Home / Products / EPS Pre-expander / Content

ESP Batch Pre-expander

This automatic EPS batch pre-expander machine is designed for efficient production of foam beads. It features high expansion efficiency, precise density control, and stable batch processing, ensuring uniform and consistent EPS beads. The machine uses advanced steam control and energy-saving technology to reduce energy consumption while maintaining high productivity. With reliable automatic operation and easy control, it is ideal for EPS manufacturers producing high-quality raw material for EPS block molding and shape molding applications.

Send Inquiry

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

High Efficiency Automatic EPS Batch Pre-Expander Machine for Foam Beads Production

This series of equipment features PLC and human-touch control, enabling automatic operation and easy maintenance. It supports fast process switching with computer memory function. Structurally, the weighing system is mounted on the barrel top, equipped with a high-quality closed hot air drying system; spare parts are from well-known brands, ensuring long service life.

Its processes include an electronic weighing system, photoelectric level control and automatic negative pressure filling device, ensuring accurate expandable material weight with a density error rate ≤3%. Advanced Japanese high-precision pilot pressure reducing valves control barrel temperature and steam pressure, keeping outlet pressure constant and temperature fluctuation within ±1℃.

Suitable for high-altitude anoxic areas, it adopts closed constant pressure foaming, compressed air blowing for automatic barrel discharge, and realizes one-time forming and circular production. It boasts high efficiency, low labor intensity, energy saving and low cost, available in models FDS1100, FDS1400 I-II and FDS1600 I-II.

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