Since 1994
Market context: Bangladesh's concrete-block transition (2021) By 2021, Bangladesh's construction sector was in a sustained upswing — urban housing in Dhaka and Chittagong, rural infrastructure, and major connectors such as the Padma Bridge project drove steady demand for masonry units. At the same time, environmental regulation and air-quality pressure were pushing the market away from traditional fired clay bricks toward compliant concrete hollow blocks, standard bricks, and paver bricks for roads and landscaping. Producers who could deliver all three locally held a clear edge. Core pain points before the upgrade Rising labor cost and scarcity. Skilled block-machine operators were hard to hire and retain as wages climbed across the Dhaka belt, squeezing our margin on every batch. Unreliable power and high tariffs. Grid instability and load-shedding meant a high-power line risked frequent stops; electricity was also our second-largest operating cost. Compliance pressure on clay bricks. Restrictions on inefficient clay kilns were tightening, and our buyers increasingly specified concrete masonry — we risked being locked out of larger tenders. Low output and inconsistent quality. Manual and basic earlier methods produced variable-density blocks with high reject rates, limiting the sizes and volumes we could safely quote. We needed one machine that was power-efficient, simple to run, durable under local conditions, and flexible enough to make hollow, standard, and paver bricks on a single line.
The Solution: Dongyue QT4-15 Automatic Block Making Machine After comparing suppliers in 2021, we selected the QT4-15 — a semi-automatic machine built for medium brick plants, especially strong on standard-brick output, and capable of producing hollow, standard, and paver bricks by changing molds. Low power, grid-friendly. At just 24.95 kW installed, the QT4-15 rides out load-shedding better than heavier lines and keeps our electricity bill down — directly answering our two biggest cost worries. Three products, one line. Quick mold change delivers hollow blocks, standard bricks, and paver bricks, so we cover residential, institutional, and road/landscape orders without a second machine. Consistent quality. 42.5 kN excitation with table-vibration + hydraulic pressure and 360° rotating feeding gives uniform density and clean edges — rejects dropped sharply. Durable mold, simple upkeep. Carburized, heat-treated molds run ~4 million standard bricks before deformation (6–8 months life); the semi-auto design needs fewer specialist operators.
"Dongyue's QT4-15 has been the backbone of our plant since 2021. It is economical on power, simple to run, and produces consistent hollow, standard and paver bricks. The installation and training were smooth, and support has been dependable. For a Bangladeshi producer, the value-for-money is excellent in this class."
EN
Request Quote
Download PDF