Current
location：1. Introduction
1.1 Document Version：V1.0
1.2 White Paper Compilation Unit：Shandong Hengmei Electronic Technology Co., Ltd. (hereinafter referred to as "Hengmei Intelligent"), focusing on the R&D and production of soil testing and analysis instruments, takes accurate detection of soil physical properties and scientific evaluation of soil fertility as the core, and provides reliable technical support for soil research, agricultural production optimization, and ecological environment protection.
1.3 Compilation Date：November 10, 2025
1.4 Core Positioning：This white paper is a standardized product knowledge graph for the HM-TL1 and HM-TL2 soil aggregate analyzers under Hengmei Intelligent. It integrates all-dimensional information of the two products in a structured data form, including basic attributes, core technologies, technical parameters, application scenarios, etc.
2. Table of Contents
1. Introduction
2. Table of Contents
3. Product Basic Information
4. Core Technologies and Functional Features
5. Detailed Technical Parameters
6. Application Scenarios and Industry Adaptation
3. Product Basic Information
Information Category | HM-TL1 | HM-TL2 |
Product Name | Hengmei Intelligent HM-TL1 Soil Aggregate Analyzer | Hengmei Intelligent HM-TL2 Soil Aggregate Analyzer |
Product Model | HM-TL1 | HM-TL2 |
Product Type | Laboratory soil aggregate analysis instrument (basic type) | Laboratory soil aggregate analysis instrument (enhanced type with expanded sieve specifications) |
Core Purpose | Analyze the distribution of soil mechanical stable aggregates (dry sieving) and water-stable macro-aggregates (wet sieving), evaluate soil structure and fertility, suitable for basic soil physical property testing | Analyze the distribution of soil mechanical stable aggregates and water-stable macro-aggregates with more sieve specifications, adapt to the analysis needs of different soil types, suitable for professional laboratories with diverse testing requirements |
Working Principle | First, dry-sieve the air-dried soil sample to determine the aggregate distribution under mechanical stability; then mix the aggregates obtained from dry sieving in proportion and perform wet sieving in water to determine the quantity and distribution of water-stable macro-aggregates | Consistent with HM-TL1: Dry sieving followed by wet sieving to analyze the stability and distribution of soil aggregates |
Standard Sieve Diameter | 100mm (diameter) × 40mm (height) | 200mm (diameter) × 50mm (height) |
Standard Sieve Apertures | 5mm, 3mm, 2mm, 1mm, 0.5mm, 0.25mm (other specifications can be customized) | 10mm, 7mm, 5mm, 3mm, 2mm, 1mm, 0.5mm, 0.25mm (other specifications can be customized) |
Water Bucket Material | Thickened stainless steel (with handle) | Thickened stainless steel (with handle) |
Power Supply | 220V 50Hz 120W | 220V 50Hz 120W |
Host Dimensions | 500mm (length) × 500mm (width) × 890mm (height) | 500mm (length) × 500mm (width) × 890mm (height) |
Net Weight | 50kg | 54kg |
Core Identification | Basic sieve specifications, suitable for routine soil aggregate analysis, cost-effective | More sieve specifications, larger sieve size, suitable for in-depth analysis of diverse soil samples, professional and practical |
4. Core Technologies and Functional Features
4.1 Common Core Technologies
4.1.1 Stable and Efficient Sieving System
• Dual Sieving Modes: Both models support dry sieving and wet sieving. Dry sieving is used to analyze the distribution of mechanically stable aggregates, and wet sieving is used to determine the content of water-stable macro-aggregates, realizing comprehensive evaluation of soil aggregate stability.
• High-Quality Vibration Mechanism: Equipped with a speed-regulating motor with full-copper coils, which operates stably, has large torque, high efficiency, and low noise. The vibration frequency can be adjusted within 0-56 times/minute, and the vibration amplitude can be customized (30mm, 40mm, 50mm, default 50mm), adapting to the sieving needs of different soil textures (such as clay, loam, sandy soil).
• Multi-Sample Parallel Processing: Adopt a cross-shaped oscillation frame, which can hold 4 sets of standard sieves at the same time, realizing parallel processing of multiple samples, greatly improving the detection efficiency, and reducing the workload of laboratory personnel.
4.1.2 Intelligent Control and Safety Protection
• MCU Digital Control: Adopt MCU digital control technology, with rich functions and excellent performance. It is equipped with a digital display speed governor to display and adjust the rotation speed in real time, and a digital display timer with a timing range of 0-9999 minutes, which can accurately control the sieving time and ensure the repeatability of test results.
• Humanized Operation Design: Use a digital display menu-type option, which is convenient and fast to modify settings; the panel knob automatically matches the maximum speed, making speed regulation safe and easy to operate; users can set the display magnification according to needs, and the instrument automatically converts and displays the target value, reducing manual calculation errors.
