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Industrial High Precision EPS Pre-Expander Machine For EPS Block And Shape Molding

Industrial High Precision EPS Pre-Expander Machine For EPS Block And Shape Molding suppliers

Industrial High Precision EPS Pre-Expander Machine For EPS Block And Shape Molding factory

Industrial High Precision EPS Pre-Expander Machine For EPS Block And Shape Molding best

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Industrial High Precision EPS Pre-Expander Machine For EPS Block And Shape Molding

Boost your production capacity with our Automatic Continuous EPS Pre-expander. Ideal for high-demand foam factory equipment setups, this machine offers uninterrupted expansion, precise density management, and energy-saving performance for large-scale Styrofoam manufacturing.

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Hangzhou Fuyang Dongshan Plastic Machinery Co., Ltd. is one of the most reliable manufacturers and suppliers of industrial high precision eps pre-expander machine for eps block and shape molding in China, also supports customized service with low price. Welcome to wholesale high quality industrial high precision eps pre-expander machine for eps block and shape molding for sale here from our factory. Contact us for pricelist.

Automatic EPS Continuous Pre-expander for Foam factory equipment

Core Technical Advantages

High-Throughput Continuous Operation

Designed for 24/7 production, the machine feeds raw pentane-infused beads into the expansion chamber and discharges them continuously. This eliminates the "start-stop" downtime associated with batch processing, significantly increasing daily yield.

Superior Density Uniformity

Equipped with a Frequency-Controlled Spindle and precise steam-to-air ratios, the machine ensures that every bead is expanded to a consistent density. This is vital for downstream molding quality, as uniform beads lead to better fusion and smoother product surfaces.

Advanced Thermal Management

Utilizing high-precision pressure-reducing valves (such as Yoshitake) and proportional steam control, the system maintains a highly stable temperature within the expansion chamber. This prevents "over-expansion" or bead clumping, even at low densities.

Integrated Fluidized Drying Bed

Immediately following expansion, the beads enter a Fluidized Bed with a high-power drying fan. This stabilizes the beads, removes residual moisture, and ensures they are "free-flowing" and ready for the aging silos.

Intelligent PLC Automation

The entire expansion process-including material feeding, steam injection, and bead discharge-is managed by a centralized PLC (e.g., Mitsubishi) with a touchscreen interface. Operators can make micro-adjustments to the density without halting production.

Features

Stable density control with ≤ ±3% 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.

The Dongshan High Precision EPS Batch Pre-Expander is engineered to deliver accurate, stable, and energy-efficient pre-expansion of EPS beads for modern foam manufacturing. Designed for manufacturers producing EPS insulation boards, packaging products, ICF blocks, and other high-performance EPS applications, it ensures consistent density, improved material quality, and higher production efficiency.

At the core of the machine is an intelligent density control system that automatically monitors and adjusts the expansion process in real time, ensuring every batch achieves the required density with excellent consistency. This significantly reduces density deviation, improves molding quality, and minimizes raw material waste.

The expansion chamber is manufactured from high-quality stainless steel, providing excellent corrosion resistance, efficient heat transfer, and a long service life. Combined with an advanced steam distribution system and steam recycling technology, the machine maximizes thermal efficiency while reducing steam consumption and operating costs.

Designed for continuous industrial production, the Dongshan High Precision EPS Batch Pre-Expander delivers reliable performance, low maintenance requirements, and outstanding operational stability. Whether integrated into a new turnkey EPS production line or upgrading an existing factory, it provides manufacturers with a dependable solution for producing high-quality EPS raw materials while improving productivity and reducing overall production costs.

Core Features

* High-precision density control for consistent EPS bead expansion

* Stainless steel expansion chamber with long service life

* Mitsubishi PLC automatic control system

* Automatic weighing and intelligent density feedback

* Steam recycling technology for lower energy consumption

* Korean vibration sensing system for accurate material level detection

* Stable batch production with high expansion consistency

* Easy operation, low maintenance, and reliable performance

Technical Specifications

Item		Unit	DSMAX1100B	DSMAX1400B	DSMAX1670B
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)
Drainage	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