High Efficiency EPS Beads Pre Expander For Insulation Sheets
Expanding Chamber:1.3m3
Steam Consumplion: 6-9kg/m3
Production Capacity:400-500kg/h at Density 15kg/m3
CE,ISO Certificate
PLC Control system
Fully Automatic Production
Hangzhou Fuyang Dongshan Plastic Machinery Co., Ltd. is one of the most reliable manufacturers and suppliers of high efficiency eps beads pre expander for insulation sheets in China, also supports customized service with low price. Welcome to wholesale high quality high efficiency eps beads pre expander for insulation sheets for sale here from our factory. Contact us for pricelist.
High Efficiency EPS Beads Pre Expander with Biomass Steam Integration for Insulation Sheets
Executive Product Overview
The High Efficiency EPS Beads Pre Expander with Biomass Steam Integration for Insulation Sheets represents the absolute state-of-the-art in advanced thermal processing technology for expandable polystyrene. Specifically engineered for industrial scale conversion, this machinery establishes a highly efficient bridge between raw resin bead preparation and down-stream shape or block moulding systems. By utilizing advanced Biomass Steam Integration, the machine satisfies the extremely strict density consistency constraints required for manufacturing top-grade Insulation Sheets. In modern industrial plastic processing, raw bead foaming remains the single most critical stage governing final product performance, material cost overheads, and overall manufacturing reject rates. Dongshan's engineering design approaches this from a total-system perspective-delivering optimized steam fluidization dynamics, structural resilience, and an advanced software architecture that transforms what was traditionally an unpredictable chemical processing stage into a fully predictable, closed-loop industrial science.

Addressing Global Buyer Pain Points
Global manufacturing facilities face severe, compounding operational bottlenecks when utilizing standard, lower-tier prefoaming equipment. Dongshan has engineered this line to systematically eradicate these universal industry challenges:
1. Density Fluctuation & Material Waste: Inconsistent steam pressure and inaccurate raw bead dosing lead to extreme density variances. A variance of even 1g/L can result in thousands of dollars in lost profit margins or structural failure in the end-market. Dongshan Solution: Our precision gravimetric dosing paired with micro-second valve control locks variance to within ±1%.
2. Exorbitant Energy Overhead: Traditional pre-expanders lose over 35% of thermal energy due to poorly insulated chambers and un-recycled steam venting. Dongshan Solution: Heavy cylindrical chamber insulation combined with integrated thermal recovery cuts direct steam costs drastically.
3. Bead Agglomeration & Clogging: High-density or fast-cycling expansion often leads to melted clumps of resin blocking discharge ports, causing extensive downtime. Dongshan Solution: Specialized internal multi-tier fluid agitation systems coupled with immediate fluid-bed stabilization prevents clumping entirely

Comprehensive Technical Matrix
| Operational Variable | Industrial Specification Parameter |
| Machine Architecture Model | Dongshan High-Performance Industrial Series |
| Core Automation Module | Biomass Steam Integration |
| Primary Target Output | Premium Quality Insulation Sheets |
| Rated Steam Energy Consumption | 12 - 15 kg/ton of raw material (Optimized Input) |
| Volumetric Cycle Output Capacity | Up to 450 - 1200 kg/hour (Based on Target Density) |
| Density Uniformity Threshold | Standard Deviation ≤ 0.15 g/L across batch testing |
| Compressed Air Feed Request | 0.6 - 0.8 Mpa Operational Pressure |
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 .
Crushing device at bottom of fluidizer bed: to ensure convenient clean of fluidizer bed.
Mark
1. automatic weighing system of density is optional.
2. X-1400, X- 1670 second expandable function is optional.




Production Data & Consumption Metrics
Efficiency is verified by clear, verifiable engineering data. This machine delivers an exceptional energy-to-output ratio, making
it an excellent investment for sustainable manufacturing frameworks:
Production Capacity:
Generates highly stable volumes ranging from 300 to 1500 kg per hour depending on customized
material recipes
Steam Efficiency Data:
Consumes approximately 15% less steam per cycle compared to conventional multi-batch
expanders.
Labor Efficiency Optimization:
Full-process automation requires only a single technician to supervise multiple synchronized lines, reducing long-term factory labor costs.
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 Biomass Steam
Integration 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

Hot Tags: high efficiency eps beads pre expander for insulation sheets, China high efficiency eps beads pre expander for insulation sheets manufacturers, suppliers, factory, Automatic EPSPre Expander, EPS Beads Expanding Machine, eps pre expander, High Precise EPS Batch Pre expander, Particle Foam Processing Machine, Styrofoam EPS Pre Expanding Machine
You Might Also Like
Send Inquiry














