Technical Knowledge
How do power trowel machines and concrete laser levelers work together?

The trowel and concrete laser leveler are usually used together in concrete construction to improve the flatness of the ground and construction efficiency. The following is the working process and precautions of the two:
🎈 1. Workflow
Laser leveler rough leveling
△ Applicable stage: Before initial setting after concrete pouring (about 1-2 hours after pouring, the specific time depends on the concrete ratio and ambient temperature).
△ Operation points: The laser leveler sets the reference plane through the laser transmitter, automatically levels and vibrates the concrete, and quickly completes the rough leveling of a large area.
Focus on the corners, column roots and other areas that are difficult for the laser leveler to cover, and manually assist in scraping.
Trowel fine leveling
△ Applicable stage: after the initial setting of concrete (when there is a slight indentation when pressing with fingers but it is not sticky).
Operation steps:
△ Disc trowel: First use a disc trowel to perform preliminary slurry lifting and compaction to eliminate surface bumps.
△ Blade trowel: After the concrete strength is further improved, use a blade trowel for fine finishing to form a smooth surface.
△ Note: The trowel needs to be divided into 2-3 Operate over and adjust the blade angle (from low to high) each time to gradually increase the surface density.
🎈 2. Key points of cooperation
Time control
△ The laser leveling machine needs to complete the rough leveling before the initial setting of the concrete to avoid the difficulty of vibrating the concrete after hardening.
△ The trowel machine needs to start working after the initial setting of the concrete. Too early will cause sand on the surface, and too late will make it difficult to compact.
Division of labor and cooperation
△ The laser leveling machine is responsible for efficient leveling of large areas, and the trowel machine is responsible for local finishing and surface treatment.
△ For the corners that the laser leveling machine cannot reach, it is necessary to manually use a scraper to initially level it, and then the trowel machine will handle it.
Technical parameter matching
△ The leveling accuracy of the laser leveling machine must meet the design requirements (such as ±3mm/3m), providing a good foundation for the trowel.
△ The angle and speed of the trowel blade need to be adjusted according to the strength of the concrete to avoid over-grinding or under-grinding.
🎈 3. Precautions
Concrete maintenance
Cover and maintain in time after the operation is completed to prevent surface cracking.
Environmental factors
The operation interval should be shortened in hot and dry weather to avoid excessive water loss of concrete.
Equipment maintenance
The laser leveling machine needs to calibrate the laser transmitter regularly, and the trowel blade needs to clean the concrete residue in time.
Through reasonable process arrangement and equipment coordination, the quality and efficiency of concrete construction can be significantly improved, which is suitable for large-scale ground projects such as industrial plants, parking lots, and airport runways.
Share this article

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.
Previous Post
Next Post
Related Articles


