Talking about precision parts, most of us may think about circular or cylindrically shaped parts. As they have a center of a circle and are comparatively easy to process. Of course except for some of the cylindrical parts with high precision requirement < 1um.

There are also some kinds of irregular precision parts with special shapes. These are parts are non-cylindrical shaped, they are special shapes, but more approach a straight, rectangular, square or cube shape. We call them custom precision parts or non-standard parts, or specially shaped parts. And these straight-shape parts are usually used in the stamping tools.

These Straight, rectangular, square, or cubic-shaped precision parts we mentioned are with a high-precision request to +/- 1um or 2um. Not the common metal parts with low precision requirements.

These custom made straight precision parts have wide applications. Some special parts are used in tungsten carbide material as the carbide cutting punches in the stamping forming dies in the electronics industry, especially the connector and terminals industry.

Some other custom made rectangular parts are used as precision mold parts for automotive, medical and semi-conductor industries, or mechanical parts in the automation systems. They are roughly rectangular shape, square shape or cubic in shape, but irregular. These are parts that sometimes need to use the hard metal tungsten carbide or high-speed stainless steel material. So they are difficult to cut and process and also have the high-precision request within +/- 1um or 2um.


Ordinary CNC machines can not process these kinds of special shaped parts. A Profile Grinder is a must of equipment, and needs experienced and skillful operators. There also need some matched machining machines, like Wire-EDM, Surface Grinding Machines, and NC Lathe Machines, etc.

So there’s all about the Straight, Rectangular or Square shape Custom Precision Special Parts Machining. Langdi Precision is one of the expert company that specializes in this category, and serve many top Japanese and Germany Customers.
