EPS production defect, root cause and action plan

- Oct 28, 2018 -




Root cause

Action plan


Material block

Less coating of raw material

Raw material mix coating agent


There is small beads in the raw material

Use uniform raw material


Too high steam temperature

Decrease the temperature, and equipped with decompression valve


Too high expanding temperature

Decrease the temperature in the expanding vessel


Too much water in the steam

Equipped with drain valve in the steam pipe


The water was not discharged fully

Check the butter fly   valve and drain valve and change it if there is any problem


Expanded beads humidity

Too much water in the steam

Keep the temperature in the steam pipe, and equipped with drain valve


Bad ventilation of expanding vessel top cover

Improve the steam pipe or improve the ventilation of workshop


Poor heat preservation of expanding vessel

Improve the heat preservation of expanding vessel


Expanded beads shrink

Too high expanding rate

Choose the right expanding rate as per different raw material


Or to secondary expand the beads


High pressure and temperature of steam

Decrease the pressure and temperature


Room temperature too low

Equipped with drying bed or add hot wind to transfer the beads


Expanding time too long

Set up right expanding time

eps expanding machine.jpg

eps expanding machine.jpg 


Panasonic PLC.jpgFormula Storage  System.jpg
Panasonic PLCFormula Storage  System

Cabinet assembled professioally.jpgMain shaft and mixing rods.JPGTYPE YF3000 pre-expanding machine for one customer.jpgPID Valve from Germany.jpg
Cabinet Assembled 


Main Shaft And 

Mixing Rods

TYPE YF3000 Pre-expanding

 Machine For One Customer

PID Valve --Gemu

Side Discharge Door.jpgBottom Discharge Door.jpgPneumatic cabinet.jpg
Side Discharge DoorBottom Discharge DoorPneumatic Cabinet
Angle valves are all imported from Gemu Germany.jpgSpecially designed heating plates ensure the best heating.jpgSepcially designed brushing system ensures prefect brushing effect..jpg

Angle Valves Are All Imported 

From Gemu Germany

Specially Designed Heating Plates 

Ensure The Best Heating

Sepcially Designed Brushing System 

Ensures Prefect Brushing Effect

Leveling sensor control box.jpgLoading for shipment.jpgShipment to the customer.jpg
Leveling Sensor Control BoxLoading For ShipmentShipment To The Customer

Winplus is well-known as one of the leading EPS expander manufacturers and suppliers in China. We will offer you the best price and service.used automatic

Welcome to contact us, we will never make you unsatisfied

Add: No.216, Fenghuangshan Rd, Fushan Dist , YANTAI CITY, SHANDONG, CHINA

Phone: +8615006550282

Fax: +86-535-6328630

E-mail: ytwj_huangwei@163.com

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