EPS Vacuum Pre-Expander Machine - High Precision Equipment

Advanced Industrial Control System for Optimized EPS Production

The SPJ-120Z high-precision vacuum pre-expander is designed with state-of-the-art technology to enhance efficiency and precision in EPS production. Utilizing an industrial IPC and object-oriented programming, this machine ensures intelligent control over the entire operation process, reducing raw material caking and masterbatch issues, even under extreme conditions.

Consistent and Accurate Control

• Equipped with a PID control system comprising precision proportional valves and temperature and pressure sensors.
• Ensures constant pressure and temperature for accurate and stable heating processes.
• Vibration sensor material level control guarantees consistent gram weight of EPS beads with an error margin of ≤±1% (12~25g/L).

Enhanced Raw Material Utilization

The machine features a density weighing feedback system, intelligently adjusting raw material gram weight deviations to improve the utilization rate of EPS materials.

Efficient Vacuum Drying and Aging

• Vacuum drying quickly reduces foaming agents and moisture content post pre-expansion.
• Shortens raw material aging cycle (13g/L~25g/L) to 2-4 hours.
• Ensures smooth and elastic EPS beads, saving steam and enhancing product appearance quality.

Comprehensive Data Management

The SPJ-120Z provides database, network, and printer functions, allowing access to foaming formula parameters, production data, and alarms via USB or the Internet, with real-time printing available. Real-time silo feeding monitoring minimizes blockages from valve sensor failures in customer's silo systems.

Durable and Reliable Construction

Constructed with 304 stainless steel for all raw material contact parts and a stainless steel pipeline system. All valve sensor electrical components are from internationally renowned brands, ensuring durability and reliability.

Technical Specifications

• Effective Volume: Material levels ranging from 0.678 to 1.356 M³
• Air Source Pressure: ≤0.4-0.6 MPa
• Compressed Gas Work Pressure: 0.6-0.8 MPa
• Total Installed Power: 28 KW
• Production Efficiency (302 raw materials): Ranges from 600-1450 kg depending on density
• Weight Error: ≤±0.5%
• Floor Space: 3210×5560×6100 m
• Weight: 5 T

Premium Electrical System and Components

The SPJ-120Z is outfitted with top-tier industrial computers, touchscreens, and modules by SIGMATEK, circuit breakers by Schneider, and more, ensuring a long-lasting and efficient operation.

Innovative Processes for Optimal Output

• PLC and human-touch control system for automatic operation and easy maintenance.
• Electronic weighing and photoelectric level control for precise expandable material weight.
• High-precision pilot pressure reducing valve ensures constant temperature and pressure.
• Closed constant pressure foaming suitable for high altitude anoxic areas.
• Automatic compressed air discharge for seamless production.