Extensive Scale Dual Heavy Precast Concrete Machinery Bases
Established in 2011, HLY Machinery (Qingzhou Heliyuan Machinery Co., Ltd.) operates two specialized heavy manufacturing plants in Shandong Province (Qingzhou Base) and Jiangsu Province (Yangzhou Base), covering Extensive of precision production workshops. We are a direct manufacturer of heavy-duty concrete pipe machines, rising core vibration forming lines, precision steel molds, and infrastructure formwork systems serving the heavy machinery sector.
Factory Tooling & Quality Infrastructure
We invest in heavy machine tools, laser cutting lines, and heat treatment furnaces to ensure structural integrity under extreme dynamic vibration.
20,000W Heavy Plate Fiber Laser Cutting
Sub-millimeter CNC cutting precision for Q235B and Q345B high-tensile steel plates up to 50mm thickness, ensuring minimized micro-cracks and precise weld joint alignment.
8-Meter Horizontal Heavy CNC Lathes
Precision turning of heavy suspension roller shafts and pipe mold drive rings up to 8000mm length, ensuring radial runout is kept under 0.05mm for vibration-free rotation.
600°C Thermal Stress-Relief Annealing
Every large-diameter steel pipe mold and heavy machine chassis undergoes full-chamber electric heat treatment to release residual welding stresses, preventing deformation.
Comprehensive Full-Load Continuous Trial Testing
Prior to overseas containerization, each concrete pipe machine runs for consecutive hours under mechanical load with vibration frequency and bearing thermal logging.
Inside Our Qingzhou Manufacturing Base
We don't just assemble; we manufacture from raw steel. Our expansive tooling workshops, precision CNC centers, and heavy-duty gantry crane yards ensure every piece of equipment meets strict global standards before export.
Schedule a Guided Factory Tour at Shandong or Jiangsu Plant
We warmly invite municipal contractors, precast plant owners, and civil engineering delegations internationally to inspect our production lines in Shandong (Qingzhou) or Jiangsu (Yangzhou), witness Extensive live trial runs, and inspect machine tolerances and raw steel materials in person.