As an indispensable standard part in the processing and manufacturing industry, bolts are generally produced by cold upsetting machine, and different bolts must be forged with supporting facilities of cold upsetting machine, and different grinding tools can be forged. Therefore, grinding tools are particularly important for bolt production and manufacturing. As the general rivet manufacturers are always equipped with some basic bolt abrasives, most of the general bolts do not need to open the grinding tool, but there will still be a large number of non-standard bolts, which can only be produced and manufactured by the bolt company by opening a set of grinding tools

Although every time we give the grinding tool fee, we all take pains to express for the customers, but some consumers still question the double drum core pulling rivet. We charge twice. First of all, our abrasives are not opened at will. We only need to purchase them from the relevant mold manufacturers and solve the problems in various aspects of production and processing. Only when we can prepare suitable abrasives, can we make different cost of abrasives due to different specifications, models and specifications of different equipment. Generally speaking, the grinding tool cost of an extension machine is 500-800 yuan, that of a half machine is 800-1500 yuan, and that of a half machine must be 1500-3000 yuan. Therefore, it is not the second charge, but the necessary cost of manufacturing bolts for you. In general, the common standard parts such as round mouth / small flat head half space central bolt, round mouth / small flat head solid core bolt, round mouth / small flat head letter nail and round mouth / small flat head pair lock nut screw belong to basic standard parts, and do not need grinding tools, while countersunk head / flat cone head bolt, step bolt, logo bolt, slotted / hexagon / red plum blossom head pair lock nut screw and some specifications Bolts with very large grids belong to non-standard parts, while stainless steel rivets with double drum must be sharpened. Customers can appropriately adjust the bolt characteristics according to their own goods, and replace the non-standard parts with basic standard parts, which can greatly reduce the cost. If it is really necessary to open grinding tools, our company also presents the agreement for the refund of grinding tool fees. If the total production and manufacturing of a single commodity is 200000, you can here The original intention of returning the grinding tool fee is to show customers more suitable standard parts at a lower cost.