Microwave Digestion Instrument

I. Product Introduction

The Microwave Digestion System is a high-throughput, intelligent sample preparation instrument designed for modern laboratories. It combines a high-performance industrial-grade magnetron with intelligent temperature control and a comprehensive multi-layer safety protection system, ensuring a safe and controllable digestion process. High-throughput sample handling, together with 360° unidirectional continuous rotation technology, guarantees uniformity and repeatability of every sample within a batch. The control system adopts non-contact infrared precision temperature measurement; a large touchscreen lets operators monitor the entire temperature curve intuitively, making operation simple and intelligent.

The instrument body uses a corrosion-resistant cavity and premium PEEK/PTFE digestion vessel assemblies, making the structure robust and durable. With reliable core performance, all-round safety protection, efficient batch processing capability and friendly intelligent operation, it is an ideal choice for efficient and safe sample digestion in food, environmental, geological and metallurgical industries.

II. Working Principle

The Microwave Digestion System works on the principle of combined microwave volumetric heating and high-pressure chemical reaction. Microwaves emitted by the core magnetron are absorbed by polar molecules (such as water and acid) inside the digestion vessel, causing high-speed molecular oscillation and friction that heats the sample rapidly and uniformly from the inside, greatly shortening preparation time.

To ensure precise and controllable processing, the instrument adopts non-contact infrared temperature sensing technology to monitor temperature changes in every reaction vessel throughout the process. The unique 360° unidirectional continuous rotation design guarantees even heating of all samples and excellent consistency of results. Multiple built-in safety mechanisms immediately stop microwave emission and activate pressure-relief protection once abnormal temperature or pressure is detected, achieving a combination of high efficiency and safety.

III. Features

1. Stable and reliable core performance with durable design

(1) High-performance magnetron system: an industrial-grade high-performance magnetron with intelligent power regulation delivers 0~1800 W non-pulsed continuous variable-frequency output. The system structure is simple, runs stably and reliably, achieves high energy conversion efficiency and offers more advantageous maintenance cost.

(2) Premium digestion vessel assembly: the inner vessel is made of highly corrosion-resistant polytetrafluoroethylene (PTFE), and the outer sleeve uses ultra-high-strength PEEK aerospace engineering plastic, providing a safe working pressure of up to 1500 psi (about 10 MPa) with outstanding durability.

(3) Robust corrosion-resistant cavity: a premium stainless steel microwave cavity with a multi-layer Teflon anti-corrosion coating resists acid vapor corrosion, is easy to clean and ensures long service life.

2. All-round active intelligent safety protection system

(1) Dual pressure relief: each digestion vessel is equipped with an independent pressure relief device, and the main unit features automatic overpressure discharge, forming double protection at vessel and system level with high safety redundancy.

(2) Self-locking buffered explosion-proof door: a high-strength self-locking buffered door effectively releases impact under abnormal pressure; combined with electromagnetic induction interlock, it ensures the safety of both personnel and equipment.

(3) Real-time monitoring and automatic shutdown on abnormality: the temperature control system monitors the whole process and automatically cuts off microwaves when parameters exceed limits, enabling active safety intervention.

3. High-throughput, high-consistency efficient processing platform

(1) High-throughput design: up to 24 positions per batch significantly improve the efficiency of large-volume sample processing in the laboratory.

(2) 360° unidirectional continuous rotation: the turntable rotates continuously in one direction (not back and forth), ensuring an absolutely uniform microwave environment at every sample position and fundamentally guaranteeing excellent repeatability and parallelism within a batch.

(3) Efficient rapid cooling: a built-in high-power corrosion-resistant exhaust system enables rapid air cooling after digestion, accelerating the cooling process and shortening the experimental cycle.

4. Precise intelligent control and operating system

(1) Intelligent non-contact temperature control: high-precision non-contact infrared temperature measurement directly monitors the true temperature inside the vessel with accuracy of ±0.5 °C, free of contamination and consumables, providing authentic and reliable data.

(2) Flexible method library: supports user-defined digestion methods, easily handling standardized or customized preparation workflows for diverse samples.

(3) Intuitive human-machine interaction: a large color touchscreen with graphical interface displays vessel temperature and pressure curves in real time, making the operation intuitive and the process clear at a glance.

(4) Multi-language support: an optional Android version enables multi-language customization.

IV. Technical Parameters

1. Main unit specifications

2. Control system specifications

3. Digestion device specifications