EPS Beads Making Machine Factory
Guide on pre expander machine
A pre-expander is a machine used in the production of polystyrene (PS) and other plastics where the material is first expanded to create a lightweight, foamed product. The process begins with small beads of resin which are placed in the pre-expander chamber. The chamber is then heated and pressurized with nitrogen gas. This causes the beads to expand and become very light and fluffy.
After expanding, the foam is cooled and then sent to a molding machine where it can be formed into various shapes. Pre-expanders are available in a variety of sizes and capacities to meet the needs of different manufacturers.
A pre-expander machine is an essential piece of equipment in the EPS production line. It is used to expand raw EPS beads into larger beads with a lower density. The pre-expander machine heats up the raw EPS beads and uses high-pressure steam to expand them.
There are several factors to consider when choosing a pre-expander machine, such as capacity, expandability, and features. This guide will help you choose the right pre-expander machine for your needs.
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Main advantage:
1. Fully automatic and continuous production.
2. Controlled by touch screen and PLC, easy to operate.
3. High output and save energy.
4. Exact density of foam beads.
5. Stable quality and less failure.
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EPS pre-expander machine expanding EPS beads:
■ Including common dryer bed, screw conveyer, filling, sieving devices, etc
■ Steam system: Steam pressure reducer and angle valve to control steam;
■ Filling system: Adopts electronic weighing system, setting filling weight on touch screen for the material filling automatically;
■ Material level control: Adopts photo sensor to control the expansion level;
■ Electric control: Adopts PLC programmable controller and touch screen, keep all process work automatically
EPS Batch Pre-Expander With Fluidized Bed Dryer
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1. Inside and outside of barrel are both made of stainless steel, and the middle layer is heat preserving material, the production efficiency is 2~3 times higher than the average machine, it can reduce 25% energy consumption.
2. The baiting system includes first time baiting device and second time baiting device.
3. This machine can process secondary pre-expansion.
4. The expanded density range of foamed beads is 7~30 KG/M³,the density tolerance is minimal.
5. Steam pressure reducing valve is optional.
EPS Continuous Pre-expander Machine Factory
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Port: Hangzhou, China
Production capacity: 20 sets / month
Payment method: Letter of credit, telegraphic transfer
Model:Automation
Computerized: Computerized
Certification: CE, ISO9001:2008
Condition: New
Polystyrene expander machine for lost foam casting
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Port: Hangzhou, China
Production capacity: 20 sets / month
Payment method: Letter of credit, telegraphic transfer
Model:Automation
Computerized: Computerized
Certification: CE, ISO9001:2008
Condition: New
Factory Direct Price Auto Lost Foam Pre-expander for High Density EPS Foam Beads
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Port: Hangzhou, China
Production capacity: 20 sets / month
Payment method: Letter of credit, telegraphic transfer
Model:Automation
Computerized: Computerized
Certification: CE, ISO9001:2008
Condition: New
Auto batch polystyrene pre-expander machine
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Description
■ It has first and second expansion.
■ The pre-expander machine has screw conveyor and automatic weighing system;
■ It is controlled by PLC system and it has touch screen which can realize a full automatic cycle operation of material feeding, steam feeding, temperature controlling, foaming and discharging.
■ The foaming process in the machine is realized in a fully closed stainless steel barrel under constant pressure with high thermal efficiency, economized steam, shortened curing process and high foaming magnification.EPS pre-expander with second expansion
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What is pre expander machine
Pre-expander machines are used in the rubber industry to expand uncured rubber before it is vulcanized. The machines work by heating the rubber and then forcing it through an expandable die. This process increases the volume of the rubber and makes it easier to vulcanize. Pre-expander machines can be used for a variety of applications, including tires, hoses, and gaskets.
Pre-expander machines are used to expand polystyrene beads (EPS) into a pre-shaped foam mold. The machine heats the beads until they expand and take on the shape of the mold. The expanded foam is then cooled and removed from the mold.
