Vent Design Calculator
Calculate vent depth, width, land length, and placement for proper air evacuation in injection molds.
Inputs
mm
mm
Results
Vent Depth
0.03 mm
Vent Width10 mm
Vent Land Length1 mm
Relief Channel Depth0.63 mm
Recommended Vent Count10
Total Vent Area2 mm²
Vent Spacing50 mm
Venting Adequacy80%
How to Use This Calculator
- Select material type to auto-populate recommended vent depth for that resin.
- Enter part perimeter at the parting line (mm), nominal wall thickness (mm), and desired number of vents.
- Review recommended vent depth (mm), vent width (mm), land length, and relief channel depth.
- Compare recommended vent count to your planned count — insufficient venting causes burns and short shots.
- Space vents evenly around the parting line and always add vents at weld-line locations.
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