What Is the Difference Between Small and Large Tonnage Injection Moulding Machines?

What Tonnage Actually Refers To

Tonnage in injection moulding refers to the clamping force a machine applies to keep the mould closed during injection, measured in tons. Smaller tonnage machines are typically used for compact, precision parts, while larger tonnage machines are needed to produce bigger components or parts requiring higher injection pressure.

Why This Distinction Matters for Manufacturing

Shreeji Plast operates machines ranging from 160 to 1400 tons, allowing the same facility to produce both small precision components and larger structural plastic parts. Selecting the correct machine tonnage for a given component ensures consistent quality while avoiding unnecessary energy consumption or production inefficiency.

  • Small tonnage machines suit compact components with tight dimensional tolerances, a point worth confirming with your manufacturer beforehand.
  • Large tonnage machines are required for bigger or thicker walled components, which can influence overall project timelines and cost.
  • Using the wrong tonnage can lead to inconsistent part quality or waste, something Shreeji Plast accounts for in every decision.
  • Machine selection also affects cycle time and overall production cost, which ultimately supports better outcomes for OEM partners.
  • A wide tonnage range allows one manufacturer to serve varied component needs, a factor that should not be overlooked during evaluation.

Conclusion

Matching component size to the correct machine tonnage is a key manufacturing decision. Shreeji Plast's 160 to 1400 ton range supports a wide variety of OEM parts.