EN
- Overview
- Recommended Products
1. The automation phase of the beads expansion is accomplished by loading the EPS beads into the feeder, expansion of the EPS beads, the expanded EPS beads will then enter the fluidized bed (optional), and then go through the Centrifugal Fan and Conveying device to be transported into the Aging Silos;
2. The machine's feeder system includes the first-phase and second-phase feeders. The first-phase feeder uses the transformer to regulate the feeding speed, the second-phase feeder uses the method of movement rail and wind pipe to blow the EPS Beads to cool down the temperature, ensuring that feeding is stable;
3. To accomplish the automatic feeding, the Photoelectric Switch should control the level of the EPS beads in the Automatic Negative Pressure Feeder - Optional
1. The company workshop 40,000 square meters, has introduced the first-class multi-station machining center, CNC lathes, CNC milling machines and other high-precision processing equipment. Such as the value of 4.5 million yuan 3mx8m gantry machining center, and the value of 300 million yuan 2.5 mx12m gantry milling machine.
2. The company has a professional The Adjuster team, 24 hours to provide uninterrupted after-sales service.
(1) Installation and debugging
Equipment arrived at the customer workshop, according to the flat layout of our equipment. We will arrange experienced technicians to install, debug and test-produce the equipment, and make the equipment reach the rated production capacity of the production line.
(2) Training
Our company provides technical training for our customers. The training includes the structure and maintenance of the equipment, the control and operation of the equipment, experienced technicians will guide and establish the training program. After training, the buyer's technical personnel can master the operation and maintenance of the equipment, can adjust the process and deal with different failures.
3. After-sales quality problems within 2 hours to answer, if the telephone video guidance can not be solved, domestic 24 hours to send engineers to the site to solve the problem
4. Factory direct sales price concessions, 40,000 square meters factory, 20 years of Export Enterprises, CE certification, patents more than 100 items
Shanghai Zhongji Machinery Co., Ltd. was founded in 1992. We manufacture EPS, EPP, 3D Panel and PU Sandwich Panel Production Lines.
We are the first drafter of the China National Standards for 3D Panel.
We cooperated with a German manufacturer where the first EPS block molding machine in the world was produced in 1960.
We have a joint venture with Alessio Hi-tech, a leading Italian company for shape molding and pre expansion technology of EPS and EPP.
We have Korean Hi-tech for continuous sandwich panel line with core in Polyurethane, Mineral Wool, Phenolic or EPS. Ten overseas branch offices are responsible for the worldwide sales and after-sales services.
We warmly welcome friends and all those who are interested in our products and services to visit our factories in Shanghai, China.
Shanghaizhongji presents the High-performance EPS Continuous Pre-Expander, a robust and reliable solution designed to transform modern foam production lines with superior throughput, consistent bead quality and reduced operational costs. The High-performance EPS Continuous Pre-Expander integrates decades of engineering insight into an industrial platform built for uninterrupted operation. For manufacturers who demand the benefits of a scalable automated EPS production workflow, Shanghaizhongji’s High-performance EPS Continuous Pre-Expander is engineered to deliver precise control, streamlined maintenance and measurable energy savings.
Designed for continuous operation, the EPS Continuous Pre-Expander offers a balanced combination of efficiency and performance. As a high-performance pre-expander, the unit optimizes bead expansion by tightly controlling steam flow, residence time and mechanical agitation. The EPS Continuous Pre-Expander uses a modular chamber design to maintain consistent heat transfer to raw beads, enabling uniform cell structure and predictable molding behavior downstream. The high-performance pre-expander’s variable-speed conveyors and adaptive agitation systems allow operators to tune the process for diverse EPS grades and variable raw material characteristics without sacrificing throughput.
