Technical Knowledge
What to do if the efficiency of laser leveling machine drops?
July 24, 2023
In the process of using the laser leveling machine, pay attention to the harm caused by unfavorable factors to the leveling machine, because the working environment of the leveling machine has always been relatively harsh, so when the leveling machine is working, it will inevitably be damaged by the surrounding unfavorable factors, and it will also lead to a decline in the working efficiency of the laser leveling machine. Later, the failure will inevitably become more and more serious, so everyone should be careful when using it.

1. Avoid impurities:
For laser leveling machines that work in harsh environments and complex conditions, first of all, use high-quality and matching parts, lubricating oil, and grease to block the source of harmful impurities; secondly, do a good job of mechanical protection at the work site to ensure that the corresponding mechanisms can work normally and prevent various impurities from entering the interior of the machine. For the faulty laser leveling machine, try to go to the regular repair place for repair. When on-site repairs, protective measures must also be taken to prevent the parts replaced during on-site repairs from being polluted by impurities such as dust before entering the machine.
2. Applicable temperature:
During the use of the laser leveling machine, firstly, it is necessary to prevent overload operation at low temperature, ensure the normal operation in the low-speed preheating stage, and make the machine reach the specified temperature before driving or working. Do not ignore its important role because there is no problem at that time; secondly, prevent the laser leveling machine from operating at high temperature. During the operation of the machine, the values on various thermometers should be checked frequently.
For those who can’t find the reason for a while, the laser leveling machine must still work with the disease without treatment. In normal work, pay attention to check the working condition of the cooling system. For water-cooled machines, it is necessary to check and add cooling water before work every day; for air-cooled machines, the dust on the air-cooling system should also be cleaned regularly to ensure the smooth flow of cooling air ducts.
3. Anti-corrosion:
In the use of laser leveling machines, management and operators should take effective measures according to the local weather conditions and air pollution conditions at that time to reduce the impact of chemical corrosion on laser leveling machines. The focus is to prevent the intrusion of rainwater and chemical components in the air to the machinery.
Based on all the above contents, do you have a comprehensive understanding of the laser leveling machine to avoid the infringement of unfavorable factors? If the content we shared has helped you, welcome to continue to pay attention to our website, we will continue to update the newsletter for you, and strive to provide customers with better services.

Thanks to All the Friends Who Support and Trust Shandong Vanse Machinery Technology Co., Ltd.
If you want to know more about Shandong Vanse Machinery Technology Co., Ltd. or have any questions, please feel free to contact us:
Our Factory
Shandong Vanse Machinery Technology Co., Ltd.
About the Author: Shandong Vanse Machinery Technology Co., Ltd.
Shandong Vanse Machinery Technology Co., Ltd. is a high-tech manufacturer specializing in concrete construction machinery, including laser screeds and related equipment. The company integrates R&D, production, and global sales, with products exported to over 60 countries and widely used in infrastructure projects worldwide.
Shandong Vanse Machinery
Leading manufacturer specializing in high-performance concrete laser screeds, telescopic arm flatwork handlers, and mechanical ride-on power trowels.
Post overview
Main PRODUCT Categories
Need Machine Guidance?
Speak directly with Shandong Vanse field specialists for tailored equipment quotes and site planning.
Contact Us TodayRelated Articles
You Might Also Like
June 11, 2024
How often should emery floors be cleaned and maintained?
