Innovation Drives Development, Quality Shapes The Future

1. The innovation-driven development path of Longchangjie Machinery

· Qingdao Longchangjie Machinery Co., Ltd. is a national-level specialized and innovative "little giant" enterprise. It has been deeply engaged in the field of polymer material processing equipment for 20 years. Its "hot-state continuous winding spherical head production line" breaks through the limitations of traditional mold forming technology. The patented technology (CN223045220U) achieves ±0.1mm dynamic balance accuracy through a rotating support structure, combined with an intelligent cutting system guided by AI vision, increasing production efficiency by 40% and the yield rate to 99.2%. The company has established a three-level R&D system of "basic research - application development - process optimization", with product matrices covering PE silicone core sheath pipes (annual production capacity of 500,000 meters), PPH winding storage tanks (maximum volume of 300m³) and other special equipment. The DN3000 large-diameter winding pipe production line adopts modular design, integrating the German Siemens S7-1500 PLC control system and nano-level steel-plastic composite interface treatment technology, filling the domestic gap in intelligent production of ultra-large-diameter pressure pipelines.

2. The full-process quality control system

· The company was the first in the industry to implement the ISO 18436 vibration monitoring standard. The quality traceability system covers 287 quality control points from the raw material entry of German BASF to the final delivery. It has introduced equipment such as the American Insitec MX6 composite gas detector, and implemented six sigma management in key processes, maintaining a 100% product qualification rate for five consecutive years. In terms of green manufacturing, the water-based coating spraying process independently developed has passed the EU REACH certification, with VOC emissions reduced by 65% compared to national standards. The 3.6MW distributed photovoltaic project planned for 2025 grid connection can achieve annual carbon dioxide emission reduction of 2,800 tons. In addition, the company is collaborating with Tsinghua University to develop a predictive maintenance system based on digital twins, further strengthening the forward-looking nature of quality control.

3. Market expansion and industrial synergy

· Through the "EPC+O" model (design - procurement - construction + operation), the company has provided 76 customized solutions for leading enterprises such as Sinopec and Beijing Control Water, and has a market share of the municipal drainage field ranking first in East China. The Chongqing Jiangjin base is equipped with a 5G + industrial internet platform, achieving a 18-hour rapid response from order placement to logistics distribution; the Jiangsu Yizheng base focuses on the layout of chemical corrosion equipment, forming a synergy with the Yangzhou Petrochemical industrial belt. In terms of cluster construction, the company is the chairperson unit of the Sichuan Longchang Equipment Manufacturing Alliance, leading the formulation of the "winding composite pipeline production technical specification" group standard. Its rail transit boron steel bolt products have an tensile strength of 1500MPa, successfully applied to key projects such as Chengdu Metro Line 18.