Skip to main content
Sister Publication Links
  • Sustainable Plastics
  • Plastics News China
  • Rubber & Plastics News
logo-pn-color
Subscribe
  • Login
  • Register
  • Subscribe
  • News
    • Processor News
    • Suppliers
    • More News
    • End Markets
    • FYI Charts
    • LSR World
    • Multimedia
    • NPE2021
    • K Show
    • ENGEL Sponsored Content
    • Special Reports
    • Top materials of injection molders
      Recycled PET use by product category
      US PET, flexible packaging desintations
      Global fluropolymers additives market: CAGR
    • Exhibitors back NPE cancellation: ‘We couldn't take that risk'
      NPE2021 canceled as in-person event
      NPE reviews its options as pandemic prompts exhibitor to exit
      Machine builders meet pressing needs for plastic in 2020
    • Sponsored By ENGEL Machinery
      Tailored maintenance for injection molding machines and robots
      Sponsored By ENGEL Machinery
      Improve maintenance efficiency with e-connect.monitor
      Sponsored By ENGEL Machinery
      Maximum precision for lowest shot weights
      Sponsored By ENGEL Machinery
      Even more cost effectiveness for small precision parts
    • Injection Molding
    • Blow Molding
    • Film & Sheet
    • Pipe/Profile/Tubing
    • Rotomolding
    • Thermoforming
    • Recycling
    • Machinery
    • Materials
    • Molds/Tooling
    • Product news
    • Design
    • What Keeps You Up At Night
    • Mergers & Acquisitions
    • Sustainability
    • Public Policy
    • Material Insights Videos
    • Numbers that Matter
    • Polymer Points Live
    • Automotive
    • Packaging
    • Medical
    • Consumer Products
    • Construction
    • Videos
    • Galleries
    • Podcasts
    • CEO Issue
    • Best Places to Work
    • Processor of the Year
    • Rising Stars
    • Women Breaking the Mold
  • Opinion
    • The Plastics Blog
    • Kickstart
    • Heavy Metal
    • One Good Resin
    • BRICS and Plastics
    • All Things Data
    • Viewpoint
    • Perspective
    • Mailbag
    • Watching, and hoping, for progress in 2021
      COVID-19 stories dominate 2020 headlines
      Plastic Globes ask: Was there a lighter side in 2020?
      Compounders write a business survival story in 2020
    • Kickstart: Another push to reduce plastic packaging
      Kickstart: People bought a lot of refrigerators in 2020
      Kickstart: RVs gain ground as 'tailor-made' social distance vacation option
      Kickstart: Building a foam platform
    • Heavy Metal: Coronavirus edition, plus the work of working from home
      Don't put off succession planning
      What's a good gift for your cobot? Batteries?
      Here's some big ideas to mull over the holidays
    • Chase expands giving campaign in 2020
      McDivitt will showcase Ascend's COVID-19 work on CNBC's Mad Money
      Move over, Plastic Man: Here comes Plastic Woman
      Star in spotlight with West Virginia philanthropy award
    • The business case for producer responsibility
      Think divided government stalls plastics legislation? Think again
      ACC, NAM eye economic priorities in Biden presidency
      As scrap exports drop, will plastics recycling rate fall?
    • Just how big is thermoforming in North America?
      Changing names for compounders embracing corporate branding
      Diversity the key to outperforming the market
      A timeline of the industry's COVID response
    • Watching, and hoping, for progress in 2021
      The business case for producer responsibility
      Compounders write a business survival story in 2020
      Think divided government stalls plastics legislation? Think again
    • Plastics industry business owners: Listen to your future workforce
      Perspective: ‘Fake news' of a different sort?
      Perspective: Making products in the USA is good for the planet
      Perspective: Reflections on a decade of global industry collaboration on marine litter
    • Modernizing recycling infrastructure will benefit businesses as well as the environment
      Mailbag: Oil-plastics connection is overstated
      Mailbag: Plastics recycling not cost-effective
      Mailbag: Price increases hurting North American PE buyers
  • Shop Floor
    • Blending
    • Compounding
    • Drying
    • Injection Molding
    • Purging
    • Robotics
    • Size Reduction
    • Structural Foam
    • Tooling
    • Training
    • Maintenance can ensure efficient blender operation
      Dosing: Perfect for adding color
      Blending vs dosing: What you need to know
      Going low or high: Comparing volume
    • Colors and custom compounds
      In the laboratory: Compounding solutions
      Recycling content: Resins going ‘green’
      Compounding: Glass and other fillers
    • Dryer maintenance: Don’t err with air
      Dryers: Options for a shop’s process
      Dryer installation: Going central?
      Resins: Hygroscopic or non-hygroscopic
    • Electric injection molding presses: Efficiency is key
      Hydraulic injection molding machines
      Proper maintenance can prevent downtime
      Hybrid injection molding machines
    • Purging Hot runners: Open or closed methods
      Purging extrusion machinery
      Purging extrusion blow molding machines
      Purging: Chemical, abrasive and non-abrasive
    • Controls, special applications boost production, profitability
      Robot maintenance key for smooth operation
      High-speed robots: A rapid way to increase efficiency
      Robots: Every shape and size
    • Maintenance: Key for efficiency
      Shredders: Plastic in pieces
      Safety first for size reduction
      Granulators: The right fit
    • Structural foam molding: Flexibility for processors
      Video: Structural foam molding
    • Mold inventory: How many molds does a shop have?
      Molds: Innovation
      Mold changeover: Saving time and money
      How molds work
    • Labor: Apprenticeships may provide answer
      Internships: Solving the skills gap in-house
      College training, programs
      Lean Six Sigma: Transforming business operation
  • Events
    • Plastics News Events
    • Industry Events
    • Livestreams/Webinars
    • Ask the Expert
    • Polymer Points Live
    • Reifenhäuser Technologies Livestreams
    • 2020 Caps & Closures Library
    • Plastics in Healthcare Library
    • Women Breaking the Mold Networking Forum Library
    • Polymer Points Live - August 2020
      Polymer Points Live - December 2020
      Polymer Points Live - September 2020
      Polymer Points Live - January 2021
    • Plastics in Healthcare 2020
    • Plastics News Executive Forum
    • Plastics in Automotive
    • Plastics News Caps & Closures
    • Plastics in Healthcare
    • Women Breaking the Mold Networking Forum
  • Resin Prices
    • All Resins
    • Commodity TPs
    • High Temp TPs
    • ETPs
    • Thermosets
    • Recycled Plastics
    • Historic Commodity Thermoplastics
    • Historic High Temp Thermoplastics
    • Historic Engineering Thermoplastics
    • Historic Thermosets
    • Historic Recycled Plastics
  • Rankings
    • Injection Molders
    • Blow Molders
    • Film Sheet
    • Thermoformers
    • Pipe Profile Tubing
    • Rotomolders
    • Mold/Toolmakers
    • LSR Processors
    • Recyclers
    • Compounders - List
    • Association - List
    • Plastic Lumber - List
    • All
  • Data Store
  • Directory
  • More+
    • Classifieds
    • Digital Edition
    • Newsletters
    • Sponsored Content
    • Processor of the Year submissions
    • White Papers
    • Sponsored By Mitsubishi
      Innovative new technology from Mitsubishi Engineering-Plastics Corporation helps reduce emission footprints
      Canon Virginia, Inc.
      Sponsored Content By Canon Virginia, Inc.
      Canon Virginia Inc. brings collaboration to the table
      Sponsored By CDS MACHINES
      Facing medical equipment shortages during COVID-19 outbreak?
      Sponsored Content By Canon Virginia, Inc.
      Transform your molding capabilities with the Canon Shuttle Mold System
    • Sponsored By Conexiom
      Use Sales Order Automation to free up time for CSRs to focus on customers, not manual entry
    • Place an Ad
    • Sign up for Early Classified
MENU
Breadcrumb
  1. Home
  2. News
May 07, 2019 02:00 AM