Frequency of cleaning and maintenance of emery floor 1. Characteristics of emery floor Emery floor, as the common name for wear-resistant hardened floor in China, has quickly occupied an important position in the field of floor decoration such as industrial sites, docks, parking lots, commercial stores, and logistics warehouses with its excellent wear resistance, compression resistance, and impact resistance since it was introduced by foreign companies in the 1990s. This floor has various colors, including cement color, gray, green, yellow, red, etc. The surface is dense and not easy to dust, and it is easy to clean. Compared with traditional industrial floor terrazzo, emery floor not only has higher cost performance and service life, but also greatly simplifies the construction process. It can be constructed simultaneously with concrete, saving a lot of time and labor. However, the microstructure of emery floor shows that its surface is relatively rough, and there is a capillary structure of concrete, which makes the floor not resistant to penetration, pollution, and corrosion of substances such as acid, alkali, and oil. Therefore, in daily use, the cleaning and maintenance of emery floor is particularly important. 2. Factors affecting the use environment The use environment is a key factor affecting the frequency of cleaning and maintenance of emery floor. Emery floors are usually faced with a variety of harsh environmental challenges, such as the operation of heavy machinery, the splashing of chemicals, and the penetration of water. These factors will directly affect the life and performance of the floor. For example, the operation of heavy machinery will cause frequent impact and friction on the floor, accelerating the wear of the floor; the splashing of chemicals may cause corrosion and discoloration of the floor surface; and the long-term penetration of water may cause cracking and dusting of the floor. In addition, the way of use will also have an important impact on the frequency of cleaning and maintenance of the floor. If heavy objects are often placed on the floor or a large number of objects are operated, the pressure and load on the ground will increase, thereby accelerating the wear and aging of the floor. 3. Cleaning and maintenance cycle recommendations Considering the characteristics of emery floors and the influence of the use environment, we recommend regular cleaning and maintenance of emery floors. The specific frequency can be adjusted according to actual conditions, but it is generally recommended to clean the floor at least once a week. During the cleaning process, the garbage and debris on the ground should be cleaned up first, and then professional cleaning agents and tools should be used for deep cleaning. In addition, for oil stains or other difficult-to-remove stains, specific cleaning agents or tools may be required for treatment. At the same time, we also recommend regular maintenance and care for the Jinze sand floor. This includes checking the integrity of the floor, promptly discovering and dealing with possible cracks or damage: regularly waxing or applying protective agents to the floor surface to improve its wear resistance and corrosion resistance; and ensuring that the use environment is dry and clean to avoid excessive moisture and chemicals from damaging the floor. 4. Professional cleaning and maintenance process The professional diamond sand floor cleaning and maintenance process usually includes the following steps: first, conduct a comprehensive inspection of the floor and record the areas and problems that need special attention; second, use professional cleaners and tools to deep clean the floor to remove stains and grease; then, make necessary repairs and treatments to the floor surface, such as filling cracks and polishing uneven areas; finally, wax or apply protective agents to the floor as needed to enhance durability and beauty. During the cleaning and maintenance process, standard cleaners and tools should be used to avoid using chemicals or sharp tools that damage the floor. At the same time, the professional skills and operating specifications of the cleaning and maintenance personnel should be ensured to avoid unnecessary damage to the floor. 5. Selection of maintenance materials and equipment When choosing maintenance materials and equipment, attention should be paid to their quality and performance. For cleaning agents, products that are harmless to the diamond floor and have good cleaning effects should be selected; for waxing or coating protective agents, wear-resistant, corrosion-resistant and environmentally friendly products should be selected. In terms of equipment, cleaning and maintenance equipment with stable performance and easy operation should be selected, such as high-pressure cleaning machines, vacuum cleaners, polishing machines, etc. These equipment can not only improve the efficiency and quality of cleaning and maintenance, but also reduce damage to the floor. 