Iron powder granulation in powder metallurgy and soft magnetic electronics industries has long confronted technical challenges. Traditional extrusion granulation requires separate mixers; repeated material transfer introduces impurities and extends procedures. Spray granulation demands high capital investment, consumes excessive energy, and features long batch cycles. The resulting loose granules exhibit poor flowability, directly lowering yield during compaction and sintering.
The Qingchi integrated mixing & granulating machine for iron powder combines mixing, kneading, granulation and drying in one unit. It addresses the bottlenecks of iron powder granulation and serves as core equipment for preparing iron-based powder, stainless steel powder and soft magnetic ferrite feedstock.
Qingchi supports one-time feeding of iron powder, binder and solvent. The whole process including mixing & agglomeration, particle growth and drying & discharging is completed in a fully sealed environment. Each batch only takes 25 minutes, eliminating the need for serial equipment and material transfer.
It saves procurement costs for auxiliary mixers, reduces labor for material handling and powder loss on site. An optional built-in heating module accelerates powder drying and shortens granulation cycles further. The compact footprint enables retrofitting of existing and new production lines, lowering overall factory expenditure covering equipment purchase, plant layout and manpower.
The equipment adopts a 3D turbulent reverse stirring structure, achieving thorough blending of iron powder and additives without dead zones. No powder delamination or agglomeration occurs, and binders evenly coat individual iron powder particles.
Output granules feature high sphericity and consistent compactness. Minimal powder shedding and dusting occur during transportation and compaction, delivering uniform green body density. It effectively avoids sintering cracking, dimensional deviation and performance fluctuations caused by uneven powder dispersion, cutting reject rates. It meets stringent manufacturing requirements for iron-based structural parts, soft magnetic inductors, stainless steel precision components and more.
Fine iron powder is combustible and explosive, posing risks during powder processing. Qingchi can customize full explosion-proof configurations according to production line requirements. Electrical circuits, transmission assemblies and sealing structures comply with powder explosion protection standards to eliminate dust explosion hazards and safeguard workshop safety.
Fixed wall scrapers are installed inside the chamber to eliminate material accumulation dead zones. Quick cleaning between different iron powder formulations prevents cross-contamination between batches and guarantees consistent granule performance batch-to-batch.
A complete lineup of models covers lab-scale 1L test machines up to industrial 12,000L mass production equipment, flexibly supporting laboratory sampling, small & medium trial production and ten-thousand-ton continuous production lines.
Rotating speed, mixing duration and particle size can be adjusted freely with high granulation yield. It is applicable to granulation of iron-based powder, stainless steel powder, cemented carbide, superalloy, Mn-Zn / Ni-Zn soft magnetic ferrite and other metal powders for wide application scenarios.
The core mixing blades and cylinder adopt high-strength wear-resistant materials to withstand severe abrasion from iron powder, extending service intervals for spare parts and minimizing downtime.
An intelligent electronic control system stores multiple iron powder granulation formulas in one click, automatically regulating mixing and temperature parameters to reduce human error.
Qingchi machines are exported to powder metallurgy factories in the US, Germany, Japan and other countries. Reliable performance has been verified under continuous 24-hour mass production conditions. Numerous long-term customers repeatedly purchase our equipment for capacity expansion and production line upgrading, gaining wide recognition across the industry.
