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EPS Beads Expanding Machine

This high-capacity EPS particle foaming machine (pre-expander) is designed for large-scale EPS block molding plants. It features high production output, efficient bead expansion, and stable performance, ensuring uniform EPS foam particles for block molding. With reliable operation and optimized steam utilization, the machine improves production efficiency while maintaining consistent foam quality for industrial EPS manufacturing.

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

High Capacity EPS Particle Foaming machine foam Pre-Expander for EPS Block Molding Plants

Our EPS pre-foaming machine is a reliable, easy-to-use equipment designed for expanding polystyrene granules into uniform foam beads. CE-certified, it guarantees safe operation, stable performance, and long service life. Key features include precise density control, efficient steam expansion, and automatic feeding/discharging, which simplify operation and improve production efficiency. The machine uses energy-saving technology to reduce power and steam consumption, lowering production costs. It is compatible with most EPS granules on the market and can produce foam beads with density ranging from 15 to 60 kg/m³, suitable for packaging, insulation, and molding applications. The compact structure saves space, and the detachable components make maintenance convenient. Whether you are a small workshop or a large factory, this machine provides a practical and cost-effective pre-foaming solution, helping you produce high-quality foam beads with minimal effort and maximum efficiency.

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.

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.

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