Jointing Process between Manual Trowel and Mechanical Troweling in Edge Areas

  The boom (also known as the telescopic boom or large boom) of the concrete laser leveling is its core structure and power transmission component, bearing the vibrating rammer and scraper. The reliability of its maintenance is directly related to the accuracy, service life and construction safety of the equipment. The following is a systematic and comprehensive correct maintenance plan for the boom section, covering daily, regular and professional-level maintenance. This is the most fundamental and crucial step in preventing malfunctions. Structural visual inspection: Carefully inspect the main body of the boom, the connection points of each section, and the hinge seats connected to the main unit for any visible cracks, open welds, severe deformations or corrosion. Focus on inspecting areas with stress concentration. Fastener inspection: Use manual tools to check whether all key bolts (especially hinge pin shaft bolts, boom extension and retraction fixing bolts, and cylinder connection pin bolts) are loose. Tighten regularly according to the torque specified by the manufacturer. Grease lubrication: Apply grease to all lubrication points (grease nipples) until all the old grease is completely squeezed out. Including: All articulated pin shafts Boom telescopic slide/slider (if any) The connection support between the vibrator and the boom Preliminary inspection of the hydraulic system: Check whether there are scratches, dents or leaks on the surface of the piston rods of the boom lifting and telescopic cylinders. Check whether there is any oil leakage at the hydraulic pipeline joints. Thorough cleaning: Use a high-pressure water gun (with moderate pressure, avoid direct impact on bearing seals and electrical components) to remove all solidified concrete slurry and debris from the boom, scraper, and tamper plate. Residual concrete will increase the load, disrupt the dynamic balance and cause corrosion. Inspect the slider/slide: After cleaning, check the wear condition of the slider of the boom extension mechanism (usually made of wear-resistant polymer materials), and remove the sand particles in the slide. Proper storage: Retract and lower the boom, place it on a stable support, and release the stress. Avoid storing for a long time in a fully extended or suspended state. Replenish the daily lubrication points and ensure the use of the correct type of grease specified in the equipment manual. For sliding contact surfaces without grease nipples, a thin layer of grease can be applied to prevent rust. Use a torque wrench to systematically retighten all key bolts of the boom structure strictly in accordance with the torque values provided by the manufacturer. Vibration is the primary cause of bolt loosening. Cylinder: Check the sealing condition of the cylinder more carefully and inspect whether the piston rod is bent. Pipes and joints: Inspect all hydraulic hoses for signs of wear, bulging, cracking or friction with structural components. Fix it in time with a rubber hose protective sleeve or re-bind it. Hydraulic oil status: Check the oil level and quality (color, odor, and presence of foam) of the entire machine's hydraulic oil. Contaminated or deteriorated hydraulic oil can damage the valve groups that control the movement of the boom. For equipment used at high intensity, it is recommended to use professional methods such as magnetic particle testing or ultrasonic testing to inspect key welding areas and stress zones, in order to detect micro-cracks that are invisible to the naked eye. Disassemble and inspect key pin shafts and bushings: Disassemble the main hinged pin shafts, check their wear and scratches, and measure the diameter. Check the wear clearance of the bushing/bearing. If it exceeds the wear limit, it must be replaced. Check the deformation of the boom: Use professional instruments or the wire pulling method to check whether the straightness and parallelism of the boom are within the allowable range. Replace worn parts: Replace worn telescopic sliders, scraper cutting edges, ramming plate bottom plates and other vulnerable parts. Hydraulic system maintenance: Replace hydraulic oil and filter elements, and clean the hydraulic oil tank. Check and adjust the working pressure and synchronization of the boom control valve group. Thoroughly remove the rust from the areas where the paint layer has peeled off and rusted, and reapply the same grade of anti-rust primer and topcoat as the original factory. High-intensity continuous operation: Shorten the interval between lubrication and inspection (such as adding one intermediate inspection per shift). Corrosive environments (coastal areas, near chemical plants) : Enhance cleaning and carry out anti-corrosion treatment more frequently. Extreme temperature difference environment: Pay attention that the type of hydraulic oil and grease must meet the temperature