This news article was originally written in Spanish. It has been automatically translated for your convenience. Reasonable efforts have been made to provide an accurate translation, however, no automated translation is perfect nor is it intended to replace a human translator. The original article in Spanish can be viewed at
Berstorff: la extrusión sin secretosBerstorff: extrusion without secrets
Ibon Linazisoro15/09/2004
The requirements of the market for extrusion with two spindles are more diverse than ever. Thanks to its different ranges and numerous sizes, Berstorff, represented in Spain by Coscollola commercial, it is excellently positioned in the market and offers the appropriate solution for every need. The UTX ZE, the fourth generation of the extrusion machines of two spindles ZE Berstorff, offers a machine technically demanding and high power in the range of preparation of a mixture. These are just some of the developments of this company in the K.
Line Schaumtandex ZE-KE for foaming in two stages.
Berstorff will present for the first time at K'2004 the Basic ZE series as a new concept of machine within the full range of the extrusion machines of two spindles. The extraordinary relationship of series ZE Basic coste-rendimiento is of particular interest to SMEs. With this system of extrusion Berstorff distinctly expand their participation in its major markets such as Western Europe, the Turkey and the United States. Other points of interest in the growth strategy are the regions of economic development as the Eastern and southern Europe, Russia, the India, China, Thailand and South America.
The spectrum of series ZE Basic process includes the following tasks:
- Laminating and mix plastics
- Incorporate materials of reinforcement in polyolefins and technical plastics
- Production of masterbatches
- Incorporate natural fibers in polyolefins and technical plastics
The Basic ZE series offers with diameters of spindle for 26, 34, 42, 52, 62 and 77 mm with revolutions of standard screw of 600, 900 and 1,200 min-1. The concept of ZE Basic machine is characterized by a very high degree of standardization of individual assemblies such as the recent execution of cylinders, the complete Powertrain (motor-acoplamiento - gear), additional groups, the frame of machine and electrical equipment.
As command will be used, as in the UTX ZE series, the second generation of Berstorff Process Control Advanced
On the other hand, the UTX ZE series, as fourth generation of machines ZE, meets the requirements of the market by its high profitability. The UTX series includes ZE50 UXT, ZE60 UTX, UTX ZE40 and ZE75 UTX sizes. Now includes notable improvements, such as the new system C-Clamp for a change of cylinder with a reduction of time up to 70 percent, compared with conventional fitting flange connections, or the inductive tempered the drilling in form of glasses of the individual sections of the cylinder.
Double spindle ZE 40 UTX extruder.
Physical foam extrusion
The physical foaming of plastic, e.g. PS or PE, PP, in facilities of extrusion is done in Berstorff teams, either in a process of a phase (facility Schaumex) or in one of two (facility Schaumtandex). Because of the advantages of the extruder of two spindles in the two-step process is used increasingly to the extruder of double spindle as main extruder. There is no doubt that the synergies in the area of extruded foams with extrusion the of the of machines of double spindle are allowing to Berstorff positioned their machines on the market with significant advantages. Recently improved the enfriadora extruder, in particular its spindle geometry, which allows this manufacturer to place the second extruder on the same level of ability than the main.
As a complement to the range of products Schaumex, Berstorff offers for low performance, up to a maximum of 200 kg/h, a new alternative: it is an extruder of two spindles in the same direction with length of 24 - 28 D useful and cooling of the molten mass nesting at the back. This type of line is intended for the production of tubes and profiles of PE foam, sheets of foam of PP, PE, PS and for the production of EPP-bead.
On the other hand, broad knowledge of extrusion technique, allows the company to launch interesting improvements such as the new head of "easy gap" sheet for the production of layers of foam-blowing. It is easily adjusts the width of the step from the outside. It is ideal for all kinds of film espumada physically of PS, PE and PP with widths of 1 m to 2 m.
Related Companies or Entities
