Origin

China

Demark 48 cavities pet preform injection molding 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 moulding systems 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:

Features:

TYPE			DMK-PET48A	DMK-PET48B
INJECTION UNIT	Screw L/D Ratio	L/D	25	25
					Injection Pressure	Kgf/C??/span>	875	875
	Machine Size(LxWxH)	mm	9100×3790×2240	9100×3790×2240
					Theory Shot Volume(Max)	??/span>	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??/span>	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??/span>)		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	degree		5~15	5~15
	Mpa	0.45	0.45
	L/min	600	600
Cooling Water	degree	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