Choosing a lotion pump comes down to three questions: how much product should each press deliver (output), does the pump suit your formula's thickness (formula), and will it seal correctly on your bottle (fit)? Settle those three and the remaining choices, such as lock style, color and finish, fall into place. Confirm the whole system by testing it with your real formula before production.
Output: set the dosage first
Dosage is the volume a full stroke dispenses, usually measured in cc (a cubic centimeter, the same as one millilitre). The right dose depends on how much product one application needs and how many presses feel natural to a customer.
- A rich body lotion may need a larger dose so the customer is not pumping five or six times.
- A face cream or lighter lotion usually needs a smaller, controlled dose to avoid waste.
- Dosage also sets how long a bottle lasts, which feeds into your price per use.
For reference points from APG's range, the all-plastic Infinity V2 lotion pump delivers about 1.5cc per stroke, while a clip-lock all-plastic lotion pump delivers about 3.5cc. Those two alone cover quite different products.
Formula: match the pump to viscosity
A pump that works beautifully with a light lotion can struggle with a thick cream, and the reverse is also true. Thicker formulas often need a pump engineered for higher viscosity, and some benefit from a wider dip tube or a larger dose. Formulas with oils, high fragrance loads or particulates deserve particular attention during testing.
If your product is air-sensitive, you may be comparing a standard dip-tube lotion pump against an airless bottle rather than choosing between two lotion pumps. Browse APG's pump dispensers to see the breadth of formats before you narrow down.
Fit: neck finish and dip-tube length
A lotion pump must physically match your bottle. The neck finish is written as two numbers, such as 28/410: the first is a nominal neck diameter in millimetres, and the second identifies the finish series. Match the complete specification and drawing rather than diameter alone. A 28/400 and a 28/410 share a diameter but differ in thread height, so a closure made for one may not seal properly on the other. Always match both numbers against your bottle drawing.
The dip tube length and end cut should be specified from the bottle drawing and confirmed with a fitted sample. Base shape, sealing position and clearance affect the result; a tube pressed against the bottom can restrict flow. For a deeper look at threads and dosage, see APG's guide to neck finish and dosage.
Lock style, materials and finish
A few secondary choices shape the customer's first impression and shipping security:
- Lock style. Up-lock pumps twist to lock in the raised position and look clean on shelf. Clip-lock pumps use a clip to limit movement. A lock reduces accidental actuation in a bag or in transit, but on its own it is not a guarantee that any filled bottle is leak-proof; test the complete package.
- Materials. Pumps and bottles come in PP, PET, PETG, HDPE, acrylic, aluminium and glass combinations. Metal-free, all-plastic designs are available where you want to keep metal out of the product path and simplify recyclability; note that all-plastic is not the same as mono-material.
- Finish and color. Color-matching and decoration options depend on the selected component, material and finish. Colors read differently across materials and lighting, so approve a physical sample.
A quick selection checklist
- Decide the dose per stroke from your application and desired number of presses.
- Confirm the pump suits your viscosity, with samples of your real formula.
- Match the neck finish (both numbers) to your bottle and set the dip-tube length.
- Choose a lock style and over cap for your sales channel.
- Select material and finish, then approve a physical color sample.
- Run a filled-package and, if relevant, a shipping test before production.
Next step with APG
APG manufactures lotion pumps in a wide range of dosages, neck finishes, materials and finishes, including all-plastic options. Share your formula type, target dose and bottle, and the team can recommend candidates and discuss samples and testing requirements. Request a quote to match a lotion pump to your product.