Sand making machine is mainly to make various sandstone materials into standard construction sand. With the promotion of machine-made sand, there are many types of sand makers on the market. During the processing of materials, the sand making plant is unavoidably subject to wear. The higher the hardness of the material, the greater the wear. Therefore, the production efficiency be improved and the use cost can be reduced only by choosing the appropriate construction sand making plant. So should the sand making machine choose hammer type or impact type?
Features of Hammer Type Sand Making Machine
The hammer type sand making plant is composed of a casing, a rotor, a main shaft, a hammer plate, a hammer head, a lining plate and a striking plate. With the help of a hammer, sand is made of natural stones such as limestone and bluestone with low hardness, which are often used in cement factory and stone processing. The main features of hammer type sand making machines are as follows:
1. The sand forming rate of hammer type sand maker is not high, about 15-40%. So it's mainly used in enterprises with low requirements for finished sand.
2. It can be broken and molded at one time with modular design. Coarse, medium and fine crushing can be achieved with shaping effect by changing the cavity type.
3. The gap of the grate strip can be adjusted to change the discharge particle size according to the user's requirements.
4. When handling sticky and wet materials, it is easy to block the grate strip of the castor bar and cause shut down of equipment.
5. The hammer head and the grate strip screen wear greatly, especially when crushing the materials with high hardness such as pebble, granite and quartzite.
Characteristics of Impact Type Sand Making Machine
The impact sand making plant is composed of seven parts: feeder, distributor, swirling crushing chamber, an impeller body, a main shaft assembly, a transmission device, and a motor. The impact sand maker adopts the crushing principle of "stone striking stone" and "stone striking iron". The finished product has uniform particle size and high quality, so it is often used for high-quality machine-made sand processing. The impact sand maker mainly has the following characteristics:
1. Impact sand making machine is special sand making equipment with high speed, strong impact capacity and sand forming rate is as high as 35-65%.
2. Impact type sand making plant is suitable for soft materials and materials with very high hardness, so it has a wide range of applications.
3. The finished product of impact sand making machine has excellent cube shape with less than 10% needle and flake content, which is suitable for aggregate shaping, artificial sand making and high-grade highway aggregate production.
4. Generally, there are soft start, observation window, mechanical arm hanger, independent thin oil lubrication station, so the maintenance of impact sand making machine is convenient.
5. When the moisture content in the material is more than 9% or contains viscous material, the surface of the impact plate is easy to bond and the productivity of impact type sand making plants is reduced.
Impact sand making machine is a professional sand making machine, so its processed products have higher granularity and quality. Although the hammer type sand making machine has an average quality of the finished product, it is dual-purpose equipment that can make sand and crush stones with low investment price. So both are optional sand making equipment. However, in order to improve the production efficiency of the sand making line and reduce the cost, users should choose according to the actual situation. When the material is limestone, weathered rock, etc., hammer type sand making machine should be used; when the material is granite, pebble and other hard rock, impact type sand making plant should be used.
