A New Standard in Suspension Culture and Upstream Bioprocessing
Made in the USA | Available in 100 mL to 8000 mL | Standard & Jacketed Configurations
Engineered for the Demands of Modern Bioprocessing
Astraglass Innovations is proud to announce the launch of its new Three-Neck Spinner Flask product line, a precision-engineered borosilicate glass platform designed for suspension cell culture, microbial fermentation, and upstream bioprocessing applications.
Designed, manufactured, and quality-inspected at our facility in Vineland, New Jersey, the new Three-Neck Spinner Flasks reinforce Astraglass Innovations’ position as a trusted partner to bioprocess developers, contract manufacturers, OEM customers, and academic research labs across the globe.
This launch marks another step forward in our mission of empowering research and shaping the future, by giving scientists the dependable, scalable, and serviceable tools they need at every stage of bioprocess development.
Why Three-Neck Spinner Flasks, and Why Now?
As cell and gene therapy, monoclonal antibody production, vaccine development, and microbial fermentation programs continue to advance, the demand for reliable, autoclavable, and reproducible suspension culture vessels remains strong.
Spinner flasks continue to play an important role in upstream process development, bridging early-stage shake flask work and larger bioreactor systems. Laboratories today are looking for vessel platforms that offer dependable performance, scalability, and flexibility to support evolving process needs. The Astraglass Three-Neck Spinner Flask line was developed to provide a durable, serviceable, and customizable glass solution for upstream bioprocess development.
A Purpose-Built Design for Bioprocess Workflows
Every Astraglass Three-Neck Spinner Flask is manufactured from premium borosilicate glass for superior chemical resistance and thermal durability, built to withstand repeated autoclave cycles and aggressive cleaning protocols without compromising clarity or integrity.
The thoughtfully engineered three-neck configuration delivers:
- Two threaded side arms (GL-32 / GL-45) – for sterile sampling, gas exchange, and process access
- A large center opening — sized for standard PTFE spinner assemblies, ensuring compatibility with the equipment your team already uses
- Reliable agitation and sterile handling — supporting reproducible process performance run after run
- Full autoclavability — for confident sterilization in cell culture and bioprocessing workflows
- Compatibility with borosilicate glass stirring rods — preserving the closed-system integrity essential to sterile bioprocessing
Built to Scale- From Bench to Pilot Production
Astraglass Three-Neck Spinner Flask line carries its continuous size range from 100 mL to 8000 mL, available in both standard and jacketed configurations.
This means a single, consistent product platform can support your process from early development through pilot-scale production eliminating the variability that often comes with switching vendors or formats as you scale up.
| Volume | Standard | Jacketed |
|---|---|---|
| 100 mL | ASF-0100 | ASF-0100-J |
| 250 mL | ASF-0250 | ASF-0250-J |
| 500 mL | ASF-0500 | ASF-0500-J |
| 1000 mL | ASF-1000 | ASF-1000-J |
| 3000 mL | ASF-3000 | ASF-3000-J |
| 6000 mL | ASF-6000 | ASF-6000-J |
| 8000 mL | ASF-8000 | ASF-8000-J |
Jacketed configurations provide precise temperature control for temperature-sensitive cell lines and microbial fermentation processes eliminating the need for external heating accessories or workarounds.
Larger-volume configurations can also be supported on request for customers with specific scale-up requirements.
Designed for Where Science Is Heading
The Astraglass Three-Neck Spinner Flask is purpose-built for the most demanding upstream applications in modern bioprocessing:
- Mammalian cell culture — including suspension-adapted CHO and HEK lines
- Hybridoma culture — for monoclonal antibody development
- Microbial fermentation — for bacterial and yeast process development
- Suspension bioprocessing — for CGT, vaccine, and biologics workflows
- Microcarrier cell expansion — for adherent-to-suspension bioprocess strategies
- Process development and scale-up — bridging bench experiments to pilot production
Built on the Astraglass Promise
Every Three-Neck Spinner Flask reflects the core commitments that define Astraglass Innovations:
| Made in the USA | Designed, manufactured, and quality-inspected at our facility in Vineland, New Jersey, supporting domestic research, biomanufacturing, and OEM partners worldwide. |
| ISO 9001:2015 Quality Management System | Manufactured under our ISO 9001:2015 certified quality management system, supporting consistency, traceability, and dependable product quality. |
| Premium Borosilicate Glass | Crafted to exact specifications for chemical resistance, thermal durability, and optical clarity across repeated autoclave cycles. |
| Complete Replacement Parts Ecosystem | Components including flask bodies, caps, O-rings, gaskets, paddles, stir bars, and shaft assemblies are individually orderable, allowing customers to replace only what they need. |
| Custom Configurations Available | Customized port assemblies, modified neck configurations including additional necks where required, jacketed designs, and larger-volume formats can be developed in collaboration with our engineering team. |
A Complete Ecosystem, Not Just a Product
What sets the Astraglass Three-Neck Spinner Flask apart is the complete supporting ecosystem:
- Complete assemblies — ready to deploy out of the box
- 2-port and 3-port cap assemblies — for application flexibility
- Spinner assembly components — paddles, magnetic stir bars, and stir shaft assemblies
- Caps, O-rings, and gaskets — in GL-32 and GL-45 thread sizes
- Replacement flask bodies — for both standard and jacketed configurations
This modular, fully serviceable design philosophy means lower total cost of ownership, less downtime, and a longer working life for every flask in your facility.
“The launch of our Three-Neck Spinner Flask line reflects something we’ve believed at Astraglass Innovations from the beginning that bioprocess scientists deserve tools engineered to their reality, not generic glassware adapted to their workflows. By designing and manufacturing this line in the USA, with full replacement-part support and the scalability to grow from 100 mL to 8000 mL, we’re giving our customers a product they can build a process around and a partner they can build a program with.”
— Dr. Subu Natesan, CEO & President, Astraglass Innovations
Available Now
The Astraglass Three-Neck Spinner Flask line, including standard and jacketed configurations from 100 mL to 8000 mL, along with a full range of replacement components, is available for order today.
To request the complete product datasheet, technical specifications, custom configuration support, or volume pricing, contact our team directly:
Phone: +1 856 692 4435
Email: sales@astraglassinnov.com
Web: www.astraglassinnov.com
Facility: 3740 NW BLVD, Vineland, NJ 08360
