Conical Flat Die Pellet Mill Introduction

The conical flat die pellet mill is a highly efficient and energy-saving granulation equipment widely used in the production of granules for industries such as organic fertilizer, biomass fuel, and feed. Its core structure adopts a conical flat die design. Through the relative motion between the pressure roller and the die, it utilizes forces such as extrusion, shearing, and friction to compress powdery or fibrous materials into high-density pellets.

Operating Principle

The material falls onto the surface of the flat die mold through the feed inlet. The conical pressure roller rolls along the flat die surface and applies pressure, forcing the material into the die holes on the mold surface. Under high pressure within the die holes, the material gradually compresses and forms into pellets. Simultaneously, the relative motion between the conical pressure roller and the flat die generates shear and friction forces, further densifying the pellets. After pellet formation, the mold rotates to position the pellets at the cutting blade, where they are precisely cut into uniform-length particles by high-speed rotation and discharged through the outlet.

Product Advantages

① Uniform wear and long service life: The linear velocity at both ends of the conical pressure roller matches the inner/outer rings of the die plate, minimizing misalignment friction and reducing wear, thereby extending the service life of both the die and pressure roller.

② High efficiency and energy saving: Reduced operational resistance leads to lower energy consumption for the conical pressure roller, contributing to cost reduction in production.

③ High pressing efficiency: Evenly arranged pressure rollers ensure stable operation, expand the pressing zone, and significantly improve production efficiency.

④ Strong adaptability: Suitable for coarse fibrous materials such as straw and wood sawdust, as well as low-temperature granulation of bio-organic fertilizers and compost.

⑤ Superior particle quality: Produces high-density, high-strength pellets with smooth surfaces and uniform size, ensuring excellent structural integrity and resistance to breakage.

Main Technical Parameters

Model	Particle Diameter (mm)	Platen Diameter (mm)	Platen Speed (r/min)	Power Supply	Rated Output (t/h)	Motor Power (kw)
420	φ2-16	428	145	380V 50HZ	1.5-2	37
550	φ2-20	530	70	380V 50HZ	2.5-3	55
650	φ2-20	650	66	380V 50HZ	3.0-5	75