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Large-scale plastering projects in schools demand both speed and rigorous quality standards. Relying on traditional manual methods—even with a dozen or more workers toiling non-stop—would easily take three to five months to complete. The difficulty of recruiting labor, tight project deadlines, and inconsistent quality—these are the perennial challenges inherent in any large-scale plastering operation.

The Derutu plastering solution involves first spraying mortar evenly onto the wall surface, followed by using a plastering machine to level, smooth, and compact the mortar. This method achieves an adhesive strength more than double that of manual application, effectively eliminating the root cause of hollow spots (delamination), ensuring consistent quality upon inspection, and delivering high operational efficiency.

Next, I will share some real-world examples, which will give you a clearer, more intuitive understanding of the gap between human and machine performance.

PC18 Mortar Spraying Machine: The "Heavy Hitter" for Base-Coat Application

· Capable of spraying up to 1,000 m² per day.

· Provides more than double the bonding strength of manual plastering/slurry application.

· Features a large-pitch screw design that prevents hose clogging and ensures a steady material flow; supports a delivery distance of 50 meters, eliminating the need for frequent machine relocation.

· Equipped with a 92L large-capacity hopper and a vibrating screen to filter out large particles—ready for immediate use with on-site mortar, offering exceptional versatility.

DM Plastering Machine: A "Benchmark for Quality" in Precision Leveling

· Covers 800㎡ with ease in an 8-hour shift

· Microcomputer-controlled automatic vertical and horizontal leveling, keeping wall deviation within 2mm

· Modular design with a compact footprint, offering flexible operation on-site

· Simple enough for a general laborer to master with just half an hour of training

Derutu’s intelligent plastering solution effectively addresses three core challenges:

First, it ensures project timelines, boosting overall construction efficiency by 3–5 times compared to traditional manual methods. For interior plastering projects spanning tens of thousands of square meters, what once took months to complete can now be finished in weeks.

Second, it guarantees consistent quality. The primary advantage of mechanized construction is that it eliminates human variability—there’s no risk of uneven wall thickness due to a worker’s fluctuating technique, nor are there inconsistencies arising from changes in personnel. Throughout an entire building, the wall flatness and bond strength remain highly uniform, leading to a significant reduction in the need for remedial work.

Third, it keeps costs under control. The most immediate benefit is labor savings—tasks that previously required over a dozen workers can now be handled by just 3–4 people. Combined with reduced material waste and fewer requirements for rework, this leads to substantial overall cost savings on large-scale projects.

The shift toward intelligent construction is not a distant prospect—it is already underway. For large-scale interior plastering projects—such as those in schools, industrial facilities, or social housing—adopting mechanized construction sooner rather than later is the key to breaking the vicious cycle of labor shortages, tight deadlines, and inconsistent quality.

You have likely already formed your own opinion on mechanized construction; we invite you to visit a Derutu job site to see the technology in action and judge for yourself!