Description
1. Product Overview
The FLEXSAFE STR Bioreactor Bag is a single-use, pre-sterilized cell culture vessel engineered for scalable stirred-tank bioreactor (STR) applications in upstream bioprocessing. Designed for cGMP compliance, it serves the critical function of monoclonal antibody, vaccine, and cell therapy production—eliminating costly cleaning validation and cross-contamination risks. Its strategic market advantage lies in reducing time-to-clinic by up to 40% compared to stainless steel systems, making it the definitive choice for agile, high-throughput biomanufacturing.
2. Key Specifications & Technical Characteristics
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Material Composition: Multi-layer medical-grade film (ULDPE, EVOH, and polyester outer layer); contact layer is USP Class VI and ISO 10993 compliant
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Purity Grade: Sterile by gamma irradiation (SAL 10⁻⁶); endotoxin-free (<0.5 EU/mL); animal-origin-free (AOF)
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Physical Characteristics: Transparent, flexible, single-use bag; nominal volume 50L – 2000L with integrated bottom-mounted magnetic impeller and baffles
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Packaging Options: Double-bagged in Tyvek/polyethylene; individually serialized for full traceability
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Shelf Life: 18 months from sterilization date, stored at 15–25°C in original packaging
3. Core Industrial Applications
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Primary Industries: Biopharmaceutical manufacturing (mAbs, recombinant proteins), vaccine production (viral vectors, mRNA), cell & gene therapy (CAR-T, MSC expansion)
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Operational Use Cases: Batch, fed-batch, and perfusion cell culture (CHO, HEK293, Vero cells) from R&D to clinical and commercial scales
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Performance Advantage: Patented low-shear mixing and oxygen transfer (kLa up to 35 h⁻¹) outperforms rigid single-use systems; 99.9% integrity guarantee via 100% pressure decay testing
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Cost & Efficiency Gains: Eliminates CIP/SIP cycles, reduces turnaround time by 60%, and lowers water-for-injection consumption by >90% versus reusable stainless steel
4. Competitive Advantages
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Quality Consistency: ISO 13485-certified manufacturing with batch-to-batch reproducibility; full USP <665>/<1665> extractables & leachables data available
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Supply Reliability: Dual-source supply chain (Americas and EU) with safety stock of 6 months’ average demand
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Logistics Capability: Flat-packed at ambient temperature — no cold chain required for storage or transport
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Price Competitiveness: 20–30% lower total cost of ownership (TCO) compared to leading single-use STR bags, volume-discount tiers available
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Sustainability: Recyclable outer packaging; film mass reduced 15% without sacrificing burst strength; industry-first take-back program for post-use polyolefin recycling
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Technical Support: 24/6 global bioprocess engineering support, validation documentation package, and on-site installation assistance
5. Commercial & Supply Information
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Minimum Order Quantity (MOQ): BULK 20MT (equivalent to approx. 8 pallets / 400 units of 500L bag assemblies)
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Loading Capacity: 20MT per standard 20-ft container (1,020 x 1,220 x 1,200 cm stackable configuration)







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