6. Daily maintenance and precautions In addition to regular cleaning and maintenance, daily maintenance of diamond floors is equally important. First, the use environment should be kept dry and clean to avoid excessive moisture and chemicals from damaging the floor. Secondly, people and items entering the floor should be properly managed and controlled to avoid scratches or impacts on the floor caused by sharp or heavy objects. In addition, the integrity of the floor should be checked regularly to detect and deal with possible problems in a timely manner. During use, the following points should also be noted: First, avoid scratching the floor surface with hard objects; second, avoid direct contact of strong acids, alkalis and other chemicals on the floor surface; third, regularly clean and maintain to keep the floor clean and beautiful. 7. Common problems and solutions In the process of using diamond sand floor, you may encounter some problems, such as reflection, noise and cracking. For these problems, we can adopt some effective solutions. For example, for reflection problems, it can be handled by grinding, waxing or spraying; for noise problems, sound insulation materials or processes can be used to improve; for cracking problems, it is necessary to pay attention to basic treatment and material selection during construction and maintenance to ensure the integrity and stability of the floor. In addition, stains or scratches that occur during use should be handled and repaired in time. For stains, professional cleaning agents can be used to remove them; for scratches, local repairs or overall renovations can be performed according to the depth and area of the scratches. 8. Summary and long-term planning In summary, the cleaning and maintenance of diamond sand floor is the key to ensuring its long-term performance and aesthetics. Through regular cleaning and daily maintenance, the service life of the floor can be effectively extended and the maintenance cost can be reduced. At the same time, choosing appropriate maintenance materials and equipment and standardized operating procedures are also important factors to ensure the cleaning and maintenance effect. In the future, with the advancement of science and technology and the improvement of environmental protection requirements, the cleaning and maintenance technology of diamond sand floor will also be continuously updated and improved. From a long-term perspective, for the maintenance and management of diamond sand floor, we also need to consider the following points: First, strengthen the training and management of floor users. Through training and publicity, improve the awareness and attention of users to floor protection, and avoid floor damage caused by human factors. Secondly, establish a complete cleaning and maintenance file. Record the time, content, effect, etc. of each cleaning and maintenance, so as to track and analyze the use of the floor, and find and solve problems in time. In addition, pay attention to industry development trends and technological innovation. With the continuous development of the floor industry, new materials, processes and technologies continue to emerge. We should maintain a keen insight, timely understand and master new technologies and methods to improve the cleaning and maintenance effect and service life of the floor. Finally, strengthen the environmental protection management of the floor. When choosing cleaning and maintenance materials and equipment, attention should be paid to their environmental performance and reducing pollution to the environment. At the same time, discarded cleaning and maintenance materials and equipment should be properly handled to avoid adverse effects on the environment. In short, the cleaning and maintenance of diamond sand floor is a long-term and important task, which requires us to invest sufficient time and energy in management and maintenance. Through scientific cleaning and maintenance methods and standardized operating procedures, we can ensure the long-term performance and aesthetics of the floor, and provide strong support for the production and operation of the enterprise. In actual operation, we also need to flexibly adjust the frequency and methods of cleaning and maintenance according to the specific use environment and floor conditions. For example, in areas with heavy oil pollution, it may be necessary to increase the frequency of cleaning or use stronger detergents; in areas with dense traffic, it may be necessary to strengthen daily maintenance and maintenance work. In addition, for some special cases, such as large-scale wear or severe pollution of the floor, we need to take professional repair and renovation measures in time. This may require the help of a professional floor repair team and advanced repair technology to ensure that the integrity and aesthetics of the floor are restored. In future development, with the application of intelligent and automated technologies, the cleaning and maintenance of diamond sand floor is expected to achieve higher efficiency and lower costs. For example, by introducing intelligent cleaning robots and automated maintenance systems, we can achieve regular and fixed-point cleaning and maintenance of the floor, reducing the tediousness and errors of manual operations. In short, the cleaning and maintenance of diamond sand floor is a comprehensive task that requires us to consider and implement from multiple aspects. Through scientific management and maintenance measures, we can ensure the long-term performance and aesthetics of the floor, and provide strong guarantees for the sustainable development of the enterprise.Read More
September 4, 2025
How to evaluate the effect of debugging and calibration of concrete laser leveling machine?
