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ZONPACK Launches ZH-D140 Drop-Type Metal Detector, Providing High-Precision Metal Contamination Detection Solution for Vertical Packaging Systems

As food safety standards become increasingly stringent and consumer demand for product purity continues to rise, metal contamination detection has become an indispensable part of food production processes. To help food companies effectively control quality risks, Hangzhou ZON Packaging Machinery Co., Ltd. (ZONPACK) officially introduces the ZH-D140 Drop-Type Metal Detector, specially designed for vertical packaging systems. With leading-edge detection technology, it provides a high-sensitivity metal contamination detection solution for free-flowing products such as granules and powders.3


Core Product Advantages

Precision Detection, Zero Dead Zone Design
The ZH-D140 adopts technology with a zero non-metal area detection head, completely eliminating detection blind spots and ensuring all passing materials are effectively inspected. Detection accuracy reaches: Fe ≥0.9mm, Non-Ferrous (NF) ≥1.2mm, Stainless Steel (SUS304) ≥1.5mm, meeting the stringent metal contamination detection requirements of the food industry.

Intelligent Self-Learning, One-Button Operation
The equipment features an intelligent self-learning function, automatically completing sensitivity parameter settings with just one product pass, eliminating the need for repeated manual adjustments. Simple and convenient operation significantly reduces reliance on operator technical expertise.

Stable and Reliable, Strong Anti-Interference Capability
Utilizing ARM+FPGA architecture design, combined with patented adaptive algorithms, X-R orthogonal decomposition and multiple filtering technology, and phase intelligent tracking technology, the device effectively eliminates external vibration and frequency converter interference, ensuring detection stability and reliability.

Seamless Integration, Automatic Rejection
The ZH-D140 seamlessly connects with packaging machine control systems. When metal contamination is detected, it automatically outputs a relay dry node signal, immediately stopping the packaging machine and rejecting unbagged products containing metal, preventing contaminated products from entering the finished product stage.

International Brand Components, Quality Assurance
Core components are sourced from internationally renowned brands: American ADI digital signal synthesizer and low-noise amplifier, ST ARM processor, ONSEMI digital demodulator, etc. Combined with hard-filled technology detection head, long-term stable operation is guaranteed.


Technical Specifications

Item Parameter
Model ZH-D140
Pipe Inner Diameter 140mm
Detection Accuracy Fe ≥0.9mm, NF ≥1.2mm, SUS304 ≥1.5mm
Parameter Setting Intelligent self-learning (automatic sensitivity setting with one learning pass)
Rejection Method Relay dry node output and alarm
Power Supply AC 100-240V single phase, 50/60Hz, 55W
Operating Environment No high-power frequency converter interference, no large vibration or moving metal interference
Body Material Stainless Steel 304

About ZONPACK

Hangzhou ZON Packaging Machinery Co., Ltd. has 15 years of experience in R&D and manufacturing of weighing and packaging systems. Our products include multihead weighers, vertical packaging machines, metal detectors, checkweighers, bucket elevators, and more, exported to over 50 countries worldwide. Committed to “Professionalism, Quality, Service,” we provide intelligent packaging and detection solutions for the food, grains, nuts, and frozen products industries.


Get Your Customized Solution

If you are looking for a high-precision metal detection solution, contact us today!

Contact:Lia
Email: lia@hzscale.com
Phone: +86 152 7920 6289

ZONPACK — Smart Detection, Protecting Every Gram’s Safety

Hangzhou ZON Packaging Machinery Co., Ltd.


*Note: This press release is based on ZONPACK ZH-D140 Drop-Type Metal Detector technical documentation. Customized solutions are available according to customer requirements.*


Post time: Feb-26-2026