requirements. After cold start, low-speed preheating operation is required. Establish a maintenance log: record in detail the date of each maintenance, the project, the replaced components, the problems found and the handling measures. This is helpful for tracking the status of devices and predicting their lifespan. Standardized operation: The maintenance plan must be combined with standardized operation. Operators should avoid: Use the boom to forcefully push materials or collide. Driving at high speed or turning when the boom is not lifted. Allow the equipment to extend, retract or lift before it has completely stopped. Overloading or operating beyond the designed slope. Cleanliness is the foundation: preventing concrete consolidation and corrosion. Lubrication is key: reducing wear, preventing abnormal noise and jamming. Fastening is a guarantee: preventing structural loosening and accidents. Inspection is prevention: Through daily visual inspection and regular professional checks, potential hazards can be eliminated in their infancy. The records are based on: achieving traceable and scientific preventive maintenance. Strictly adhering to the specific regulations and suggestions in the "Operation and Maintenance Manual" provided by the equipment manufacturer is the fundamental basis for formulating and implementing any maintenance plan. When any undetermined abnormalities (such as abnormal noise, slow movement, or unexplained deviations) are detected, the machine should be stopped immediately and professional technicians should be contacted for diagnosis. 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.    

In the field of modern floor construction, efficient and precise construction technology is the key to ensuring the quality and progress of the project. As an industry-leading concrete leveling solution, Vanse Concrete Laser Leveling Machine is designed for various floor construction scenarios, such as industrial plants, warehouses, parking lots, etc., providing unprecedented construction advantages. Its core lies in the use of advanced laser technology to achieve precise control of the flatness of the concrete surface and create a perfect floor project for users.   (I) Laser emission and reception The laser transmitter equipped with Vanse laser leveling machine can be installed on a stable reference point to emit a horizontal laser beam to the construction area to form an accurate plane reference. Whether it is a rotating or fixed laser transmitter, it can be flexibly selected according to the size and shape of the construction site to ensure that the horizontal accuracy can reach ±0.5mm/10m. It uses 635nm or 650nm visible red light wavelengths that are safe for human eyes, which is convenient for construction personnel to observe and calibrate. The power range is 5mW-10mW, which meets the signal strength requirements within the construction range. At the same time, the laser receiver on the leveler can receive laser signals in real time, providing accurate data for subsequent automatic control.   (II) Automatic control and feedback When the laser receiver detects that there is a deviation between the position of the leveler scraper and the laser plane, the advanced control system of the Vanse laser leveler begins to play a role. The system adopts PLC (programmable logic controller) or microcomputer control system, with automatic control, manual adjustment and fault diagnosis functions, and uses advanced PID (proportional-integral-differential) control algorithm to automatically adjust the height of the scraper according to the deviation signal. The scraper is driven up or down by the hydraulic system to keep the scraper on the laser plane at all times, thereby ensuring that the flatness error of the concrete surface is controlled within a very small range.   (I) Laser transmitter 1. Type: Two options are available: rotary and fixed to meet the needs of different construction sites. 2. Accuracy: The horizontal accuracy is as high as ±0.5mm/10m, ensuring that the emitted laser plane is highly accurate. 3. Laser wavelength: 635nm or 650nm visible red light is used, which is safe for human eyes and convenient for construction operation. 4. Power: 5mW – 10mW, to ensure the signal strength within the construction range.   (II) Laser leveling machine 1. Scraper system – Scraper material: The use of high-strength wear-resistant alloy materials, such as high-chromium alloy, greatly guarantees the wear resistance and service life of the scraper, reduces the replacement frequency, and reduces the cost of use. – Scraper length and width: Length 2 – 5m, width 0.5 – 2m, can cover a larger area of ​​concrete surface, improve construction efficiency. – Scraper adjustment range: The vertical adjustment range is 0 – 30cm, which is suitable for concrete construction of different thicknesses. 