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preform injection system

 Product Name:48 Cav Pet Preform Moulding, Injection Molding Systems
 Model No.:DMK-PET48A, DMK-PET48B
 Place of Origin:Huangyan China
 Delivery Date:3 Months
 Packing:Wooden Packing
 Transportation:By Sea
 Function:For Making Pet Preforms
 Payment Type:T/T or L/C
 Certificates:CE, ISO9001
 Export Markets:Worldwide

Demark 48 cavities pet preform injection molding system@(injection molding system@injection moulding machine@injection moulding system@) uses a new part cooling and handling system, which features:
    1.  Cooling on the inner surface of the preform without using compressed air, unlike most post-mold cooling systems which only cool the outer surface
    2.  Optimized cycle utilization — being mounted on the moving platen, the cooling system remains active for up to 85% of the overall cycle.

Demark pet preform injection molding machines are available from 280 to 500 tonnes (2800 to 5000 kN) and up to 72 cavities.

Demark pet injection systems offer:
    1.  Faster cycles
    2.  Reduced energy consumption
    3.  Smaller footprint 
    4.  Improved repeatability 
    5.  Rapid set-up


    1.  Two state plasticizing enables plenty injection quantity;
    2.  Take out plate with three working position insures sufficient cooling time and shorter cycle time;
    3.  High quality parts and accessories from world famous brands enable higher speed and precision;
    4.  Special screw design increases torque while brings down shear force to avoid degradation;
    5.  Accumulator from world reputable manufacture increases performance while brings down power consumption;

Reflex Platens
Reflex platens distribute clamp force evenly across the platen face.
Reflex platens:
    1.  Allow for 10-30% lower clamp tonnage 
    2.  Decrease mold wear 
    3.  Improve part quality
Injection Units
demark systems offer both reciprocating screw (RS) and two-stage injection units. RS units offer the performance required for many PET applications while two-stage is appropriate for higher throughput applications.
Polaris Controls
PC-based controls manage all functions of our PET production systems, with optional packages to integrate auxiliaries and downstream part handling equipment. Advantages include:
    1.  Faster cycle times 
    2.  Improved shot-to-shot repeatability 
    3.  Remote connectivity through ServiceNetLink 
    4.  Control of molding system and auxiliaries from a single interface
Linear Bearings
Linear bearings support the moving platen directly on the machine base. This design reduces mold wear by improving platen alignment and perpendicularity, and provides a grease free molding environment.

Technical Parameter

INJECTION UNIT Screw L/D Ratio L/D 25 25
Injection Pressure Kgf/C 875 875
Machine Size(LxWxH) mm 9100×3790×2240 9100×3790×2240
Theory Shot Volume(Max) 1815 2905
Shot Weight(PS) g 2178 3486
ozs 77 123
CLAMPING UNIT Clamping Force T 360 360
Clamping Stroke mm 645 645
Max/Min Thickness of Mould mm 300~720 300~720
Space Between Tie Bars (WxH) mm 660×860 660×860
Ejector  Stroke mm 180 180
Ejector  Force T 12 12
NO.of Ejector Pins pcs 5 5
Max Pressure of System Kg/C 140 140
INJECTION MOULD Cavity (Max) PCS 48 48
Neck of Bottle (Max) mm 42 42
Length of Preform(Max) mm 190 190
Weight of Preform(Max) g 35 45
Form of Mould  Pneumatic pin-valve gate hot-runner
POWER UNIT Pump Motor Power KW 82 82
Robot Power KW 12 12
No.of Heater Zones(0~400) set 49+10 49+10
Heater Input Capacity .KW 53 58
Mould Heater Capacity KW 51 51
Auto Manipulator Manipulator Cav 144 144
Cooling Form Cav 144 144
OTHER REQUEST Electric Power supply
(3-phase AC)
V 380 380
KW 155 155
Chilling Water 5~15 5~15
Mpa 0.45 0.45
L/min 600 600
Cooling Water 30~55 30~55
Mpa 0.25 0.25
L/min 200 200
Compressed Air Mpa 0.7~0.9 0.7~0.9
L/min 800 800
Compressed Air (Max) Pcs/h 17000 17000

Keywords: pet preform injection molding system, injection molding system, preform injection system

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