Hot Plate Graphite Digestion Instrument
This digestion instrument is a modular multi-functional sample pretreatment platform developed by Shenzhen Bangqi Chuangyuan Technology. It supports diversified sample pretreatment workflows for samples of different volumes and digestion difficulty levels, including acid leaching, microwave solvent extraction, evaporation & concentration, microwave-assisted oxygen combustion, UV digestion, sample drying and chemical synthesis.
1. Product Features
- Intelligent PID Digital Temperature Control
Adopts advanced PID digital intelligent temperature control technology. Optional 7-inch color touch screen. No internal connectors or mechanical switches are required for precise temperature regulation, delivering a streamlined and efficient laboratory operation experience.
- 3D Wrapped Uniform Heating for Higher Digestion Efficiency
High-purity graphite heating block features excellent thermal conductivity to deliver even heat to all samples without cold heating zones. Stereoscopic wrapped heating minimizes heat loss and greatly improves efficiency, making up for the defects of traditional flat heating plates.
- Multi-hole Batch Design, Higher Throughput Than Microwave Digester
Supports large-volume batch processing to cut total pretreatment time drastically. Standard configuration: 39 holes for up to 3900 mL liquid samples per batch. Customizable 49-hole, 64-hole or 81-hole versions available. Atmospheric digestion design ensures safer and faster operation compared to microwave digestion instruments.
- Premium Craftsmanship, Easy Maintenance & Operation
Graphite surface coated with anti-corrosion PTFE coating for easy cleaning. The working platform is made of pure PTFE with no exposed metal parts on the whole unit, safe for long-term use in strong acid and strong alkali harsh environments.
- Android Operating System, Powerful & User-Friendly Functions
Equipped with expert-level PID temperature control algorithm and unique visual monitoring interface. Operators can view full real-time digestion parameters via the touch panel, including digestion duration, holding time and current temperature. Custom digestion methods can be edited and saved for different sample types.
- Accurate Real Sample Temperature Monitoring
External temperature probe is optional to capture the actual internal temperature of samples and guarantee complete, thorough digestion results.

2. Technical Specifications
| Item | Parameter |
|---|---|
| Number of Digestion Holes | 39 holes |
| Temperature Control Range | Ambient Temp ~ 230℃ |
| Digestion Hole Diameter | 30 mm |
| Digestion Hole Depth | 60 mm |
| Temperature Control Accuracy | ±0.2℃ |
| Outer Housing Material | Engineering Plastic |
| Temperature Detection | Built-in sensor, external probe optional |
| Control Mode | Wireless Bluetooth Control |
| Heating Material | Graphite with PTFE coating |
| Multi-unit Connection | Up to 8 instruments controlled synchronously |
| Work Platform | PTFE panel |
| Overall Dimension | 40(L) × 32(W) × 15(H) cm |

3. Application Fields
- Environmental Monitoring: soil, sludge, mineral mud, ore, industrial effluent, wastewater, drinking water, etc.
- Food Inspection: milk powder, fish, vegetables, tobacco, plants, fertilizers, etc.
- Quality Control: cosmetics, non-staple foods, industrial products, metals, etc.
- Scientific Research: experimental analysis, project development, etc.
- Epidemic Prevention & Biological Testing: biological samples, human hair, etc.
- Matching Analytical Instruments: Flame AAS, AFS, ICP, ICP-MS, polarograph, mercury analyzer and all chemical wet analysis methods.
The intelligent graphite digester adopts high-purity graphite heating block with wrapped heating design for higher efficiency and superior temperature uniformity. Multi-hole batch processing greatly simplifies routine sample digestion work.
4. Manufacturer Introduction
Shenzhen Bangqi Chuangyuan Technology is a professional manufacturer of full-series sample pretreatment instruments, including constant temperature digesters, intelligent graphite digestion instruments, fully automatic digesters, microwave digesters, nitrogen blowing concentrators, electric heating plates, ceramic heating plates and fully automatic Kjeldahl nitrogen analyzers. We provide one-stop services including customized digestion schemes, experimental method guidance and professional instrument training for global laboratory customers.
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