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Pipettes

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General view of an assembly line for pipettes with feeding technology

Customer Requirements

  • Assembly of 7,200 glass pipettes/hour
  • 30 product types in various lengths, diameters, and materials, each consisting of 3 individual parts
  • Flexibility for integrating future product variants
  • Short changeover times when switching between types
  • Safe feeding and assembly of delicate glass pipettes
  • Safe feeding and assembly of suction bulbs made from different materials, e.g., TPE, natural rubber, nitrile, PP, HDPE
  • GMP-compliant machine design
Close-up of an LAS assembly system for glass pipettes

The LAS-solution

Cam-controlled assembly line ratioCELL with rotary indexing table with 12 fixtures

  • 60 cycles/minute on two lanes (7,200 parts/hour)
  • Good accessibility
  • Simple operating concept
  • Changeover time < 10 minutes
  • Gentle feeding of glass pipettes in lengths from 44 to 124 mm
  • Safe feeding of suction bulbs made from different materials
  • Clean room design
  • Easy machine cleaning
  • Ergonomic working heights

Assembly Process

  • Feed cap, insert, and verify
  • Feed rubber suction bulb, assemble, and verify
  • Test assembled rubber suction bulb for leaks
  • Feed glass tube and assemble
  • Check assembled glass tubes for height and completeness
  • Output good parts into foil bags, output rejected parts in bulk
  • Empty check of fixture nest

Additional process stations can be integrated if required: Mounting tamper-evident seal, mounting child safety feature, labeling, siliconizing, etc.