PreeKem – Microwave Digestion System


    Nguyen Thi Xuan Mai, Senior Manager, National Sales

    DKSH Technology 5th Floor, Viettel Complex, 285 Cach Mang Thang Tam Ward 12, District 10/6th Floor, Peakview Tower, 36 Hoang Cau O Cho Dua Ward 70000 Ho Chi Minh City / Dong Da District, Ha Noi Vietnam

    +84 28 3812 5806 ext 89604

    +84 8 3812 5807


Microwave Digestion System

PreeKem, a leading sample preparation equipment manufacturer in China, is primarily known for its world class microwave-based products that focus on sample preparation, serving analytical community with both organic and inorganic analytical needs.

Available Models

The PreeKem Robot Enhanced Preparation station (PREPS) is equipped with single-mode digestion system and automatic acid adding system. With patented designed (ZL 2017 1 0074237.8) structure coupled intelligent/dynamic pressure and IR temperature control system monitor the reaction pressure and temperature in real time and ensures safety. The system helps to release your hands and is able to handle the whole digestion process automatically. All you need to do is to weigh the sample.

The PreeKem Robot Enhanced Preparation station (PREPS) based on vector modeling provides high density microwave field, and the precise PID control technology ensures the stability and reproducibility of the reaction. The intuitive software design, even a completely inexperienced operator, can be familiar with the whole operation in less time. 

Key Features:

  • Release your hands, just sample weighing

You only need to weigh the sample and let PREPS to handle the rest process.

  • Precise robot arm

Precision three-dimensional robot arm can fulfill the function of adding acid, mixing, digestion, volume metering and sample transfer.

  • Excellent stability

17 years dedication in microwave digestion can create a total innovative unattended system.

  • Thorough digestion and fast cooling

Single-mode Microwave Focusing Technology Combine With Vortex Blower Cooling System Limits The Whole Process 10-15 Minutes.

  • Safety Performance

The intelligent/dynamic pressure control technology and infrared temperature monitoring system, control the real-time pressure and temperature, which provide the highest level of security.

TOPEX+ adopts advanced microwave compression technology based on the roof reflection design of vector microwave field modeling. The special design cavity can focus microwave energy to sample zone and enhance the energy efficiency. TOPEX+ offers multifunctional rotors that give you maximum flexibility according to your task.
The same microwave system can be applied in the field of food / biology / environment / industry / rock / metallurgy and steel / medicine / organic and polymer / ceramic and inorganic

TOPEX+ microwave digestion system is the impressive product made by PreeKem, it has ideally combined advanced microwave technology and use-friendly operation system, and it also owns remarkable exterior design and strong image system. This product can fully satisfy needs for digestion, extraction and synthesis, offer users more convenient and alternative solution in sample preparation area.

Key Features:

Genuine Expert in Microwave Extraction

  • High efficiency: 40 parallel samples in 30 minuets
  • More convenience: need only 2 steps to assemble a 100mL extraction vessel
  • More safety: solvent sensor secure better experience
  • Higher recovery: Magnetic stirrer ensures better results

Total Solution for Pharmaceutical Industry

  • Comply with 21CFR PART 11
  • Possess user management interface, E signature and data provenance function
  • Complete 3Q Audit Trail


  • Industrial-quality components made of 316L stainless steel and built by seamless laser welding
  • Multi-layer Dupont PFA coating efficiently protects cavity away from corrosion
  • Large cavity provide large batch of vessels(up to 40 vessels)
  • Maximum withstanding temperature: 350℃

Microwave source

  • Microwave output via two staggered magnetron;
  • Roof microwave reflection and guide technique to enhance microwave density and heating efficiency.

Door Structure

  • Auto-locking system  secures door all the way during digestion;
  • Alternative floating cushion design allows instant pressure release and resealing after;
  • Integrated emergency brake system cuts down microwave when the door is open.


  • Built-in large and high-resolution touchscreen;
  • Easy set up with stylus pen;
  • Running data, curve can be directly read;
  • History data can be saved, reviewed and exported.

Cooling System

  • Powerful corrosion resistant centrifugal fan;
  • Strong convection air duct makes cooling faster;
  • Independent air duct avoids corrosion to circuit.

Dual reaction control

  • Immersing PT sensor allows accurate temperature measurements inside the solution
  • High-precision high temperature melt pressure sensor measures the pressure in real time
  • This precise control of the temperature and pressure is essential for reproducible results and ensures safe processes every time

Full vessel real-time IR sensor

  • Immersing PT sensor allows accurate temperature measurements inside the vessel;
  • High-precision  pressure sensor measures real-time pressure;
  • working with PID control system, it could stop microwave when the pressure tends to be over limit

Contactless IR  Temperature Senor

  • Dual circle IR sensors are located at the bottom of rotor;
  • They scan  real-time temperature continuously of each vessel;
  • Based on actual status,IR sensor of inner and outer circle could auto switch to assure a better and more accurate result.

The Coolpex Smart Microwave Reaction System is an innovative microwave instrument which integrates an easy to use user-interface with an on board video camera allowing remote viewing of sensors and vessels on an external display.  The Coolpex System, designed in Germany, is ideal for synthesis applications in the high pressure range. In just a few simple steps, the user can choose a preset or customized method via the on board control pad. System data is easily monitored via the 7 inch LCD screen.

Key Features:

Enhanced Microwave Focusing

  • Focused Microwave Energy on the sample
  • Homogenous microwave field
  • High Microwave efficiency

Control and Monitoring

  • Remote observation of vessels and sensors is available through the built in video camera via an optional external monitor
  • All operations are easily performed via the control pad

Safety by Design

  • Dual Temperature and Pressure control
  • Electronic door lock
  • Cavity 316L Stainless Steel construction

The WX-6000 Microwave Digestion System is an innovative primary microwave instrument, which can simultaneous process 6 sets of 100mL vessel. It has the simple and practical operating function and satisfies variety types of sample digestion requirements. The WX-6000 Microwave Digestion System is widely applied to the area of food, pharmaceutical and environment, which is an ideal choice for small-batch of sample pretreatment.

Key Features:

  • Classic microwave source design

Adopt Panasonic inverter technology and realize non-pulse continuous microwave output, which can satisfy small-batch continuous tunable microwave output.

  • Dual temperature and pressure measurement and control system

Temperature sensor directly monitors and controls temperature change inside the reaction vessel in real time. High precision high temperature melt pressure sensor directly measures the pressure of the reaction vessel in real time and cooperates with temperature sensor to control the pressure.

  • User-friendly operating system

Sloping touch panel design with 5.6” colorful LCD screen can satisfy the requirement of intuitive and convenient operation.

  • Safety protection design

Double security door with explosion-proof and self-locking structure can resist to lateral impact.

TOPEX+ Microwave Digestion System

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