Construction
In the construction of modern industrial plants, large shopping malls, and warehouses, the flatness and quality of large-scale cement concrete floors are crucial. Laser screed technology is revolutionizing traditional construction methods with its unprecedented precision and efficiency.
In modern industrial floor construction, Concrete Laser Leveling Machines are a revolutionary device. They use lasers as a reference plane and a laser receiver to control the screed head in real time, achieving high-precision and rapid concrete leveling.
Compared to floors constructed using conventional methods, Concrete Laser Leveling Machines can achieve over three times the flatness and levelness of surfaces, and increase density and strength by over 20%. They also improve work efficiency by over 50% and save approximately 35% in labor.
01 Characteristics of Different Types of Laser Screeds
Depending on project requirements and construction environments, three main types of Concrete Laser Leveling Machines are available on the market: two-wheel, four-wheel, and telescopic-arm models, each with its own unique advantages.
Two-wheel Concrete Laser Leveling Machines are compact, lightweight, and adaptable to a wide range of applications. They are generally affordable and primarily used for ordinary flooring and concrete flooring.
Two-wheel models lack an auger and require two people to assist with material feeding, while four-wheel models typically have an auger for paving, requiring only one person to assist with material feeding.
Four-wheel Concrete Laser Leveling Machines have a wide chassis and a stable center of gravity, making them particularly suitable for paving large areas. They have a strong load-bearing capacity and can be equipped with a higher-power hydraulic system for greater efficiency.
For example, Shandong Huaang Engineering Machinery's HA100-4D four-wheel Concrete Laser Leveling Machine automatically spreads, leveling, vibrates, and screeds all in one operation, achieving a high degree of flatness and density on cast-in-place concrete floors
Telescopic Concrete Laser Leveling Machines are leading large-scale equipment. The telescopic arm design has been a recent trend. The adjustable arm allows the screed head to be raised and lowered, and moved forward and backward to accommodate varying paving thicknesses.
Shandong Huaang Engineering Machinery's HA200-4L large telescopic Concrete Laser Leveling Machine, equipped with a laser system and a fully hydraulic control system, achieves higher precision in concrete surface leveling, ensuring efficient construction while meeting high standards.
The telescopic boom model is suitable for large-scale concrete engineering projects such as basements, garages, and factory floors. It has higher precision and the vibration is upgraded to an integrated balanced beam hydraulic vibration, which makes the vibration more uniform and the excitation force greater. The speed can also be adjusted according to the slump of the concrete, and the maximum speed can be 4000 rpm. The boom has a V-groove design, which is Huaang's unique patent. It also adds three support points to make the boom more stable. The four hydraulic outriggers are easy to adjust with manual levers. The outriggers can be raised and lowered individually with high speed. It is exclusively equipped with a safety lock function, high and low speeds, a dual cooling system, and an additional water tank and hydraulic cleaning machine.
Telescopic Concrete Laser Leveling Machines are leading large-scale equipment. The telescopic arm design has been a recent trend. The adjustable arm allows the screed head to be raised and lowered, and moved forward and backward to accommodate varying paving thicknesses.
Shandong Huaang Engineering Machinery's HA200-4L large telescopic Concrete Laser Leveling Machine, equipped with a laser system and a fully hydraulic control system, achieves higher precision in concrete surface leveling, ensuring efficient construction while meeting high standards.
The telescopic boom model is suitable for large-scale concrete engineering projects such as basements, garages, and factory floors. It has higher precision and the vibration is upgraded to an integrated balanced beam hydraulic vibration, which makes the vibration more uniform and the excitation force greater. The speed can also be adjusted according to the slump of the concrete, and the maximum speed can be 4000 rpm. The boom has a V-groove design, which is Huaang's unique patent. It also adds three support points to make the boom more stable. The four hydraulic outriggers are easy to adjust with manual levers. The outriggers can be raised and lowered individually with high speed. It is exclusively equipped with a safety lock function, high and low speeds, a dual cooling system, and an additional water tank and hydraulic cleaning machine.
02 Laser Screed Operating Principle and Technical Advantages
The core technology of the Concrete Laser Leveling Machine lies in its utilization of precision laser technology, closed-loop control, and a highly precise hydraulic system, enabling automatic leveling under computer control.
A separately positioned laser transmitter generates a rotating laser beam. The laser receiver on the Concrete Laser Leveling Machine receives the signal, which is then analyzed by the laser measurement and control system. Any deviations are fed back to the Concrete Laser Leveling Machine's sensitive computer control system.
The computer control system automatically adjusts the elevation 10 times per second to ensure effective control of the flatness and levelness of the paved surface.
In addition, the equipment's powerful vibrator, with a vibration frequency of 4,000 vibrations per minute, ensures that the concrete is vibrated and compacted, resulting in a homogeneous and dense concrete matrix.
Compared to traditional construction methods, the Concrete Laser Leveling Machine offers significant advantages: it eliminates the need for control wires or side formwork to control the surface elevation.
Regardless of where the Concrete Laser Leveling Machine is moved, the overall elevation of the paved surface remains unchanged, preventing cumulative errors.
03 Main Construction Process and Supporting Equipment
Laser screed installation involves a multi-step coordinated process. The main construction process includes: civil engineering formwork (base formwork) → reinforcement anchoring → concrete pouring and laser leveling control → Concrete Laser Leveling Machine leveling → precise leveling by professional technicians using a 3-meter scraper → slurry application and leveling by a single-disc trowel → precise leveling by professionals using a 3-meter scraper → professional operation of a double-disc trowel → finishing the surface → finished product protection.
After leveling, supporting equipment such as grinders and concrete cutters complete the subsequent work. The grinder uses high-speed rotation, oscillation, and smoothing to achieve a defined shape, controlled by a pre-set program, leaving no blind spots.
Traditional grinders require significant effort to hold the handle steady while operating. Modern troweling robots, however, utilize only a remote control joystick, resulting in 2-3 times greater efficiency.
Concrete cutters are used to cut control joints in the cured concrete surface to determine the location of shrinkage cracks.
04 Application Scenarios and Future Development Trends
Laser screed machines are widely used in various locations requiring high surface quality. Indoor flooring includes underground garages, general industrial plants, workshops, automated warehouses; cleanroom facilities for electronics, food processing, and pharmaceuticals; as well as large warehouse-style supermarkets, logistics centers, and convention and exhibition centers.
For outdoor flooring, Concrete Laser Leveling Machine machines can be used in docks, container yards, cargo yards; airport runways, aprons, and parking lots; plazas, residential floors, and municipal pavements.
With the advancement of laser and electronics technologies, Concrete Laser Leveling Machine machines are moving towards intelligent and robotic applications.
For example, Concrete Laser Leveling Machine robots utilize AI-powered high-precision laser control systems, achieving leveling accuracy within 5 mm and requiring only one person to operate.
Traditional manual operations require a level to mark elevations, followed by visual measurement and height verification, but accuracy exceeds 10 mm and requires a team of 5-8 people.
In the future, with the continuous advancement of artificial intelligence and robotics, Concrete Laser Leveling Machine machines will become even more intelligent. The construction robots deployed on pilot projects in Shanghai by China Construction Eighth Engineering Bureau Shanghai Company have demonstrated the enormous potential of human-robot collaboration.
The multi-function display on the Concrete Laser Leveling Machine machine displays real-time images of the front and rear working status, while also monitoring the engine and hydraulic systems. This greatly facilitates remote control and fault diagnosis.
Construction technology innovation continues unabated, and Concrete Laser Leveling Machine technology, with its superior performance and efficiency, is becoming an indispensable part of modern floor construction.
