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OPC UA - what exactly is that?

OPC UA – what exactly is that? To enable communication between different systems ...

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Checklist - What to do in times of low production capacity utilization?

In many companies there are situations in which the production capacity utilisation ...

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SHS Corona Hilfe SHScoronaASSIST

SHS Corona Help

SHS plus GmbH puts together Corona aid package for companies in the plastics industry SHS ...

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Can I increase my cooling power if I connect the cooling tanks?

In the extrusion of pipes, cables, profiles and many other semi-finished products, ...

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Extruder dimensioning & screw diameter - what you should consider...

The choice of the right extruder size is based on many different factors and can ...

Weiterlesen »

Changes in companies - hurdle and opportunity at the same time

Every optimization, regardless of whether it is a technological, process engineering ...

Weiterlesen »

Drying plastics - how to find the right parameters?

The processing behavior and the achievable product properties of plastics can ...

Weiterlesen »

Design rules for the design of spiral mandrel dies

Spiral mandrel distributors are among the most powerful extrusion tools for the ...

Weiterlesen »

Cleaning of Extrusion dies - how?

Extrusion dies should ideally be designed and coated in such a way that production ...

Weiterlesen »

(Automatic) Optimisation of the Barrel Temperatures in Extrusion

As already mentioned in the previous article, it is always advisable to optimally ...

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Seminars and Training for Extrusion

Are you interested in our training courses and seminars? We create individual trainings, seminars and courses, targeted to the needs of the user. Or find out more about our joint offers on the subject ...

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Vipra – Virtual Production Assistancy

Vipra – Virtual Production Assistance The Vipra system is a modular software suite for manufacturing companies, primarily from the plastics processing industry. The Vipra System connects to production ...

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SHS plus GmbH – Troubleshooting Plastics Processing

SHS plus GmbH deals with solving problems in plastics processing, the implementation of digitisation concepts and the development of innovative (assistance) systems for plastics processing.

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OPC UA – what exactly is that? To enable communication between different systems (e.g. a plastics processing machine / injection moulding machine / extruder) and a PC application (e.g. a virtual assistance system) or higher-level organisational systems (e.g. product control systems, MES, etc.) it is necessary to know in which […]

OPC UA – what exactly is that?

In many companies there are situations in which the production capacity utilisation is extremely reduced, whether due to economic or seasonal fluctuations or extraordinary events. In such times, it is advisable to get things done that often cannot be done in the normal production routine due to time constraints and […]

Checklist – What to do in times of low production …

SHS Corona Hilfe SHScoronaASSIST

SHS plus GmbH puts together Corona aid package for companies in the plastics industry SHS plus GmbH from Dinslaken decides to offer Corona assistance to companies in the plastics industry. Companies in the plastics industry can now access the services of SHS plus GmbH as part of the “SHS Corona […]

SHS Corona Help

In the extrusion of pipes, cables, profiles and many other semi-finished products, immersion cooling tanks or spray cooling tanks are used in which the hot extrudate is introduced and cooled with cooled water. Both the immersion cooling tank – in which the extrudate is completely submerged in a water bath […]

Can I increase my cooling power if I connect the …

The choice of the right extruder size is based on many different factors and can have a decisive influence on the achievable product quality and also on the achievable productivity of the production. General statements are often not correct and must therefore be thoroughly questioned before they are implemented in […]

Extruder dimensioning & screw diameter – what you should consider…

Every optimization, regardless of whether it is a technological, process engineering or a organizational measure, usually requires an adaptation of behavior patterns. Adapting behaviour patterns, especially when the behaviour to be changed has been practised for years, is often not easy and in many cases represents a hurdle, the overcoming […]

Changes in companies – hurdle and opportunity at the same …

The processing behavior and the achievable product properties of plastics can change enormously depending on the residual moisture content of the polymer raw material. In most cases, too high  residual moisture leads to problems, but in some cases quality problems or processing problems also occur due to too low residual […]

Drying plastics – how to find the right parameters?

Spiral mandrel distributors are among the most powerful extrusion tools for the production of pipes, films, hoses and bottles and are available in a wide range of variants on the market. Spiral mandrel distributors can be used for various production processes and a good design of the spiral mandrel distributor […]

Design rules for the design of spiral mandrel dies

Extrusion dies should ideally be designed and coated in such a way that production can be carried out without any interruption for cleaning. This aspect is already taken into account in the design of the flow paths, in the selection of steels and coatings as well as in the selection […]

Cleaning of Extrusion dies – how?

