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Help CenterForced Circulation Crystallizer for Pharmaceutical API Crystallization, Pharmaceutical Grade 316L Stainless Steel
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Welcome to Anping County Boli Hardware Wiremesh Products Factory. Since 1998, we have been a trusted manufacturer serving global markets, including North America, Europe, Southeast Asia, and Oceania, with annual export values exceeding US$5 million. Our Forced Circulation Crystallizer for Pharmaceutical API Crystallization is crafted from pharmaceutical-grade 316L stainless steel, designed to meet the stringent purity and operational requirements of active pharmaceutical ingredient (API) production. This crystallizer offers exceptional heat transfer, uniform supersaturation control, and reliable scalability, making it an ideal choice for high-purity batch and continuous crystallization processes.
The forced circulation design ensures thorough mixing and consistent crystal growth, minimizing fouling and enhancing product quality. Every unit is built with precision engineering to deliver reproducible results in API manufacturing, from lab-scale to commercial production. Our commitment to quality is backed by decades of experience in metal fabrication and a deep understanding of pharmaceutical processing needs.
Key Features & Technical Specifications
- Pharmaceutical-Grade 316L Stainless Steel: Corrosion-resistant, low carbon content, and smooth surface finish (Ra ≤ 0.4 μm) to prevent contamination and meet cGMP standards.
- Forced Circulation System: High-efficiency external circulation pump maintains uniform temperature and concentration, reducing the risk of agglomeration or scaling.
- Customizable Jacket Design: Available with half-pipe or dimple jackets for precise heating/cooling, accommodating various crystallizer volumes and thermal profiles.
- Integrated Process Control: Optional automated control system for temperature, pressure, circulation rate, and antisolvent addition, enabling repeatable quality.
- Sanitary Design: All wetted surfaces are electropolished, with no dead zones, and easy-to-clean tri-clamp connections for CIP/SIP.
- Versatile Scale: From 50 L pilot units to 20,000 L production vessels, with customized configurations for specific APIs.
- Safety & Compliance: Designed for full vacuum and up to 0.5 MPa pressure, with mechanical seals (double option available) and explosion-proof motor options.
| Parameter | Specification |
| Material | 316L Stainless Steel (UNS S31603) |
| Surface Finish | Ra ≤ 0.4 μm (mirror polish) |
| Working Volume | 50 L – 20,000 L (custom) |
| Temperature Range | -20°C to 200°C (jacket fluid dependent) |
| Pressure Rating | Full vacuum to 0.5 MPa |
| Circulation Rate | Adjustable up to 5 m/s (pump dependent) |
| Seal Type | Single or double mechanical seal (API 682) |
| Control Options | Manual / PLC / SCADA (customizable) |
The forced circulation crystallizer excels in handling highly viscous solutions and large-scale API production where heat transfer and mixing are critical. Our design reduces the risk of localized supersaturation, producing uniform crystals with narrow size distribution—essential for downstream processing like filtration and drying. Additionally, the unit’s modular construction allows for easy integration with existing pharmaceutical lines.
With our 24 years of manufacturing experience and an annual export value of US$5 million to US$10 million, we have supplied crystallizers to over 50 countries across multiple continents. We pride ourselves on delivering customized solutions that meet the exact specifications of our clients, from small pilot plants to large-scale production facilities. Each crystallizer undergoes rigorous quality checks, including hydrostatic testing, surface finish inspection, and dimensional verification.
We are confident that our forced circulation crystallizer will enhance your API crystallization process with higher yields, better purity, and lower operational costs. Contact us today to discuss your specific requirements—our engineering team is ready to provide a tailored proposal. Partner with a manufacturer that has been a reliable supplier since 1998, serving markets from North America to Oceania, with flexible shipping options from Tianjin, Qingdao, and Shanghai ports.
Frequently Asked Questions
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What is the typical lead time for a forced circulation crystallizer?
Lead time depends on size and customization. For standard units (up to 500 L), it's approximately 45–60 days. Larger custom vessels may take 60–90 days. We can expedite based on your schedule. -
Can you provide a crystallizer with a special heating/cooling jacket?
Yes, we offer half-pipe, dimple, and conventional jackets. Our design team can optimize the jacket pattern for your specific temperature profile and heat transfer requirements. -
Is the crystallizer suitable for sterile API production?
Absolutely. The 316L stainless steel with electropolished surface finish (Ra ≤ 0.4 μm) and sanitary tri-clamp connections are designed for clean-in-place (CIP) and sterilize-in-place (SIP) procedures. -
Do you provide documentation like material certificates and weld maps?
Yes, we supply full documentation including material test reports (MTRs), pressure test certificates, weld maps, and surface finish reports. Additional documentation (e.g., Fermat, 3.1 certificates) is available upon request. -
What is the maximum pressure rating?
Standard design is full vacuum to 0.5 MPa (approx. 5 bar). For higher pressure requirements, we can customize up to 1.0 MPa, subject to ASME or CE design standards. -
Can you install a crystallization monitoring system (e.g., FBRM, PVM)?
Yes, we can integrate ports for process analytical technology (PAT) probes such as focused beam reflectance measurement (FBRM) or particle vision measurement (PVM) to monitor crystal size and shape in real time. -
How do you ensure the quality of the internal surface finish?
We use mechanical polishing followed by electropolishing, with final inspection using a profilometer and visual inspection under bright light. We guarantee Ra ≤ 0.4 μm, with options for even finer finishes. -
What is your warranty policy?
We offer a standard 12-month warranty from installation date, covering defects in materials and workmanship. Extended warranties are available for purchase.
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