How to select the appropriate Electric Tapping Machine model based on workpiece size and material?

Materials and Thread Specifications that Electric Tapping Machines Can Process

1. Processable Metal Materials

According to industry standards, metal materials can be divided into six categories: P - steel, M - stainless steel, K - cast iron, N - non-ferrous metals, S - heat-resistant alloys, and H - hardened steel. Electric tapping machines, with their powerful motors and rigid structures, can achieve efficient tapping on these materials.

Commonly processed materials include ordinary carbon steel, alloy steel, copper, aluminum, and iron, meeting the needs of industries such as machinery, automotive, and aerospace.

2. Thread Specification Range

The machine model covers diameters from M2 to M48, with specific specifications as follows: M2-M16 (600W power, maximum speed 375rpm), M6-M30 (1200W power, maximum speed 200rpm), M6-M36 (1200W power, maximum speed 125rpm), M33-M48 (1200W power, maximum speed 50rpm).

This range encompasses internal threads, external threads, and various pitch combinations (coarse and fine), meeting the needs of everything from small precision parts to large structural components.

3. Influence of Material Properties on Machining

Higher hardness steels require greater torque and lower feed rates to prevent tool jamming; softer metals (such as aluminum and copper) can utilize higher speeds for rapid tapping.

By adjusting the motor power, reduction ratio, and control software parameters, the machine can smoothly switch between different materials while maintaining machining accuracy.

4. Compatible Thread Types

Supports standard metric threads (M series) and some imperial threads (UNC/UNF), and can achieve special threads (such as trapezoidal and tapered threads) by changing the tap chuck.