Yacheng / PILOTECH YC-610 Laboratory High-Efficiency Tablet Coater

Overview

The Yacheng / PILOTECH YC-610 Laboratory High-Efficiency Tablet Coater is an engineered solution for precision film coating development in pharmaceutical R&D and formulation laboratories. It operates on the principle of pan-based fluidized-bed-assisted coating: tablets or capsules are tumbled within a rotating, perforated drum under controlled negative pressure, while atomized coating suspension is delivered via an adjustable fan-spray nozzle. Concurrently, heated air—introduced through an optimized ducted inlet system—passes uniformly through the tablet bed and exits via the bottom exhaust, enabling rapid solvent evaporation and uniform film formation. This integrated thermal–aerodynamic–mechanical process ensures high reproducibility across small-scale batches (100–400 g), supporting early-stage feasibility studies, excipient screening, and regulatory preclinical batch development.

Key Features

• 7-inch color HMI touchscreen with intuitive PLC-based interface, displaying real-time parameters including inlet air temperature, drum surface temperature, fan frequency, atomization pressure, needle-cleaning cycle duration, drum rotation speed, and peristaltic pump feed rate.
• Z-pattern baffle design inside the drum extends particle trajectory and enhances tumbling complexity—critical for achieving uniform coating thickness on irregularly shaped cores without over-agglomeration.
• Adjustable fan-angle spray nozzle with integrated pneumatic needle-cleaning mechanism; fan width and cleaning frequency are programmable directly from the HMI to match drum geometry and batch size.
• Atomization pressure is continuously monitored and displayed; if pressure falls outside user-defined limits, the peristaltic pump automatically halts feed to prevent drip-induced coating defects—a built-in safeguard for process robustness.
• Dual-zone airflow optimization: both inlet and outlet employ aerodynamically shaped air ducts to maximize heat and mass transfer efficiency across the tablet bed, reducing drying time and improving coating homogeneity.
• Modular drum configuration: standard φ210 mm drum is field-replaceable with optional micro-tablet drums (e.g., φ120 mm) for sub-3 mm dosage forms, addressing challenges in mini-tablet and pediatric formulation development.
• Non-slip agitator geometry prevents core adhesion to drum walls during low-speed or high-viscosity coating cycles—minimizing attrition and ensuring consistent residence time distribution.

Sample Compatibility & Compliance

The YC-610 accommodates a broad spectrum of solid oral dosage forms: immediate-release and modified-release tablets (including sugar-coated, film-coated, enteric-coated, and sustained-release variants), gelatin and HPMC capsules, and multiparticulates such as pellets and granules. Its sealed, stainless-steel drum and HEPA-filtered air handling system meet ISO 14644-1 Class 7 cleanroom requirements for lab-scale operations. While not certified for GMP production, the system’s parameter logging, audit trail capability (via optional data export to CSV/Excel), and repeatable process execution align with ICH Q5C, Q8(R2), and USP guidelines for analytical method and process validation support. All electrical components comply with CE safety directives (EN 61000-6-2/6-4), and thermal controls adhere to IEC 60519-1 standards for industrial heating equipment.

Software & Data Management

The embedded PLC firmware supports full recipe management: users define and store multiple coating protocols—including ramp profiles for inlet temperature, stepwise changes in drum speed, timed needle-cleaning intervals, and pressure-triggered pump interlocks. All operational data—including timestamps, setpoints, and actual values—are logged internally and exportable via USB to external storage. Optional RS485/Modbus RTU connectivity enables integration into centralized lab informatics platforms (e.g., LabVantage, STARLIMS) for traceability in GLP-regulated environments. The system does not require external PC software for basic operation but supports third-party SCADA integration for enterprise-level monitoring.

Applications

• Early-phase formulation development: screening of polymer types (e.g., Eudragit®, HPMC, PVP), plasticizers, and solvents for optimal film integrity and dissolution performance.
• Enteric coating process optimization: precise control of drum temperature and drying kinetics to avoid premature polymer dissolution during gastric-phase simulation.
• Coating uniformity assessment: generation of statistically valid batches for content uniformity (USP ) and weight gain variation analysis (ICH Q5A).
• Pediatric and geriatric dosage form development: micro-tablet coating using optional small-drum configuration to maintain mechanical integrity of fragile cores.
• Stability-indicating method support: producing coated batches for accelerated stability studies (ICH Q1A–Q1E) under controlled environmental conditions.

FAQ

What is the minimum batch size supported by the YC-610?

The system achieves reliable coating uniformity starting at 100 g of tablet cores; for loads below this threshold, optional micro-drum configurations are recommended.
Can the YC-610 be validated for use in regulated environments?

While designed for R&D—not commercial manufacturing—it supports IQ/OQ documentation packages and provides sufficient data granularity for GLP-aligned process characterization studies.
Is remote monitoring or network connectivity available?

Standard configuration includes USB data export; RS485 Modbus RTU is available as an optional interface for integration into existing lab networks.
Does the system support aqueous or organic solvent-based coatings?

Yes—its stainless-steel wetted parts, explosion-proof fan motor (optional), and adjustable airflow/temperature range accommodate both water-based dispersions and ethanol/isopropanol solutions.
How is cleaning validation supported?

The drum, baffles, and spray assembly are fully disassemblable; surface finish meets Ra ≤ 0.8 µm per ASME BPE-2022, facilitating residue testing per ICH Q5D and USP .