Dual column ?continuous automatic filter??? Description of Dual column ?continuous automatic filter? Double-piston continuous screen changer is designed to consist of two pistons with each containing?a filter screen,the two screens work at the same time,when a screen change is required,one of the pistons?is Moved out while the other remains in the operating position,and the melt flows continuously through?the other piston,the pressure fluctuation is small,thereby meeting the requirement of high quality production. Performance characteristics of Dual column ?continuous automatic filter? 1.?There is no need to stop the machine when changing the screen;?no material Leakage or production interrupt;?Dual channels for filtration; Material leading and air exhausting design. 2. No need to stop the working machine when changing the screen, easy to operate and maintain, reliable for higher production output and lower energy consumption, 80%-90% down of waste material caused by screen changing. 3. Simple construction, reliable operation; Easy maintenance, lower running cost; Automatic screen changing by hydraulic; Machine non-stopped with screen changing. Application fields of Dual column ?continuous automatic filter? Applicable to the production of various thermoplastic, chemical fiber, rubber, collosols, adhesive, coating and finishing materials alike, mainly used for filtration of the material mixture. Parameter:

? Type	Dimensions L/W/H(mm)	Screen-Dm (mm)	Capacity (kg/h)	Heating?Power (kw)	Pressure (Mpa) ?
DHZ-2-100	900*190*310	?70	50-150	4	≤35
DHZ-2-120	1250*235*375	?90	110-350	6	≤35
DHZ-2-140	1400*250*420	?110	200-500	7.4	≤35
DHZ-2-160	1550*275*455	?130	300-700	10	≤35
DHZ-2-200	1670*300*480	?155	400-1000	12	≤25
DHZ-2-600	1780*310*520	Oval	1000-3000	13	≤25
DHZ-2-1800	1460*310*520	Square	1500-4000	13	≤25

Certificate: Customers ? To choose the most suitable screen changer for the extruder, please kindly offer us the following information:
1.?screw?diameter;?????? ?2.?Is?the?extruder?single?screw?or?twin?screw?
3.?raw?material;????
4.?final?product (granulating, monofilament or others);? 5.?Output; 6.?maximum?pressure; 7.?screen?change?interval;
8.?the?screen?diameter?of?your?current?screen?changer;
9.?have?a?melt?pump?or?not.