Our pu casting injeciton machine is that our company follows the
international advanced technological products, imports the main
machine parts from foreign countries and famous brands. Hence,
technical and safety performance of the equipment has reached the
advanced level of the same product of the same period abroad.
This machine is used for producing casting polyurethane elastomer
product which use MOCA and other material as chain extender, such
as gluing roller, pad, rollers for elevator use and highly rigid
products and can compose pre-polymer and vacuum defoaming in this
Different PU rubbers can be switched instantaneously to produce CPU
of different materials.
2.3 . Viscocity(cps):
A(POLYOL or pre-polymer):~4000mpa.s(45℃-100℃)
B(MOCA):10~1000 mpa.s (130℃)
2.4 Pouring output: 2-10 kg/min (100:14) , total 5scales for
Mixing ratio range adjustable: 100:6~100:20There are some weight
differences when the density of the raw material and the mixing
ratio of the raw material are different.
Option:Another component can be added for pigment or agent usage.
3.1 Tanks(A,B, Tank)
Material of Tank: Stainless steel AISI 304
With heating jacket
Max capacity: A220L B60L
Useful capacity: A160L, B45L
Heating system:Oil recirculation
Temperature check: PT100 sensor.
Max Temp: 130℃
Tolerance on the temperature holding: Within +/- 1.5°C
Mixer: Stainless steel material ,anchor type
Mixing speed: Adjusted according to different raw material
Inspection window: Glass window in the tank body
Option: Electrical inductor
Nitrogen filling system
Raw material filling system
Raw material vacuum absorb system
Raw material unloading system
Material: PTFE reinforced stainless steel with mesh
Heating system: OIL heating
Max working pressure: 20 bar
Max Temp: 130℃
Tolerance on the temperature holding: Within +/- 1°
These high flexibility insulation pipe can ensure the consistency
of temperature in the whole pipeline.
3.3Metering system(A,B, components)
Metering pump: Gear pump from German
Delivery capacity of Metering pump: A 40cc/r, B 6cc/r
Filters: Highly filtering surface Stainless steel 304.
Motor:Converter in accordance with tachometer and motor to control
the flow speed.
ALL the metering system and fliters keep under the tank and within
The measurement system and filter in ovens, insulation material
below. This design method can be pressurized tank in the wrong
circumstances, to maintain sustained and steady output of raw
materials; and keeping the consistency of the temperature. Computer
will be set to control output of the wheel pump. This control
system can ensure that the output of raw materials in the setting
value of + / - 0.3% .
3.4 Mixing head
Material: High strength alloy
Speed: 0.0 to 6500 rpm.
Heating: Independent electrical heating Mixing by mixed-head match
with the motor
Temperature check: Thermal sensor.
Tolerance on the temperature maintenance: +/- 1°C
Motor: Electric motors, controlled by a frequency convertor.
Our uniquely mixing head design has the following features: It can
guarantee the accuracy of speed, and at a very low speed of the
mixed quality of raw materials; so that the prepolymer does not
cause pressure damage to properties.
Made of special alloy mechanical seal system made the mixing head
also could work in the high anti-pressure, while ensuring the
reliability of mixed system.
Unique design of the mixing chamber can be cleaned to ensure
easy-to-use and thoroughness.
3.4.1 Injectors for A,B,
Material: high strength alloy
Injection system: injection pressure independent of each other
The heating system: independent electrical heating
Temperature measurement system: PT100 thermal sensor
Temperature error: control +/- 1°C
Each injection pressure control is independent of each other, can
be adjust alone pressure casting and recycling pressure. The loop
injection pressure will be tested by the head of sensor, and with
pressure adjusting device. This control method can avoid every time
before pouring out some materials must be mixed and the uneven.
4.Option: Auxiliary Metering and injection system: for color,
foaming agent and additive agent and so on
Pump: Gear Pump
Metering accuracy: 0.3%.
Flow range: 0.006-0.06L/min
Metering accuracy : 0.3%.
Pressure check: Pressure transducer.
Tank capacity: 0.6L/2L
Motor: Electric managed by an inverter.
Injectors: Single for each auxiliary with independently adjustable
4. Cleaning system
Tank:20L Stainless steel
Control of Liquid :Visual glass window
Low position warning electronic equipment (OPTION)
Injector: Inject raw material to mixing head directly
The running speed and circulation of cleaning solution,air,mixing
head are are independent control system,this can make them aximum
In order to the maximize reduce consumption of cleaning, settings
of each component can be pre-cleaning procedures. The casting
machine Settings when suddenly loses power in the artificial
emergency cleaning device. Cleaning solution should use
non-flammable solvents, such as:DBEMC
leaning procedures. The casting machine Settings when suddenly
loses power in the artificial emergency cleaning device. Cleaning
solution should use non-flammable solvents, such as:DBEMC.
5． Electric Board and software
Electronic display design according to the EC criteria.
Software: The software system can control the machine to work and
in the standby machine control.
Data in the user interface through the following procedures:
* Working state real
After all the machine on real-time parameters can be displayed on
the interface, such as temperature, pressure, pumping and mixing
speed, security levels, alarm conditions and other procedures set
by the parameters must be displayed.
* Formula design program
The major setting and save the formula interface ( depth,
temperature, pressure, etc). For each formula can be set and save
20 subroutine, these subroutines can cast the first one near the
selector out directly.
* Calibration interface
This interface is mainly used to automatically correct out of three
different charge, by a balancer to determine quality.
The software also include some other systems, such as casting
machine maintenance control, work time, data statistics and alarm
records. Computer software must pass a set of passwords or keys in
order to start, this can guarantee the authorized person is
different for different levels of machine control.
Length of injection handle: 1,300mm
Vacuum pump: 40m3/h
Compressed air: Dry air 5/7 bars
Flow capacity: > 5 Nm3/hour
Power: 220V/380V – 50 Hz (3P+N+T)
Installation environment: No install in the workshop of any