Trommel main motor, reducer, roller units, racks, closures, expected out components. Roller means mounted on the frame inclined. After the drum motor reducer are connected together by coupling means, the drive roller means rotatable about its axis. When the material into the drum means, the inclination and the rotation of the drum means, so that the material inverting and rolling the screen surface, so that qualified materials (the undersize product) through the discharge opening at the bottom of the rear end of the drum is discharged, unqualified material (sieve product) by the end of the drum discharge discharge port. As the material within the drum flip, scroll, so that the material in the meshes of the card can be ejected, to prevent clogging of the sieve. Drum sieve sand, drum trommel screening machine with almost the same principle structure, is the difference trommel on the main features of people know it exists and it is called: 1, 2 mesh clogging, smooth running, low noise 3, simple structure, easy maintenance 4, screening cylinder can be closed, collecting five easy-sealed, high machine reliability, a one-time investment of less 6, using a special screen, high efficiency, long life drum sieve works: stone roller screen is made of hexagonal drum, rack, funnel, reducer, motor five parts. After crushing the stone into the drum, on the one hand with the drum rotation is screened by the centrifugal force of the rotating drum and jigging action to screening material. On the one hand large size stone along the slope of the drum forward flow through various mesh size sieve sieve out gradually. After screening a small stone falling into their funnel, and then by the labor movement of people rushed to the finished product or gravity heap. Its structure is simple and reliable, smooth running, with a good seal, no pollution, low noise, fast changer, fine grading, sorting a large proportion of high-yield, sorting accuracy, low failure rate, easy maintenance, etc., especially for sand graded quarry use. Trommel fine workmanship, durable welded steel frame with steel funnel large volume of steel pick from. There were five hopper discharge. Funnel spout with flange connections can be made to both sides or one side of the material, easy to transport or gravity pull, increased production, blocking material to prevent wear mesh, delay production. Adapt to all types of coal bell only accommodate a certain moisture and free of impurities coal coal bell accommodate only a certain moisture and free of impurities. Coal into a flexible and diverse, according to the actual situation of the design only accommodate belts, funnels, into the coal port size is fixed only accommodate belts, funnels, into the coal port size is fixed, the way rotary vibration sieve, screening efficiency up to 95% 10% -70%, depending on the circumstances set Coal moisture 10% to 80%, depending on the circumstances given water from coal, screening volume reached 100% MCR, unrestricted (10% -80%) MCR, depending on water conditions set Coal (10 % -80%) MCR, depending on water conditions set Coal, cutting size 6-30mm, the screen can be adjusted due to fixed, cutting size can be adjusted to ensure that the particle size of the material and there is the phenomenon under excessive bad, have exceeded the phenomenon and large-scale design flexibility than other screen type size limit for small, easy-to-large-scale in size by size, large-scale screening efficiency and other restrictions limited size, screening efficiency and cantilever materials, trommel main technical parameters: trommel Model-hour processing capacity (m3 / h) outside diameter sieves (mm) Length (mm) Power (KW) Dimensions (mm) Weight (t / h) trommel GS1030 1-3 Φ1000 3000 1.5 3580 × 1400 × 2200 1.5 roller Screen GS1230 5-10 Φ1200 3000 3 3580 × 1590 × 1675 2.3 trommel GS1245 8-12 Φ1200 4500 4 570 × 1600 × 2400 2.5 trommel GS1530 15-20 Φ1500 3000 11 4230 × 1950 × 2345 3.3 trommel GS1550 25-30 Φ1500 5000 7.5 6860 × 1900 × 2810 3.8 trommel GS1660 30-50 Φ1600 6000 11 7300 × 2000 × 3000 4.7 trommel GS1830 80-120 Φ1800 3000 7.5 4150 × 1870 × 2240 5.8