Pre-expander machines are an essential part of the EPS production process. They allow for greater control over the final product and can produce a more consistent product than hand-expanding methods.
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The main function of pre expander machine
Pre-expander machine is the first step of EPS production line. It is used to expand and dehydrate EPS beads, and its main function is to make the beads absorb a lot of steam and expand to several times their original size.
The main function of the pre-expander machine is to expand the raw material (EPS) in order to increase its volume and to reduce its density. The expanded beads are then sent to the molding machine where they will be molded into the desired shape.
Pre-expanders are used to increase the bulk density of EPS beads prior to the moulding process. By pre-expanding the beads, they take up less space in the mould, resulting in a lighter and more consistent product.
Pre-expanders are also used to improve the flow of EPS beads during the moulding process. By pre-expanding the beads, they become more uniform in size and shape, which makes them easier to flow through the mould.
Pre-expanders are available in a range of sizes and capacities, from small benchtop units to large industrial machines. The size and capacity of the machine will depend on the amount of EPS beads that need to be processed.
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Advantages and features of pre expander machine
Pre expander machines are used to expand polystyrene beads into expanded polystyrene (EPS) beads. The pre-expander machine is a key piece of equipment in the EPS production process, and it offers many advantages and features that make it an essential tool for EPS manufacturers.
Some of the advantages of pre-expander machines include:
- Increased production capacity: Pre-expander machines can expand up to four times the amount of EPS beads that can be expanded using manual methods. This increased production capacity can lead to increased profits for EPS manufacturers.
- Greater control over bead expansion: Pre-expander machines offer greater control over the expansion process, which results in more consistent bead size and shape. This improved consistency can lead to improved product quality and reduced manufacturing costs.
- Reduced energy consumption: Pre-expander machines use less energy than other methods of expanding EPS beads, which can lead to reduced production costs.
how to maintain pre expander machine
It is important to maintain your pre expander machine in order to keep it functioning properly. There are a few things that you can do in order to maintain your machine.
-Make sure that you clean the machine regularly.
-Inspect the machine regularly for any wear and tear.
-Change the oil regularly.
-Keep an eye on the pressure gauge and make sure that it is functioning properly.
-Make sure that you have a spare parts kit on hand in case something breaks.
It is essential to keep your pre expander machine in good condition to ensure optimal performance. Here are some tips on how to maintain your machine:
-Regularly check the oil level and change the oil if necessary.
-Check the air filter and clean or replace it if needed.
-Clean the cooling fins on the compressor regularly.
- Inspect the hoses and connections for any leaks or damage.
-Keep an eye on the gauge readings and watch for any sudden changes.
Common problems and solutions of pre expander machine
1. Low output pressure: The most common reason for this is a blockage in the system, typically caused by too much calcium in the water. Another possibility is that the air filter is dirty and needs to be replaced.
2. High energy consumption: This could be caused by a number of factors, including a leak in the system or an inefficient heat exchanger. It’s also possible that the machine is not properly maintained and needs to be serviced.
3. Frequent breakdowns: This is often caused by overloading the machine or using it for materials that it’s not designed for. It’s important to make sure that you’re using the right machine for your application and that you’re not pushing it beyond its limits.
4. Poor quality product: This can be caused by a number of factors, including incorrect settings, poor quality raw materials, or operator error. It’s important to make sure that you’re using the machine correctly and that you have good quality raw materials before beginning production.
Pre-expander machine is an important part of the EPS production line. It is used to expand raw material beads into larger beads with a specific density. The pre-expander machine can be used for different purposes such as making insulation boards, packaging materials, etc. The machine is also known as an EPS pre-expander, EPS bead expander, or EPS densifier.
The main function of a pre-expander machine is to expand raw material beads into larger beads. The expanded beads have a lower density and are more uniform in size. The expanded beads are then sent to a molding machine where they are molded into the desired shape.
