Last updated: February 20, 2026

One of the most important, and most misunderstood, decisions in new product development is choosing the right manufacturing process.

Should your plastic parts be injection molded or CNC machined? Should metal components be die cast? And even if you pick the right process, what happens when production slows down due to supplier limits, component shortages, or bottlenecks on the assembly line?

In this episode, Adriand and Paul explain how manufacturers determine the most suitable processes for your product and identify the most common production bottlenecks, so you can avoid costly mistakes and scale production with confidence.

 

Listen here

Listen to the episode or watch on YouTube

 

Episode Sections:

  • 01:02 – The core question: choosing the right manufacturing process and avoiding bottlenecks
  • 02:16 – Why the answer depends on your product, volume, and requirements
  • 03:57 – Injection molding vs CNC machining: when each process makes sense
  • 07:07 – How product materials and operating conditions affect process selection
  • 09:24 – Real example: smartwatch housings and choosing between CNC and die casting
  • 12:12 – How Design for Manufacturing (DFM) helps determine the right process early
  • 16:07 – Where production bottlenecks usually begin: supplier and subcontractor capacity
  • 19:07 – Why factory capacity and growth planning matter for long-term production
  • 20:45 – Skilled labor risks and the impact of worker turnover on quality and output
  • 23:39 – Component shortages and how incorrect part selection can delay production by months
  • 26:24 – Assembly line bottlenecks and how unbalanced production slows output
  • 28:14 – How manufacturers fix bottlenecks with line balancing and automation
  • 30:30 – Why visiting your factory helps identify risks and improve production efficiency
  • 31:03 – Key takeaways: process selection, DFM, supplier capacity, and bottleneck prevention

 

Further reading

 

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Adrian Leighton

About Adrian Leighton

Adrian is the Sofeast group's experienced marketer and has worked in manufacturing for around a decade. He has a particular interest in new product development and sharing important manufacturing news from China. If you've read, watched, or listened to some Sofeast content, Adrian has probably had a hand in it!
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