Evaluating the commissioning and calibration of a concrete laser leveling is a systematic process, with the core criteria being "efficient construction" and "high-quality finished products." A successfully commissioned and calibrated machine should perform exceptionally well during construction, ultimately delivering a concrete surface that meets or exceeds expectations. The following are detailed dimensions and methods for evaluating its effectiveness, which can be viewed from both process indicators and outcome indicators: These indicators focus on whether the machine is stable, efficient and reliable during operation. Evaluation method: Check whether the laser transmitter is securely mounted and whether its automatic leveling function is sensitive and accurate. Move the receiver within the effective range and observe whether the signal strength and data on the control panel are stable and without jumps. Good results: The laser transmitter is stable, and the signal covers the entire construction area without blind spots. The receiver can quickly capture and lock the signal at any position, and the device responds promptly. Machine response and execution accuracy Manual test: Without pouring concrete, start the leveling machine and observe whether the lifting and lowering action of the scraper (or mixing cage) is completely synchronized with the control command (manual raising/lowering), linear, and without delay. Automatic test: Place the leveling machine in a test area with a set elevation (such as a hardened floor), turn on the automatic mode, and the machine should automatically adjust the scraper according to the laser signal and maintain it at the designed height without any abnormal up and down fluctuations or "chasing" phenomenon (over-adjustment). Good results: The hydraulic or electric actuator moves smoothly, accurately, and without shock. The system corrects height deviations quickly and gently, without oscillation, demonstrating a good control algorithm. Evaluation method: Observe the performance during the actual pouring process. Does the operator need frequent manual intervention? Can the machine perform the leveling operation continuously? Good results: The construction process is smooth, and the leveling machine can "follow" the concrete pouring progress and continue to work, greatly reducing the downtime and waiting caused by equipment debugging problems, and significantly improving production efficiency. This is the most direct and reliable indicator for evaluating the effectiveness of commissioning and calibration. The quality of the final poured concrete floor must be verified by actual measured data. Evaluation tools: Use rulers and feeler gauges for routine testing. For more professional evaluation, use a floor flatness tester to measure F₃₀ and F₄₀ value. General standard: Use a 2-meter ruler to check, the gap should not be larger than 3-5mm. High standards: meet or even exceed the design requirements of F₃₀/F₄₀Values (e.g., F₃₀ ≥ 90%, F₄₀ ≥ 70%). This is the core value of the laser leveling machine. Evaluation tools: level or electronic level. Good results: The elevation of all points on large-area floors is consistent with the design elevation, with a very small error (usually required to be within ±3mm to ±5mm). Large areas are free of water accumulation. Evaluation method: visual inspection. Good results: The surface is dense and uniform, without obvious scraper marks, aggregate separation, honeycomb surface or cracks. The slurry is evenly mixed, providing a good foundation for the subsequent finishing process. A successful commissioning and calibration should bring the following comprehensive benefits: Evaluation Dimensions Good debugging and calibration results Debugging poor calibration results Flatness/levelness Very high, data meets standards and is uniform and consistent Uneven, large data fluctuations, and local deviations Construction efficiency High, continuous operation, less manual intervention Low, frequent shutdowns for adjustments, relying on workers' experience Operation difficulty Low, easy for operators to control, low labor intensity High, the operator needs to make manual corrections constantly, which is stressful Material saving Precise control of concrete paving thickness, saving materials Uneven thickness may cause material waste Post-Processing Good surface quality and small finishing workload Many surface defects, requiring additional repair work Equipment loss Smooth operation, little wear on hydraulic system, scraper and other components Frequent abnormal movements increase equipment wear No-load test: After completing all hardware and software settings, perform a no-load operation test to check whether all actions are normal. Simulation test: Set a known elevation on hardened ground and let the machine run automatically to verify its accuracy in positioning and maintaining the elevation. Small area trial pouring: Select a small