30ml 50ml Airless Pump Bottle Advantages
- Dual capacity options meet the needs of different product lines, reducing the cost of developing multiple molds.
- High material utilization: Residual material is significantly lower than traditional pump bottles, reducing waste of high-priced raw materials.
- Reliable leak prevention: Static ball valve + rotary locking; both 30ml and 50ml models have passed the 25kPa internal pressure test.
- Safe materials: All components meet FDA and EU food contact standards and are BPA-free.
- Suitable for automated filling: Standard bottle neck size, piston pre-installed at the factory, no special equipment required.
30ml 50ml Airless Pump Bottle Technical Features
Piston-to-bottle wall gap ≤0.1mm (30ml) / ≤0.15mm (50ml), balancing sealing and smooth upward movement.
Pump head internal channels adapt to different viscosities; a wider channel is available for the 50ml version for use with face cream.
Stainless steel spring undergoes 48-hour salt spray testing, compatible with formulas containing acids or electrolytes.
Dispensing volume fluctuation after 100 consecutive presses ≤±5% (30ml serum) / ≤±8% (50ml face cream).
FAQ
Can you provide third-party airtightness test reports or transportation simulation test data?
We can provide ISTA 1A drop test, -10°C to 50°C temperature and humidity cycling test, and 20kPa negative pressure sealing test reports.
Do you support the use of PCR materials or biodegradable materials for the bottle body? Will this affect vacuum performance?
We support PCR, ocean recycled plastics, and PLA/PHA. Piston fit tolerances need to be re-verified, but the vacuum level can be maintained at the same standard (≤-0.08MPa).
Do the 30ml and 50ml filling equipment require adjustment? Can the same filling head be used?
Bottle neck sizes are the same, so the filling head can be used; however, the 50ml bottle body is taller, requiring adjustment of the conveyor belt height or clamping device.
What are the delivery time and packaging methods?
Standard delivery time is 30–45 days. Inner packaging is PE bags or bubble bags, and the outer carton is a five-layer corrugated cardboard box. Labeling or direct assembly is supported.
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