Painting & Coating Industry (PCI) logo Powder coating summit logo
  • Sign In
  • Create Account
  • Sign Out
  • My Account
  • NEWS
  • PRODUCTS
  • MATERIALS
  • TECHNOLOGIES
  • RESOURCES
  • EVENTS
  • DIRECTORIES
  • EMAGAZINE
  • CONTACT
  • SIGN UP!
cart
facebook twitter linkedin youtube
  • NEWS
  • Latest News
  • Market Trends & Reports
  • Price Alerts
  • Subscribe to eNewsletters
  • Global Top 10/ PCI 25
  • Weekly Featured Article
  • COATLE Word Game
  • PRODUCTS
  • Product News
  • Must See Products and Services
  • MATERIALS
  • Additives
  • Resins/Polymers
  • Pigments
  • Equipment
  • Distributors
  • TECHNOLOGIES
  • Adhesives
  • Architectural Coatings
  • FINISHING
  • Industrial Coatings
  • Nanotechnology
  • Powder Coatings
  • Solventborne
  • Special Purpose Coatings
  • Sustainability
  • UV Coatings
  • Waterborne
  • FINISHING
  • Finishing News
  • Finishing Technologies
  • Finishing Equipment
  • Finishing Today
  • RESOURCES
  • Columns
  • Blogs
  • Coatings Supplier Handbook
  • Podcasts and Videos
  • PCI Store
  • Classifieds
  • eBooks
  • Sponsor Insights
  • White Papers
  • COATLE Word Game
  • Columns
  • Ask Joe Powder
  • Did you know?
  • Distribution Dive
  • Focus on Canada
  • Formulating With Mike
  • Innovation Insights
  • Moody's Coatings Conundrums
  • Powder Coating Perspectives
  • Target the Market
  • TiO2 Insider
  • Blogs
  • Editor's Viewpoint
  • Industry Insights
  • Podcasts and Videos
  • COAT-IT! Podcast
  • Videos/PCI TV
  • EVENTS
  • Coatings Trends & Technologies Summit
  • Paint and Coatings Academy
  • Webinars
  • Calendar of Events
  • Lifetime Achievement Award
  • DIRECTORIES
  • Buyer's Guide
  • Equipment Directory
  • Materials Directory
  • EMAGAZINE
  • Current Issue
  • eMagazine Archive
  • China Issue Archive
  • Editorial Advisory Board
  • CONTACT
  • Contact Us
  • Advertise
  • Subscribe to eMagazine
  • Subscribe to eNewsletters
Painting & Coating Industry (PCI) logo Powder coating summit logo
search
cart
facebook twitter linkedin youtube
  • Sign In
  • Create Account
  • Sign Out
  • My Account
Painting & Coating Industry (PCI) logo Powder coating summit logo
  • NEWS
    • Latest News
    • Market Trends & Reports
    • Price Alerts
    • Subscribe to eNewsletters
    • Global Top 10/ PCI 25
    • Weekly Featured Article
    • COATLE Word Game
  • PRODUCTS
    • Product News
    • Must See Products and Services
  • MATERIALS
    • Additives
    • Resins/Polymers
    • Pigments
    • Equipment
    • Distributors
  • TECHNOLOGIES
    • Adhesives
    • Architectural Coatings
    • FINISHING
      • Finishing News
      • Finishing Technologies
      • Finishing Equipment
      • Finishing Today
    • Industrial Coatings
    • Nanotechnology
    • Powder Coatings
    • Solventborne
    • Special Purpose Coatings
    • Sustainability
    • UV Coatings
    • Waterborne
  • RESOURCES
    • Columns
      • Ask Joe Powder
      • Did you know?
      • Distribution Dive
      • Focus on Canada
      • Formulating With Mike
      • Innovation Insights
      • Moody's Coatings Conundrums
      • Powder Coating Perspectives
      • Target the Market
      • TiO2 Insider
    • Blogs
      • Editor's Viewpoint
      • Industry Insights
    • Coatings Supplier Handbook
    • Podcasts and Videos
      • COAT-IT! Podcast
      • Videos/PCI TV
    • PCI Store
    • Classifieds
    • eBooks
    • Sponsor Insights
    • White Papers
    • COATLE Word Game
  • EVENTS
    • Coatings Trends & Technologies Summit
    • Paint and Coatings Academy
    • Webinars
    • Calendar of Events
    • Lifetime Achievement Award
  • DIRECTORIES
    • Buyer's Guide
    • Equipment Directory
    • Materials Directory
  • EMAGAZINE
    • Current Issue
    • eMagazine Archive
    • China Issue Archive
    • Editorial Advisory Board
  • CONTACT
    • Contact Us
    • Advertise
    • Subscribe to eMagazine
    • Subscribe to eNewsletters
  • SIGN UP!
Industrial Coatings

