
How to Choose the Correct Dip Tube Length for Cosmetic Pumps
Choose pump dip tube length from assembled bottle geometry and validate pickup, priming and tube position with the actual formula.
Cosmetic pump dip tube cutting covers how a dip tube is trimmed to its specified length and end configuration for a given pump-and-bottle assembly. The cut may be straight or angled, and the resulting edge, opening size, burrs, ovality and tube straightness can influence product pickup, priming and assembly consistency. Buyers should define the cut relative to the installed pump position rather than bottle capacity alone, then confirm that the tube does not press excessively on the bottle base or restrict the inlet. Because cutting affects both the inlet geometry and the tube’s fit inside the container, approval should use production-intent samples and the actual formula.

Choose pump dip tube length from assembled bottle geometry and validate pickup, priming and tube position with the actual formula.

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