48 Cavities High Speed Plastic Pet Preform Injection Molding Machine

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Model NO.: DP300/3500
Computerized: Computerized
Certification: CE, ISO9001:2008
Trademark: demark machine
Transport Package: Standard
Specification: 23000pcs/hr, 7.5s
Origin: China, Zhejiang
HS Code: 84771010
DMK high speed injection molding machine is special designed for PET preform making.
 
48 Cavities High Speed Plastic Pet Preform Injection Molding Machine

Demark high speed injection molding machine widely used for producing  PET preform for carbonated bottle, mineral water, pesticide bottle oil bottle cosmetics, wide-mouth bottle and hot fill bottle etc. DP series high speed injection molding machine adopts more advanced controlling system and configuration to be high-efficiency, more stable and more power saving.

48 Cavities High Speed Plastic Pet Preform Injection Molding Machine
 

Demark 48,72,96 cavities pet preform line@(injection molding system@injection molding machine@pet preform 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 systems are available from 300 to 400 tonnes (3000 to 4000 kN, 3500g-5000g) and up to 96 cavities.

Demark pet injection systems offer:
    1.  Faster cycles(6.8s)
    2.  Reduced energy consumption
    3.  Smaller footprint 
    4.  Improved repeatability 
    5.  Rapid set-up

Features:
    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.
 
48 Cavities High Speed Plastic Pet Preform Injection Molding Machine

Controls
DMK-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 
 
48 Cavities High Speed Plastic Pet Preform Injection Molding Machine

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.

Technicial Parameter

ITEM DP300/3500
INJECTION
UNIT		 Screw L/D Ratio L/D 25
Screw Diameter mm 100
Injection Pressure kgf/cm2 1000
Theory Shot Volume(Max) cm3 4100
Shot Weight(PS) g 2900
oz 124
CLAMPING
UNIT		 Clamping Force T 300
Clamping Stroke mm 585
Max/Min Thickness of Mould mm 300~720
Space Between Tie Bars (WxH) mm 660x760
Ejector Stroke mm 180
Ejector Force T 20
NO.of Ejector Pins pcs 9
Max Pressure of System kg/cm2 180
MOULD Cavity(Max) PCS 72
Neck of Bottle(Max) mm 42
Length of Preform(Max) mm 190
Weight of Preform(Max) g 35
Type of Mould Needle Valve of No-Cutting PET Preform Mold
POWER
UNIT		 Motor Power KW 75+80
Robot Power KW 35.5
Melting Heater Capacity KW 78
Mold Heater Capacity KW 55
ROBOT Manipulator cavity 144
Cooling Form cavity 144
Size (LxWxH) cm 263X157X230
OTHER Electric Power Supply
(3-phase AC)		 V 380
KW 328.5
Chilling Water ºC 5~10
Mpa 0.8
L/min 900
Cooling Water ºC <25
Mpa 0.3
L/min 300
Compressed Air Mpa 0.7~0.9
L/min 800
SIZE Machine Size (LxWxH) cm 930X180X250
WEIGHT Machine Weight T 26

 

48 Cavities High Speed Plastic Pet Preform Injection Molding Machine

Tower Crane Gear

Tower Crane gear mainly including 19/38/99 teeth gear, bevel gear, Tower Crane Sun Gear, and so on, which are the critical parts of the tower crane reducer. 19 teeth gear and 38 teeth gear are connected with two motor shaft repectively, which are connected with 99 teeth gear. The speed is reduced by the transmission of gears.


A bevel gear is a type of gear that has teeth cut on a conical surface. It is commonly used in tower cranes to transmit power between the vertical and horizontal shafts.
In a tower crane, the bevel gear is typically used to change the direction of rotation. The vertical shaft, which is connected to the motor, rotates vertically, while the horizontal shaft, which is connected to the crane's boom, rotates horizontally.
The bevel gear consists of two gears with intersecting axes. The teeth on the gears are cut at an angle, allowing them to mesh smoothly and transmit power. The gear ratio of the bevel gear determines the speed and torque of the rotation.
The bevel gear in a tower crane is designed to withstand heavy loads and provide efficient power transmission. It is usually made of high-strength steel to ensure durability and reliability in demanding crane operations.
Overall, the bevel gear plays a crucial role in the functioning of a tower crane by enabling the transfer of power and changing the direction of rotation between the vertical and horizontal shafts.

Bevel Gear,Tower Crane Sun Gear,Crane Pinion Gear,Tower Crane Transmission Gear,Tower Crane Drive Shaft

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