SiroSilo 
Conveyor Metal Detector
Whether you want to detect metal impurities in food, medicine, cosmetics, spices, or snacks, conveyor metal detectors can be a good helper in automatically removing unqualified products or packages from your production line.
There are various types of conveyor metal detectors on the market. How do you choose the most suitable one?
Read this guide to buy the metal detector you have longed for and improve the qualification rate of your products and packaging.
Email: info@sirosilo.com
WhatsApp: +8617312124727
Overview
An industrial metal detector conveyor is a product inspection device consisting of three parts: a belt conveyor, metal detection sensor, and automatic rejector, of which the sensor is the core component.
These machines usually appear on packaging or processing lines to detect even the smallest metal fragments, needles, and contaminants inside the product or package, and automatically remove defective products from the production line, helping manufacturers achieve compliance, minimize product recall risks, and reduce downtime.
This machine is useful for qualified product inspection in food, pharmaceutical, cosmetics, textile, and other industries.
Schematic
The following schematic clearly shows the common components of a belt metal detector:
It consists of:
- Belt Conveyor
- Detection Sensor
- Detection Tunnel
- Emergency Stop Button
- Leveling Feet
- Motor
- Photoelectric Sensor
- Power Switch
- Speed Controller
- Stack Tower Light
- Touch Screen HMI
- Universal Wheel
Working Principle
The core component of the belt metal detector is the metal detection sensor, which has three sets of coils distributed inside the sensor, namely the central transmitting coil and two symmetrical receiving coils.
The oscillator connected to the central transmitting coil emits a high-frequency variable magnetic field.
In the idle state, the induced voltages of the receiving coils on both sides cancel each other out and reach a balanced state before the magnetic field is disturbed.
Once metal impurities enter the magnetic field area, the magnetic field is disturbed, the balance is broken, and the induced voltages of the two receiving coils cannot be offset.
Part of the induced voltage is not offset, the control system amplifies & processes these partially induced voltage to generate an alarm signal (metal impurities are detected).
Then the alarm signal can drive the automatic rejection device, etc., to exclude metal impurities from the production line.
Features
| Metal detection for beverages, chemicals, electronics, food, health care products, medicines; |
| Humanized & intelligent PLC control; |
| HD 7-inch touch screen HMI; |
| Intuitive interface, easy operation; |
| One-touch self-learning, one-time pass, permanent memory; |
| User access and detection log storage and display; |
| Output statistics storage; |
| Quick product changeover, minimize setting time; |
| Real-time display of total, qualified, and defective output (maximum 1 million); |
| Up to 700 alarm log storage; |
| Built-in date calendar, log traceable; |
| Detection signal strength display; |
| 200+ recipe storage; |
| Automatic fault detection & prompt at startup; |
| Checkweighers, code printers, cartoners, FFS machine, scanners, and tube fillers combination. |
Types
According to the type of rejector, there are the following types in the Chinese market:
- Air Jet
- Double Arm
- Drop Belt
- Fin
- Flip Up Flap
- Gantry Pusher
- Push Plate
- Single Arm
- Telescopic Belt
Based on the number of sensors or probes, it can be divided into two types:
- Single Sensor (Probe)
- Dual Sensors (Probes)
Single Sensor
The tunnel metal detection sensor is the core component of a belt metal detector, as shown in the photo below:
This single sensor is suitable for detecting iron, copper, stainless steel, and other non-ferrous metals in paper boxes and plastic film packages.
However, it is not very applicable to aluminum foil bag packages.
Dual Sensors
The emergence of dual sensors belt metal detectors is for aluminum foil bag packages.
Aluminum foil bags cannot detect all types of metals through a single sensor tunnel. X-ray detectors are too expensive for many small and medium-sized enterprises to afford.
The dual-sensor metal detector introduces two sets of detection tunnels, the two sets of tunnels are arranged non-parallel front and back, so scanning foil packages at two different angles can avoid directional omissions.
Price
The following picture shows the reference price of conveyor type needle detector in Chinese market:
Manufacturers
There are several key players in this niche:
If you want to buy such a machine from China, contact us to get a quote for comparison, a right contact leads to the right result.
Email: info@sirosilo.com
WhatsApp: +8617312124727
Dynamic Checkweigher
Whether you want to accurately detect the real-time weight of 3C electronics, beverages, daily chemicals, food, health care products, medicines, etc., dynamic checkweighers are your best choice.
It helps you eliminate products that do not meet the weight standards, so that every consumer can purchase your qualified products, avoiding both increased costs due to overweight and offending consumers due to insufficient weight.
A dynamic checkweigher’s compatible weight range is 20g-40Kg.
If your product or package out of this range, contact us for customization, such as the roller conveyor checkweigher shown in the photo below:
Checkweigher Metal Detector
A checkweigher metal detector integrates both functions of dynamic weight-checking and metal detecting.
This combo system brings the following benefits into your production line:
- Simultaneous product safety & quality upgrading;
- Space saving;
- Simple use;
- Initial investment reduction;
- Easy maintenance & repair.