New Water Jetting Process Cleans Weld Seams Sustainably and Efficiently

By Doris Schulz
New Water Jetting Process Cleans Weld Seams Sustainably and Efficiently
Photo courtesy of Ecoclean GmbH.
New Water Jetting Process Cleans Weld Seams Sustainably and Efficiently
Photo courtesy of Ecoclean GmbH.
New Water Jetting Process Cleans Weld Seams Sustainably and Efficiently
New Water Jetting Process Cleans Weld Seams Sustainably and Efficiently
July 15, 2021

Electric and hybrid vehicles are changing the way vehicles are built in ways that go far beyond the drive technology. For example, due to the weight of the battery, integral subfames now need a higher load-bearing capacity. The redesign of these axle components is also prompting many vehicle manufacturers to reconsider and reassess their production processes. One of these processes is the cleaning step to remove impurities such as silicate islands, scale and smoke residues formed during welding; these can cause major quality issues in the subsequent cathodic dip painting process and lead to corrosion damage. The cleaning technology generally used is blasting with a solid medium, for example corundum. To remove dust and abrasive residues from the parts prior to cathodic dip painting, another cleaning step in a separate machine is required.

 

Focus On Cost Efficiency, Sustainability and Occupational Health and Safety

These conventional blasting processes with an additional aqueous cleaning step are wear-intensive and costly. Therefore, when designing a new production line for integral subframes, the project planner of a renowned German OEM sought information at parts2clean about ways to optimize this cleaning process. On the one hand, the aim was to clean weld seams with same or better results, but cheaper, with less maintenance, and saving on resources. On the other hand, the dust pollution occurring in the vicinity of the solid-state blasting machines due to fragmented abrasive needed to be eliminated in order to improve working conditions.

 

Removing Welding Residues - Parts Cleaning Included

The planner found what he was looking for with Ecoclean's EcoCbooster technology. The patented process employs medium-pressure water jetting in the range between 300 and 700 bar without addition of abrasives. Through the use of ultrasound, the pre-stressed column of water turns into an ultra-high frequency pulsating water jet after exiting the nozzle. This imparts a much higher kinetic energy to the jet, such that it reliably and reproducibly eliminates silicate and weld spatter as well as scale and smoke residues from the surfaces in a clearly defined operating window. Feed rates of up to 800 mm per second are possible, with a robot moving either the workpiece or the nozzle tool.

The part is also cleaned at the same time the welding residues are removed, thus dispensing with the need for an additional cleaning step and the corresponding machine. This not only noticeably decreases investments related to the cleaning process, but also ensures more competitive unit costs because operating costs are significantly reduced. Another factor contributing to the high economic and resource efficiency of the process is the effective treatment of the process water, which is mixed with a corrosion protection medium so that it can be recirculated for a long time.

 

Selectively Cleaning External and Internal Geometries

The effective range of the water jet can be precisely adapted to the application by using different nozzle geometries, for example fan and solid-jet nozzles as well as lances. Among other things, this enables not only the outer but also the inner contours of the integral subframes to be selectively cleaned, in contrast to conventional jet-cleaning processes with abrasives.

 

Process Engineering and Validation in Technology Centre

The process parameters, such as nozzle geometry, pressure and feed rate, were precisely adjusted using a special test set-up at the manufacturer's Technology Centre in Monschau. To validate the new water jetting process, integral subframes were coated in the cathodic dip painting line cleaning and then subjected to a lengthy salt spray test. The results were impressive: The weld seams were cleaner after treatment with the pulsating water jet than after blasting with abrasive media, and any discoloration from the welding process still visible on the surface had no effect on the quality of the paint finish. The high corrosion protection requirements had been met. The new cleaning solution also proved to be a good choice in terms of cost/benefit.

