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Demark Holding Group Co., Ltd.

Pet, Preform, Injection manufacturer / supplier in China, offering Demark High Speed Pet Preform Injection System 72 Cavities Cooling Robot - Preform up to 30g (72Cavities Neck Up to 38mm), Demark Automatic 1.5L Pet Plastic Blowing Machine with 4 Cavity, Fully-Automatic 6 Cavity 5-20L Pet Bottle Blowing Machines and so on.

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Supplier Homepage Product Pet Preform Injection Molding Machine Demark High Speed Pet Preform Injection System 72 Cavities Cooling Robot - Preform up to 30g (72Cavities Neck Up to 38mm)

Demark High Speed Pet Preform Injection System 72 Cavities Cooling Robot - Preform up to 30g (72Cavities Neck Up to 38mm)

FOB Price: US $8,000,000 / Set
Min. Order: 1 Set
Min. Order FOB Price
1 Set US $8,000,000/ Set
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Payment Terms: L/C, T/T

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Basic Info
  • Model NO.: DMK DP 400/3500
  • Structure: Horizontal
  • Plasticizing Way: Screw Type
  • Automation: Automatic
  • Certification: CE, ISO9001:2008
  • Demark: Demark
  • Origin: China
  • Type: Preform Injection
  • Plastic Type: Thermoplastic
  • Clamping Way: Hydraulic
  • Computerized: Computerized
  • Plastic Mould: Plastic Mould
  • Trademark: DEMARK
Product Description

DP400 High Speed Preform Injection System Technical Specification

 
A.   Brief Introduction for DP400 - Innovation and Improvement
 
Brand new servo hydraulic system design
l   The whole hydraulic system is driven by servo motor.
l   Reduce cycle time with synchronized design: melting PET at the same time while other movements are proceeding.
l   4 sets of nitrogen tank with high pressure filter.
l   Injection, mold movement and ejecting are all controlled by Rexroth servo cylinder.
l   Equipped with separated filtering and cooling system for oil whose accuracy could reach 20um.
l   The advantage of servo control:
a.     Low power consumption: When the machine is cooling or without any movement, the servo speed is less than 10 RPM which the energy consumption is almost 0. While normal electrical motor speed around 1500RPM. The output point of servo hydraulic oil directly connected with the directional valve who control the movement to save energy. While normal machine has to though flow control valve.
b.     Precision: Pressure sensor make the accuracy of servo hydraulic system reach 0.1bar.
c.     Fast react: It only takes 0.12s for the pressure and speed to reach maximum output.

 
Control system
The project is leading by Mr. He -former HUSKY engineer who was in charging of the developing injection machine control system. Applied with his new generation PC based BECKOFF injection system control solution, Demark machine could has following advantage:
l   Stable and fast cycle time.
l   Fast PCL execution time.
l   High performance PC and fast I/O capability.
l   Quick communication thought all control components.
l   Self-adjustment and self-adaption.
l   High level control algorithm for speed, pressure and temperature. High level control strategy for reducing energy consumption.
l   Friendly user interface design.
l   Intuitive icon design for fast learning and control.
l   Fast information reading by press less buttons.
l   Single function button design.
l   Clear and accuracy alarm function.
l   Detailed event log.
l   15 Inch touch screen, 2.1G dual core CPU, 3GB memory and 80GB hard drive equipped.
l   No touched electronic ruler with longer life time, and EtherCAT digital single with stronger anti-interference capability.

 
Temperature control system
l   Equipped heater from Italy and protector outside the heater.
l   The accuracy of temperature could reach ±1 degree with PID control.
l   The constant power module makes the mold temperature stable and non-influenced by the voltage.

 
Cooling Robot
l   Sliding and flipping unite are designed as a whole which could have more stability.
l   Easy adjustment for the distance between robot plate and mold.
l   Three station cooling plate.
l   LENZE servo motor and Alpha reducer make the movement accuracy and quiet.
l   Siemens vacuum pump.

 
Plasticization & Injection
l   Barrier design screw improved the plasticization effect.
l   Screw with chrome and the L:D ratio reach 25:1.
l   By equipping material storage unite, the machine could melting and injection at the same time.
l   Using servo motor from Germany for melting.
l   Back pressure could adjust on the control panel.

 
Clamping Unit
l   Special clamping parameter design for PET make the mold open & close stable and fast.
l   Strong mold plate make the mold get pressure balanced.
l   Square design which matching the mold.
l   Also compatible with HUSKY mold.
 
Ejection Unit
l   With more ejecting pin make better ejection.
l   Bigger ejecting force than normal machine.
l   Ejecting stop work with the light sensor which protect the mold.

 
Innovation on water and gas circuit
l   Centralized cooling water supply for mold, robot and auxiliary machine.
l   Stainless quick plug for cooling water.
l   Needle control in the mold use the MAC big volume valve which improve the speed and stability.
l   Using SMC valve for high pressure air and vacuum transmitting.

 
High reliability of the whole machine
l   The clamping unit is welded by H type steel.
l   Injection unit using 10mm steel while robot frame using 120mm square tube.
l   Equipped several parts of PC board which let the operator see machine inside clearer.
l   Beautiful out looking and color design.

