Automatic sand stone screening Shaftless drum screening sample sieve

Rotary screen (cylinder screen) is drum screening equipment, which is widely used in the screening of dry powder or granular materials in many industries such as metallurgy, building materials, chemicals, food, medicine, fertilizers, etc. It can also be used for particles Screening of wet materials.
The drum screen has cylindrical, truncated cone, angular cylindrical and pyramidal working surfaces. The rotation axis of the cylindrical and angular cylindrical drum screen is usually installed with a small inclination angle (4-7 degrees), while the conical cylindrical screen It is pretending to be level. The material to be screened is loaded into the cylinder from a section of the cylinder. Due to the rotation of the cylinder, the material will slide along the inner wall of the cylinder. Discharge from the other end of the cylinder.
The rotating speed of the drum screen is very low, the work is stable, and there is no unbalanced work, so it can be installed on the upper floor of the building. The trommel screen generally has only medium sieve and fine sieve. There are three types of support for the drum screen barrel: roller support, bearing support and mixed support. The drum screen is driven by gears and reducers, or by central transmission and supporting roller transmission.

Shaftless drum screening machine is mainly composed of motor, reducer, drum device, frame, sealing cover, and inlet and outlet. The whole is inclined to the ground plane, and the outside is sealed by a sealed isolation cover to prevent environmental pollution. The screening drum is rotated at a certain speed through the variable speed deceleration system, and the materials are separated from the top to the bottom through the screening drum. The fine material is discharged from the lower part of the front end of the screening drum, and the coarse material is discharged from the lower end of the screening drum.


Gravel rolling sieve machine usage
1. Stone field for the size of the stone classification. And the separation of soil and stone dust.
2. Sand and stone field with sand and stone separation.
3. Coal industry for lump coal and pulverized coal separation and coal washing (coal washing machinery components.
4. Chemical industry, mineral processing industry for the size of the block classification and separation of powdery substances.

Gravel rolling sieve machine Working Principle

1. The working environment of the drum sand sieving machine is good: the whole screening mechanism is designed in the sealed dust cover, which completely eliminates the dust flying phenomenon in the process of screening, thus improving the working environment.
2. Low noise of drum sand screen machine equipment: drum sand screen machine in operation, the noise produced by the material and rotating screen is completely isolated by the sealed dust cover, so that the noise can not be transmitted to the outside of the equipment, so as to reduce the noise of the equipment.
3. Long service life: The gravel rolling sieve machine is composed of a number of circular flat steel, specifications of 16mm*12mm, its cross-sectional area is far greater than other separation equipment screen screen cross-sectional area so the service life has been improved.

Stone powder cleaned coal fine coal drum vibrating screen electric screening machine high efficiency: because the drum sand screening machine is equipped with plate type screening mechanism, in the screening process, no matter how wet, sticky and miscellany material into the separation screen, through the relative movement of the screening machine and screen body, never blocked the screen, so as to improve the screening efficiency of equipment.

Gravel rolling sieve machine delivery:

Zhengzhou Berno Machinery Co., Ltd. is located in Zhengzhou, China, is a high-tech company which professional manufacturing the production of screen equipment, shredder for waste disposal, hydraulic baler and various conveyors.

After 30 years of development, Berno is now setting up branches, integrating engineering, trade, research and development, production and sale to develop to be a large sized enterprise. Berno Machinery has been awarded as the pioneer in the field of solid waste in China.
Our company persists in the philosophy of ''quality for survival, reputation and development'', and Berno strives to build a world well known brand to satisfy customers in order to let them rest assured with comfort.

Berno has modern standard workshops, as well as advanced technology and testing equipment. Extensively cooperating with environmental engineering research institutions and other research departments, Berno has continuously improved product values and performance. Now, there are 80 emplees in Berno, among which over 30 are holders of Bachelor's Degree and above, and nearly 70% of senior and experienced engineers of reserchers specilizing in wlectrical engineering, mechanical engineering, hydraulics, logistics and so on.

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1. We can send special after-sales staff to instruct site installation.
2. We can assistance machine debugging and running test.
3. We can training operation workers on site.
4. After complete sets of equipments installation,leave one technical worker to assist customer(free charge) on-site production for half a month until satisfactory training operation workers on site.

Question 1: How to choose the suitable one?
A:Please tell us your detailed requirements by mail or online,we will recommend the suitable one as your request, or customization as your request.
 
Question 2: Why the price is just a range?
A:Because different model and qantity,the price is different,competitive price will be according to your model and quantity.
 
Question 3: How can I pay?
A:We accept many payment,such as L/C, T/T, Western Union, Paypal, Moneygram.......
 
Question 4: When I receive it after pay?
A:The normal models can be sent out within 7-10 days, it's according to your model and quantity, please contact us to check shipping time to your address.
 
Question 5: Is it will be broken during transport?
A:Please don't worry,our goods with standard export package.
 
Question 6: What should I do if I don't know how to use?
A:Please don't worry,manual user will be sent together,you can also contact us for technical support
 
Question 7: What should I do if some parts broken?
A:Please don't worry,we have 12 months warranty except wear parts.You can also buy from us after 12 months.

Question 8: How long of your machine quality guarantee terms ?
Answer: Quality guarantee time is one year(wearing parts excluded).