Used lapping machines for sale (33)

Lapping machines are used in the process of surface finishing where two surfaces are rubbed together with an abrasive between them, by hand movement or using a machine. This process, known as lapping, involves a lower-speed and lower-pressure surface finishing operation. The main purpose of lapping is to achieve extremely precise surface flatness and smoothness. Lapping machines are commonly used in the production of optical lenses, mechanical seals, and various engine components where tight tolerances and smooth finishes are critical.

Types of Lapping Machines

There are several types of lapping machines, including the most commonly used benchtop models which are ideal for small components. Floor models are more suitable for larger parts. The machines can be manual, semi-automatic, or fully automatic, depending on the application and volume of work. The choice of machine affects the consistency and accuracy of the lapping process.

Key Components of Lapping Machines

Lapping machines generally consist of one or more rotating plates, conditioning rings, and an abrasive slurry dispenser. The lapping plate is typically made of a softer material like cast iron or copper, which serves as a base on which the workpieces are placed. Conditioning rings are used to hold the workpieces in place and maintain their stability during the lapping process. The abrasive slurry, usually made from a mixture of water and abrasive grit (like silicon carbide or diamond), is crucial for the cutting action.