VANSE Machinery warmly reminds you what aspects you should pay attention to when purchasing a car-mounted laser leveling machine

When renting a concrete laser leveling, you need to pay attention to the following points: 1. Choose the right leasing method There are many ways to rent concrete laser leveling machines, including long-term rental, short-term rental, hourly rental, etc. Different leasing methods correspond to different needs and budgets, and you need to choose according to the actual situation. Long-term leasing usually requires higher rent, but can be used for a longer period of time, which is suitable for construction companies that need to use the leveling machine for a long time; short-term leasing and hourly leasing are suitable for situations that require short-term use of the leveling machine, such as a certain specific engineering projects. 2. Choose a regular lessor When choosing a lessor, you need to choose a formal and qualified lessor to ensure that the leased concrete laser leveling machine has reliable quality and guaranteed service. You can find regular leasing companies through online searches, friend recommendations, etc. 3. Understand the rental fees and deposit status Before signing a rental contract, you need to understand the specific rental fees and deposits. Rental costs include rental and transportation costs, etc. The specific price needs to be negotiated based on the actual situation. The deposit is to protect the rights and interests of both parties to the lease. After the contract expires, if the leveler is not damaged or causes no other losses, the lessor needs to return the deposit to the lessee. 4. Check the quality of the leveling machine Before taking delivery of a rental concrete laser leveling, the quality of the leveling needs to be inspected. The inspection content includes the appearance of the leveler, whether the spare parts are complete, and whether the performance is normal, etc. If there are any problems, you need to contact the lessor promptly and request replacement or repair. 5. Sign a lease contract When signing a lease contract, you need to read the terms of the contract carefully to clarify the rights and obligations of both parties. The contract content should include the lease term, rent and payment method, deposit and return method, equipment maintenance and repair responsibilities, etc. In addition, you also need to understand important terms such as liability for breach of contract and methods of resolving disputes. 6. Precautions during use During the rental period, you need to pay attention to the following points when using the concrete laser leveling: Comply with the operating specifications and precautions in the instruction manual, and use and maintain the leveling machine correctly; Avoid the leveler working in harsh environments, such as high temperature, low temperature, humidity, etc.; If any problems or malfunctions are found during use, stop the machine immediately and contact the lessor; Comply with safety regulations at the construction site to ensure the safety of construction workers; After use, the surface of the leveler should be cleaned in time to avoid affecting the next use. 7. Pay rent and maintenance fees on time In the process of using a concrete laser leveling machine, rent and maintenance fees need to be paid on time. The rent is the cost of leasing the leveling machine and needs to be paid according to the time and method agreed in the contract; the maintenance fee is to ensure the normal use and maintenance of the leveling machine and needs to be maintained and maintained in accordance with the requirements in the instruction manual. 8. Pay attention to the return of equipment At the end of the lease period, the concrete laser leveling needs to be returned to the lessor. Please note the following points when returning: Make sure the surface of the leveler is clean and tidy with no obvious damage; Make sure the spare parts of the leveling machine are intact; Make sure the leveler is functioning properly; Contact the lessor promptly and go through the return procedures. To sum up, when renting a concrete laser leveling, you need to pay attention to choosing the appropriate rental method, choosing a regular lessor, understanding the rental fees and deposits, checking the quality of the leveling, signing a rental contract, and paying attention to the precautions during use. Pay rent and maintenance fees on time and pay attention to the return of equipment. Only by carefully understanding and complying with the above precautions can we better use the concrete laser leveler and improve construction efficiency and quality.

