Jig machines are gravity separation devices that separate minerals based on density differences by pulsating water or air. According to their structure, jigs can be divided into plunger jigs, diaphragm jigs, air pulsating jigs, moving jigs, etc. Plunger jigs are less used nowadays.
The main types of jig machines, classified by their structure and pulsation method, include:
Diaphragm Jig
Diaphragm jig is a type of jigging machine that is widely used in gravity separation plants, whose working principle is to drive the diaphragm by eccentric connecting rod, cam lever or hydraulic device causing reciprocating motion. Based on the diaphragm installation position, diaphragm jigs can be divided into top-moving (side-moving) diaphragm jigs, down-moving conical diaphragm jigs, lateral diaphragm jigs.
Air Pulsating Jig
The air pulsating jig is also called a pneumatic jigger, which is separating minerals by air compression. According to different air chamber positions, air pulsating jigs can be divided into sieve side air chamber (side drum type) jigs and under sieve air chamber jigs. The air pulsation jig is mainly used in coal processing.
Moving Jigger
Moving screen jigs can be divided into mechanical moving jigger and manual moving jigger by the various drive systems. Manual moving sieve jigs have basically been eliminated, while mechanical moving jiggers drive the sieve plate to reciprocate through hydraulic or mechanical force, which can sort the material on the sieve plate. This moving jigger is mainly used for large-scale coal beneficiation plant or coal processing plants in cold and water-deficient areas(3 Types of Jig Machine You Need to Know, n.d.).
Jigs are essential in gravity separation, but did you know they come in various designs, each optimized for different tasks? What are the main types of jig machines, and how does their design impact their application in mineral processing? Share your insights!
Reference:
3 Types of Jig Machine You Need to Know. (n.d.). Retrieved June 3, 2025, from https://www.miningpedia.cn/gravity-separation/3-types-of-jig-machine.html#section1
