Machines under assembly and wrapped for shipment in the LONGSN workshop hall

Knowledge

Technical guides on plastic bottle production and packaging

224 articles on neck cutting, leak testing, bagging, cap lining and assembly, blow moulding, injection moulding, labeling and filling, written by the LONGSN engineering team.

All Articles

All Articles

Newest first. Page 4 of 11.

  1. Blow Moulding

    What Is A Blow Moulding Machine And Its Uses

    Scaling hollow plastic part production presents significant operational risks.
  2. Injection Molding

    How Much Does An Injection Molding Machine Cost?

    Purchasing an industrial molding system represents a major capital expenditure.
  3. Injection Molding

    What Qualifications Do You Need For Injection Molding?

    Plastic production has fundamentally shifted from manual manufacturing to highly technical, automated systems.
  4. Blow Moulding

    How the Blow Moulding Process Works

    Understanding the thermodynamics and mechanical operations of polymer forming proves critical when evaluating capital expenditure…
  5. Injection Molding

    How Profitable Is Injection Molding?

    The injection molding industry demands heavy capital investment and presents a famously steep learning curve.
  6. Injection Molding

    How Much Does An Injection Molding Machine Cost?

    Modern manufacturing relies heavily on precision machinery. Scaling your production requires careful financial planning.
  7. Injection Molding

    Can You Do Plastic Injection Molding At Home?

    Decentralized manufacturing continues to reshape how hardware developers and prosumers approach product creation.
  8. Injection Molding

    What Is The Injection Molding Machine?

    Manufacturing complex plastic parts at scale demands immense precision and speed.
  9. Injection Molding

    What Are The Main Parts Of An Injection Molding Machine?

    Manufacturing plastic components demands intense precision, immense pressure, and strict thermal control.
  10. Injection Molding

    What Are The Maintenance Requirements For An Injection Molding Machine?

    Unplanned downtime acts as a critical margin-killer in high-volume plastics manufacturing.
  11. Injection Molding

    What Are The Different Types Of Injection Molding Machines?

    Selecting an Injection Molding Machine goes far beyond satisfying a basic technical requirement on the factory floor.
  12. Injection Molding

    How Does An Injection Molding Machine Work?

    While asking how the equipment works seems like a basic engineering question, understanding these core mechanics remains a…
  13. Bagging

    How Empty Bottle Bagging Protects Containers During Storage And Transportation

    Empty container handling frequently operates as a hidden vulnerability in modern supply chains.
  14. Neck Cutting

    When Do Blow-Molded Bottles Need Neck Trimming After Production?

    Bottleneck production stands as a critical failure point in plastic packaging manufacturing.
  15. Neck Cutting

    Bottle Neck Trimming For Wide-Mouth Containers: Key Design Considerations

    Wide-mouth containers, typically featuring 60mm to 120mm finishes, present a unique packaging challenge.
  16. Cap Lining and Wadding

    How To Choose The Right Cap Liner For Chemical, Food, And Beverage Packaging

    A cap liner often looks like a simple disc of foam or foil. Yet, it remains one of the most disproportionately critical…
  17. Filling

    How To Reduce Bottle Scratches And Dust Contamination Before Filling

    Visually clean bottles often harbor invisible transport dust, cardboard particulates, and micro-scratches.
  18. Bagging

    Why Empty Bottle Bagging Matters For Food, Chemical, And Detergent Packaging

    Moving and storing empty plastic bottles between blow molding and the filling line creates a massive logistical vulnerability.
  19. Leak Testing

    Why Some Plastic Bottles Pass Leak Testing But Fail During Filling Or Transport

    QA managers and plant operators face a costly reality daily. Passing a standard factory leak test offers no absolute guarantee.
  20. Bagging

    Automatic Bottle Bagging For Large Containers: 3L, 5L, 10L, And 20L Applications

    Moving large containers from blow molding lines to shipping areas creates severe bottlenecks.
  21. Bagging

    Common Problems In Bottle Bagging Lines And How To Improve Stability

    A bottle bagging line is only as profitable as its most consistent shift.