Precision Packaging Solutions
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Product Structure
Component CompositionThe Roller Bottles are composed of a cylindrical body, roller ball, ball seat, sealing insert, and snap-fit or threaded cap. The ball rotates within the seat, held in place by the sealing insert to prevent leakage or misalignment. |
Dimensional & Functional ConsiderationsTypical capacities range from 5 ml to 50 ml, with body diameters between 15–25 mm and heights of 70–120 mm. Cylindrical geometry and material selection ensure structural stability, support automated production, and maintain consistent product flow during use. |
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• Mechanical Core •
Roller MechanismControlled Liquid TransferThe roller ball rotates inside the ball seat, transferring liquid through direct rolling contact with the skin. Ball diameter, clearance, and surface finish influence output volume and flow rate per rotation. Actuation & AlignmentThe ball seat guides the roller and prevents free spinning or misalignment. Proper tolerances ensure uniform liquid delivery, reduce waste, and maintain mechanical integrity during repeated application cycles. |
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Material Compatibility
✦ Bottle & Ball MaterialsBottle bodies are commonly made from PP, PE, or glass, while the roller ball is stainless steel or PP. Sealing inserts are made from PE or POM to prevent leakage and withstand repeated rotation. |
✦ Formulation ConsiderationsRoller bottles use materials selected for compatibility with alcohol‑based, water‑based, and oil‑based formulations. Their chemical resistance ensures long‑term structural integrity, prevents corrosion or deformation, and supports high‑volume B2B production and automated filling workflows. |
FAQ
How Many Rotations Are Needed to Fully Dispense the Product?
The number of bottom rotations required to lift the full liquid volume depends on bottle capacity, ball clearance, and liquid viscosity. This information helps B2B clients configure dosing consistency and consumer usage instructions.
What Are the Storage Temperature Limits?
Roller ball bottles maintain structural and sealing integrity under ambient storage conditions between 5°C and 45°C. Exposure beyond these ranges may affect sealing insert compression or bottle deformation.
How to Test Leak Resistance?
Leak testing can be performed by inverting the bottle and applying slight vibration or pressure. Observing liquid escape confirms sealing effectiveness of the ball seat and cap, which is critical for transport and logistics verification.
Can the Bottle Be Refilled?
Some roller ball bottle designs allow controlled refilling by removing the ball assembly and injecting liquid back into the body. This feature reduces packaging waste and supports sustainable B2B product strategies.
What Materials Resist Fragrance and Solvent Interaction?
Stainless steel balls, PP/PE inserts, and PP/PE bottles provide resistance to alcohol, essential oils, and perfume solvents. Knowing material compatibility helps OEMs avoid corrosion, stress cracking, or product contamination
Request Technical Specifications for Roller Bottles
We partner with OEM/ODM global contract manufacturers to deliver compatible material configurations, precision flow control tolerances, and stable automated workflows.
* Engineering blue-prints, customized gradient options, and testing samples are available upon verified request.
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