 

Fully Automatic Jetting, Cleaning and Drying In 50-Second Cycles

In order to implement the developed process in a fully automated machine concept, an integral subframe had to be jetted, cleaned and dried within 50 seconds. To meet this requirement, the cleaning machine has three independently functioning jetting modules with integrated manipulator, a hot air dryer, one robot each for loading and unloading, and a bath treatment unit for the process water.

Pallet cages loaded with several integral subframes to be processed are transported to the machine. The machine’s loading robot picks up the parts and places them on the transfer stations of the jet modules. The manipulator of the respective module picks up the part and moves it in a defined sequence to the jet tool, treating the welding contours in a specific manner. After cleaning, the manipulator places the integral subframe on a clean surface. From here, the loading robot takes it to the drying step. On exiting the dryer, the subframe is picked up by the unloading robot and hooked into the rack for painting.

To eliminate the transport path between the welding and cleaning process, the EcoCbooster can also be connected directly to the welding cell.

The vehicle manufacturer has been using the new cleaning system in series production since mid-2020. Due to the optimizations achieved, the company is now considering integrating the new cleaning solution into further production lines for integral subframes.

For more information, visit www.ecoclean-group.net.

KEYWORDS: Automotive Coatings Pretreatment

Share This Story

Looking for a reprint of this article?
From high-res PDFs to custom plaques, order your copy today!

Doris Schulz, Journalist, Schulz Presse Text, Korntal, Germany

Recommended Content

JOIN TODAY
to unlock your recommendations.

Already have an account? Sign In

  • pci1022-Kinaltek-Lead-1170.jpg

    A Novel Pigment Production Technology

    Following an extensive R&D program that demonstrated...
    Paint and Coating Pigments
    By: Jawad Haidar and Nitin Soni
  • pci global top 10

    2025 Global Top 10: Top Paint and Coatings Companies

    The following is PCI’s annual ranking of the top 10...
    Global Top 10 and PCI 25
    By: Courtney Bassett
  • 2025 pci 25

    2025 PCI 25: Top Paint and Coatings Companies

    PCI's annual ranking of the top 25 North American paint...
    Global Top 10 and PCI 25
    By: Courtney Bassett
You must login or register in order to post a comment.

Report Abusive Comment

Manage My Account
  • eMagazine
  • eNewsletter
  • Online Registration
  • Subscription Customer Service

More Videos

Sponsored Content

Sponsored Content is a special paid section where industry companies provide high quality, objective, non-commercial content around topics of interest to the PCI audience. All Sponsored Content is supplied by the advertising company and any opinions expressed in this article are those of the author and not necessarily reflect the views of PCI or its parent company, BNP Media. Interested in participating in our Sponsored Content section? Contact your local rep!

close
  • Modern arapartment complex painted in bright colors.
    Sponsored byEPS - Engineered Polymer Solutions

    Architectural Polymers Leading the Way in Coatings Innovation

  • paint sprayer in a workshop
    Sponsored byallnex

    Enabling Performance and Compliance: allnex Introduces a New Line of VOC Exempt Solvent-Borne Resins

Popular Stories

BASF SE Logo

BASF Reportedly Eyes Exit from Coatings

No. 7 BASF Coatings

BASF Comments on Potential Sale of Coatings Business

No. 3 AkzoNobel

AkzoNobel’s $1.4B Divestment Signals Strategy Shift



PCI Buyers Guide

Submit a Request for Proposal (RFP) to suppliers of your choice with details on what you need with a click of a button

Start your RFP

Browse our Buyers Guide for manufacturers and distributors of all types of coatings products and much more!

Find Suppliers

Events

September 3, 2025

Coatings Trends & Technologies Summit

The Coatings Trends & Technologies (CTT) Summit is an annual conference for both liquid and powder coatings formulators and manufacturers to discuss innovations in coatings technology. This event combines high-quality technical presentations, a resource-rich exhibit hall, and dedicated networking opportunities to connect scientific minds, foster innovation, and cultivate game-changing new ideas!

January 1, 2030

Webinar Sponsorship Information

For webinar sponsorship information, visit www.bnpevents.com/webinars or email webinars@bnpmedia.com.

