There are two common types of laboratory testing instruments: test sieves and tap sieve shakers. They share some similarities but also have obvious differences. Below is a detailed introduction to their distinctions.

Classification of Testing Equipment

The tap sieve shaker is a complete machine, while test sieves are accessories matched with the machine. The tap sieve shaker is the main equipment, and test sieves belong to measuring tools.

Tap sieve shakers are made of cast iron, whereas test sieves are manufactured from stainless steel.

Tap sieve shakers require electric power to operate; test sieves can be used either on a machine or manually.

Tap sieve shakers must work with matched test sieves; test sieves can be operated by hand or installed on a tap sieve shaker.

Introduction to Test Sieves and Tap Sieve Shakers

Test sieves are generally round and available in numerous sizes. Mesh count is commonly used to mark specifications, though the accurate labeling standard is "aperture size / wire diameter".

The tap sieve shaker (also called tapping standard sieve shaker or tapping vibrating sieve) is one of the widely used laboratory testing instruments, specially designed for particle size analysis with test sieves. Its structure mainly consists of a machine base, test sieve sets and a transmission mechanism. It is applicable to particle composition inspection of ordinary abrasives, grading and particle size testing of superhard materials.