Molding expert discusses the importance of preventive maintenance

Bill Bregar
  • Tweet
  • Share
  • Share
  • Email
  • More
    Print
    LinkedIn
    Hartwick

    Exton, Pa. — Attendees at the second day of Boy Machinery Inc.'s April 9-11 open house — a day dedicated to thermoplastic molding — got a dose of good news about high-tech molding, resin drying and injection molds.

    Then they heard from Bill Hartwick. You could call him Mr. Dirty Jobs, like that TV show — only it's all plastics machinery, all the time for the Canadian troubleshooter.

    Hartwick's presentation was on preventive maintenance. But his slide show depicted on gory detail what happens if you never do any maintenance, let along change the hydraulic oil.

    "The things you learn from your mistakes is where you really learn, said Hartwick, technical director of Filter Specialties Co., a field services firm in Milton, Ontario.

    Hartwick said the definition of "preventive maintenance" is to perform the work while the equipment is still operating, so you don't have a catastrophic failure. He showed what could happen, posting a series of slides depicting aging machines in a state of entropy and decay. It's his personal collection of common mistakes by companies that fail to keep up with maintenance.

    "People are creatures of habit," he said. "If we could make them have the right habits, this is a good thing."

    Hartwick suggested starting simple. List things you want to check. Set up a schedule. Create work instructions. First write it down manually, then create a computer system, he said.

    He gave some basic advice: Properly align the barrel, adjusting it to make sure the nozzle is centered so that plastic doesn't leak at the nozzle. Inspect the check ring for wear. Buy parts only from the original equipment manufacturer; not from the aftermarket. Check hydraulic fluid. Clean the filters. Check belts. Check tie bar stretch.

    "Just the simple term, 'know your machine.' Because you're counting on it every day," Hartwick said. It's easy to take short cuts or just put off maintenance. "It looks simple to do these repairs, and it's not rocket science. but you gotta pay attention," he said.

