Used CNC Milling Machines for Sale — 792

CNC Mill Machines

A CNC milling machine, otherwise known as a CNC mill, removes material from the workpiece by the use of rotary cutters in accordance with a pre-determined programme. CNC stands for computer numerical control, and such a system allows for quicker and more efficient production.

How CNC Milling Machines Work And Their Uses

Numerical control working centres were first utilised in the 1940s, but it wasn't until the advent of sophisticated computers in the late 20th century that a greater degree of programming complexity was made possible. Today, milling by way of CNC mills is one of the most widespread processes to be found in a wide array of industries and is used for machining parts to precise shapes and sizes. Milling is a process of cutting that uses a rotary cutting tool which often has multiple cutting points and is moved perpendicularly to its axis. As this milling cutter moves into the workpiece, the teeth of the tool shave off swarf with each pass by shear deformation action, performing numerous small, tiny cuts. The milling process falls into two major categories. Face milling is used in cutting flat surfaces or flat-bottomed cavities into material. Peripheral milling is used to cut deep slots and threads and is used in the production of gear teeth. In the case of vertical milling machines, the spindle axis is vertically oriented. With horizontal milling machines the cutter is mounted on a horizontal arbor. A 3 axis CNC milling machine, utilising the X,Y and Z axes, is the most common, but the most advanced is a 5 axis CNC milling machine, also referred to as a multi axis machine, offering a degree of geometric complexity that can only be controlled by computers. Various configurations of CNC milling machines are available, including variants such as a box mill; a basic form of desktop CNC milling machine often used by hobbyists or in small workshops. Such a diy CNC mill can be obtained relatively inexpensively, especially in the used CNC milling machine market. A C frame mill is a larger mill used in industrial production. With a gantry mill, the milling head rides on parallel rails located at either side of the work surface.

The Advantages Of Purchasing A Used CNC Milling At Auction

There are some distinct advantages to be enjoyed when you decide to purchase a used CNC mill for sale, the major one being cost. A CNC milling machine price when the item is purchased as a new piece of equipment can be quite high. After all, these are complex and highly sought after machines. The good news is, however, that due to this value they tend to be properly maintained in accordance with the manufacturer's instructions, so when you see a cheap CNC milling machine for sale, you know that the chances are it's been well looked after. Whether you are looking for a diy CNC milling machine or a complex 5 axis CNC mill, you will be able to browse amidst a wide range of equipment at an online used CNC mill machine auction.

Popular CNC Milling Machines And The Major Manufacturers

If you are looking for CNC milling machines for sale and have your eye on the bargain filled online used industrial equipment auctions, then it's good to have a clear idea of what the most popular brands and models are. The following will give you some idea. TORMACH PCNC mills are noted for the unprecedented versatility they offer to machinists, hobbyists and engineers. The company offers a small CNC milling machine range with cast iron construction and robust electronics. Their Personal CNC 770 mill is a benchtop CNC milling machine that is widely regarded as the most versatile small mill available today. Another well regarded small CNC mill is produced by HAAS AUTOMATION. The HAAS UMC-750 Universal Machining Centre  occupies only a minimal space footprint, yet has a work envelope of 406 x 305 x 254 mm and has run speeds of up to 6,000 rpm, with enough low end torque to cut steel efficiently. The AXMINSTER CNC Technology KX1S mill is a high precision CNC milling machine that is ideal for advanced model engineering or small component production. If you see a CNC milling machine for sale on the used equipment market that has been manufactured by DMG MORI, you can rest assured that you will be investing in very high quality equipment. The popular range of multi axis hybrids made by BURKHARDT & WEBER combine milling and turning operations in one cycle and are much sought after by those looking for high grade CNC mills for sale.