Styrofoam Granule Expanding Machine
Vacuum cooling shortens cycle time significantly
Dual- barrel feeding enables continuous production;
High- precision proportional valves (Burkert / SMC);
Excellent density consistency for multi- weight production;
Designed for high-end EPS block & shape applications.
Hangzhou Fuyang Dongshan Plastic Machinery Co., Ltd. is one of the most reliable manufacturers and suppliers of styrofoam granule expanding machine in China, also supports customized service with low price. Welcome to wholesale high quality styrofoam granule expanding machine for sale here from our factory. Contact us for pricelist.
VSD Technology EPS Pre-Foaming Machine with Vacuum System for EPP Wine Box & Packaging
1. Commercial and Industrial System Identification
The highly optimized VSD Technology EPS Pre-Foaming Machine with Vacuum System for EPP Wine Box & Packaging represents a significant milestone in high-speed expandable polystyrene engineering. Built to operate continuously under intense industrial schedules, this system combines excellent mechanical durability with sophisticated digital control networks. Equipped with Vacuum System, it gives factories the exact operational control necessary to mass-produce premium-grade EPP Wine Box & Packaging with exceptionally low per-unit production costs.
Dongshan focus on maximizing your return on investment (ROI). By engineering the machine to minimize raw resin waste and optimize energy use, this machine turns standard materials into high-value components with unmatched repeatability and speed.
Critical Market Challenges vs. Dongshan Solutions
To succeed in high-volume markets, manufacturers must eliminate common processing inefficiencies. This system provides
direct solutions to the industry's most common pain points
Material Loss During Startup & Shutdown
Standard machines waste significant amounts of raw material during calibration cycles.
Dongshan Solution: Automated pre-heating routines bring the expansion chamber to exact operating temperatures before resin enters, eliminating initial scrap.
Excessive Electric Power Consumption
Running heavy fluid beds and heavy material transfer blowers can cause high
electrical utility spikes.
Dongshan Solution: Optional variable frequency drives (VFD) adjust motor speeds based on realtime load requirements, cutting power use by up to 30%
Inconsistent Material Feeding
Clumpy or irregular raw material delivery can disrupt expansion cycles and cause
uneven densities.
Dongshan Solution: High-precision vibrating feeding screens ensure smooth, steady raw material flow
into the expansion chamber.
Advanced Engineering Data Specifications
| Engineering Evaluation Metric | System Operational Standards |
| Core Automation Control Architecture | Vacuum System |
| Primary Target Application Field | High-Performance EPP Wine Box & Packaging |
| Average Electrical Power Draw | 15 kW - 22 kW depending on VSD configurations |
| Production Throughput Scope | 400 to 1400 kg/h operational performance |
| Chamber Expansion Volume Size | Customizable from 1.5 to 3.5 Cubic Meters |
| Material Discharge Mechanism | Pneumatically regulated quick-release valve with safety lock |
Production Throughput, Efficiencies, and Controls
By leveraging Vacuum System, the machine achieves high operational speeds while keeping energy consumption down. The internal expansion chamber features polished stainless steel surfaces to prevent beads from sticking, maximizing material yield. Advanced diagnostics track your steam, air, and electrical usage, providing managers with clear data to optimize floor efficiency.
Features
- Stable density control with ≤ ±1% tolerance;
- Closed constant- pressure foaming, suitable for high altitude areas;
- High- quality hot air drying system for uniform beads;
- International brand components ensure long service life;
- Easy operation with PLC & recipe memory Advantages.
Frequency spindle
The spindle rotation speed can be adjusted according to the raw material process, for ensuring that the material leve can control the expanding weight precisely.
Steam system
Adopt relief valve from YOSHITAKE,Japan, with high- precision drainage valve and filter to ensure steam pressure more stable.
Pressure control
International pressure sensor, German BATTON angle- seat valve and multi- valve exhaust system are used to ensure constant temperature and pressure expanding in the bucket, make sure the expanding process more stable and accurate.
Temperature control
The international temperature sensor and German BATTON steam and air dual proportional valve are used to control the temperature, so maintain the precise expanding temperature, for high – density expanding.
Weighing and feeding
Electronic weighing for feeding, and the feeding weight is setup on the touch screen. The weighing device will automatically weigh to achieve accurate feeding.
Material level control
Adopt the vibration sensor from Korea to control expanding material level precisely, ensuring the uniform density of raw material particles.
Material level of fluidizer bed: the height of material level can be adjusted to ensure the aging effect of expanded particles.
Flap feeding device of fluidizer bed ensure the high efficiency of expanding particle feeding .
