TDM-20 Mini X-Ray Diffractometer: Small Size, Big Insights, Redefining the Landscape of Material Analysis TDM-20 Mini X-Ray Diffractometer is a high-performance benchtop analytical instrument developed and manufactured by Dandong Tongda Technology Co., Ltd. It is primarily used for phase analysis of polycrystalline materials such as powders, solids, bulk specimens, and pastes. Utilizing the principle of X-ray diffraction, the instrument enables qualitative and quantitative analysis, crystal structure analysis, and other functions. It finds extensive applications across various fields including industry, agriculture, defense, pharmaceuticals, mineralogy, food safety, petroleum, and educational research. The TDM-20 Mini X-Ray Diffractometer breaks through the conventional 600W limit, delivering a maximum output power ranging from 1200W to 1600W (depending on configuration). Certain models are equipped with a high-frequency high-voltage generator capable of operating at up to 1600W for high-power output, while simultaneously achieving lower overall power consumption. It boasts high-precision goniometer technology with an angular repeatability of 0.0001°, a diffraction peak position measurement accuracy of 0.001°, and a full-profile diffraction angle linearity of ±0.010°.The instrument incorporates an advanced control system based on PLC (Programmable Logic Controller) technology and a modular design for precise operation. For detection, it can be equipped with either a proportional detector or a new high-performance array detector, significantly enhancing overall performance and data acquisition speed. The TDM-20 also offers highly flexible configuration options, supporting a variety of accessories such as a rotating sample stage, a 1D array detector, and a 6-position automatic sample changer. The TDM-20 Mini X-Ray Diffractometer is further characterized by its significant advantage of being compact and portable, with a small footprint and low weight. It is recognized as one of the smallest benchtop X-ray diffractometers globally, rendering it highly suitable for laboratory environments where space is limited. Furthermore, the instrument is provided with a triple interference-free isolation protection scheme. The X-ray leakage radiation is maintained at ≤ 0.12 μSv/h, ensuring compliance with the GBZ 115-2002 protection standard. Hence, the use of the TDM-20 Mini X-Ray Diffractometer is confirmed to be safe and reliable. The TDM-20 Mini X-Ray Diffractometer integrates high power, high precision, and a compact design into a single platform. It transcends the limitations of traditional, large-scale X-ray diffractometers, delivering an efficient, convenient, and reliable material analysis solution for various industries. With its advanced technical performance, comprehensive service support, and flexible operation, the TDM-20 serves as a powerful tool for laboratory-based material analysis. If you have any requirements for X-ray diffraction equipment, we welcome you to choose the products from Dandong Tongda Science and Technology Co., Ltd.

The auto sample changer adopts an imported stepper motor drive and a programmable logic controller (PLC) as the core control system. The selection of these two key components significantly ensures the precision, stability, and long-term reliability of the equipment's operation. The workflow of the auto sample changer is designed to be simple and efficient: The operator pre-loads up to six samples sequentially into designated positions of the sample changer. After setting the measurement parameters via the control system, the sample changer begins operation. Following program instructions, it automatically and accurately delivers each sample in sequence to the measurement position of the X-ray diffractometer.Once the measurement of one sample is completed, the device automatically removes it and swiftly delivers the next sample until all samples are measured. Measurement data is automatically saved, facilitating subsequent review and analysis while reducing recording errors that may arise from manual operations.The entire process requires no manual intervention, allowing the operator to free up time for other tasks and avoiding potential fatigue-related errors from prolonged operation. In addition to the basic auto sample changing function, the equipment also boasts several noteworthy features: Efficiency Enhancement: Enables unattended continuous auto measurement, making it particularly suitable for rapid screening of batch samples or sequential analysis over long periods. Data Consistency: The automated process reduces human intervention, helping to improve the repeatability and comparability of measurement data. Ease of Operation: The PLC-based control system is typically stable and user-friendly, lowering the operational threshold. Flexible Application: Primarily used in fields such as environmental protection, electronics/batteries, and other areas requiring material analysis technologies. This auto sample changer primarily serves the application field of X-ray diffraction (XRD) analysis. Dandong Tongda Science and Technology Co., Ltd. has accumulated experience in the field of analytical instruments. Its TD series of analytical instruments and non-destructive testing equipment are applied in various material research fields. This 6-position (or 12-position) auto sample changer reflects the company's approach of integrating automation technology into traditional testing equipment to enhance overall efficiency. As a functional accessory, it works in coordination with X-ray diffractometers, enhancing the automation capabilities of the host instrument.

The TD-5000 X-ray Single-Crystal Diffractometer is a high-performance instrument developed by Dandong Tongda Technology. Approved under China's National Key Scientific Instrument and Equipment Development Project, it fills a critical domestic gap in this field. Its primary function is determining the three-dimensional spatial structure and electron density distribution of crystalline substances—including inorganic compounds, organic compounds, and metal complexes—while also analyzing structures of special materials like twinned crystals, incommensurately modulated structures, and quasicrystals. It precisely measures the accurate 3D spatial structure of new crystalline compounds (including bond lengths, bond angles, configuration, conformation, and bonding electron density) and the actual arrangement of molecules within the crystal lattice. The system provides comprehensive structural information such as unit cell parameters, space group, molecular structure, intermolecular hydrogen bonding and weak interactions, and molecular configuration/conformation. It is widely used for analytical research in chemical crystallography, molecular biology, pharmacology, mineralogy, and materials science. Core Technology: A Dual Revolution in Precision and Intelligence (1) The "Mechanical Eye" with Atomic-Level Positioning Four-Circle Concentric Diffractometer: Overcomes traditional mechanical offset limitations, maintaining a constant rotational center to ensure diffraction spot coordinate errors remain below the nanometer level. PILATUS Detector: Combines single-photon counting technology with 172μm ultra-fine pixels. Achieves frame rates up to 20Hz, with noise suppression capability 3 times greater than conventional CCD detectors. (2) Fully Intelligent Closed-Loop Workflow PLC One-Touch Control: Automates the entire process from crystal positioning to data acquisition, reducing manual operation time by 90%. Cryogenic Enhancement System: Features ±0.3 K precision temperature control (100K–300K), boosting signal intensity for weakly diffracting crystals by 50% with liquid nitrogen consumption of only 1.1–2 L/h. (3) Dual Assurance: Safety and Expandability Lead Door Interlock + Leakage Protection (≤0.12 µSv/h), exceeding national safety standards. Optional Multilayer Focusing Optics (Mo/Cu Dual Target), enabling full-scale analysis from small-molecule pharmaceuticals to minerals with large unit cells. The advent of the TD-5000 X-ray Single-Crystal Diffractometer signifies more than an instrumental breakthrough—it marks the era where China's high-end scientific research equipment officially achieves autonomous precision definition. As of 2025, this system has served over 30 leading institutions across fields including chemistry, materials science, and aerospace. As crystals unveil the secrets of life under the probing gaze of domestically developed instruments, China's scientific "eye that discerns the essence of matter" now shines with brilliant clarity.