Against the backdrop of tightened national environmental policies, improved standards for municipal pipeline engineering, and a surge in demand for large-scale production of pipes, the shortcomings of traditional hanging roller and centrifugal cement pipe making machines, such as low efficiency, poor environmental protection, and high labor costs, are becoming increasingly prominent. Radial press cement pipe making machines, with their four core advantages of high efficiency, environmental protection, automation, and high quality, have become the preferred equipment for technological upgrades in modern large-scale pipe factories, completely subverting the traditional pipe production mode.
The radial extrusion pipe making machine is different from the traditional rotary forming process, using mold fixation, internal mold vertical downward radial extrusion+high-frequency vibration composite forming technology. The core structure consists of a hydraulic host, extrusion head, vibration system, automatic feeding system, PLC intelligent control system, and opening and closing steel mold. The forming principle is as follows: a steel reinforcement skeleton is placed inside a fixed steel mold, an automatic feeding machine accurately inputs dry and hard concrete, the extrusion head descends vertically, and uniform hydraulic pressure is applied to the pipe wall. At the same time, the vibration system vibrates at high frequency to quickly discharge concrete bubbles, making the pipe wall density reach over 98%, with a thickness uniformity error of ≤ 2mm. After forming, it is quickly demolded, and single pipe forming only takes 8-12 minutes. The production efficiency is 40% and 60% higher than that of the hanging roller type.
Compared to traditional equipment, the advantages of radial extrusion pipe making machine have been upgraded in all aspects. Firstly, it has excellent environmental performance, using low water cement ratio dry hard concrete throughout the process, with no waste slurry or wastewater discharge, noise controlled within 80 decibels, and equipped with a dust spray system that fully meets the environmental acceptance standards of urban factory areas, avoiding the risk of production stoppage; Secondly, the automation level is extremely high, with the PLC intelligent control system achieving one click feeding, extrusion, vibration, and demolding. Only 23 workers are needed to operate a single line, reducing labor costs by more than 60% and allowing for 24-hour continuous operation; Thirdly, the quality of the pipes has been significantly improved, and the steel reinforcement protection layer is precise and controllable, without hollowing, layering, or honeycomb or rough surface. The anti-seepage level can reach P12, which is suitable for high standard projects such as sponge cities, sewage pipelines, and high-speed rail supporting facilities; Fourthly, the production cost is controllable, with fast molding speed, low energy consumption, and minimal mold loss. Under large-scale production, the comprehensive cost is reduced by 25% and 30% compared to traditional equipment.
This device is mainly suitable for DN300 1650mm reinforced concrete drainage pipes. Currently, the ultra large caliber DN2000mm model has achieved technological breakthroughs and its market penetration rate has been increasing year by year. For newly built large-scale pipe factories or upgrading old factory areas, radial extrusion pipe making machines are the optimal choice that balances production capacity, environmental protection, and quality, in line with the future development trend of intelligent, green, and large-scale industries.