 
B.   Technical Parameter for DP400
ITEMDP400
INJECTION
UNIT
Screw L/D RatioL/D25
Screw Diametermm120
Injection Pressurekgf/cm21000
Theory Shot Volume(Max)cm34100
Shot Weight(PS)g5000
oz175
CLAMPING
UNIT
Clamping ForceT300
Clamping Strokemm585
Max/Min Thickness of Mouldmm300~720
Space Between Tie Bars (WxH)mm660x760
Ejector Strokemm180
Ejector ForceT20
NO.of Ejector Pinspcs5
Max Pressure of Systemkg/cm2180
MOULDCavity(Max)PCS72
Neck of Bottle(Max)mm42
Length of Preform(Max)mm190
Weight of Preform(Max)g35
Type of MouldNeedle Valve of No-Cutting PET Preform Mold
POWER
UNIT
Motor PowerKW75+110
Robot PowerKW15
Melting Heater CapacityKW100
Mold Heater CapacityKW55
ROBOTManipulatorcavity216
Cooling Formcavity216
Size (LxWxH)cm263X157X230
OTHERElectric Power Supply
(3-phase AC)
V380
KW335
Chilling WaterºC5~12
Mpa0.8
L/min900
Cooling WaterºC<25
Mpa0.3
L/min300
Compressed AirMpa0.7~0.9
L/min800
SIZEMachine Size (LxWxH)cm990X180X250
WEIGHTMachine WeightT28
 
C.   DP400 Brand Specification
NameBrandCountry
Mechanical and hydraulic system
Oil pumpVOITH()GERMANY()
Charging servo motorPHASE()CHINA()
Servo melting motorKNODLERGERMANY()
AccumulatorHYDAC()GERMANY()
Servo valveREXROTH()GERMANY()
Directional valveREXROTH()GERMANY()
Oil sealingNOKJAPANESE()
SEALTECH() EUROPE()
FilterHYDAC()GERMANY()
Pressure gageHP()CHINA()
Pressure sensorHYDAC()GERMANY()
Oil coolerKAMUI()CHINA()
Pipe connectorEATON()USA()
/Screw & barrelHUAYE()CHINA()
Tie barJENERAL()TAIWAN()
HeaterZ.R.EITALY()
Linear guilderTHKJAPANESE()
BearingNSKJAPANESE()
(Pneumatic system)
(Air valve)MACUSA()
SMCJAPANESE()
FESTOGERMANY()
(Low pressure regulator)SMCJAPANESE()
(Air cylinder)AIRTACTAIWAN()
(Vacuum)SIEMENSGERMANY()
(HOT RUNNER SYSTEM)
(Heater coil)HOTSET GERMANY()
(Temperature controller)SIEMENSGERMANY()
(Manifold heater)ZOPPASITALY()
(Valve stem)PUNCHJAPANESE()
(ELECTEIC CIRCUIT
Computer control systemBECKHOFF()GERMANY()
(Robot Servo motor)LENZE()GERMANY()
(Magnetic relay)ABBSwiss()
(Photo electric sensor)OPTEXJAPANESE()
Main switchABBSwiss()
(Proximate switch)TEFRANCE()
SICKGERMANY()
 
D.   Auxiliary machine
 
Dehumidifying dryer
With two space of drying and dehumidifying, the machine is suitable for drying the raw material with the following specification:
l   Power 400V 50HZ 3P+PE.
l   24VDC and 230VAC subsidiary loop. Machine design meet CE standard.
l   System electronic board control with LCD screen man-machine interface.
l   High precision PID heating control.
l   Two drying hopper with stainless steel heat desiccant beds.
l   High pressure fan for desiccant beds.
l   HT version exchange switch for two desiccant beds.
l   Air return and regeneration heat exchanger.
l   Solid state relays for process heater control.
l   Regeneration heater.
l   Self-protection unit for the heater avoid overheating.
l   Dew point less than -40°C.
l   Dry air temperature 60-190C.
l   Pressure difference sensor for the return air filter to avoid blocking.
l   Acoustic and Visual Alarm.
l   Stainless pipes.
 
 
Stainless drying hopper
l   Add-on heater.
l   ANSI 304 stainless steel construction.
l   100mm insulation layer.
l   High temperature resistance air output filter.
l   Observation door with 100mm insulation layer.
l   Directly install material collector on the top.
l   Manually control pneumatic material dropping valve.
l   Continuous material level gage.
 
Vacuum pump
l   Motor (400V/3P/50HZ)
l   CF2 type filter with 6.75M2 cleaning area and 8um filter precision
l   Automatic filter cleaning
l   Filter clogging pressure switch
l   Maximum noise level <75dB(A)
 
Vacuum auto loader
l   ANSI 304 stainless steel construction
l   Stainless steel internal grid filter and steel sealing
l   50mm dia vacuum breaker valve
l   HT version magnetic level sensor
l   Ø50 mm material connections
l   Closed type testing port
 
Pipes
l   50mm stainless loading pipe
l   50mm PU pipe
 
Demark High Speed Pet Preform Injection System 72 Cavities Cooling Robot - Preform up to 30g (72Cavities Neck Up to 38mm)
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