The AELAB ZRS-6ST Dissolution Tester is used to examine the dissolving speed and degree of solid preparations such as drug tablets or capsules in specified solvents. The instrument adopts a classical modeling design and delivers high performance, stability, reliability, simple operation, and long-term durability.
ZRS-6ST is a new-generation drug dissolution tester developed and produced by our company. It features an electric lifting head with overturn capability, allowing convenient paddle and basket replacement. All working parameters can be preset and stored automatically for repeatable workflows.
The AELAB ZRS-6ST is engineered with a stainless steel paddle rod, basket rod, and basket turning components that comply with Chinese Pharmacopoeia quality requirements. The system incorporates an electric lifting mechanism enabling automatic head raise and overturn for improved access during method setup. A thermostatic water bath with integrated temperature sensor ensures stable and uniform heating across all six dissolution cups. The large LCD interface provides clear visualization of operating status and parameter settings.
The dissolution process in the ZRS-6ST operates by rotating paddles or baskets at a controlled speed between 20–200 rpm while maintaining the water bath at a precise temperature up to 45℃. The electronic sensor continuously monitors temperature across multiple bath points. Sampling periods are programmable from 1–999 minutes, with up to nine intervals available for automatic countdown. Pharmacopoeia test methods can be recalled directly, enhancing compliance and reducing setup time.
The ZRS-6ST supports digital data export and integrates with external PC software for test record management, GLP reporting, and method documentation. Operation logs, temperature data, and sampling timestamps can be stored and reviewed to support audit and compliance processes.
The ZRS-6ST represents the single-model configuration within its category. Key operational parameters are summarized below:
| Model | Specifications |
|---|---|
| ZRS-6ST | 6-cup dissolution system, 20–200 rpm, ≤±0.3℃ temperature accuracy, 1100W heating power |
The AELAB ZRS-6ST is used for pharmaceutical development, QC laboratories, academic research, and regulatory testing. It supports dissolution analysis of immediate-release tablets, capsules, coated products, and solid dosage forms. The system is suitable for formulators, manufacturers, and laboratories performing method validation and routine batch verification.
The dissolution tester meets Chinese Pharmacopoeia requirements and follows ISO- and GLP-aligned quality control standards. All components undergo rigorous calibration and stability testing to ensure consistent analytical performance.
Specifications :
| Amplitude of swing of stirring paddle | ≤0.3mm | |
| Amplitude of swing of rotation basket | ≤0.8mm | |
| Deviation of rotating rod and axle of dissolution cup | ≤1mm | |
| Speed adjustable range | 20–200 rpm | |
| Rotating speed resolution | 1 time/min | |
| Water bath temperature adjustment range | room temperature: 45℃ | |
| Temperature resolution | 0.1℃ | |
| Temperature control accuracy | ≤±0.3℃ | |
| Number of sampling periods | 9 different sampling periods can be preset. | |
| Time of sampling period | 1–999min optional for each period, 9 sampling periods can be counted down by sections. | |
| Timing error | ±0.5min | |
| Pharmacopoeia parameter calling | The instrument saves 300 dissolution test parameters in Chinese Pharmacopoeia, which can be called randomly. | |
| Large screen liquid crystal display and intelligent menu operation</strong | ||
| The head can lift and descend automatically and attaches overturn function | ||
| Electronic sensor can monitor the temperatures of various point of water bath case | ||
| Standard configuration | 6 paddles and 6 cups | |
| Electrical heating power | 1100W | |
| Amplitude of swing of stirring paddle | ≤0.3mm | |
| Amplitude of swing of rotation basket | ≤0.8mm | |
| Deviation of rotating rod and axle of dissolution cup | ≤1mm | |
| Speed adjustable range | 20–200 rpm | |
| Rotating speed resolution | 1 time/min | |
| Water bath temperature adjustment range | room temperature: 45℃ | |
| Temperature resolution | 0.1℃ | |
| Temperature control accuracy | ≤±0.3℃ | |
| Number of sampling periods | 9 different sampling periods can be preset. | |
| Time of sampling period | 1–999min optional for each period, 9 sampling periods can be counted down by sections. | |
| Timing error | ±0.5min | |
| Pharmacopoeia parameter calling | The instrument saves 300 dissolution test parameters in Chinese Pharmacopoeia, which can be called randomly. | |
| Large screen liquid crystal display and intelligent menu operation</strong | ||
| The head can lift and descend automatically and attaches overturn function | ||
| Electronic sensor can monitor the temperatures of various point of water bath case | ||
| Standard configuration | 6 paddles and 6 cups | |
| Electrical heating power | 1100W | |
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