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To continuously enhance product performance and user experience, Welso has implemented a comprehensive technical upgrade to the core sealing system of its centrifuges. Effective immediately, the original welded sealing rings have been officially replaced with high-precision one-piece molded sealing rings. This upgrade represents a significant advancement in both structural design and material processing, further improving equipment safety, stability, and durability.

Upgrade Background: Addressing Common Industry Challenges

During long-term use, traditional welded sealing rings have shown several unavoidable drawbacks:

Structural Weaknesses: Welded joints create gaps that can lead to stress concentration. Under high-speed centrifugation and repeated thermal cycling, these areas are prone to cracking or failure.

Insufficient Sealing Performance: Discontinuous sealing surfaces may result in sample leakage or aerosol escape, potentially contaminating the laboratory environment and affecting experimental results.

Limited Durability: Welded areas are more susceptible to aging and chemical corrosion, resulting in a shorter service life.

Higher Maintenance Costs: Frequent replacement increases both consumable and labor costs, while also interrupting experimental continuity.

Core Upgrade: One-Piece Molding Technology for Superior Performance

This upgrade utilizes advanced compression one-piece molding technology, achieving a seamless sealing ring design that fundamentally overcomes the limitations of traditional structures:

Enhanced Structural Integrity

Welded Ring: Visible joints with stress concentration

One-Piece Ring: Seamless structure with uniform stress distribution and significantly improved stability

Significantly Improved Fracture Resistance

Welded Ring: Prone to fatigue cracking with limited lifespan

One-Piece Ring: Greatly enhanced fatigue resistance, with service life extended by more than 3 times

Optimized Sealing Performance

Welded Ring: Micro-gaps may cause liquid or gas leakage, and even cooling loss

One-Piece Ring: Continuous sealing surface reduces leakage rate to one-tenth of the original, effectively preventing contamination

Stronger Environmental and Chemical Resistance

Welded Ring: Joints are prone to aging and corrosion from acids and alkalis

One-Piece Ring: Uniform material structure offers excellent resistance to extreme temperatures and chemical corrosion, reducing aging rate by approximately 50%

Reduced Maintenance Costs

Welded Ring: Replacement typically required every ~3 months

One-Piece Ring: Replacement cycle extended to over 6 months, minimizing downtime

Improved Operational Safety

Welded Ring: Risk of breakage may lead to sample splashing or component detachment

One-Piece Ring: Stable and reliable structure eliminates potential safety hazards at the source

Upgrade Value: More Reliable, Efficient, and Safer

More Stable Experiments: Prevents leakage and contamination, ensuring data accuracy and reproducibility

Easier Maintenance: Longer service life reduces replacement frequency and maintenance costs

Safer Operation: Eliminates risks of breakage and splashing, protecting both users and equipment

Greater Durability: Reduces chamber corrosion and extends overall equipment lifespan

Effective immediately, all newly manufactured Welso centrifuges are equipped with one-piece molded sealing rings as a standard configuration. This upgrade comes at no additional cost, delivering enhanced performance and reliability to our users.

Thank you for your continued trust and support of Welso. We remain committed to innovation and continuous improvement, providing safer, more efficient, and more reliable laboratory solutions.