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About UsShanghai Yazen specializes in electronic platform scales, hanging scales, truck scales, floor scales, analytical balances, explosion-proof scales, checkweighers, batching and packaging scales, LA cloud-platform smart scales, and IoT-based dynamic weighing systems. The company is among the earliest in the industry to adopt online sales platforms.
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SolutionShanghai Yazen specializes in electronic platform scales, hanging scales, truck scales, floor scales, analytical balances, explosion-proof scales, checkweighers, batching and packaging scales, LA cloud-platform smart scales, and IoT-based dynamic weighing systems. The company is among the earliest in the industry to adopt online sales platforms.
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NewsShanghai Yazen specializes in electronic platform scales, hanging scales, truck scales, floor scales, analytical balances, explosion-proof scales, checkweighers, batching and packaging scales, LA cloud-platform smart scales, and IoT-based dynamic weighing systems. The company is among the earliest in the industry to adopt online sales platforms.
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Technical servicesShanghai Yazen specializes in electronic platform scales, hanging scales, truck scales, floor scales, analytical balances, explosion-proof scales, checkweighers, batching and packaging scales, LA cloud-platform smart scales, and IoT-based dynamic weighing systems. The company is among the earliest in the industry to adopt online sales platforms.
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Contact UsShanghai Yazen specializes in electronic platform scales, hanging scales, truck scales, floor scales, analytical balances, explosion-proof scales, checkweighers, batching and packaging scales, LA cloud-platform smart scales, and IoT-based dynamic weighing systems. The company is among the earliest in the industry to adopt online sales platforms.
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DTC-30B-C Dynamic Checkweigher
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This is a dynamic weight-checking device specially designed for modern production lines that demand high precision and reliable automatic rejection. It can perform gram-level (g) precision weighing of individual products weighing up to 30 kg on high-speed conveyor lines and immediately and automatically reject nonconforming items. It is a critical piece of equipment for ensuring product quality and controlling filling quantities.
System Architecture and Key Technological Highlights
High-precision weighing module:
By employing a specially designed, high-rigidity, low-deformation weighing bridge structure along with dedicated weighing sensors, we have established a stable mechanical foundation that achieves an accuracy of ±1 g.
Equipped with automatic zero-point tracking and temperature compensation technology, it effectively resists environmental interference and ensures long-term stability.
High-speed A/D sampling control system (core):
The A/D sampling controller is the “brain” that enables high precision. It performs analog-to-digital conversion and high-speed sampling of sensor signals at frequencies ranging from thousands of times per second or even higher.
By employing advanced digital filtering algorithms, noise interference caused by belt vibrations, motor jitter, and other sources is eliminated in real time, allowing us to extract authentic and stable weight signals from massive amounts of data. This is the technical foundation for achieving dynamic high-precision measurement.
Push-rod type rejection mechanism:
Driven by high-speed solenoid valves or servo motors, the actuator features a metal or engineering-plastic pusher plate.
Upon receiving the “reject” command from the controller, the system performs a precise action within milliseconds, pushing non-conforming products laterally into the adjacent scrap bin or return line without disrupting the continuous flow of conforming products.
Hygienic stainless steel body (SUS304):
The main structural components of the machine and all parts that come into contact with the product are made of SUS304 stainless steel, meeting the stringent hygiene and anti-corrosion requirements of industries such as food, pharmaceuticals, and daily chemical products.
The surface is smooth, seamless, and easy to clean, and can withstand routine rinsing or disinfection.
User-friendly interface:
Color touch-screen display allows real-time monitoring of weight, speed, pass rate, cumulative quantity, and more.
Easily set parameters such as product specifications, upper and lower weight limits, and exclusion delays.
Typical workflow
Product feeding → Smooth entry into the weighing section → High-speed sampling and weighing by the A/D controller → Real-time processing of weight data and comparison with preset standards → If the weight exceeds the tolerance (overweight or underweight), the system calculates the precise time when the product reaches the rejector → The pusher-type rejector acts instantly, ejecting the nonconforming product → The conforming products continue to flow to the next process stage.
Core Application Scenarios
This equipment is particularly suitable for industries with stringent regulatory or internal control standards regarding net content control and packaging integrity (such as missing or insufficient items).
Food Industry: Checkweighing of bagged and boxed products for premium infant formula, pet food, frozen goods, seasonings, and confectionery.
Pharmaceuticals and Health Supplements: Inspection for missing pills or tablets in drug packaging boxes and health supplement bottles/boxes.
Chemical Industry: Packaging and weight inspection of high-value chemical formulations and dyes.
Electronics and Automotive Components: Missing Part Inspection for Small Component Kits.
The core value we bring to our customers
Exceptional precision control: An accuracy of ±1g effectively reduces cost losses caused by "overfilling" and eliminates regulatory risks stemming from "underfilling," thereby safeguarding brand reputation.
100% Full Inspection: Replacing inefficient and fatigue-prone manual sampling inspections with automated checks for every single product on the production line, ensuring complete and reliable quality data.
Production Automation and High Efficiency: With a checkweighing speed of up to 30 meters per minute and instant rejection capability, this system seamlessly integrates with high-speed production lines, significantly boosting production efficiency and automation levels.
Complies with high-standard hygiene regulations: The entire machine body is designed from SUS304 stainless steel, meeting the stringent production environment requirements of industries such as food and pharmaceuticals, and facilitating easy maintenance and upkeep.
In summary, this 30-kg belt-type weighing machine is a high-end industrial metrology device that integrates gram-level high precision, high-speed dynamic weight inspection, reliable pusher-based rejection, and hygienic design. The A/D sampling controller it employs is the key to ensuring its outstanding performance, making it an ideal choice for modern enterprises striving for high-quality and efficient production.
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Maximum weighing: 30 kg
Weighing accuracy: ±1 g (under stable operating conditions)
Conveying speed: 15–30 meters/minute (adjustable to match different production line rhythms)
Ejection method: Pusher-type ejector (fast and decisive action, suitable for medium- and light-weight box/bag products)
Control System: High-performance A/D sampling controller (core component ensuring fast and stable data acquisition)
Body material: SUS304 stainless steel (main contact areas throughout the entire body) -
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No. 2050, Dingsheng Road, Xiaokunshan Town, Songjiang District, Shanghai City, Building 5, Paimile Sheshan Zhidi
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