Schwing Technologies @ Index20: Optimized cle...
Schwing Technologies @ Index20

Optimized cleaning process with switchable 2-side sound

Functional principle of thermal vacuum pyrolysis: The cleaning process takes place in an electrically heated vacuum cleaning chamber. The temperature is measured directly at the machine parts, which are initially heated slowly and particularly gently. Here, a large part of the adhering polymer melts off and flows out. The decomposition of the remaining material takes place at approx. 450 °C - remaining carbon is finally removed by adding air (oxidation) (source: Schwing Technologies)
Functional principle of thermal vacuum pyrolysis: The cleaning process takes place in an electrically heated vacuum cleaning chamber. The temperature is measured directly at the machine parts, which are initially heated slowly and particularly gently. Here, a large part of the adhering polymer melts off and flows out. The decomposition of the remaining material takes place at approx. 450 °C - remaining carbon is finally removed by adding air (oxidation) (source: Schwing Technologies)

This autumn, production processes for nonwovens are again the focus of the upcoming Index exhibition in Geneva/Switzerland from October 19-22, 2021. Schwing Technologies GmbH, Neukirchen-Vluyn/Germany, will focus on thermal cleaning solutions: the optimized Green Cleaning solutions for removing polymer from large, contaminated components for nonwovens production. Up to 6m long components, such as meltblown and spunbond dies as well as spinnerets, no longer need to be flipped thanks to double-sided, alternating ultrasonic units.


Optimized cleaning process with switchable 2-side sound
For the first time, Schwing is presenting its environmentally friendly cleaning shops with optimized post-treatment systems. Until now, the ultrasonic process required 2 work steps. The new 2-side sound means that machine parts no longer have to be manually turned. Savings on personnel costs, rapid use of tooling and reduced machine downtime are the advantages. The process minimizes risk of damaging dies. Information about the vacuum pyrolysis cleaning systems will also be provided. The entire process, which takes about 8-12 hours, involves several cleaning steps, including thermal cleaning of components, subsequent high-pressure washing and ultrasonic cleaning. The drying phase is followed by a final inspection.
Cost-saving technology for environmentally friendly polymer removal
The fully automatic systems by the German specialist remove PET, PP and PE (as well as other polymers) and clean large dies and spin packs efficiently. Safe and material-friendly technology measures the precise temperature directly on the part and guarantees residue-free results – even inside mounted components or complex tooling. Vacuclean system consumes very little electrical energy and is equipped with a special catalyst to treat fumes, protecting the environment. Further advantages, apart from the easy installation of the system, are its low operating and maintenance costs. Production of technical nonwovens benefits from the increased operational availability and service life of properly cleaned tooling.

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