The significance of pellet strength processing to the powder product is embodied in the three main areas:
        I.  Reduce dust pollution and improve working conditions of operation.< xml:namespace prefix = o />

II. Meet the requirements of production processes, such as increasing porosity and specific surface area, improving thermal transmission and so on.

III. Improve the physical properties of the products (such as fluidity, Breathability, bulk density) and avoid the bad influences of segregation, pulsing, agglomeration, bridging etc. appearing in the follow-up operations (drying, screening, measurement) and the use of the process (measurement, ingredients, etc.), improving the appearance and fluidity, being convenient for storage and transportation, controlling solubility, controlling porosity and specific surface area and so on. Create the conditions for enhance the production and use of process automation and confined operations.

DH series dry roll press pelletizer adopts dry rolling technology to compress the powdery materials with moisture content ≤ 5% into pieces or tablets, then going through the processes of breaking into pellets and screening to make the lump materials into pellet materials that meet the requirements of application. Dry roll press palletizing mainly depends on the manner of external pressure to force the material going through the clearance between the two relatively turning rolls to compress into laminar particles. During course of roller pressing, the real density of the materials can increase 1.5-3 times thus reaching certain demands to pellet strength.
Advanced driving system

Adopting increased double shafts output dedicated reducer and drum gear shaft coupling effectively protects the rolls and the main bearing from damage, increasing the driving efficiency and further improving the production of the products.

Optimized frame structure

The new type frame designed through optimized calculation according to human engineering is equipped with a working platform at the top which has a large door structure near the rollers and which is convenient for the operators. It fully meets the requirements of the customers to reliability of the equipment safety and overhaul convenience.

High efficient, durable alloy steel rolls

The roll matrix is wholly forged with high quality alloy steel, which can widely adapt to all kinds of complicated material conditions: in the design of the wearing layer of the roll surface, have held the rules of the max. mechanical stress effect depth according to the HZ contact theories and pure elastic theories, assembled the materials of tear-proof layer, interlayer, wearing layer, arranged hardness, and improved heat treatment process scientifically so that the crack-proof and wearing properties have been improved greatly. The finally case-hardened patterns of the roll surface after repeated tests, compared and profiting from the technical improvement of other components (such as the feeding unit) can make the pull-in angle of the materials more equipoise, stable, and can effectively remove the axial action of the rolls at the same time to make the equipment working more stable.

Bran-new feeding unit

Bran-new designed feeding unit equipped with regulating valve plate can conveniently realize on-line adjustment: the increased air expansion chamber can make the air carried in materials discharged smoothly and improve the occlusion of the materials between the rollers. The technical improvement of the feeding unit also results in the improvement of the patterns of the roller surface directly.

Simple, safe hydraulic system

In the design of the hydraulic system, we do not only consider it as the source of proving power, but also make it having the function of protecting the equipment. We designed multiple automatic protecting functions, and the optimized hydraulic system makes the motion flexibility of the dynamic rollers more strong and be able to reject the iron lumps mixed in unexpectedly and protect the equipment to run safely. Modularized and integrated design of the hydraulic system does away with the cumbersome, redundant pipelines. It takes less area and makes the whole equipment look simple, beautiful and highly efficient!