Containment Isolator for Crushing and Weighing: The Ultimate GMP Solution for API Production

As the pharmaceutical industry rapidly advances toward high-potency active pharmaceutical ingredients (APIs), antibody-drug conjugates (ADCs), peptide drugs, and cell therapies, occupational exposure protection has taken center stage. Maintaining stringent containment at OEB Level 5 and above is no longer just a regulatory preference—it is a mandatory standard for Environmental, Health, and Safety (EHS) management and successful GMP inspections.

Among all production steps, crushing and weighing are the highest-risk nodes for dust generation and operator exposure. During the crushing process, the input of mechanical energy leads to particle micronization and aerosolization, causing fine drug dust to remain suspended in the air for extended periods and spread over wide areas. Meanwhile, open-handle operations during weighing and dispensing exponentially increase the risk of dust exposure. Traditional workflows rely on standalone equipment, requiring multiple material transfers that elevate cross-contamination risks and threaten operator health.

Tailin’s Containment Isolator for Crushing and Weighing solves these challenges by seamlessly integrating an industrial hammer mill and an ultra-precise electronic balance into a single, closed negative-pressure system.

Key Engineering Features & Advantages

1. Unified Workflow: Eliminating Intermediate Transfer Risks

Traditional setups separate particle size reduction from dispensing, which forces frequent manual handling and lid openings. Tailin’s isolator re-engineers this workflow:

• Back-Mounted Hammer Mill: The heavy-duty mill is integrated at the rear of the chamber, with its feed inlet extending into the ergonomic workspace and its discharge port pointing directly at the weighing zone.
• Zero-Transfer Dispensing: Operators feed, crush, and weigh materials entirely within the closed isolator environment, completely eradicating fugitive dust emissions.
• Spacious Interior: The core operation chamber measures 1914mm×750mm×800mm, ensuring comfortable ergonomics during extended batch runs.

2. High-Yield Hammer Milling with Precise Particle Control

Integrated into the rear of the chamber, the heavy-duty hammer mill impacts, shears, and frictionally grinds materials via high-speed rotating blade-hammer assemblies, achieving flexible particle size control through replaceable screens. Common screen apertures range from 0.5mm to 3.0mm, corresponding to output particle sizes of 20 to 200 mesh, accommodating various material types such as lyophilized blocks, crystalline agglomerates, plant extracts, and fibrous APIs.

Batch processing capacities cover 100g to 10kg, balancing R&D pilot tests with commercial batch production. Thanks to the fully enclosed crushing and pneumatic conveying system, coupled with the effective retention of H14 HEPA filters, the system yield is ≥ 95%—meaning significant economic savings for high-value APIs.

Material Compatibility Table for Hammer Milling

3. Dynamic-Environment High-Precision Weighing

Weighing inside an active isolator is often disrupted by vibrations, airflow turbulence, and pressure shifts. Tailin overcomes these hurdles through advanced engineering:

• Uncompromised Accuracy: Maintains precision between ±0.1g and ±0.01g even while the pulverizer and blowers run continuously. For applications requiring higher precision, Tailin can provide higher-tier balance integration solutions.
• Isolated Base: The balance sits on an independent anti-vibration table physically isolated from the mill, fans, and outer frame.
• CFD-Optimized Airflow: Computational Fluid Dynamics (CFD) modeling prevents supply air or exhaust drafts from skewing scale readings.
• Data Integrity & Compliance: Integrated PLCs collect real-time temperature, humidity, and differential pressure data, utilizing environmental compensation algorithms to log time-stamped batch data with user IDs via Ethernet or RS232, fully compliant with FDA 21 CFR Part 11.

4. OEB Level 5 Containment & Structural Integrity

Designed to strict OEB Level 5 standards (OEL ＜1μg/m3), the equipment successfully passes rigorous containment leak tests, with leakage rates superior to ISO 10648-2 standard requirements.

• Robust Chamber Design: Chamber doors utilize 15mm thick tempered glass, offering high transparency and an impact resistance 3 to 5 times that of regular glass.
• Inflatable Sealing Technology: All doors feature inflatable seals that automatically compensate for gaps, ensure uniform sealing pressure, and prevent performance degradation over long-term use.
• Ergonomic Glove Systems: 8Y integrated glove systems achieve full physical isolation between operators and active compounds, with glove materials available in EPDM, Neoprene, or Hypalon to suit different solvent-resistance requirements.
• Real-Time Safety Monitoring: Online differential pressure monitoring systems track negative pressure in real-time, automatically triggering alarms and interlocking controls during abnormalities to guarantee stable lifecycle containment.

5. Intelligent Control & Data Integrity for Compliant Pharmaceutical Production

• Intuitive HMI & PLC Control: Driven by a Siemens touch screen and S7 series PLC control system, the equipment features a clear graphical interface for streamlined operator control.
• Tool-Free HEPA Filtration: H14 PUSH-PUSH HEPA filters deliver ≥ 99.995% retention efficiency for 0.1~0.3μm particles and allow for safe replacement and integrity testing without tools.
• Seamless MES Integration: Optional Ethernet communication modules supporting OPC UA and Modbus TCP protocols enable real-time uploading of runtime metrics, alarm logs, and batch production records to MES systems, establishing a robust foundation for smart factories and full-lifecycle traceability.

6. Tailored Configurations for Every Application

Recognizing that no two pharmaceutical processes are identical, Tailin offers flexible configuration pathways: To address diverse production layouts and application scenarios—such as high-potency API crushing and weighing, sterile API processing, allergenic drug production, lyophilized block processing, and high-value small-batch R&D— TaiIin can derived multiple configuration combinations:

• Standard Model: Designed specifically for routine high-potency API crushing and weighing.
• Drying-Integrated Model: Features an added drying module tailored for post-wet-granulation workflows.
• Simplified Configuration: Dedicated isolator focused primarily on high-precision weighing and auxiliary particle size reduction.

No matter the specific layout, Tailin provides fully tailored engineering designs to match the unique process specifications, achieving a seamless, fully enclosed workflow from drying and crushing to dispensing.

Backed by comprehensive full-lifecycle validation support—from Design Qualification (DQ) and Factory Acceptance Testing (FAT) to Site Acceptance Testing (SAT) and IQ/OQ/PQ protocols—TAILIN provides a bulletproof containment ecosystem for your most hazardous compounds.

For more information or to explore partnership opportunities, please visit our website or contact us at phone: +86 571 8658 9087, email: marketing@tailingood.com. Stay connected with Tailin through our social media channels on Facebook, YouTube, LinkedIn and Instagram to witness our ongoing journey toward excellence and innovation.