Double Piston Backflush Screen Changer

Melt filter double plate type continuousmelt filter

Compare with the GM-SSP series single plate type hydraulic screen changer, this GM-DSP series double plate type continuous screen changer for plastic extruder has a obvious advantage : continuous operation.
The structure: 1,two pieces of slide plate instead of one slide plate
2,one screen cavity on each slide plate insteads two screen cavities on one slide plate.
And this kind GM-DSP series double plate screen changer owns the feature of single plate hydraulic screen changer: a quick screen change process.
This GM-DSP series Double plate type continuous screen changer for plastic extruder is consist of
The main body of the screen changer
Hydraulic unit with accumulator
Electrical controlling pack (This part is optional choice by customers)
Characteristics of GM-DSP series continuous screen changer for plastic extruder Double plate type continuous screen changer for plastic extruder
Two round removable breaker plates on each slide plate
"Continuous type" means operation of screen change without machine halt or disruption of melt flow.
Equiped with air venting system
Fit for almost all kinds of polymers
It works well under the high pressure 400bar(40Mpa) not impact the high performance.
The filtration screen area covers from 100cmo 980cm², depending on the size, fit for output range from 100kg/h to 3700kg/h.

TECHNOLOGY RESEARCH & DEVELOPMENT
batte Mould have been paid attention to long-term technological layout, at all times fetching in, research and development, betaking newest technology and technique, emphasizing on technology innovation and products researching.
batte Mould have passed the certificate of ISO9001:2008 International Quality System, controlling products quality, consummating, guaranteed by strict inspection.

PRODUCTION DESCRIPTION
1. Hydraulic screen changer used built-in various sealing device, sealed performance is good, meet any polymer high extrusion quantity with different production, can cooperate to use standard extruder.
2.High wear resistance, high pressure, high precision filter design. The hydraulic screen changer improves effective filter area and filtering effect.
3. Fast screen changer times is equal or lesser than 2 seconds, filtration area optional from Ï?30mm-Ï?250mm.
4. Pressure 25-30Mpa, temperature under the condition of 300 degrees, doesn't affect the use of performance.
5. Apply to: PC, PMMA, PET, PS, PU, PP, PE, EVA, ABS, PVC and other polymer.

Item Detailed Introduction
Mould material 2Cr13,42CrMo,38CrMoALA or as customer's requirement.
Mould feature Reasonable structure design, good surface treatment, long mould life, shorter deliver time, the best price.
Process equipment CNC, EDM, Drill, Wire Cutting, etc
Software AutoCAD, UG, Pro/E, Cimatron...
Provides Service Provides detailed product introduction and overall quotation service.
Design Team We have a professional design team. Provides design plans as clients' request.
Professional Factory We are manufacturer, specializing in manufacturing plastic injection mould.
Certification ISO9001:2008

Automatic control continuous screen changer plastic granulating extruder

Benefits of this GM-DP-R series continuous screen changer for extruder
Increased production
Reduced downtime & scrap
Leak-free operation
Increased filtration area
Reduced inlet pressures
Accurate, repeatable screen changes
Reduced maintenance

Technical data
1)The main body of the screen changer
Raw material:alloy steel(38CrMoAlA)
Surface treatment:Nitriding treatment
Depth of Nitrated Layer: 0.40-0.70mm
Nitrided hardness:950-1050Hv
Fragility of nitration: Less than grade 1

Flow channel treatment: chrome plated
Depth of chromium-plating:0.05-0.1mm
Hardness of surface after chromium-plating:HV950HV

2)Drive system:Hydraulic unit:

3)Control system
Electrical controlling system: warnning device,pressure and temperature transducer, are included

Large filter area continuous screen changer for plastic extrusion machine

This zb-DP-L series Double piston large filter area continuous screen changer for plastic extrusion machine is consist of

The main body of the screen changer
Hydraulic unit
Electrical controlling pack(this part is optional choice by customers, the above picture shows two kind of controll system)
This zb-DP-L series Large filter area continuous screen changer for plastic extrusion machine is designed based on zb-DP-R series dual rods continuous screen changer , this kind of continuous screen changer enlarge the filtration area by instead the round breaker plates as the rods full of holes, and the filter screen is wrapped on the rods full of holes. And this kind of continuous screen changer now is widely used for the hot melt adhesive, high output plastic recycling machine.
So the filtration area of the GM-DP-L series screen changer is much more larger than the zb-DP-R series continuous screen changer, it meets the high yield device requirements.