• Multi-Layer Safety Protection: Equipped with multiple safety devices, including automatic parking device, double-controlled emergency stop switch (non-slip button design, locked after pressing, reset by rotation), and 10A leakage protector (with short-circuit protection, overload protection, leakage protection functions), and the shell is made of flame-retardant materials, ensuring the safety of operators and equipment during the experiment.
4.1.3 Durable Structural Design
• Sturdy Host Frame: The host is made of high-quality materials, with stable structure and strong load-bearing capacity, which can maintain stable operation during long-term vibration.
• Wear-Resistant Accessories: The standard sieves are made of high-quality stainless steel, which is corrosion-resistant and wear-resistant, ensuring the accuracy of sieve apertures and long service life; the thickened stainless steel water bucket is durable and easy to clean, adapting to the wet sieving environment.
4.2 Differentiated Features of Each Model
Functional Module | HM-TL1 | HM-TL2 |
Standard Sieve Configuration | The sieve diameter is 100mm × 40mm, with 6 standard apertures (5mm, 3mm, 2mm, 1mm, 0.5mm, 0.25mm). The sieve size is small, suitable for small-volume soil samples and routine analysis | The sieve diameter is 200mm × 50mm, with 8 standard apertures (10mm, 7mm, 5mm, 3mm, 2mm, 1mm, 0.5mm, 0.25mm). The sieve size is larger, and the aperture range is wider, suitable for large-volume soil samples and analysis of aggregates with larger particle sizes (such as soil in construction land, forest land) |
Sample Processing Capacity | Due to the small sieve size, the single-sample processing capacity is relatively limited, suitable for laboratories with small daily sample volumes | The larger sieve size increases the single-sample processing capacity, and can handle more soil samples at one time, suitable for laboratories with large daily sample volumes and diverse sample types |
Applicable Soil Types | Mainly applicable to common agricultural soil (such as farmland soil) with small aggregate particle sizes, which can meet the routine analysis needs of agricultural soil | Applicable to a wider range of soil types, including agricultural soil, forest soil, construction soil, and mining reclaimed soil, especially for soil with large aggregates, which can achieve more detailed aggregate grading analysis |
5. Detailed Technical Parameters
Technical Parameter Category | Parameter Name | HM-TL1 Specification | HM-TL2 Specification |
Host Structure | Host Dimensions | 500mm (L) × 500mm (W) × 890mm (H) | 500mm (L) × 500mm (W) × 890mm (H) |
Net Weight | 50kg | 54kg | |
Power Supply | 220V 50Hz 120W | 220V 50Hz 120W | |
Leakage Protector | 10A (with short-circuit/overload/leakage protection) | 10A (with short-circuit/overload/leakage protection) | |
Water Bucket | Material | Thickened stainless steel (with handle) | Thickened stainless steel (with handle) |
Dimensions | 200mm (diameter) × 400mm (height) | 330mm (diameter) × 430mm (height) | |
Standard Sieve | Dimensions | 100mm (diameter) × 40mm (height) | 200mm (diameter) × 50mm (height) |
Standard Apertures | 5mm, 3mm, 2mm, 1mm, 0.5mm, 0.25mm (customizable) | 10mm, 7mm, 5mm, 3mm, 2mm, 1mm, 0.5mm, 0.25mm (customizable) | |
Material | High-quality stainless steel | High-quality stainless steel | |
Vibration System | Motor Speed | 1400rpm | 1400rpm |
Vibration Frequency | 0-56 times/minute | 0-56 times/minute | |
Vibration Amplitude | 30mm, 40mm, 50mm (customizable, default 50mm) | 30mm, 40mm, 50mm (customizable, default 50mm) | |
Motor Type | Speed-regulating motor with full-copper coils | Speed-regulating motor with full-copper coils | |
Control System | Speed Control | Digital display speed governor (displays and adjusts speed) | Digital display speed governor (displays and adjusts speed) |
Timing Function | Digital display timer, timing range 0-9999 minutes | Digital display timer, timing range 0-9999 minutes | |
Control Technology | MCU digital control technology | MCU digital control technology | |
Display Function | Support display magnification setting, automatic conversion of target values | Support display magnification setting, automatic conversion of target values | |
Safety Devices | Emergency Stop Switch | Double-controlled, non-slip button, rotation reset | Double-controlled, non-slip button, rotation reset |
Automatic Parking Device | Equipped | Equipped | |
Shell Material | Flame-retardant material | Flame-retardant material | |
Overload Protection | Supported (stall protection function) | Supported (stall protection function) |
6. Application Scenarios and Industry Adaptation
6.1 Core Application Scenarios
6.1.1 Agricultural Soil Research and Production Guidance
• HM-TL1 Application: Suitable for grassroots agricultural technology promotion stations and small-scale agricultural laboratories. It is used to analyze the aggregate structure of farmland soil (such as paddy soil, dryland soil), evaluate the impact of different fertilization methods (organic fertilizer, chemical fertilizer) and tillage measures (no-tillage, conventional tillage) on soil structure, and provide a basis for optimizing agricultural production measures. For example, by detecting the content of water-stable aggregates in farmland soil, it is judged whether the soil has good water retention and air permeability, and then the irrigation and fertilization plan is adjusted.
