What causes uneven stone slab output?

The working environment of stone saws is relatively harsh. Its main purpose is to cut marble and granite, and it is an important processing tool used in the stone industry. Shandong Juxing Stone Machinery Co., Ltd. (mainly produces stone cutting machines, stone polishing machines, rope saws and five-axis cutting machines) summarizes the following based on many years of experience in stone saws:

In fact, there are many factors that determine whether the stone output is flat, and many of them are caused by details that you have not paid attention to during the cutting process. So today, these details will be summarized. Have you ever paid attention to these details?

1) Saw blade idling: Especially when a new base is used for the first time, it needs to be idling for about 10-20 minutes. In the hot summer season, it needs to be idling with water. The purpose is to further eliminate the impact of welding the blade head on the base and enhance the memory of the saw blade to maintain its internal quality under high-speed rotation.
2) Saw blade idling: When a new base is used for the first time, it needs to be idling for about 10-20 minutes. In the hot summer season, it needs to be idling with water. The purpose is to further eliminate the impact of welding the blade head on the base and enhance the memory of the saw blade to maintain its internal quality under high-speed rotation.
3) Adjust the stroke switch according to the length, width and height of the rough material so that the saw blade lifting and the stroke of the material cart are within a reliable and effective range. The saw blade edge should be 10-20mm away from the rough material before sawing. After sawing, the sawing edge should be 20-40mm away from the bottom of the rough material. Before the saw blade tool holder moves left and right, the saw blade should be completely withdrawn from the rough material sawing edge, and the distance should not be less than 150-200mm to prevent the saw blade from hitting the rough material.
4) Trial cutting can be carried out only after the saw blade is idling and stable. The saw blade is not allowed to be started when the saw blade edge is in contact with the rough material. The saw blade is not allowed to stop rotating during cutting. It must be withdrawn from the sawing edge before it can stop rotating.
5) If the rough material shakes during cutting, stop cutting immediately and continue working after the rough material is firmly fixed. Do not move the rough material at will during cutting.
6) The line speed should be adapted to the hardness and wear resistance of the processed stone. Since there are many types of granite, the corresponding hardness will be different. If a certain stone is soft, you should tell your saw blade supplier the type of stone you are cutting and let them provide the corresponding wear-resistant saw blade. On the contrary, if it is hard granite, a sharp cutting blade is required. If you cut a variety of stone materials, you need a corresponding universal saw blade (Tip: Increasing cutting efficiency will reduce the life of the saw blade when the line speed is not high.)
7) The feed speed mainly depends on the performance of the processed material. For each material, there is a certain range of feed speed when the cutting depth is certain. If the speed is too high, the diamond will wear faster or even fall off, causing the saw blade to consume too quickly. If the speed is too low, the saw blade self-sharpening process will not proceed normally, thus "blunting and slipping" and losing cutting ability. In general, the feed speed should be slow when cutting in and uniform when sawing.
8) For medium-hard stones such as marble and limestone, the cutting depth can be cut through at one time. For hard stones and those with high abrasiveness such as granite and sandstone, the cutting should be done in steps. For granite cutting with a single saw, the cutting depth is generally 10-20mm, and for marble cutting, the cutting depth is 50-100mm. For hard granite cutting with multiple saws on both sides, the cutting depth is 3-5mm each time. It should be determined according to the hardness of the stone, the saw blade used, and the performance of the saw machine.
9) The direction of rotation of the saw blade is the same as the direction of stone feeding, which is forward cutting. The reverse direction is reverse cutting. When reverse cutting, there is an upward vertical force, which forms a tendency to lift the stone. Therefore, in order to stabilize the stone, forward cutting should be used as much as possible under the same conditions. When reverse cutting is used, the cutting depth should be reduced, generally reduced to 1/3-1/2 of forward cutting.
To sum up, the basic requirements for selecting cutting technology for stone cutting machinery are: for stones with low hardness and good cutting performance, deep cutting and slow movement can be adopted, and shallow cutting and fast movement can be adopted, that is, for the same stone and the corresponding saw machines and saw blades, the process parameters of high cutting efficiency, good cutting board quality, and long life of saw blades and substrates should be taken as the standard. The four are complementary and interdependent, and should never be generalized.