area (such as 10m x 10m) for actual concrete pouring and leveling, which is the most critical step. Actual measurement: After the trial pouring area is completely solidified (or measured promptly after initial setting, taking care to protect the surface), use tools such as a ruler and a level to conduct comprehensive measurements and collect data. Analysis and Adjustment: Determine the effect based on the measured data. If it does not meet the standard, analyze whether it is a mechanical failure, laser system error, or parameter setting problem, make fine adjustments, and repeat the test until the effect is satisfactory. Large-area construction monitoring: During formal large-area construction, it is still necessary to regularly review the laser transmitter benchmark and the machine's zero point to ensure long-term working stability. In short, the evaluation of the debugging and calibration effect of the concrete laser leveling machine must not be based on feelings alone, but must rely on "data". The ultimate evaluation standard is whether it can efficiently and stably produce concrete floors with flatness, levelness and surface quality that meet the design requirements without frequent human intervention. ARMOUR JOINT CONCRETE LASER LEVELING MACHINE POWER TROWELRead More
October 28, 2025
Requirements & treatment for laser leveling of concrete base layers before grinding of special floors (such as epoxy floors and curing agent floors)
The quality of the concrete base directly determines the final effect and service life of special floors (such as epoxy and curing agent floors). Laser leveling, as a high-standard process in modern floor construction, lays a solid foundation for subsequent grinding and surface layer construction. The following is a detailed description of the requirements and treatment for laser leveling of concrete base before grinding of special floors: The concrete base layer after laser leveling and treatment should achieve the following core goals to meet the requirements of special floors Extremely high flatness: Eliminate large areas of waves and local height differences, ensure uniform thickness of the floor surface layer, and avoid problems such as uneven coating wear and dust accumulation caused by uneven base surfaces. Excellent levelness: Ensures that the ground meets the designed elevation, especially for large factories, warehouses and other places with strict requirements for ground slope. Solid surface strength: The base concrete must have sufficient compressive strength and surface hardness to prevent sanding, hollowing, and be able to withstand grinding by a grinding machine. Dense and uniform surface: Reduce pores, prevent excessive penetration of floor materials (such as epoxy primer), and provide uniform adhesion for the surface layer at the same time. Controllable cracks: Through reasonable cutting techniques, irregular cracks are guided to the preset shrinkage joints to ensure that no random cracks occur on the surface layer. Laser leveling is the crucial first step to achieving the above goals. Compaction degree: The soil base must be fully compacted, with a density of no less than 90%, to prevent concrete cracking caused by future settlement. Cushion layer: Usually, graded crushed stone is used as the cushion layer, with a thickness of no less than 150mm. It needs to be evenly spread and compacted. The cushion layer serves as the foundation for stress dispersion and drainage. Waterproof and moisture-proof: For floors with a high groundwater level or the first floor, a moisture-proof layer (such as PE film) must be set up to prevent the rise of underground water vapor from causing the epoxy floor to bubble and peel off. Strength: The grade should not be lower than C25. For areas with heavy load requirements, it is recommended to use C30 or higher. The compressive strength should ultimately reach above 25MPa. Mix ratio: The water-cement ratio is crucial and should be strictly controlled below 0.5. A low water-cement ratio is the prerequisite for ensuring the high strength and wear resistance of concrete. Aggregate: Medium and coarse sand and continuously graded crushed stone should be used, with the maximum particle size not exceeding 25mm, to ensure the compactness of the concrete. Additives: Water-reducing agents (ensuring workability while reducing the water-cement ratio), fibers (anti-cracking), etc. can be added as needed. Set control points: Based on the designed elevation, establish an accurate horizontal control network through a laser emitter. Concrete paving: The height of the loose paving should be 2-3cm higher than the designed elevation to prepare for the compaction and leveling by the leveling head. Concrete laser leveling machine operation The concrete laser leveling relies on laser signals to automatically control the height of the scraper, precisely spreading and initially compacting the concrete. Advantages: Compared with traditional