In the high-stakes fragrance market, the 50ml vessel is the pivot point between travel-size samples and full-size luxury. However, inconsistent neck tolerances and low-grade glass impurities can lead to catastrophic pump failure and scent degradation. At STDGLASS, our 50ml series—headlined by models XB199 and XB475—is engineered to solve these specific mechanical vulnerabilities.
We utilize advanced annealing processes and high-clarity flint glass to ensure that your formulation remains chemically stable and your filling lines operate at maximum OEE (Overall Equipment Effectiveness).
I. Technical Specifications & Dimension Stability
Our 50ml range is characterized by ultra-low iron content for optical clarity and reinforced bases for conveyor stability. Unlike generic wholesale options, our vessels maintain a strict ±0.15mm tolerance on the neck finish.
| Parameter | Model: XB199 (Cylindrical) | Model: XB475 (Square) |
| Nominal Capacity | 50ml | 50ml |
| Neck Type | 15mm Bayonet (Crimp) | 15mm Bayonet (Crimp) |
| Glass Height | 71mm | 77mm |
| Total Height (with cap) | 97mm | 100mm |
| Vessel Width/Diameter | 43mm | 41.1mm |
| Surface Clarity | Optical Grade Super Flint | Optical Grade Super Flint |
II. Mechanical Seal Integrity: Eliminating the “Pump Crisis”
The most critical interface in fragrance packaging is the 15mm bayonet neck. A mismatch of just 0.3mm between the glass rim and the actuator leads to evaporation and leakage.
- FEA 15 Standard Compatibility: Our necks are calibrated to international FEA standards, ensuring seamless integration with pumps from global leaders like Aptar, Coster, and MWV.
- Internal Geometry: Smooth internal neck walls facilitate high-vacuum filling without creating turbulence or air entrapment.
- Pressure Resilience: The crimp-neck design provides a permanent, tamper-evident seal that withstands pressure changes during international air freight.
| Feature | STDGLASS Professional Series | Standard Wholesale Glass |
| Neck Finish Precision | ±0.15mm (Laser Verified) | ±0.50mm (High Variance) |
| Glass Transparency | 99% Colorless (Low Iron) | Slight Green/Yellow Tint |
| Annealing Stress Test | Verified for 120°C Thermal Shock | Prone to Micro-Fractures |
| Seal Integrity | Hermetic Crimp Reliability | Potential for Actuator Misfit |
| Surface Purity | Inert (Scent-Potency Protected) | Risk of Chemical Reaction |
Industrial Compliance & Logistics
- Customization Options: Specialized acid frosting, high-heat silk screening, and vacuum metallization are available in-house.
- Safety Compliance: Fully compliant with REACH, RoHS, and ISO 9001:2015.
- Bulk Fulfillment: Shipped in multi-layer corrugated cartons with individual honeycomb dividers to eliminate glass-on-glass abrasion during transit.
Internal Knowledge Base
To better understand our manufacturing standards, explore our technical guides:
- [Eliminating Perfume Evaporation: The Role of Precision Neck Tolerances]
- [Perfume Bottle Sealing Engineering: Snap-On vs. Screw-Top]
- [Perfume Bottle Manufacturers: Solving Pump Leakage in 2026]
Ready to Order Samples?
Verify our glass clarity and neck precision in your own lab.
