The pre-expander forms the basis for further processing of EPS, it is the result of logical experience of physical processes in machine technology, intensive exchange of knowledge with users and raw material suppliers.

Advanced programming control system, highly user friendly, perfect automation of production
Fully computerized memory, recording of massive settings.
Multiple safety assurances , enhanced protection of operators.
Precise weighing system, European standard weighing system is available, ensuring the accuracy from the very beginning.
Perfect sealing and chamber pressure stabilizing, highly efficient heat transition, energy saving up to 50% comparing to continuous pre-expander.
Adopting best quality valves, electronic devices, to make sure stable, reliable and long lasting production.
Automatic sensor for material level control, fully automatic density monitoring and control device, make the products with even density.
Perfect sealing and drying system
Faster discharging of pre-expanded materials by compressed air.
Drying system including fluidized bed drier is optional.
High throughouts at low energy consumption
Second pass version is available.

Models

Subjects	unit	WB-YF-500-A	WB-YF-1100-A	WB-YF-1600-A
(Length)	mm	3000	1780	1850
(Wide)	mm	3780	3220	1850
(Height)	mm	3280	4250	5680
weight	Kg	≈1200	≈2500	≈3500

this information is for reference only, further details to be confirmed with the company.

energy consumption

models	unit	WB-YF-500-A	WB-YF-1100-A	WB-YF-1600-A
steam consumption	Kg/cycle	2.5-5	4-8	10-17
air consumption	m3/cycle	0.4-0.8	1 -2	1.2-2.5
power consumption	KW	3.1	9.6	19.8

functioning

subjects	WB-YF-500-A		WB-YF-1100-A		WB-YF-1600-A
expansion rate	12-14g/l		12-30g/l		12-33g/l
productivity	12 g/l	70-90 kg/h	12 g/l	150-200kg/h	12 g/l	550-680 kg/h
	18 g/l	100-130 kg/h	18 g/l	250-300 kg/h	18 g/l	700-850 kg/h
	20 g/l	150-180 kg/h	20 g/l	320-380 kg/h	20 g/l	900-1000 kg/h
	35 g/l	200-230 kg/h	30 g/l	410-500 kg/h	30 g/l	1200-1300kg/h

instruction

subjects		unit	WB-YF-500-A	WB-YF-1100-A	WB-YF-1600-A
chamber	diameter	mm	φ500	φ1100	φ1600
	height	mm	1000	1500	2500
	size	m3	0.1963	1.4255	5.0265
steam	entry	mm	φ25	φ50	φ50
steam	Entry pressure	MPa	0.4-0.8	0.4-0.8	0.4-0.8
compressed air	Entry	mm	φ25	φ40	φ50
compressed air	Entry pressure	MPa	0.4-0.8	0.4-0.8	0.4-0.8
Drainage	motor	mm	φ65	φ80	φ100
Drainage	Drainage	mm	φ65	φ80	φ100
density calculation		--	density calculation	density calculation	density calculation
density tolerance		--	＜±3%	＜±3%	＜±3%
spinning motor		KW	1.1	4	11

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