Doubling Production Capacity—Application of the Type 20 Trommel Screen in Small and Medium-Sized Sand Plants

A certain small-to-medium-sized sand and gravel plant previously used a process of “manual screening + small vibrating screens,” which long faced three major challenges: low screening efficiency, severe loss of fine sand, and frequent screen clogging caused by high-moisture materials. These issues led to limited production capacity and constant maintenance.

Upgrade Solution

The Type 20 Trommel Screen was introduced and quickly integrated into the production line:

The equipment was directly connected to the existing production line, utilizing a flexible feed hopper to accommodate loader feeding, eliminating the need for complex feeding infrastructure; installation to commissioning took only one day, achieving “same-day commissioning, same-day operation.”

Key Results

Production Capacity Surge: Hourly throughput increased from 20 metric tons to 40 metric tons, with daily production capacity consistently exceeding 300 metric tons;

Quality Optimization: Clear grading of coarse, medium, and fine sand; fine sand recovery rate increased by 15%; finished product gradation fully meets commercial concrete plant standards;

Stability and Reliability: A durable gearbox ensures continuous operation; no core transmission failures in six months of operation; the sealed structure effectively prevents dust ingress; maintenance requires only quick disassembly and cleaning of the screen, reducing maintenance costs by 40% compared to the old equipment;

Service Support: A one-year warranty on the entire machine, completely eliminating frequent downtime for repairs.

Benchmark Significance: This retrofit addresses common pain points faced by small and medium-sized sand plants through low investment, rapid delivery, and high returns, and has become a model case for screening upgrades in the region.

Summary

With its three key advantages—“quick installation and rapid production, efficiency gains and cost reduction, and stability and durability”—the Model 20 Trommel Screen enables small and medium-sized sand and gravel plants to complete their upgrades in a single day. It doubles production capacity, improves fine sand recovery, and cuts maintenance costs in half, completely reversing the situation of reactive production. It is the preferred solution for screening upgrades, offering a low barrier to entry and high returns.