EPS Pre Expander Machine User Guide


This guide is designed to familiarize you with the proper procedures for operating the EPS pre-expander machine. Please read this manual carefully before attempting to operate the machine.


Safety Precautions


1. Always wear gloves and safety goggles when handling chemicals.

2. Be sure to ventilate the area well when using chemicals.

3. Do not smoke near chemicals or open flames.


In this EPS Pre Expander Machine User Guide, we'll go over the basics of how to operate your machine. We'll cover topics like how to load material, how to adjust settings, and how to troubleshoot common problems.


1. Loading Material


To load material into your EPS Pre Expander Machine, first make sure that the power is off and the loading door is open. Then, use a funnel to pour your material into the hopper. Be sure not to overfill the hopper, as this can cause problems with the machine.


2. Adjusting Settings


Once you've loaded your material, you'll need to adjust the settings on your machine. The most important setting is the expansion ratio, which determines how much your material will expand during the process. You'll also need to set the curing time and temperature depending on the type of material you're using.


3. Troubleshooting Common Problems


If you're having trouble with your EPS Pre Expander Machine, there are a few things you can try before calling customer service. First, check that all of the settings are correct for.


  • EPS Pre Expander Machine

    How EPS Pre Expander Machine Produces Products


    EPS Pre-Expander machine is an equipment that is used to make EPS products. It is a kind of a machine that can be used for different purposes like making cups, plates, trays and other such things. The machine is very easy to operate and it can be used for different sizes of products. All you need to do is select the size and shape of the product you want to make and then start the machine. The machine will automatically expand the product and will also help in shaping it.


    EPS pre-expander machine is a kind of equipment that can produce products with perfect quality by using steam to pre-expand the raw material. The whole process is completed in a short time, and the product has good reusability.


    EPS pre-expander machine is a kind of machinery that is used in the production of expanded polystyrene products. The machine is also known as an EPS steamer or an EPS cooker. It is used to expand the raw material, which is in the form of beads, into a foam that can be used to make different kinds of products.


    The machine works by heating the beads to a temperature that is above their melting point. This causes the beads to expand and turn into foam. The foaming process is stopped when the desired density is reached. The foam is then cooled and cut into the desired shape and size.

  • Advantages of EPS Pre Expander Machine


    EPS Pre Expander Machine is widely used in construction, packaging, electronics, food and other industries. It has many advantages, such as energy saving, environmental protection, safety and so on. Let's take a look at the advantages of EPS Pre Expander Machine:


    1.The EPS pre-expander machine uses a closed-loop proportional control system to accurately control the expansion ratio of the raw material beads, so that the expanded product has good physical properties and uniformity;


    2.The whole machine is equipped with perfect safety protection devices to ensure the safety of production;


    3.The use of PLC programmable controller + single-chip microcomputer intelligent control panel makes operation more simple and convenient;


    4.The new type EPS pre-expander machine adopts steam heating method, which can save a lot of energy compared with electric heating method;


    5.It is made of high quality stainless steel and has a long service life;


    EPS Pre Expander Machine is a kind of machine which is used to expand EPS beads into expanded polystyrene. EPS is an ideal material for making all kinds of products such as packaging materials, insulation materials, construction materials and so on. EPS Pre Expander Machine has many advantages.The first advantage is that it can make the products more easily and quickly. The second advantage is that it can help you to save money and time. The third advantage is that it can improve the quality of your products. The fourth advantage is that it can help you to reduce the production cost.


    The working principle of this machine is that it uses steam to heat and expand the EPS beads. The expanded EPS beads are then cooled by air and collected in the storage tank.

    EPS Pre Expander Machine
  • EPS Pre Expander Machine

    How to choose the right EPS Pre Expander Machine


    EPS products are widely used in different fields. They can be used to make eps blocks for wall and roof insulation, they can be used for packing fragile products as a cushion, or for packing fish or vegetables to keep them fresh, to make formwork for building houses, or to use only the beads for making lying bags, to mix with cement to get lightweight concrete, or to make lost foam products for making auto parts, etc.


    Some beginners sometimes are confused, when they searched online and asked about price, they will be surprised to see that some quote very cheap price for the pre-expander while others quote a very high price. To know the reason, first, check the name of the machine, is it “continuous eps pre-expander machine”? Or “ full-automatic batch eps pre-expander machine”? And what’s the difference between them? 


    Continuous eps pre-expander machine is almost obsolete now. First, the capacity is small. Normally the model of such expanders are model 90, model 110 or model 120, while automatic batch pre-expander is model 140, 150, 160, 180 or 200. Secondly, continuous pre-expander consumes more steam and it can’t make low-density beads. Automatic batch pre-expander can save almost half of the steam for making the same capacity beads and it can get low density as about 4kg/m3. So, don’t be confused by low price only. 


    If you want to make eps products for lost foam casting, then the normal pre-expander doesn’t suit you. You need to choose the lost foam special-purpose pre-expander. The eps beads for lost foam casting usage is normally very small, the finished product density is also very high, some even reach 50kg/m3 or even higher. They also require the beads are even. The special pre-expander for lost foam can make very precise foaming when it expand high density beads which the normal pre-expander can’t make it.


What are the precautions for using EPS Pre Expander Machine


1. In the event of a sudden power failure, EPS Pre-expander will automatically close the steam valve, open the material door and the compressed air valve to cool it to prevent the foam material in the barrel from condensing into agglomerates. If you want to discharge the raw materials in the barrel, you can blow out the foaming materials in the barrel with a blower or compressed air, and then separate them according to the actual situation of the foaming material.


2. To use the eps foaming machine, the working pressure of compressed air must be greater than 0.6Mpa. All control valves rely on compressed air as power to achieve timely opening and closing. Especially the discharge port depends on the cylinder to lock the valve. If the pressure is not enough or decreases, the discharge port will be pushed open. Therefore, to ensure the normal operation of the foaming machine, the working pressure of compressed air must be guaranteed.


3. When the machine needs to enter the barrel for maintenance, it is necessary to cut off the main power and set up a special person to monitor it. After the maintenance is completed, strictly check the tools and parts left in the barrel, etc. Otherwise, the ventilation plate and rotating bracket at the bottom of the barrel will be damaged.


4. During the production process of the machine, strictly prevent foreign materials mixed in the EPS raw materials from being sent into the foaming barrel, which will damage the ventilation plate at the bottom of the barrel.


5. During the production process, the machine must always pay attention to the sensitive reliability of the electric contact pressure gauge. If problems are found, they must be repaired or replaced in time to ensure the normal and stable production of the machine.


6. When checking and maintaining the machine, remember to turn off the power to avoid personal accidents.

wdh-site wdh-site wdh-site wdh-site wdh-site