techniques, it can achieve extremely high flatness (the height difference within a 2-meter straightedge is ≤3mm) and levelness, with extremely high efficiency and reduced reliance on workers. Synchronous processing: After laser leveling, a large trowel with a diameter of more than 1 meter should be used immediately to lift the slurry and finish the surface, flattening the surface floating slurry and aggregates to prepare for subsequent processing. Laser leveling merely creates a "rough blank". To meet the standard of a base layer that can be ground, a series of fine treatments are still required. Timing control: The mechanical trowel operation should be carried out after the initial setting of the concrete and before the final setting (when the depth of the footprints left by a person standing on it is approximately 2-3mm). The process is usually carried out in 2 to 3 rounds. For the first coat, use a disc to lift the slurry and smooth it out. Subsequently, switch to different trowelers for cross-operation to smooth and polish the surface. High-quality polishing is the core for achieving a hard, dense and uniform surface. Objective: To ensure the full hydration of cement, enhance its strength and prevent cracking. Method Recommendation: Spray the special concrete curing agent to form a sealing film. Traditionally effective: Cover with plastic film or lay non-woven fabric and sprinkle water to keep it moist. Time: At least 7 days. During this period, no load is allowed. Objective: To guide the release of concrete shrinkage stress at the preset position, form neat straight cracks, and avoid irregular cracking. Timing: Usually within 6 to 24 hours after pouring (when the strength reaches 5 to 10MPa), it should be able to cut through the concrete without carrying the aggregates. Requirement Spacing: Generally 20 to 30 times the thickness of the concrete slab, usually 4 to 6 meters. Depth: 1/4 to 1/3 of the plate thickness. Position: Align with the center line of the column and the edge line of the equipment foundation to maintain aesthetics. Before planning the grinding construction, a comprehensive assessment of the concrete base must be conducted: Strength: The compressive strength should be ≥25MPa when tested using a rebound tester or core sampling. Insufficient strength and direct grinding will cause the aggregates to peel off. Flatness: Use a 2-meter straightedge for inspection. The drop at any point should be ≤3mm. Laser-leveled floors can usually be easily achieved. Moisture content: Tested using a CM type moisture content tester. For epoxy flooring, the moisture content of the base layer should be ≤4%. For the curing agent floor, the requirements can be appropriately relaxed, but there must be no standing water. Surface quality: Check for no hollowing (by tapping with a small hammer), no sanding, no cracks (except shrinkage joints), no oil stains or other contaminants. Even after the above processes, some pretreatment may still be required before formal grinding: Cleaning: Thoroughly remove any residual maintenance agent, dust and debris from the ground. Repair: To repair minor defects, cracks or hollows in a local area. Use high-strength epoxy resin or special cement-based repair mortar. Preliminary grinding: If there is a slight amount of floating slurry or hardener residue on the surface, it may be necessary to use a metal grinding disc for a preliminary and light grinding to open up the surface pores and prepare for the subsequent penetration of the curing agent or the adhesion of the epoxy primer. For special floors, the saying "seven parts base layer and three parts surface layer" is no exaggeration. Laser leveling technology makes it possible to achieve high-quality concrete base layers, but it must be combined with strict material control, precise timing of construction, perfect curing and scientific joint treatment. A qualified laser-leveled concrete base layer suitable for grinding should possess: Level: Check with a 2-meter straightedge. The drop should be no more than 3mm. Strong: Compressive strength ≥25MPa, with a hard surface and no sanding. Dry: Moisture content meets the standard (epoxy ≤4%). Clean: The surface is clean, free from contamination and hollowing. Uniform: The surface is dense and uniform with small color differences. Only in this way can the subsequent grinding process be carried out efficiently, and the epoxy or curing agent floor can fully demonstrate its best wear resistance, pressure resistance, aesthetic appeal and long service life. Note: The parameters provided in this document are for reference only and are not mandatory. Due to differences in technical characteristics between different brands and models of laser levelers, please consult the manufacturer for a suitable solution before actual operation. This reference document assumes no responsibility for any issues arising from failure to follow the manufacturer's instructions.Read More


