Mini Load Cell HB918 for Smart Pet Feeder

As a core product of HAIBOSENSOR, the Mini Load Cell is widely used in modern intelligent devices thanks to its compact, low-profile design and high precision. It serves both traditional weighing applications—such as bathroom, kitchen, and luggage scales—and advanced fields including smart homes, fitness equipment, and environmental technology.

In smart appliances, it enables precise weight detection in rice cookers, refrigerators, night lights, coffee machines, ice makers, and beer dispensers. In fitness devices like treadmills, exercise bikes, and Pilates machines, it provides real-time force feedback for better user experience and data tracking. It also supports waste weighing and processing in smart composting and waste management systems.

Choosing a reliable, cost-effective Mini Load Cell matters. With years of expertise, HAIBOSENSOR offers a range of mini load cells with various capacities, supports customization, and provides technical guidance to ensure accurate, stable performance in integration.

Reliable Mini Load Cell HB918 For Automated Feeding Systems

We are proud to introduce the HB918-50-100kg miniature load cell—a reliable and compact sensing solution engineered for modern smart pet feeders. Its ultra-thin profile and easy installation are matched by high precision, excellent temperature stability, and consistent performance. This model has become a preferred choice in the market, ensuring accurate and dependable feeding for pets.

Ultra-Thin, Planar Form Factor

What really stands out is how super slim and compact they are. They’re built to fit into tight spaces—like under drip trays, inside blender bases, or under coffee machine platforms—so their flat design makes it easy to tuck them into sleek, modern appliances without making things bulky.

High Precision Low Capacities

These mini load cells are built to handle the usual weight ranges you’d find in kitchen and personal care gadgets—usually between 3kg and 100kg. They’re super precise, giving reliable readings that make recipe-based cooking, portion control, and automatic dosing work smoothly. And that kind of accuracy is key if you want a consistent experience and smart features that actually work.

Mini Load Cell Cost-Effective

A fundamental characteristic is their design for high-volume, cost-sensitive manufacturing. Utilizing standardized strain gauge technology and simplified mechanical structures, they achieve an optimal balance between performance, durability, and unit cost—a non-negotiable requirement for consumer-grade smart appliances.

High Accuracy & Stability

. They’re super precise, giving reliable readings that make recipe-based cooking, portion control, and automatic dosing work smoothly. And that kind of accuracy is key if you want a consistent experience and smart features that actually work.

Ease of Installation Integration

Designed for simplified and cost-effective assembly, these planar load cells feature straightforward mechanical mounting options. Typical designs include a central hollow area, a raised boss, a threaded hole for direct fastening, or peripheral screw holes (e.g., 2 or 4) for secure attachment to a flat surface. This focus on mounting convenience reduces assembly time and complexity

Robustness Environmental

Built to withstand the demanding environment of a kitchen or bathroom, they often feature stainless steel or alloy sensing elements and basic environmental sealing (e.g., conformal coating, IP-rated seals). This protects against spills, humidity, temperature fluctuations, and cleaning agents, ensuring long-term reliability.

Manufacturing of HB918 High-Precision Mini Load Cell

The HB918 Mini Load Cell embodies the skill and wisdom of seasoned craftsmen. We are obsessive about every detail of its manufacture—from its core components to its final seal. The entire process is traceable and rigorously inspected. This is more than a component; it is our commitment to precise measurement. Compact in size, it carries the full weight of our industrial craftsmanship.

Mini Load Cell Materials 65Mn Spring Steel Elastic Element

To ensure the HB918 sensor achieves exceptional accuracy, long-term stability, and fatigue resistance, its core elastic element is precision-engineered from 65Mn spring steel. This premium alloy material, characterized by high density, a high modulus of elasticity, and superior mechanical properties, provides a stable and predictable strain response foundation for the sensor.

Mini Load Cell High Precision Strain Gauges

The heart of any load cell is its strain gauge, whose performance directly dictates ultimate accuracy and long-term stability. For the HB918 mini load cell, HAIBOSENSOR insists on in-house R&D and production of this critical component. This allows us to maintain unparalleled quality control over every single step, from raw materials to final performance.

Mini Load Cell 100% Full Inspection Prior to Shipment

To ensure every single mini load cells meets our stringent factory standards, the HB918 undergoes a 100% full-item inspection prior to shipment. This is not merely a procedure, but our solemn commitment to product reliability.

All test data is recorded and traceable, guaranteeing that every HB918 delivered to your hands is a verified and qualified product.

