CO-NELEMixing & Granulation
High-efficiency intensive sand preparation machines engineered for casting foundries, ceramic formulations, and ultra-high-density industrial mixing across Iberia.
High-shear intensive pan mixer designed specifically for green sand molding lines, bentonite activation, and consistent binder distribution.
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Precision batch sand mixer optimized for furan, cold-box, and silicate resin sand preparation with minimal binder consumption.
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Advanced counter-current rotor drive kinematics ensuring zero dead zones and micro-homogeneous dispersion for abrasive sand mixes.
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High-speed pelletizing and granulating mixer suitable for fine silica sand, superabrasives, and technical ceramic powders.
Explore EquipmentPortugal's manufacturing landscape—stretching from the metallurgical hubs of Porto, Aveiro, and Braga in the North to the ceramic and glass industrial basins around Leiria and Marinha Grande—is undergoing a profound technological transformation.
Driven by stringent EU green transition mandates, rising energy costs, and the demand for zero-defect metal castings, Portuguese foundries are rapidly retiring traditional wheel mullers and low-shear pan mixers. Modern metallurgical casting—whether for automotive components, maritime pump housings, or structural architectural hardware—demands moldable sand mixtures with precise compactability, stable green compression strength (GCS), and minimal binder additive consumption.
Furthermore, Portugal's extensive silica sand resources, particularly around the Rio Maior and Coimbra regions, supply raw materials for high-value applications including refractory bricks, specialty mortar, glass manufacturing, and precast Ultra-High-Performance Concrete (UHPC). Achieving the micro-homogeneity required for these advanced material recipes is impossible without forced-action, high-kinetic sand mixing machinery.
• Silica Sand Grain Fineness (AFS 45–60): Demands intensive kinetic energy to coat each grain uniformly with bentonite or resin film without crushing the sand substrate.
• Resin Binder Reduction: High-shear mixing reduces chemical binder usage by 15% to 25% while maintaining mold tensile strength.
• Thermal Stability: Eliminates expansion defects and gas porosity in complex iron and aluminum sand molds produced in Portuguese foundries.
Understanding why CO-NELE intensive sand mixers outperform legacy sand preparation equipment in Portuguese foundries comes down to fluid dynamics and rotor kinematics.
The mixing rotor and pan rotate in opposite directions. The high-speed rotor accelerates sand particles outward into cross-current shearing zones, ensuring every grain receives identical energy input without granule degradation.
Unlike competitors who assemble standard commercial gearboxes, CO-NELE designs and manufactures heavy-duty planetary reducers in-house. Engineered to absorb extreme shock loads caused by dense silica and chromite sand.
Hydraulically actuated bottom discharge gates deliver complete emptying within 8 to 12 seconds. Dual wall-and-bottom scrapers continuously prevent wet sand buildup, eliminating cross-contamination between batches.
| Performance Parameter | Legacy Wheel Muller / Edge Runner | Standard Pan Mixer | CO-NELE Intensive Sand Mixer |
|---|---|---|---|
| Mixing Principle | Heavy compression crushing | Low-shear gravity displacement | High-shear counter-current mechanical forcing |
| Bentonite Clay Activation | Partial / Slow (requires long cycles) | Incomplete (risk of clumps) | 100% Complete (instantaneous water-clay film) |
| Sand Grain Degradation | High (crushes sand grains over time) | Low | Zero (coats grains without breaking matrix) |
| Typical Cycle Time | 180 – 300 seconds | 120 – 180 seconds | 60 – 90 seconds |
| Energy Consumption per Ton | High (heavy deadweight wheel rotation) | Moderate | Lowest (optimized kinetic efficiency) |
Qingdao CO-NELE Machinery Co., Ltd. (Est. 2004) is recognized globally as an authoritative leader in mixing and granulating technology. With 3 production bases spanning 30,000 m² and over 80 national patents, CO-NELE combines European engineering precision with China's advanced industrial supply chain strength.
From heavy steel plate plasma cutting and robotic welding to precision gear grinding and dynamic load testing, every CO-NELE sand mixer is built under one roof in Qingdao. We do not outsource key structural components or gear reducers, guaranteeing 100% traceability and structural integrity compliant with EU Machinery Directive 2006/42/EC and CE standards.
Portuguese buyers benefit from direct factory pricing that delivers up to 40% capital expenditure savings compared to equivalent German or Italian mixing machinery—without compromising on component quality. CO-NELE integrates premium global components including Siemens PLC controllers, Schneider electronics, Hardox/high-chrome wear liners, and SKF bearings.
CO-NELE participated in drafting China's national standards for planetary concrete mixers and intensive industrial mixing machinery. With over 10,000 units deployed in 80+ countries worldwide, our engineering team brings verified field experience to every Portuguese installation.
CO-NELE sand mixing machinery is tailored for specialized industrial sectors operating across the Iberian Peninsula.
Deployed in grey iron, ductile iron, and non-ferrous foundries in Porto and Águeda. Mixes silica sand, bentonite, coal dust, and water with automated inline compactability sensor feedback to produce defect-free sand molds.
For continuous or batch processing of furan, phenolic, and ester-cured resin sand lines. Provides instant liquid binder atomization, reducing costly chemical resin consumption by up to 20%.
Used in Marinha Grande glass factories and refractory brick plants for mixing high-purity quartz and silica sand with additives. Complete enclosed dust-tight design ensures zero workplace particulate emissions.
When Portuguese procurement managers and plant directors evaluate CO-NELE sand mixing machinery, our engineering documentation meets all European Union standards.
Explore CO-NELE’s full range of laboratory, planetary, twin-shaft, and intensive mixing equipment designed for concrete, refractory, ceramics, and sand processing.
Compact 10L lab intensive mixer for R&D centers and foundry sand formula testing in Portugal.
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High-throughput compulsory twin-shaft mixer for large-scale Portuguese infrastructure and ready-mix concrete lines.
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Heavy-duty vertical planetary rotor mixer engineered for zero-defect silica sand and core sand mixing.
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High-precision laboratory pan mixer designed for concrete testing labs and technical university research.
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Specialized intensive laboratory mixer with adjustable rotor speeds for fine sand pelletizing research.
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Reinforced drive planetary mixer built for steel-fiber dispersion and high-shear UHPC precast production.
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Counter-current vertical shaft planetary mixer ideal for dry-cast concrete blocks and pigmented precast elements.
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1.0m³ discharge capacity dual-shaft compulsory mixer configured for high-volume commercial batching plants.
Explore EquipmentWhether upgrading an existing foundry sand line in Northern Portugal or engineering a new high-shear silica sand processing facility, CO-NELE process engineers are ready to deliver custom technical proposals within 24 hours.