work, trenching, and landscaping. HT15 Small Excavator – Built for European Job Sites The HT15 1.5-ton mini excavator is a compact digger designed for high-precision municipal construction and utility trenching in narrow working environments.[reference:0] Here are the key characteristics of this model: Simple linear structure – The straightforward design makes installation and maintenance easy, reducing downtime on the job site.[reference:1] World-renowned components – Pneumatic parts, electrical parts, and operating components are sourced from globally recognized brands, ensuring reliability and long service life.[reference:2] Compact design with low oil consumption – Suitable for gardens, farmland, municipal works, vegetable greenhouses, and trench digging.[reference:3] CE certified – The HT15, like all Hightop excavator series products, has obtained EU CE certification, ISO quality system certification, and other relevant certifications. Attachment versatility – Augers, grabs, hydraulic hammers, and narrow buckets can be installed, making it efficient for a wide range of applications.[reference:4] These features make the HT15 well-suited for a wide range of applications: utility trenching, foundation digging, landscaping, and indoor demolition in confined spaces. With a vehicle weight of 1500kg and multiple engine options (including Koop, Briggs & Stratton, Kubota, and electric variants), the HT15 can be configured for different market requirements and emission standards.[reference:5] CE Certification – A Requirement for the European Market All machinery imported from non-EU countries must bear a CE mark, regardless of the year of construction. The CE declaration confirms that the equipment complies with European health and safety regulations. Without this document, a machine cannot be officially commissioned and may face issues when being imported into the EU. Hightop's excavator series has obtained EU CE certification, ISO quality system certification, and other relevant certifications. This ensures that our machines meet the regulatory requirements for sale and operation in Italy and other European countries. For customers considering importing construction equipment to Italy, it's important to verify that the machinery comes with the necessary documentation: CE marking, Declaration of Conformity, and Stage V emission compliance documentation for newer models. Explore Hightop's Mini Excavator Lineup In addition to the HT15, Hightop offers a full range of mini excavators for various applications. Browse our mini excavator products to find the right model for your project. For customers in Europe, we offer machines with CE certification and engines configurable to meet local emission standards. Contact us to discuss your specific requirements. Frequently Asked Questions What is the HT15 small excavator? The HT15 is a 1.5-ton class mini excavator manufactured by Hightop. It features a simple linear structure, is easy to install and maintain, and uses world-renowned brand components for pneumatic and electrical parts.[reference:6] What certifications does the HT15 excavator have for the European market? Hightop's excavator series, including the HT15, have obtained EU CE certification, ISO quality system certification, and other relevant certifications required for the European market. How many HT15 excavators were shipped to Italy? A total of 16 units of the HT15 small excavator were shipped to Italy in November 2021. What are the key features of the HT15 mini excavator? The HT15 features a simple linear structure for easy maintenance, uses world-renowned brand components in pneumatic and electrical parts, compact design with low oil consumption, and supports a wide range of attachments.[reference:7] Is the HT15 available with different engine options? Yes. The HT15 is available with multiple engine options, including Koop 192 (7KW), Briggs & Stratton (10.2KW), Koop 292 / RATO (12KW), Kubota D722 (12KW), and electric variants (72V / 48V battery systems).[reference:8] Interested in the HT15 or Other Mini Excavators? If you're considering a compact excavator for your next project, we'd be happy to provide more information about the HT15 and our full product line. 📧 Email: info009@hightopgroup.com📞 WhatsApp: +86 181 6205 2962