Gold Detector VS Metal Detector: What are the Differences?

Gold detector and metal detector are commonly used equipment in mines. Although their names are similar, their functions are completely different. Gold detector is a kind of prospecting equipment, while metal detector is a kind of iron removal equipment. This article will take you to understand the difference between gold detector and metal detector from four aspects: application, working principle, characteristics and price. Let’s drive in.

Gold detector is mainly used in the gold exploration stage, while metal detector is used in the mineral beneficiation stage.

(1) What are Gold Detectors Used for?

Gold detectors are commonly used in prospecting for placer, gold particles and nugget and are the most popular equipment in the gold prospecting field. Gold Detector usually consists of a handheld unit with a sensor probe that can sweep the ground or other objects. If the sensor is close to the gold ore, it can be indicated by the changing tone in the earphone or the pointer moving on the indicator. Usually, gold detectors will give a distance indication. The closer the metal is, the higher the pitch in the headset, or how much the needle rotates.

(2) What are Metal Detectors Used for?

Metal detector is an electromagnetic induction device for detecting iron parts during conveying belt material (Iron removal equipment). Metal detectors are used to detect unnecessary metal impurities such as iron wire, iron nails, steel nails, screws or lead blocks, aluminum blocks, copper blocks, stainless steel, manganese steel and shovel teeth that are mixed with or fall in raw materials or products.

At the same time, it can prevent unnecessary metal impurities from damaging valuable mechanical equipment in the next process, reduce the risk of mechanical equipment failure, and improve production efficiency.

(1) What is the Working Principle of Gold Detector?

Gold detector mainly works on the principle of electromagnetic induction. When alternating current passes through the coil, it produces a rapidly changing magnetic field, which can induce eddy currents inside the metal object. The eddy current generates a magnetic field, which in turn affects the original magnetic field, causing the gold detector to sound. The investigation depth of gold detector depends greatly on the area, shape and weight of the gold mine being explored. Generally speaking, the larger the area, the greater the quantity, and the greater the investigation depth. Conversely, the smaller the area, the smaller the quantity, and the smaller the investigation depth.

(2) What is the Working Principle of Metal Detector?

Metal detectors work by using changes in the electromagnetic field caused by metal entering the sensor. The oscillator of the metal detector outputs the AC voltage of constant amplitude under normal conditions, and the DC voltage is constant after detection, so the output differential is zero. When the metal object passes through the loop, the amplitude of the oscillation decreases and then resumes. The DC voltage after detection produces a reduced fluctuation through the differential circuit, and a pulse signal will be output. This pulse is amplified to promote relay action and output contact signal to control the iron remover to take out the metal object.

(1) What is the Characteristics of Gold Detector?

• Wide detection range and simple operation

• Accurate positioning and strong resolution

• Low cost and portable

• Commonly used gold detectors are handheld and digital scanning. Digital scanning gold detector is more expensive, but its various functions are also more accurate

(2) What is the Characteristics of Metal Detector?

• Stable performance and high detection sensitivity

• Long service life and easy maintenance

• Can effectively resist electromagnetic interference, suitable for magnetic and non-magnetic mines

• Some metal detectors have sound and light alarm function (such as JTQ metal detector)

• Often used with electromagnetic iron remover, which can effectively remove magnetic impurities.

Gold detectors and metal detectors have different prices due to different products. The overall price of metal detectors is higher than that of gold detectors.

(1) What is the price of Gold Detector?

There are many types and models of gold detectors. And their prices are affected by factors such as their functions, quality, and investigation depth, generally between 100-2000 US dollars. In addition, transportation costs, maintenance and after-sales services, discounts and other factors should be taken into account. The specific price should be discussed in detail with the suppliers.

(2) What is the price of Metal Detector?

The price of metal detector is mainly affected by the applicable belt width, magnetic sensitivity and inner hole length, etc. The price is usually between 2000-6000 US dollars.

If you want to learn more about gold detectors and metal detectors, or want to purchase these equipment, you can consult our online customer service, we will contact you as soon as possible!