Energy efficiency is a core advantage of this High-performance EPS Continuous Pre-Expander. The system’s heat recovery loops, insulated expansion chambers and precision steam metering reduce overall energy consumption across production cycles. In many installations the energy-efficient foam expansion achieved by this unit lowers steam usage and reduces boiler load, yielding direct cost savings. By integrating energy-efficient foam expansion technologies, the EPS Continuous Pre-Expander reduces thermal losses and supports sustainability goals while maintaining rapid cycle times. For plants focused on minimizing carbon footprint and operating expenses, the high-performance pre-expander delivers measurable improvements in both areas.
Automation is at the heart of Shanghaizhongji’s EPS Continuous Pre-Expander. This high-performance pre-expander is equipped with an advanced control system that enables automated EPS production with minimal operator intervention. The human-machine interface provides real-time monitoring of critical parameters such as bead density, steam pressure and residency time, and supports recipe-based control for repeatable results. Automated EPS production is facilitated by responsive actuators and smart sensors that detect and compensate for process drift, ensuring consistent product quality. Integration with factory control systems allows centralized supervision of multiple production lines, making the EPS Continuous Pre-Expander a natural choice for high-volume manufacturers.
Operational reliability is another distinguishing characteristic of Shanghaizhongji’s design. The High-performance EPS Continuous Pre-Expander uses robust materials and precision-engineered components to withstand the rigors of continuous industrial use. Easy-access maintenance points, modular spare parts and predictive maintenance algorithms built into the control software reduce downtime and streamline service tasks. The high-performance pre-expander’s mechanical simplicity where possible, combined with sensible automation, reduces the likelihood of unplanned stoppages and supports high equipment availability.
Quality outcomes from the EPS Continuous Pre-Expander are evident in both bead uniformity and downstream molding performance. Controlled steam distribution and consistent mixing produce beads with a narrow density distribution, which translates into predictable expansion ratios and higher yields in molding processes. As a high-performance pre-expander, the unit minimizes bead defects and irregularities that can lead to waste or additional rework. Manufacturers benefit from improved dimensional stability and enhanced mechanical properties in the finished EPS parts, whether producing thermal insulation panels, packaging inserts or structural lightweight components.
Flexibility is built into the High-performance EPS Continuous Pre-Expander to accommodate different production scales and product portfolios. The system supports a range of throughput capacities, making it suitable for both large plants and medium-sized facilities looking to scale. Adaptable process modules allow quick transitions between product recipes and support the expansion of production lines as market demand grows. For operations seeking to implement automated EPS production across multiple product lines, the EPS Continuous Pre-Expander provides a consistent platform that simplifies operator training and process standardization.
Safety and regulatory compliance are integrated into the design of the EPS Continuous Pre-Expander. The system includes interlocks, pressure relief devices and fail-safe shutdown routines to protect personnel and equipment during abnormal events. The high-performance pre-expander’s enclosed thermal systems and controlled steam handling minimize exposure to hazards and contribute to safer plant environments. Additionally, the energy-efficient foam expansion aspects of the design help companies meet increasingly stringent environmental regulations by reducing energy consumption and associated emissions.
From an economic perspective, the EPS Continuous Pre-Expander offers attractive total cost of ownership. Lower energy consumption, reduced scrap rates and higher throughput contribute to faster return on investment compared with legacy expansion equipment. The high-performance pre-expander also supports predictive maintenance and remote diagnostics, which cut service costs and improve uptime. With Shanghaizhongji’s global support network, customers gain access to parts, training and service expertise that maximize equipment lifecycle value.
In summary, the Shanghaizhongji High-performance EPS Continuous Pre-Expander is a high-performance pre-expander engineered for energy-efficient foam expansion and automated EPS production. It delivers consistent bead quality, scalable throughput and advanced automation, all while reducing operational costs and environmental impact. For manufacturers seeking a reliable solution to elevate EPS production, the EPS Continuous Pre-Expander offers a future-ready platform that balances innovation with practical operational advantages. Choose the High-performance EPS Continuous Pre-Expander from Shanghaizhongji to enhance efficiency, quality and sustainability in your EPS operations.
