High Speed Automatic Checkweigher with Reject System

Product Overview

High Speed Automatic Checkweigher with Reject System is an automated, high-speed industrial weighing solution integrated into production or packaging lines. Designed for fully automated packaging operations, this dynamic checkweigher continuously weighs products while in motion and automatically removes non-compliant items—whether underweight or overweight—based on pre-set weight parameters

Product Key Features

✅100% Full-Line Weight Inspection

Every single product is checked automatically—not just random samples. Eliminates the risk of underweight or overweight products reaching your customers

✅High-Speed & High-Precision Weighing

Equipped with high-precision load cell sensors and advanced DSP dynamic weighing technology, achieving accuracy up to ±0.1g at speeds of up to 20 products per minute. Detection accuracy depends on product weight, shape, and conveyor status

✅Automatic Reject System

Multiple rejection methods available—air jet, pneumatic pusher, flap type, swing arm, or diverter. Non-compliant products are swiftly and accurately removed from the production line without interrupting normal flow.

✅Intelligent Touchscreen Control

Large 10.1-inch color TFT touch display with multi-language interface (Chinese/English, customizable). User-friendly operation with intuitive menu navigation.

✅100+ Product Recipe Memory

Store up to 100 product weighing parameters for quick recipe switching between different products. USB port supports data export and parameter settings

✅Premium Stainless Steel Construction

SUS304 stainless steel frame with surface polishing. Corrosion-resistant, hygienic, and easy to clean—ideal for food and pharmaceutical environments

✅Flexible Configuration Options

Available in 2-section (Weighing + Rejection) or 3-section (Cushion + Weighing + Rejection) configurations. Customizable belt height, conveyor length, and sorting outputs (1–6 outlets)

FAQs

• Q1: What is the difference between a checkweigher and a regular scale?

  A checkweigher is an automated, in-motion weighing system that weighs products continuously on a production line and automatically rejects non-compliant items—unlike a static scale that requires manual placement of each item.

• Q2: Can the checkweigher be integrated with my existing packaging line?

  Yes. The system is designed for easy integration into fully automated packaging lines. Customizable conveyor heights, lengths, and configurations ensure seamless compatibility.

• Q3: What accuracy can I expect?

  Accuracy ranges from ±0.1g to ±1.0g, depending on product weight, shape, conveyor speed, and environmental conditions.

• Q4: How many products can it handle per minute?

  Throughput ranges from 120 to 200+ products per minute, depending on product size and line conditions

• Q5: Is the machine easy to clean?

  Yes. The SUS304 stainless steel construction with surface polishing minimizes dust accumulation. Tool-free parts dismantling allows quick and easy cleaning.

• Q6: What data outputs are available?

  The system supports USB, RS232, RS485, and Ethernet interfaces for data export, printing, and integration with plant management systems

About Us

Nanjing Sazi Machinery Technology Co., Ltd. Established on July 12, 2013, Nanjing Sazi Machinery Technology Co., Ltd. specializes in the R&D and sales of advanced packaging and coding equipment. Our core product portfolio includes Delta Robot Case Packers, Delta Robot Case Packing Workstations, Collaborative Robotic Palletizing Workstations, Fully Automatic Large Bag Packaging & Palletizing Lines, Fully Automatic Vertical Packaging Units, Robotic Case Erectors, and Automatic Carton Sealers. Additionally, we offer a comprehensive range of coding solutions, including UV, CO2, and Fiber Laser Marking Machines, as well as CIJ (Continuous Inkjet) printers.

We provide complete product identification solutions and industrial online continuous coding equipment with consumables. Our products are widely applied across various industries, including pharmaceuticals, food, cosmetics, beverages, cables, pipes, electronics, and chemicals.

Corporate Strength & Qualifications

Holding independent import and export qualifications, Sazi Machinery has established a robust service network with branches in Hefei and Shanghai, covering the East China region. The company owns 4 registered trademarks and 5 patents. We have maintained excellent corporate credit ratings, achieving an AAA principal credit rating in 2025 and an A taxpayer credit rating in both 2023 and 2024.