♢ • ♢ • ♢ • ☆ Equipment Overview ☆ • ♢ • ♢ • ♢ The concrete laser leveling machine is an efficient and accurate ground leveling equipment that is widely used in various construction projects. It combines modern laser technology and mechanical engineering technology, captures the signal from the laser transmitter through the laser receiver, controls the scraper height of the leveling machine, and realizes automatic leveling of newly poured concrete, greatly improving work efficiency and leveling quality. . This equipment is suitable for large-area, high-precision concrete ground construction, such as commercial complexes, parking lots, warehouses and other places. ♢ • ♢ • ♢ • ☆ Equipment composition ☆ • ♢ • ♢ • ♢ The concrete laser leveling machine mainly consists of the following parts: 1. Main machine: including core components such as engine, traveling system, leveling system, control system, etc., it is the main working mechanism of the leveling machine. 2. Laser transmitter: used to emit laser signals to provide a reference plane for the leveling machine. 3. Laser receiver: installed on the leveling machine, used to capture laser signals and convert them into mechanical control signals. 4. Water source and water spray system: Provide an appropriate amount of moisture to the concrete during the leveling process to ensure that the concrete surface is flat and smooth. 5. Accessories: including various to ols, measuring tools, etc., used to assist the use and maintenance of the leveling machine ♢ • ♢ • ♢ • ☆ Safety Instructions ☆ • ♢ • ♢ • ♢ When operating a concrete laser leveling, the following safety regulations must be strictly observed: 1. Operators must receive professional training, be familiar with the equipment structure and operating points, and must obtain operating qualifications before taking up their posts. 2. Before starting the equipment, you must check whe ther all components are intact and whether the fasteners are firm and reliable to ensure that the equipment is in good working condition. 3. During operation, overloading, overspeeding, and over-range use are strictly prohibited to avoid equipment damage due to overload. 4. At the construction site, obvious safety war ning signs must be set up to ensure that non-workers stay away from the work area. 5. When the equipment has a fault or abnormality, it should be stopped immediately for inspection and the fault can be eliminated before continued use. 6. Operators must wear complete safety protective equipment, such as hard hats, protective glasses, gloves, etc., to ensure personal safety. ♢ • ♢ • ♢ • ☆ Preparation ☆ • ♢ • ♢ • ♢ Before operating the concrete laser leveling machine, you need to make the following preparations: 1. Check whether the appearance of the equipment is intact and whether there is any obvious damage or deformation. 2. Check whether the engine oil, water tank water level, etc. are within the specified range to ensure that the equipment lubrication and cooling systems are working properly. 3. Check whether each connection part is fastened reliably to prevent the equipment from loosening or falling off during work. 4. Check whether the laser transmitter and receiver are installed correctly to ensure that the laser signal can be transmitted and received normally. 5. According to the conditions of the construction site, reasonably arrange the position of the laser transmitter to ensure that the leveler can receive stable laser signals. 6. Prepare the water source and water spray system to ensure that the concrete surface can be fully moistened during the leveling process. ♢ • ♢ • ♢ • ☆ Operational procedures ☆ • ♢ • ♢ • ♢ The operation process of the concrete laser leveling is as follows: 1. Start the engine, preheat the equipment, and check whether each system is working properly. 2. Set the parameters of the laser transmitter according to the construction drawings and site conditions to ensure that the laser signal emitted meets the leveling requirements. 3. Connect the laser receiver to the leveling machine to ensure stable and reliable signal transmission. 4. Adjust the height and angle of the scraper of the leveling machine to maintain an appropriate distance and angle from the laser signal. 5. Turn on the water spray system to provide the appropriate amount of moisture to the concrete surface. 6. Start the leveling operation. According to the construction progress and the initial setting time of the concrete, reasonably control the walking speed of the leveling machine and the lifting frequency of the scraper. 7. During the leveling process, always observe the flatness and wetness of the concrete surface, and adjust the scraper height and water spray volume in a timely manner. 8. After the leveling operation is completed, turn off the engine and water spray system, and disconnect the laser receiver from the leveling machine. 9. Clean the equipment surface and construction site to ensure that the equipment is tidy and the environment is clean. ♢ • ♢ • ♢ • ☆ Care and Maintenance ☆ • ♢ • ♢ • ♢ In order to ensure the long-term stable operation of the concrete laser leveling machine, regular maintenance and upkeep work must be performed, including: 1. Regularly replace the engine oil and clean the oil filter to ensure that the engine lubrication system is clean and effective. 2. Check whether the cooling system components such as water tanks and water pipes are leaking or blocked, and keep the cooling system unimpeded. 3. Check the wear of scrapers, running wheels and other wearing parts, and replace damaged parts in time to ensure stable equipment performance. 4. Clean dust, oil and other debris on the surface and inside of the equipment to keep the equipment clean and tidy. 5. Regularly check the working status of key components such as electrical systems, laser transmitters and receivers to ensure their normal operation. 