Custom Dropper Assemblies
RTN Applicator engineers and manufactures custom dropper assemblies in Hackettstown, New Jersey. We form the pipettes, mold the bulbs and closures, and assemble in-house, so your custom specification is built under one roof instead of pieced together from overseas suppliers.
If your product needs a dropper that doesn’t exist off the shelf, bring us the drawing, the bottle, or just the problem. We’ll build the tooling.
What We Can Customize
Pipettes
- Length and diameter to fit your bottle
- Tip style: straight, bent, blunt or formed
- Glass or low-density polyethylene plastic
- Permanent calibration marks
Bulbs
- Medalist® medical-grade thermoplastic elastomer
- Firmness tuned to your liquid and dose
- Custom colors
Closures
- Thread finish matched to your bottle
- Custom colors and textures
- Child-resistant and tamper-evident options
- Logo and decoration options
Who Custom Programs Are For
Brands, contract fillers and private labelers in pharmaceutical, nutraceutical, cosmetic and specialty markets. Minimums depend on the specification. If your design is close to something we already run, the minimum may be low or there may not be one. New tooling programs are quoted on volume and scope.
How It Works
- Review: your bottle, liquid, dose and target look.
- Drawing: we engineer the assembly and send a drawing for approval.
- Tooling: molds built and maintained in-house.
- Samples: production-tool samples for fit and function on your line.
- Production: automated assembly in New Jersey, inspected to your acceptable quality level.
- Delivery: ready for pickup from Hackettstown.
Why RTN for Custom Work
- One manufacturer, not a chain of suppliers.
- Tooling built and changed in-house, not negotiated overseas.
- Made in the USA, so no import tariffs or ocean freight delays.
- Family-owned since 1993 and focused only on dropper assemblies.
- Drug Master File maintained for direct pharmaceutical customers.
Questions
Can you match an existing dropper or bottle?
Yes. Send a sample and we’ll engineer to fit.
Do you need a drawing to start?
No. A bottle, a sample or a description is enough.
Can you match our brand colors?
Yes, on bulbs and closures.
How long does a custom program take?
It depends on the tooling involved. You get a timeline with your quote.
Do you support pharmaceutical filings?
Yes. We maintain a Drug Master File and provide letters of authorization directly to pharmaceutical customers.