Production Case of QT4‑15S Automatic hollow Brick Making Machine (Focus on Hollow Blocks)

Project Overview

Machine Model: QT4‑15S Automatic hollow Brick Making Machine

Main Product: Concrete hollow blocks

Raw Materials: Crushed stone, river sand, stone dust and cement. Fly ash, cinder, tailing sand and other industrial solid‑waste materials are acceptable. Non‑fired, natural air curing.

Production Capacity: 4 pcs hollow blocks per mould, molding cycle 15‑20 seconds. Output reaches 5760‑7680 hollow blocks within 8 working hours. Pallet size:900×550mm. Equipped with automatic feeding and brick‑discharging system plus simple pallet warehouse to reduce labor workload.

Project Position: Manufacture non‑load‑bearing wall blocks for rural housing, partition walls and fence construction. Hollow block is the core product. Solid bricks, porous bricks, pavers and slope‑protection blocks are available by changing moulds.

Site Introduction

Complete production line includes QT4‑15S main unit, aggregate bin, mixing system, belt conveyor, hydraulic station and PLC control console. Total power 21.75KW, machine weight 4000‑4500kg. It adopts integrated table‑mould high‑frequency vibration (exciting force 50KN) and hydraulic pressing at 16 MPa rated pressure. Vibration distributes evenly for full cavity filling, reducing surface defects such as insufficient material and pitting.

Only 3‑4 workers are required for batching, machine monitoring, pallet handling and stacking fresh blocks. New‑demoulded hollow blocks on pallets go through 7‑10‑day outdoor natural curing before delivery. Hollow‑block mould keeps installed for continuous mass production.

Advantages for Hollow Block Production

1. Reliable hollow‑block quality. Synchronized table‑mould vibration delivers neat cavities, uniform wall thickness and high density, lowering reject rate of broken or chipped blocks.

2. Market‑oriented output. 4 hollow blocks per 15‑20 s cycle, well‑suited for mass‑production at small‑medium brick plants for wall‑material orders.

3. Versatile raw‑material options. Fly ash, cinder and tailing sand can be utilized to cut cost and meet environmental‑protection requirements.

4. Durable for continuous production. Optimized hydraulic system runs stably for long‑term hollow‑block manufacturing. Small footprint and simple foundation bring reasonable investment for small‑scale investors.

5. Flexible multi‑product capability. Quick mould replacement supports solid bricks, paving blocks and ecological blocks to adapt to market changes.

Customer Feedback

This customer supplies concrete hollow blocks for local construction projects. The qualified rate of hollow blocks stays above 95% after commissioning. QT4‑15S runs smoothly with low failure rate. Finished hollow blocks are light‑weight with good heat‑insulation and sound‑insulation performance and sell steadily. The client comments QT4‑15S is cost‑effective for small‑and‑medium brick factories focusing on hollow‑block manufacturing, capable of stable local wall‑block supply.