Differences
The Vibration Laser Screed relies on freshly poured concrete during leveling, so it is not recommended to use S5 or extra fluid S4 concrete with this device. With the Vibration Laser Screed, you can pour floors of any height—meaning the thickness of the concrete layer is not important. It can also be used to level other types of materials. If you have the strength—just pull. The force generated by the vibrating screed is directed in a way that reduces the operator’s pulling effort by approximately 30–40 kg. The up-and-down adjustment of the screed blade is automatic—the device adjusts the blade height itself, and the operator does not need to intervene.
The Fast Concrete Leveling Machine also relies on freshly poured concrete during leveling, so it is not recommended to use fluid S4 concrete, and it is not suitable for pouring very fluid S5 concrete. It can also be used to level other types of materials. The Fast machine is better suited for sand surfaces where there is too much excess material. It allows for easy and quick multiple passes to reach the desired height level. When pouring concrete, it is not recommended to level the surface more than twice with the Fast machine, as there is a risk of pulling the height too low (you should occasionally check with a laser receiver). The up-and-down adjustment of the screed blade is automatic—the device adjusts the blade height itself, and the operator does not need to intervene.
The Precise Concrete Leveling Machine rests on three points on the base surface of the poured concrete floor. Height compensation occurs afterward (first the device height changes, then the working unit is automatically adjusted back to the correct height). Therefore, this device is not the optimal choice for very uneven base surfaces with constant sharp up-and-down movements—for example, in the case of underfloor heating pipes. It is possible to pour, but this machine is not the best choice for that: the operator must choose a slow forward movement speed. With the Precise machine, you can pour floors with a concrete thickness of 20–200 mm. With the Fast machine, 0–300 mm. With the Vibration Laser Screed, the thickness of the concrete layer being leveled does not matter at all. The up-and-down adjustment of the working unit is automatic—the device adjusts the height itself, and the operator does not need to intervene.
Summary:
The Fast Concrete Leveling Machine and Vibration Laser Screed are suitable for leveling thicker, more viscous materials, while the Precise Concrete Leveling Machine is better for more fluid ones. When using the Fast and Vibration Laser Screed, the unevenness of the base surface is not critical. For the Precise machine, highly uneven surfaces are not recommended.