View All Submit An Event

Poll

Longest-running laboratory experiment

What is the longest-running laboratory experiment?
View Results Poll Archive

Products

CTT Summit Short Courses (Live 9/3/25)

Coatings Trends & Technologies Summit is expanding its offerings with four short courses. These short courses will offer an extensive day of interactive learning.

See More Products
pci voices from the top ebook

PCI CASE EBOOK

Related Articles

  • datacolor

    Getting it Right: Formulating Color Efficiently and Sustainably

    See More
  • mrs_bulletin_cover_mos2.jpg

    Water-Free Coating Process Advances 2D Electronics

    See More
  • Holliday Pigments Invests in Water Treatment Process

    See More

Related Products

See More Products
  • marketsandmarketslogo.jpg

    Metallic Powder Coatings Market by Process Type (Bonding, Blending, Extrusion)...

  • pci march 2020

    PCI March 2020 Issue

See More Products
×
Photo courtesy of Ecoclean GmbH.
Photo courtesy of Ecoclean GmbH.

Keep the info flowing with our eNewsletters!

Get the latest industry updates tailored your way.

JOIN TODAY!
  • RESOURCES
    • Advertise
    • Contact Us
    • Directories
    • Store
    • Want More
  • SIGN UP TODAY
    • Create Account
    • eMagazine
    • eNewsletters
    • Customer Service
    • Manage Preferences
  • SERVICES
    • Marketing Services
    • Reprints
    • Market Research
    • List Rental
    • Survey & Sample
  • STAY CONNECTED
    • LinkedIn
    • Facebook
    • Youtube
    • X (Twitter)
  • PRIVACY
    • PRIVACY POLICY
    • TERMS & CONDITIONS
    • DO NOT SELL MY PERSONAL INFORMATION
    • PRIVACY REQUEST
    • ACCESSIBILITY

Copyright ©2025. All Rights Reserved BNP Media.

Design, CMS, Hosting & Web Development :: ePublishing

Painting & Coating Industry (PCI) logo Powder coating summit logo
search
cart
facebook twitter linkedin youtube
  • Sign In
  • Create Account
  • Sign Out
  • My Account
Painting & Coating Industry (PCI) logo Powder coating summit logo
  • NEWS
    • Latest News
    • Market Trends & Reports
    • Price Alerts
    • Subscribe to eNewsletters
    • Global Top 10/ PCI 25
    • Weekly Featured Article
    • COATLE Word Game
  • PRODUCTS
    • Product News
    • Must See Products and Services
  • MATERIALS
    • Additives
    • Resins/Polymers
    • Pigments
    • Equipment
    • Distributors
  • TECHNOLOGIES
    • Adhesives
    • Architectural Coatings
    • FINISHING
      • Finishing News
      • Finishing Technologies
      • Finishing Equipment
      • Finishing Today
    • Industrial Coatings
    • Nanotechnology
    • Powder Coatings
    • Solventborne
    • Special Purpose Coatings
    • Sustainability
    • UV Coatings
    • Waterborne
  • RESOURCES
    • Columns
      • Ask Joe Powder
      • Did you know?
      • Distribution Dive
      • Focus on Canada
      • Formulating With Mike
      • Innovation Insights
      • Moody's Coatings Conundrums
      • Powder Coating Perspectives
      • Target the Market
      • TiO2 Insider
    • Blogs
      • Editor's Viewpoint
      • Industry Insights
    • Coatings Supplier Handbook
    • Podcasts and Videos
      • COAT-IT! Podcast
      • Videos/PCI TV
    • PCI Store
    • Classifieds
    • eBooks
    • Sponsor Insights
    • White Papers
    • COATLE Word Game
  • EVENTS
    • Coatings Trends & Technologies Summit
    • Paint and Coatings Academy
    • Webinars
    • Calendar of Events
    • Lifetime Achievement Award
  • DIRECTORIES
    • Buyer's Guide
    • Equipment Directory
    • Materials Directory
  • EMAGAZINE
    • Current Issue
    • eMagazine Archive
    • China Issue Archive
    • Editorial Advisory Board
  • CONTACT
    • Contact Us
    • Advertise
    • Subscribe to eMagazine
    • Subscribe to eNewsletters
  • SIGN UP!