6. In accordance with the requirements of the equipment instruction manual, conduct regular comprehensive inspections and maintenance of the equipment to ensure long-term stable operation of the equipment. ♢ • ♢ • ♢ • ☆ Troubleshooting ☆ • ♢ • ♢ • ♢ During use, the concrete laser leveling may encounter some malfunctions or abnormal situations. To solve these problems, we can take the following measures to eliminate them: 1. Difficulty starting the engine: Check whether the battery power is sufficient, whether the starter motor is working normally, whether the fuel supply is smooth, etc. If there is any problem, replace the battery, start the motor or clean the fuel system in time. 2. Poor leveling effect: Check whether the laser transmitter and receiver are installed correctly and whether the signal is stable and reliable; check whether the height and angle of the scraper are adjusted appropriately; check whether the concrete surface is even and moist. If there is any problem, adjust or replace relevant parts in time. 3. The equipment is running abnormally: check whether the running wheels are seriously worn, whether the bearings are damaged, whether the transmission chain is loose, etc. If there is any problem, replace the running wheel, bearing or adjust the transmission chain in time. 4. The laser signal is unstable: Check whether the laser transmitter and receiver are interfered, whether the reflective surface is clean, whether the lens is damaged, etc. If there is any problem, promptly eliminate the interference, clean the reflective surface or replace the lens. 5. Electrical system failure: Check whether the cables are damaged, whether the wiring is loose, whether the components are damaged, etc. If there is a problem, repair the cable, tighten the wiring or replace the components in time. When troubleshooting, operators should strictly follow the requirements of the equipment instruction manual and are strictly prohibited from dismantling or repairing the equipment at will. If you encounter a fault that cannot be solved, you should contact professional maintenance personnel in time to handle it. ♢ • ♢ • ♢ • ☆ Transportation and Storage ☆ • ♢ • ♢ • ♢ When transporting and storing the concrete laser leveling, you need to pay attention to the following points: 1. Before transportation, make sure the device is turned off and disconnect the power supply and cables to prevent accidental startup during transportation. 2. During transportation, the equipment should be fixed and protected to prevent the equipment from being collided or damaged during transportation. 3. After arriving at the destination, the equipment should be fully inspected to ensure that the equipment has not been damaged or deformed during transportation. 4. When storing equipment, you should choose a dry, ventilated, and dark place to prevent the equipment from moisture, rust, or other damage. 5. During the storage period, the equipment should be maintained and maintained regularly to ensure that the equipment can work normally the next time it is used. In short, the warm concrete laser leveling machine is an efficient and accurate ground leveling equipment, but during use it needs to strictly abide by safety regulations, make preparations, follow operating procedures, perform regular maintenance and troubleshooting, and troubleshoot in a timely manner , and take necessary protective measures during transportation and storage. Only in this way can the long-term stable operation and service life of the equipment be ensured.  

  Relationship with the direction of principal stress: The main function of the steel mesh is to bear the tensile force in the concrete structure. When the structure is stressed, the principal stress will be generated inside the concrete. The laying direction of the steel mesh should be consistent with the principal stress direction as much as possible, so that the tensile strength of the steel bars can be fully exerted and the bearing capacity of the structure can be effectively improved. For example, in a one-way slab, the load is mainly transmitted along the short span direction, and the direction of the principal tensile stress is also roughly along the short span direction. Therefore, the bottom steel mesh is usually arranged along the short span direction to resist the tensile force. Two-way stress situation: For a two-way slab, the spans in both directions are similar, and both bear a large load. The steel mesh in both directions must bear tensile force. At this time, the steel mesh should be arranged in a certain proportion according to the force size in the two directions, and is generally laid perpendicular to each other, so that the structure can have sufficient bearing capacity and good deformation performance in both directions. Control of crack direction: A reasonable laying direction of the steel mesh can guide the development direction of the crack, so that it develops in the direction with less influence on the structural force. For example, in concrete pavement, transverse reinforcement can limit the development of longitudinal cracks, while longitudinal reinforcement can restrain transverse cracks, thereby improving the integrity and durability of the pavement. Improving crack resistance: When the steel mesh is laid along the direction where cracks may occur, it can play a "bridge" role after the concrete cracks, withstand the tension on both sides of the cracks, and prevent the cracks from further expanding. For example, in the wall of a hydraulic structure, the horizontal and vertical steel meshes work together to effectively improve the wall's ability to resist cracks caused by factors such as temperature changes and concrete shrinkage. Protecting steel bars: The correct laying direction of the steel mesh helps to ensure the protective effect of concrete on the steel bars. The steel bars are wrapped in concrete to prevent them from rusting and corroding when exposed to the external environment. If the steel mesh is laid improperly, resulting in deviation in the position of the steel bars or uneven thickness of the protective layer, the steel bars are prone to rust under the action of external corrosive media, thereby reducing the durability of the structure. For example, in the basement structure of a building, the laying of the steel mesh should ensure that there is a sufficient and uniform concrete protective layer to prevent groundwater from corroding the steel bars. Uniform stress: Reasonable laying direction makes the steel mesh evenly stressed in the structure, avoiding premature destruction of concrete due to local stress concentration, thereby providing a stable protective environment for the steel bars and extending the service life of the structure. In short, the laying direction of the steel mesh is an important factor affecting the performance of the building structure. During the construction process, the laying direction of the steel mesh must be reasonably determined according to the stress characteristics and design requirements of the structure to ensure the safety, applicability and durability of the building structure.