3. Dongshan Advanced Engineered Solutions & Core Performance
At the center of the machine is the heavy-walled expansion chamber manufactured entirely from SUS304 high-grade
stainless steel to prevent thermal warping and aggressive localized corrosion. The integration of Proportional Valve System
enables complete oversight over the multi-stage swelling cycle. Our proprietary vapor management protocol precisely meters
saturated dry steam, ensuring that each chemical bead receives a uniform thermal dosage from its core to its outer perimeter
Technical Specifications
| Item | Unit | DSMAX1100 | DSMAX1400 | DSMAX1670 | |
| Expand Chamber | Chamber | mm | φ1100×1700 | φ1400×1800 | φ1670×2240 |
| Volume | m³ | 1.3 | 2.7 | 4.8 | |
| Effective Volume | m³ | 1 | 2 | 3.5 | |
| Steam | Inlet | inch | 2"(DN50) | 2"(DN50) | 2.5"(DN65) |
| Consumplion | kg/cycle | 6-9 | 8-11 | 11~14 | |
| Pressure | Mpa | 0.5-0.8 | 0.5-0.8 | 0.5-0.8 | |
| Compressed Air | Inlet | inch | 2"(DN50) | 2"(DN50) | 2"(DN50) |
| Consumplion | m³cyce | 0.5-0.8 | 0.6-0.9 | 0.7-1.1 | |
| Pressure | Mpa | 0.5-0.8 | 0.5-0.8 | 0.5-0.8 | |
| Drainage | Upper Vent | inch | 4"(DN100) | 5"(DN125) | 6'(DN150) |
| Down Vent | inch | 4"(DN100) | 5"(DN125) | 6'(DN150) | |
| Capacity | 12g/m³ | KG | 400 | 640 | 960 |
| 16g/m³ | KG | 500 | 840 | 1700 | |
| 20g/m³ | KG | 700 | 1000 | 1900 | |
| 25g/m³ | KG | 800 | 1250 | 2100 | |
| Total Power | KW | 21.4 | 24.9 | 31.9 | |
| Expanding Pipe | mm | φ150 | φ200 | φ250 | |
| Expanding Tolerance(20Kg/m) | % | ±2% | ±2% | ±2.5% | |
| Overall Size(L×W×H) | mm | 6400×3800×5200 | 8300×3300×5700 | 11000×4000×6000 | |
| Weight | KG | 3500 | 5500 | 6500 | |
Product Applications
Building Insulation Field
Packaging Industry
Advertising and Decoration Industry
Cold Chain Logistics Field
Other Fields
Why Choose Us
What We Can Do For You
At DONGSHAN EPS EPP MACHINERY, we are more than just a machine supplier - we are your long-term production partner.
With over 30 years of experience in the EPS and EPP industry, we provide complete solutions designed to help customers improve production efficiency, reduce operating costs, and achieve stable long-term business growth.
Complete Turnkey EPS & EPP Factory Solutions
From factory layout planning to machine installation and production support, we provide one-stop turnkey solutions tailored to your production needs.
High-Quality & Reliable Machinery
We manufacture advanced EPS and EPP machines with strong structures, premium configurations, intelligent control systems, and stable long-term performance.
Improve Your Production Efficiency
Our high-performance machines help customers increase output, shorten production cycles, and improve overall factory productivity.
Reduce Your Production Costs
Through energy-saving technology and optimized system design, our machines help reduce steam consumption, power usage, and labor costs.
Fully Automatic Smart Production
DONGSHAN machines feature advanced PLC automation systems for easier operation, stable production control, and intelligent factory management.
Professional Technical Support
Our experienced engineering team provides installation guidance, operator training, technical consultation, and fast after-sales service support.
Customized Solutions for Different Markets
We understand that every customer has different production requirements. DONGSHAN can customize machine configurations and production solutions based on your products, capacity, and market demands.
Long-Term Cooperation & Service
We focus not only on selling machines, but also on building long-term partnerships by helping customers continuously improve production performance and market competitiveness.
DONGSHAN EPS EPP MACHINERY - Helping You Build a More Efficient, Profitable, and Intelligent EPS Production Future.
Certifications and Awards
the workshop show
Exhibitions with Global Customers
Our Service
Dongshan EPS Machine ServicesProfessional Pre-Sales, In-Sales & After-Sales Support for Global EPS Manufacturers
Pre-Sales
Technical Consultation
Customized Solutions
Quotation & Project Planning
In-Sales
Factory Tour
Installation Guidance
Operation Training
After-Sales
Technical Support
Spare Parts Supply
Overseas Service
Turnkey EPS Production Line layout design service:
Package and shipment
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