Mini Load Cell HB918 Specifications

参数 Parameter	规格值 Specification	参数 Parameter	规格值 Specification	参数 Parameter	规格值 Specification
型号 Model Number	HB918	非线性 Linearity	≤ ±0.3% F.S.	工作温度 Operation Temp	-10°C to +40°C
额定容量 Rated Capacity	50kg, 75kg	滞后 Hysteresis	≤ ±0.3% F.S.	安全过载 Limit Overload	150% F.S.
额定输出 Rated Output	1.2±0.15 mV/V	重复性 Repeatability	≤ ±0.1% F.S.	绝缘电阻 Insulation Resistance	≥2000 MΩ
零点输出 Zero Balance	≤ ±0.5 mV/V	蠕变 Creep(3min)	≤ ±0.1% F.S.	高度 Height	2.5mm(50kg) 3.0mm(75kg)
激励电压 Excitation Voltage	3-10V DC	零点温漂 Temp. Effect on Zero	≤ ±0.3% F.S./10°C	电缆 Cable Type	3-wire (Red, Black, White)
输入电阻 Input Resistance	1000±50 Ω	灵敏度温漂 Sensitivity Temp. Effect	≤ ±0.3% F.S./10°C	安装方式 Mounting	U-Shaped Metal Structure
输出电阻 Output Resistance	1000±50 Ω

Mini Load Cells HB918 Applications

Mini Load Cell for Smart Bluetooth Body Scale

High precision and stability: It provides accurate and repeatable body weight data, which is the foundation of health monitoring.
Four-sensor solution: A smart scale typically uses four HB918 sensors placed at the four corners. It not only measures the total weight but also can preliminarily analyze the weight distribution through algorithms (in conjunction with the APP algorithm).
Low power consumption: Perfect for battery-powered Bluetooth/Wi-Fi scales, extending battery life.
Shape compatibility: The miniature design can be integrated into the modern ultra-thin and streamlined chassis design of the scale.

Mini Load Cell HB918 for Smart Cat Litter Box

This is a very classic and innovative application of this mini load cell.

Cat entry/exit detection: Determine when the cat enters and leaves by observing changes in weight.
Toilet usage duration monitoring: Record the time that the cat spends in the toilet. Abnormal duration may indicate a health issue.
Weight monitoring: Automatically records the weight of the cat each time it uses the litter box, creating a long-term health curve. This is a crucial piece of data for cat health management (such as early warning for obesity and urinary disorders).
Cat litter level monitoring: By observing the gradual decrease in the total weight of the container, it alerts the owner to add more cat litter.
The advantages of HB918:
Compact concealed installation: Can be ingeniously installed on the legs or bottom of the basin without affecting the appearance or functionality.
Sensitive to minor weight changes: Capable of clearly distinguishing the weight differences caused by the cat entering and the cat litter clumps being cleared away.
Environmental tolerance: Requires certain moisture-proof and corrosion-resistant capabilities.

Mini Load Cell HB918 for Intelligent floor toys / Intelligent farm

HAIBOSENSOR’s MINI LOAD CELLS are more widely applied in IoT weighing.

Intelligent floor toys:
Interactive pet feeder/toy: Based on the weight or manner of the pet’s touch (such as pressing, patting), different feedback (such as dispensing food, lighting up, making sounds) is triggered.
Intelligent chessboard/table game: Perceiving the placement of pieces or props to achieve an interactive game that combines virtual and real elements.
The value of HB918 from HAIBOSENSOR: It adds “perception” to toys, transforming them from passive devices to interactive intelligent ones.
Smart Farm Case:
Precision Feeding System: Monitors the weight of the feed troughs and enables automatic feeding at the right time, in the right amount, and in the right quantity.
Individual weighing of livestock: Sensors are integrated in the passage or platform to conduct stress-free weighing of the livestock and monitor their growth.
Hive weight monitoring: Real-time monitoring of the weight changes of the beehives to understand honey production, the activity status of the bee colonies, and whether feeding is necessary.
Small-scale agricultural product sorting and packaging: Used for weight sorting of fruits, poultry eggs, etc. on automated production lines.
The advantages of HB918 from HAIBOSENSOR:
Agricultural environmental adaptability: It is necessary to select models with higher protection levels to cope with dust, humidity, temperature differences, etc.
Remote monitoring: Its electrical signals can be easily connected to the IoT gateway, enabling remote collection and analysis of farm data.
Low cost and high reliability: For large-scale deployment of agricultural sensor networks, cost-effectiveness and stability are of utmost importance.

Mini Load Cell for Smart Fitness Equipment

Smart Dumbbells/Kettlebells: Monitor each lift to estimate calorie consumption.
Strength Training Machines: Accurately measure plate weight in real-time to ensure precise training load and enable networked data logging.
Smart Jump Ropes: Measure subtle force on the handles to assist with repetition counting.
Advantages of HAIBOSENSOR’s HB918 Mini Load Cell:
Dynamic Measurement: Quickly responds to weight changes, ideal for real-time performance monitoring.
High Durability: Built to withstand the repeated impacts and vibrations common in fitness equipment.
Easy Integration: Its compact size allows for straightforward embedding into handles, brackets, and connectors.

Selecting the Right Mini Load Cell for Your Application

HAIBOSENSOR offers a variety of Mini Load Cells, with different models covering distinct measurement ranges, structures, and application scenarios. For instance, common types include Full-Bridge and Half-Bridge sensors, which differ in their usage:

Half-Bridge sensors typically need to be used in a set of four to form a complete measuring bridge circuit.

Full-Bridge sensors contain a complete bridge circuit and can function independently as a single unit, though multiple units may also be installed as needed (e.g., one at each corner of a platform).

Therefore, selecting the right model requires considering factors such as measurement range, mounting method, system cost, and operating environment. If you are looking for a suitable Mini Load Cell, please feel free to contact the HAIBOSENSOR technical support team. We will recommend the most suitable model based on your specific application or even assist you in designing a complete measurement solution!