As already mentioned in the previous article, it is always advisable to optimally parameterize the temperatures of the extrusion cylinder to avoid production problems and to ensure economical and productive production. Optimizing cylinder temperatures while production is running is not an easy task and is therefore often avoided due to […]

(Automatic) Optimisation of the Barrel Temperatures in Extrusion

Today’s extruders usually have several different heating (or heating/cooling) zones, which can be individually parameterised with regard to the desired temperature. The temperature control of the extruder is essential for the achievable product quality as well as for the productivity of the plant. Nevertheless, in practice it happens very often […]

How to set up optimal extrusion barrel temperatures

In plastics processing, quality problems are often caused by the presence of angel hair, impurities or dust. Angel hair can be recognized as very fine, hair-like plastic threads that can be formed during material transport. Dusts are fine solid particles of different sizes and can be made of plastic, but […]

Angel hair & dust – causes and ways to avoid

  Blocking of films is the most frequent cause of complaints about films. In some light cases, the problem is only a slight quality defect, but in more extreme cases it leads to large quantities of rejects, as entire rolls have to be disposed of on which blocking has occurred. […]

Blocking of Films

When extruding profiles, the maximum production speed is one of the most important factors for the calculation af a quotation. If the production speed is assumed to be higher than the real production can be in practice, this can mean high losses for the extrusion plant and represents a high […]

How to calculate the maximum line speed for a new …

Extrusion cylinders are generally divided into smooth barrel extruders (conventional extruders) and grooved extrusion cylinders (grooved barrel extruders, helibars, etc.). The differences between the different systems lie, as the name suggests, in the design of the extruder barrel. While the conventional extruder has a completely smooth cylinder, a grooved system […]

Smooth barrel extruder or grooved barrel extruder – when, which …

In the course of the current trends towards Industry 4.0 (smart factory), the availability of as much process information as possible is one of the first necessary steps. Process information, machine control parameter and sensor values are generally available to a large extent, but it is often not easily possible […]

How you can read data and process parameters from machine …

In order to achieve a high product quality, additives are added to the raw materials, which cause a change or improvement of the product properties. Nowadays plastic products are often used in areas where the use of pure plastics would be unthinkable. After the melting zone of the extrusion screw […]

How to improve the melt quality by using dynamic mixers

The term “assistance system” refers to electrical, information technology or mechatronic systems (e.g. a software, a car) that provide the user with assistance in a current real situation or even actively intervene in the operating process and carry out actions in the background.   As virtual assistants (e.g. in the […]

Virtual assistance systems for extrusion – sense or nonsense?

The screw of an extruder is considered as the “heart” of the machine and can have a significant influence on the achievable product quality, the achievable maximum throughput and the efficiency of the production plant. There are different basic concepts of screw design, which have different advantages and disadvantages. In […]

The 3 most important extruder screws – design, fields of …

Due to the poor thermal conductivity of thermoplastics, residual stresses (tensile and compressive residual stresses) are build up in the walls of the product during cooling processes after extrusion. Deformations and distortion of the products often result from the residual stresses, whereby the presence of the residual stresses becomes visible. […]

5 ways to determine residual stresses on extruded pipes

In addition to the width of a film and the profile tolerance, the flatness is considered as one of the most important quality criterions. Good flatness refers to film products with a high planarity, also a low tendency for sagging areas or bulges. The flatness of a film is an […]

How to improve the flatness of extruded film

In extrusion, plastic granulate is plasticized by converting mechanical energy into thermal energy. The mechanical energy required for this (torque and rotation of the screw) is generated with the aid of electric motors, i.e. from electrical energy. The additional heaters often only contribute a small part to the overall energy […]

How you can halve the energy consumption of your extruder …

Voids/blowholes/vacuoles are frequent quality problems that can occur especially in the manufacture of thick-walled products. Although the cause of this problem is well known, it is often difficult and time-consuming to avoid it. When cooling plastics from melt temperature to ambient temperature, the specific volume or density of the plastic […]

How to avoid vacoules in thick walled extrudates

  Compressed air leaks are one of the biggest hidden cost drivers in production companies. For this reason, compressed air leakage detection is carried out at regular intervals in many companies. However, such actions are time-consuming and often very unpopular with the responsible employees, since reliable leak detection is usually […]

How to avoid compressed air leaks without constantly searching yourself

During extrusion, the plastic is heated from the ambient temperature level to an elevated temperature level (usually >180 °C) so that the materials melts and becomes plastically deformable. After forming the product (film, tube, profile, rod, etc.), the product is cooled down to ambient temperature to achieve dimensional stability. Thus, […]

The 3 most important requirements for waste heat usage from …

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