How to Choose an Injection Molding Machine
What to consider before buying an injection molding machine — clamping force, shot size, and tooling compatibility.
Size to your part, not your biggest hypothetical job
Clamping force and shot size need to match your actual part range — oversizing wastes energy and cycle time on small parts, undersizing means you simply can't run larger tooling at all. If your part mix varies significantly in size, this tradeoff deserves real analysis, not a single "biggest part" assumption.
Electric, hydraulic, or hybrid
Electric machines generally offer more precise, repeatable control and lower energy use; hydraulic machines remain common for very high clamping-force applications where electric options get expensive; hybrid designs aim to split the difference. The right choice depends on your specific part tolerance and tonnage needs.
Tooling compatibility
Confirm new equipment is compatible with your existing mold tooling (platen size, ejector pattern) before buying, unless you're planning to retool anyway — incompatible tooling is an expensive surprise to discover after purchase.
Price range on this site
Our current Injection Molding Machines listings range from $15,000 to $685,000 across 66 priced models, averaging an 8.9/10 overall score. See our Top 10 Injection Molding Machines ranking, and our comparison of the Engel e-victory 200 vs Arburg Allrounder 570 A for two options within $10,000 of each other.