2. Walking system – Walking mode: Two walking modes are provided: crawler and wheeled. The crawler is suitable for complex terrain and soft ground, and the wheeled walking speed is faster. Users can freely choose according to the conditions of the construction site. – Travel speed: It can be adjusted within the range of 0 – 1.5m/s, and the operator can flexibly adjust it according to the slump of concrete and construction requirements. – Drive motor power: According to the weight of the whole machine and the travel resistance, the motor power is 5 – 20kW to ensure that the leveling machine can walk stably on the concrete. 3. Hydraulic system – Hydraulic pump type: A variable piston pump is selected, which can automatically adjust the output according to the system pressure and flow requirements, improve the efficiency of the hydraulic system, and reduce energy consumption. – Hydraulic cylinder parameters: The stroke and thrust of the scraper lifting cylinder meet the scraper adjustment requirements, and the working pressure is 10 – 20MPa. – Hydraulic oil cooling method: Air-cooled or water-cooled cooler to ensure that the hydraulic oil temperature is within the normal working range and prevent the oil temperature from being too high to affect the system performance. 4. Laser receiver and control system – Laser receiver accuracy: It can accurately detect the laser plane deviation of ±1mm, providing guarantee for high-precision leveling. – Control system type: It adopts advanced PLC or microcomputer control system with powerful functions. – Control algorithm: Equipped with advanced PID control algorithm, it can quickly and accurately adjust the scraper height to ensure leveling accuracy.   (I) Construction preparation 1. Site cleaning: Clear the debris, dust and obstacles in the construction site, check and repair the base layer, ensure that the base layer flatness error is within ±10mm, and lay a good foundation for subsequent construction. 2. Laser transmitter installation and calibration: According to the size and shape of the construction site, select a suitable installation location, use tools such as a level to accurately calibrate the Vanse laser transmitter to ensure that the laser plane meets the design requirements. 3. Material preparation: Prepare concrete raw materials that meet the design requirements, and check their quality and slump (generally controlled at 12-18cm).   (II) Concrete pouring and leveling 1. Concrete pouring: Pour the concrete evenly in the construction area. The pouring method can be divided into compartments. The area of ​​each compartment should not exceed 500 square meters. Use a vibrator to vibrate the concrete while pouring. The vibration interval should not exceed 50cm. 2. Leveling machine start: After the concrete is initially vibrated, start the Vanse laser leveling machine (concrete leveling machine) and drive it to the poured concrete area. 3. Leveling operation: The operator controls the travel speed and scraper height of the leveling machine according to the signal of the laser receiver, so that the scraper moves along the laser plane to level the concrete. During the leveling process, pay attention to the flatness of the concrete surface and the working status of the scraper, and adjust the travel speed and scraper height in time.   (III) Quality inspection and subsequent treatment 1. Flatness inspection: Use tools such as a level and a 2m ruler to check the flatness of the leveled concrete surface. The flatness error within every 2 square meters should not exceed ±2mm. If uneven areas are found, local repairs should be made in time. 2. Surface treatment: According to construction requirements, surface finishing and roughening can be performed in the initial setting stage of concrete to improve the quality and aesthetics of the concrete surface. 3. Maintenance: After leveling, the concrete should be maintained in time. Plastic film can be covered, curing agent can be sprayed, etc., and the maintenance time should not be less than 7 days.   (I) High precision Compared with traditional leveling methods, Vanse concrete laser leveling machine can achieve higher flatness. Its advanced laser technology and precise control system can meet the construction needs of industrial plants, precision instrument workshops and other places with strict requirements on ground flatness, ensure that the ground flatness error is extremely small, and provide a high-quality foundation for subsequent production and use.   (II) High efficiency The automated leveling process reduces the time and error of manual operation and greatly improves construction efficiency. The large area coverage and adjustable walking speed of the scraper greatly shorten the construction period, reduce labor costs and time costs, and bring higher economic benefits to users.   (III) Strong adaptability Vanse laser leveling machine can adapt to different types of concrete and construction site conditions. Whether it is a large or small area, flat or with a certain slope, it can guarantee a good leveling effect. The choice of crawler and wheeled walking methods, as well as the flexible adjustment of the scraper system, enable it to cope with various complex construction environments.   (IV) Reliable quality The equipment adopts high-quality materials and advanced manufacturing processes, and the performance of each component is stable and reliable. The high precision of the laser transmitter and receiver, as well as the intelligent control system, ensure the stability and consistency during the construction process, and provide a solid guarantee for the quality of the flooring project.   (I) Quality Control 1. Equipment Calibration: Regularly calibrate the laser transmitter and the laser receiver and control system of the leveling machine to ensure that the equipment accuracy is always maintained at a high standard, providing a guarantee for the construction quality. 2. Construction Process Monitoring: During the construction process, arrange a dedicated person to be responsible for quality inspection, monitor the slump of concrete, the working parameters of the leveling machine and the flatness of the ground after leveling in real time, and deal with problems in a timely manner to ensure that the construction quality meets the requirements.   (II) Equipment Maintenance 1. Daily Maintenance: After the construction is completed, clean up the concrete residue on the leveling machine in time, check the wear of the scraper, walking system, hydraulic system and other components, lubricate the equipment and tighten the bolts and other maintenance work to extend the service life of the equipment. 2. Regular maintenance: According to the use time and working intensity of the equipment, the Vanse laser leveling machine should be regularly overhauled, the severely worn parts should be replaced, and the hydraulic oil and lubricating oil should be replaced to ensure the stable performance of the equipment and always maintain good working condition. If you are looking for a high-quality concrete laser leveling machine for sale, the Vanse concrete laser leveling machine is undoubtedly your best choice. We offer reasonable prices and meet your construction needs with excellent performance and high-quality services. At the same time, our equipment is also equipped with an efficient concrete leveling vibrator to further improve the construction effect. Choosing Vanse means choosing an efficient, accurate and reliable floor construction solution.

LASER LEVELING MACHINE – INSTRUCTIONS FOR USE With the continuous development and progress of the construction floor industry, the concrete laser leveling machine has become an indispensable mechanical equipment in modern buildings. The concrete laser leveling machine is a kind of super-flat and level ground Excellent machinery. In the past few years since its inception, the sales of Shandong Wanshi Concrete Laser Leveling Machine have continued to increase. And with the gradual recovery of the economy, the prospect of the entire laser leveling machine industry in the future is generally optimistic. Modern large-scale storage and logistics, squares, municipal roads, parking lots and other construction fields directly stimulate the demand for concrete laser leveling machines. The market demand for laser paving paver equipment is huge. During the use of the concrete leveling machine, pay attention to the following items so that the machine can serve you better: Due to the high efficiency of construction, the cutting seams in the later stage must keep up. Generally, each laser paving and leveling machine is equipped with 7-8 cutting seams to meet the requirements. The speed of the laser leveling machine should not be too fast during the leveling operation. Initial leveling should be carried out before concrete leveling, and the concrete after initial leveling should be higher than the established elevation. In the early stage, plastic film should be used for maintenance, and non-woven fabric should be covered after cutting. Pay attention to avoid obstacles when installing the laser transmitter. During the construction process, due to the lateral pressure of the concrete, the steel mesh is easy to displace horizontally. Therefore, an isolation bench is placed directly on the adjacent steel mesh, and the horizontal movement of the steel mesh is effectively controlled, and the bench can be used for turnover.   Shandong VANSE Machinery is a professional concrete laser paving and leveling machine manufacturer integrating R&D, production and sales. The concrete laser leveling machine and other high-tech products produced by the company can reduce about 60% of the high-strength Labor force, saving about 50% of construction cost, shortening about 50% of construction period, increasing the strength and compactness of the floor by about 25%, levelness and flatness exceeding the national standard, and the completed "three super" floor reaching the international standard First class.