CNC milling machine you choose will choose when it chose the hard gauge track ..

Line rail: Usually refers to a linear motion guide produced by professional manufacturers of machine tool plant later installed and fastened to the fuselage hard rail:..... Known as one of the slide rail with the machine it through artificial scraping grinding.... rail line feed speed, high precision. The disadvantage is relatively light load table. hard track rigidity, suitable for heavy cutting. But the feed is relatively slow. precision compared to rail lines a little better. So you have a meter big shrimp in the purchase of the machine, do not blindly choose. To select the appropriate tool with respect to their products. These are just own one-sided point of view, I hope to express different views. Prices rail lines a little more expensive. Hard track and gauge are machine structural way on linear motion, as the only mobile and other table, headstock. Gauge usually refers to rolling guide, often referred to such elements as "linear guide." Linear guide itself is divided into two parts: rails and sliders. There are balls or rollers inside the inner loop slide, slide the length can be customized. It is a modular element, there is a separate product specialized manufacturers of standardized serialized. Can be installed on the machine, replace worn can be removed, wire gauge is rolling friction, speed, resistance, lubrication is also convenient, with more and more now gauge the machine tool industry, but the high-end machine with a hard track or wellhead more, domestic regular brand of machining centers is more and more hard track. Hard track rails and the bed is one of the casting, and then machined rail that basis, then by quenching, after grinding a rail. Now there is not necessarily one and the rail bed, such as inserts just rail is processed on a bed of nails hug. Hard guide rail are sliding friction, rigidity and carrying capacity. About DHXK4028 CNC milling machine; Second, the main structural features :( machine tool frames) 1. Y-axis: fixed bed table along the rail body longitudinal reciprocation. Y-axis drive: AC servo motor drive ball screw drive, drive table movement, to achieve Y-axis linear motion. Rail forms: silver Taiwan four roller type linear guide 55, each installed four sliders. 2. X-axis: milling head leavened plate along the beam guide reciprocates. X-axis drive: AC servo motor drive ball screw drive. Rail form: two 65-type silver Taiwan roller linear guides. 3. Z-axis: milling head ram plate along the rail vertical reciprocating leavened feed motion. Z-axis drive: AC inverter motor with ball screw driven through the inlet to the motion up and down the headstock, plus parallel bars and heavy rail forms: composite plastic coated slide rail. 4. Head: Head master maximum speed of 6,000 rpm, the motor torque 140NM. 5. Large: bulky machines include bed, table, column ,, beams, milling leavened plate, milling ram, milling head. Large machines are made of resin sand molding, high-strength high-quality cast iron. Large blank after heat aging roughing second tempering to eliminate stress; aging treatment sufficiently rough to eliminate processing residual stress; finishing with Free clamping manner on the CNC gantry milling machine for high-speed light cutting, so that the machine has a good rigidity and accuracy performance.