    Steve Corcoran, national sales manager of Dri-Air Industries Inc. delivered a drying 101 presentation. Not all resins have to be dried, but some resins are hygroscopic, and absorb moisture, like ABS and nylon.

    If moisture is not properly removed, that can cause problems in molded parts like visible color changes, splay marks and striations, Corcoran said.

    Dri-Air, of East Windsor, Conn., makes dryers.

    Screw designer Michael Durina said the MDP screw tip from his company, MD Plastics Inc., has the lowest pressure drop in the industry. The Min-Shut automatic shutoff nozzle tip prevents drooling and stringing, he said.

    The new Inject-EX injection unit uses a stationary screw and plunger assembly. Md Plastics President Durina said the arrangement is very precise, addressing what he said are several deficiencies of the reciprocating screw.

    Md Plastics is based in Columbiana, Ohio.

    Letter
    to the
    Editor

    Do you have an opinion about this story? Do you have some thoughts you'd like to share with our readers? Plastics News would love to hear from you. Email your letter to Editor at [email protected]

    Get our newsletters

    Staying current is easy with Plastics News delivered straight to your inbox, free of charge.

    Subscribe today

    Subscribe to Plastics News

    Subscribe now
    Connect with Us
    • LinkedIn
    • Facebook
    • Twitter
    • Instagram

    Plastics News covers the business of the global plastics industry. We report news, gather data and deliver timely information that provides our readers with a competitive advantage.

    logo-pn-color
    Contact Us

    1155 Gratiot Avenue
    Detroit MI 48207-2997

    Customer Service:
    877-320-1723

    Resources
    • About
    • Staff
    • Editorial Calendar
    • Media Kit
    • Data Store
    • Digital Edition
    • Custom Content
    • People
    • Contact
    • Careers
    • Sitemap
    Related Crain Publications
    • Sustainable Plastics
    • Rubber & Plastics News
    • Urethanes Technology
    • Plastics News China
    • European Rubber Journal
    • Tire Business
    Legal
    • Terms and Conditions
    • Privacy Policy
    • Privacy Request
    Copyright © 1996-2021. Crain Communications, Inc. All Rights Reserved.
    • News
      • Processor News
        • Injection Molding
        • Blow Molding
        • Film & Sheet
        • Pipe/Profile/Tubing
        • Rotomolding
        • Thermoforming
        • Recycling
      • Suppliers
        • Machinery
        • Materials
        • Molds/Tooling
        • Product news
        • Design
      • More News
        • What Keeps You Up At Night
        • Mergers & Acquisitions
        • Sustainability
        • Public Policy
        • Material Insights Videos
        • Numbers that Matter
        • Polymer Points Live
      • End Markets
        • Automotive
        • Packaging
        • Medical
        • Consumer Products
        • Construction
      • FYI Charts
        • Current FYI
      • LSR World
      • Multimedia
        • Videos
        • Galleries
        • Podcasts
      • NPE2021
      • K Show
      • ENGEL Sponsored Content
      • Special Reports
        • CEO Issue
        • Best Places to Work
        • Processor of the Year
        • Rising Stars
        • Women Breaking the Mold
    • Opinion
      • The Plastics Blog
      • Kickstart
      • Heavy Metal
      • One Good Resin
      • BRICS and Plastics
      • All Things Data
      • Viewpoint
      • Perspective
      • Mailbag
    • Shop Floor
      • Blending
      • Compounding
      • Drying
      • Injection Molding
      • Purging
      • Robotics
      • Size Reduction
      • Structural Foam
      • Tooling
      • Training
    • Events
      • Plastics News Events
        • Plastics News Executive Forum
        • Plastics in Automotive
        • Plastics News Caps & Closures
        • Plastics in Healthcare
        • Women Breaking the Mold Networking Forum
      • Industry Events
      • Livestreams/Webinars
      • Ask the Expert
      • Polymer Points Live
      • Reifenhäuser Technologies Livestreams
      • 2020 Caps & Closures Library
      • Plastics in Healthcare Library
      • Women Breaking the Mold Networking Forum Library
    • Resin Prices
      • All Resins
      • Commodity TPs
        • Historic Commodity Thermoplastics
      • High Temp TPs
        • Historic High Temp Thermoplastics
      • ETPs
        • Historic Engineering Thermoplastics
      • Thermosets
        • Historic Thermosets
      • Recycled Plastics
        • Historic Recycled Plastics
    • Rankings
      • Injection Molders
      • Blow Molders
      • Film Sheet
      • Thermoformers
      • Pipe Profile Tubing
      • Rotomolders
      • Mold/Toolmakers
      • LSR Processors
      • Recyclers
      • Compounders - List
      • Association - List
      • Plastic Lumber - List
      • All
    • Data Store
    • Directory
    • More+
      • Classifieds
        • Place an Ad
        • Sign up for Early Classified
      • Digital Edition
      • Newsletters
      • Sponsored Content
      • Processor of the Year submissions
      • White Papers