Why Can UNIK's Pipe Pile Equipment Complete a DN600 Drainage Pipe in Just 3 Minutes?
In the production of reinforced concrete drainage pipes, production efficiency directly affects project delivery capability and overall costs. In traditional pipe production processes – whether centrifugal or suspension roller methods – the forming time for a single pipe typically ranges from 8 to 15 minutes, with high dependence on operator experience. UNIK Machinery's, launched for the global market, compresses the forming time for a DN600mm drainage pipe with a length of 3 meters to just 3 minutes. Behind this speed lies the coordinated support of multiple core technologies.
1. Vertical Layout: The Dual Action of Gravity and Extrusion Pressure
Unlike traditional horizontal suspension roller pipe making machines, UNIK's vertical radial extrusion pipe making machine adopts a vertical production method. Concrete is fed from the top of the pipe mold, flowing downward under gravity to fill the mold cavity, while the extrusion head applies outward radial extrusion pressure and downward compaction pressure during rotation. The dual action of gravity and extrusion pressure allows the concrete to complete filling and compaction in a shorter time, significantly shortening the single‑pipe forming cycle.
2. Precision Fit of the Extrusion Head: One‑Step Forming Without Repeated Rolling
The core of the radial extrusion pipe making machine lies in the precise fit between the extrusion head and the inner diameter of the pipe mold. The outer diameter of the extrusion head is essentially consistent with the inner diameter of the pipe. During the rotating lifting process, the extrusion head applies a single, powerful extrusion and smoothing action to the concrete, forming the pipe wall in one step with a smooth surface. Compared with the suspension roller method, which requires repeated rolling and gradual compaction, the "one‑step forming" characteristic of the radial extrusion method significantly improves production efficiency.
3. Variable Frequency Speed Control: Precise Control of Rotation Speed and Lifting Speed
Improving production efficiency depends not only on mechanical structure but also on precise motion control. UNIK's vertical radial extrusion pipe making machine uses variable frequency speed control technology, allowing real‑time adjustment of the extrusion head's rotation speed and lifting speed according to different pipe diameters and different concrete slump values. Taking DN600 pipes as an example, the optimized combination of rotation speed and lifting speed, derived from extensive process experimentation, ensures that the concrete achieves the designed density at the moment the extrusion head passes through, without the need for secondary pressing.
4. Rapid Demolding: Mold Heating and Automatic Release Agent Spraying
The demolding stage is often an efficiency bottleneck in pipe production. UNIK equipment integrates a mold preheating system and an automatic release agent spraying device. Before each pipe is formed, the inner wall of the mold is evenly sprayed with release agent, while the mold is maintained at an appropriate temperature to reduce adhesion between the concrete and the mold wall. After pipe forming is completed, a hydraulic lifting system smoothly ejects the pipe from the mold, with the entire demolding process completed within seconds – no sticking, no damage.
5. Standard Compliance: Quality Endorsement by GB11836‑2023
Fast speed does not mean poor quality. Pipes produced by UNIK's vertical radial extrusion pipe making machine fully comply with the GB11836‑2023 national standard, with dense pipe walls, smooth inner and outer surfaces, and dimensional accuracy meeting requirements. This quality endorsement means that what is completed in 3 minutes is not just a "pipe" – it is a qualified product ready for direct use in engineering projects and capable of passing acceptance inspections.
To date, UNIK's vertical radial extrusion pipe making machines have been put into use in municipal drainage projects in multiple countries and regions across Southeast Asia, Africa, the Middle East, and beyond. Global customers are welcome to contact UNIK Machinery for customized pipe making equipment solutions tailored to your project requirements.