Which Equipment Reflects a GRC Manufacturer's Automated Production Line? An Analysis of Smart Manufacturing and Qinglong Group's Hardware Configuration

A GRC manufacturer's automated production line is the physical foundation for ensuring quality, efficiency and consistency, embodied in four key pieces of equipment: the intelligent batching system, mechanical spraying unit, CNC forming equipment and programmable curing system. The German fully automatic production line introduced by Qinglong Group achieves unmanned operation throughout the entire process, from raw material feeding to finished product curing, with an automation rate exceeding 85% and a product pass rate stably maintained at 99.5%. This system is not merely an accumulation of hardware, but a deep integration of process know-how and intelligent control.

The intelligent batching and mixing system is the starting point. We use the German BHS twin-shaft forced mixer, combined with high-precision sensors and a PLC control system, to achieve fully automatic weighing and feeding of cement, sand, fibers, admixtures and water, with a batching error of ≤±0.5%. The system automatically fine-tunes the water dosage based on ambient temperature, humidity and raw material moisture content, ensuring a constant water-cement ratio. Mixing time and rotation speed are precisely controlled by the program, ensuring fiber dispersion uniformity of ≥95%—something manual or semi-automatic equipment cannot achieve.

The mechanical spraying and forming unit is the core. Qinglong Group uses six-axis linked robotic arms for spraying operations, whose motion trajectories, spraying angles and fiber output are all driven by digital models, ensuring consistent fiber content and orientation across every part of complex components. For flat panels, we are equipped with CNC vibrating platforms and vacuum dewatering devices to achieve high-density forming. Molds are precision-manufactured by five-axis CNC machining centers, with surface profile errors of ≤0.2mm.

The programmable curing system safeguards performance. Through multi-point temperature and humidity sensors and an automatic misting/heating system, our intelligent curing kiln precisely executes the "resting–heating–constant temperature–cooling" curing curve, with temperature control accuracy of ±2℃ and humidity of ≥95%. This system shortens the curing cycle by 30% and completely eliminates product performance fluctuations caused by human error. Inspecting a production line is, in essence, assessing a manufacturer's ability to understand and codify the essence of the craft.