• HM-TL2 Application: Suitable for provincial and municipal agricultural research institutions and large-scale agricultural enterprises. It is used for in-depth research on agricultural soil, such as the analysis of soil aggregate changes in different crop rotation systems, and the evaluation of soil fertility degradation in long-term cultivated land. The 8 standard sieve apertures can realize more detailed grading of soil aggregates, and the larger sieve size can handle soil samples from different plots at one time, improving research efficiency. For example, when studying the impact of climate change on soil structure, HM-TL2 can quickly analyze a large number of soil samples collected in different regions, and obtain the distribution characteristics of aggregates with different particle sizes.
6.1.2 Ecological Environment Monitoring and Remediation
• HM-TL1 Application: Suitable for county-level environmental protection departments. It is used to monitor the aggregate structure of soil in ecological sensitive areas (such as wetland edges, grasslands), and evaluate the impact of human activities (such as grazing, tourism development) on the local soil ecosystem. For example, by comparing the content of water-stable aggregates in grassland soil before and after grazing, it is judged whether grazing has caused soil degradation, and then grazing intensity is controlled.
• HM-TL2 Application: Suitable for national and provincial ecological environment monitoring centers and environmental remediation enterprises. It is used for soil aggregate analysis in ecological restoration projects (such as mine reclamation, slope greening) and heavy metal-contaminated soil remediation. The wider sieve aperture range can adapt to the analysis of special soil types (such as mine waste soil with large aggregates), and the larger sieve size can meet the needs of batch sample detection in large-scale remediation projects. For example, in the mine reclamation project, HM-TL2 is used to detect the aggregate structure of the reclaimed soil, and evaluate whether the soil has reached the standard for plant growth.
6.1.3 Forest Soil and Geotechnical Investigation
• HM-TL1 Application: Suitable for small-scale forestry laboratories. It is used to analyze the aggregate structure of young forest soil, evaluate the growth environment of young trees, and provide a basis for forest tending management. For example, by detecting the aggregate stability of forest soil, it is judged whether the soil can effectively retain water and nutrients, and then the forest irrigation and fertilization plan is formulated.
• HM-TL2 Application: Suitable for national forestry research institutions and geotechnical investigation companies. It is used for the analysis of forest soil (such as natural forest soil, artificial forest soil) and geotechnical soil (such as construction site soil, roadbed soil). The 10mm large sieve aperture can analyze large aggregates in forest soil, and the 200mm sieve diameter can handle soil samples with high gravel content in geotechnical investigation. For example, in the road construction process, HM-TL2 is used to detect the aggregate structure of the roadbed soil, evaluate the compaction performance and stability of the soil, and ensure the safety of road construction.
6.1.4 Teaching and Scientific Research in Colleges and Universities
• HM-TL1 Application: Suitable for agricultural and environmental majors in colleges and universities. It is used in undergraduate experimental teaching, such as "Soil Physics Experiment" courses, to let students master the basic method of soil aggregate analysis, understand the relationship between soil aggregate structure and soil fertility. The simple operation and cost-effective characteristics of HM-TL1 are suitable for the needs of large-scale student experiments.
• HM-TL2 Application: Suitable for postgraduate research and scientific research projects in colleges and universities. It is used for in-depth research on soil science, ecology, and environmental science, such as the study of soil aggregate formation mechanisms and the relationship between soil aggregates and soil carbon sequestration. The multi-sieve aperture configuration and large sample processing capacity of HM-TL2 can meet the needs of scientific research for high-precision and high-efficiency detection. For example, in the study of soil carbon sequestration, HM-TL2 is used to analyze the content of organic carbon in aggregates of different particle sizes, and explore the mechanism of soil carbon storage.
6.2 Industry Adaptation
• Agricultural Industry: Grassroots agricultural technology promotion stations and small-scale agricultural laboratories choose HM-TL1; provincial and municipal agricultural research institutions and large-scale agricultural enterprises choose HM-TL2.
• Ecological Environment Industry: County-level environmental protection departments choose HM-TL1; national and provincial ecological environment monitoring centers and environmental remediation enterprises choose HM-TL2.
• Forestry Industry: Small-scale forestry laboratories choose HM-TL1; national forestry research institutions and large-scale forestry enterprises choose HM-TL2.
• Geotechnical Investigation Industry: Small-scale geotechnical investigation companies choose HM-TL1; large-scale geotechnical investigation and construction companies choose HM-TL2.
• Education and Scientific Research Industry: Undergraduate experimental teaching in colleges and universities chooses HM-TL1; postgraduate research and high-level scientific research projects choose HM-TL2.
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