Probably the most versatile type is the Highest Accuracy Gold Mineral Finder, where the material is gravity fed through the inlet of the detector. Metallic particles are detected and immediately rejected by an air-operated rejection system. Adjustable sensitivity in conjunction with short rejection time ensures minimal loss of good product.
Free-fall units are available in single-coil or balanced-coil designs with either analog or digital electronics. Free-fall units can vary in aperture size from 25 to 300 mm (1 to 12 in.). Some types possess a quick-clean rejection system that facilitates cleaning in the reject system.
Metal detectors for pneumatically conveyed materials take the type of a collar around the conveying line. Again, these detectors can be found in single- or balanced-coil design with analog or digital electronics. Positive speed control is accessible on some models to precisely time the reject-gate closing and opening in order to minimize the loss of good material.
Metal detectors for mechanical conveyors take the type of a tunnel surrounding the conveyor. This system can be combined with a number of customized rejection options for loose or packaged materials. Metal detectors for films and thin sheets use coils which are extremely sensitive at close range. They can fit directly under the web and require almost no space.
Separators for plug-flow applications are similar in operating principle to some free-fall detector. However, the plug-flow design detects metals in slow-moving or standing columns. A normal application is mounting the device beneath the hopper and simply over the throat of the processing machine. At Bunting Magnetics, we call this the “Last Chance Separator” or LCS. The LCS is constructed to aid batch feeders, blenders, and other processing equipment weighing approximately 250 lb. Tools are bolted straight to the infeed from the LCS.
Add a magnet – Place a drawer, grate, hump, liquid-trap, or other magnetic separation unit upstream to work alongside your detector. Magnetic separators will pull all ferrous metal out before it reaches the detector. This can lighten the burden of contaminants that move through the detector, increasing its efficiency while minimizing the probability of rejecting good material. Furthermore, utilization of an upstream magnet lets you adjust the detector’s sensitivity to a more impressive range to capture only non-ferrous contaminants.
The detection system is made up of a pulse/echo transducer, a water jet nozzle and an x-y table. Foreign bodies such as glass, X Ray Machine were detected by scanning the flat bottom from the beverage container. Based upon acoustic modeling, a technique for detection and identification of foreign bodies is developed and tested. A signal processing algorithm for time-frequency analysis is utilized to discriminate between beverage and contaminants from ultrasound echoes. Effective detection ability for materials such as glass, metals, and plastic, with sizes from 10 to 2.5 mm2 is demonstrated. Experiments were also performed using ultrasonic beam penetrating glass material to detect steel balls of various sizes. This is nearer to the situation of real foreign body in terms of orthogonality and cross-section to ultrasound beam.
Detection of metallic and non-metallic objects – Sometimes you need to simply know what is hidden behind a surface. For instance behind a wall or cover, or what is inside in a storage container or shipping container. Capacitive proximity sensors are perfect for level and feed monitoring. From solid material, including paper or wood, to granules or liquids, they reliably detect the status from the product through the production process and final inspection. Is there something behind that cover? Will be the filled package really full?
Exactly how much paint is still left within the tank? For capacitive proximity sensors, these are easy questions to answer. Capacitive proximity sensors from SICK are never not even close to the action. Sensing ranges between 1 and 25 mm allow them to be utilized in nearly all installation situations, which makes them extremely adaptable for an array of applications. These sensors pbgavn also remarkably immune to faults. Impurities, contamination, dust, and airborne spray particles have little effect on them, nor does electromagnetic interference. Not surprising these are installed in a wide variety of industries, including food, automotive, or perhaps in storage and conveyor systems.
Reliable, powerful, rugged. Inductive proximity sensors from SICK – An incredible number of inductive proximity sensors are currently in use in virtually all industries. They Metal Detector For Food without contact, and therefore are characterized by a lengthy service life and extreme ruggedness. Using the latest ASIC technology, SICK’s sensors provide the ultimate in precision and reliability. SICK provides the right solution to meet your preferences every time – from cylindrical or rectangular standard sensors with single, double or triple operating distance, to special sensors for explosive zones and harsh environments. Our sensors are definitely the intelligent, reliable way to implementing industry-specific and customized answers to any task involving automation.
Junhong Electronic&Technology (Dongguan) Co., Ltd is a professional manufacturer since 2005, specialized in R&D of security detection technology. We have various of products range: Walk through metal detectors, hand held metal detectors, X-ray luggage scanners, X-Ray Body Scanner, Underground Metal Detector, Industrial Metal Detector, Checkweigher, Infrared Body Temperature Detection System; Explosives Detector, Under Vehicle Surveillance Systems; etc.
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