Yes. The bright bars we typically supply are produced through polishing. If you have strict requirements for these specifications - for example, diameter tolerances of h6 or even h7, and straightness not exceeding 0.1 millimeters per meter - we will switch to a grinding process. Ground bars offer precise dimensions and high straightness, but the machining process takes longer, and the unit price will be slightly higher than that of polished bars.

Yes. Although chamfering is not included by default for standard products (since most customers perform further machining after receiving the material), we have comprehensive machining capabilities and specialized chamfering equipment to meet your requirements for chamfering both ends of the round bars. You can specify the need for chamfering when requesting a quote or placing an order, and provide the relevant dimensions or standards. We will process the bars accordingly, saving you time and costs in subsequent machining.

Our standard round bar lengths include three common specifications: 1 meter, 3 meters, and 6 meters. By default, we deliver 1-meter lengths. If you are more concerned about material costs and do not mind variations in length, we can provide random-length batches, which typically help avoid the extra waste and fees associated with cutting to fixed lengths.

Grinding is a precision machining process that uses high-hardness abrasives to grind the surface of the bar stock, removing microscopic surface defects to achieve a smooth surface and precise diameter dimensions. For applications with strict tolerance requirements (such as hydraulic piston rods and precision mechanical shafts), grinding is an essential process.