Rod Mill
Laboratory Conical Rod Mill Fine Grinding Machine
Item Number : KT-BMS
Price varies based on specs and customizations
- Feed Size
- ≤ 2 mm
- Discharge Fineness
- 180 - 400 Mesh
- Motor Power
- 2.2 kW
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Product Overview


This laboratory conical rod mill is an advanced fine and ultrafine grinding system engineered specifically for metallurgical research, mineral processing, geological exploration, and materials engineering laboratories. Built with an optimized conical drum geometry where the feed section features an expanded diameter tapering toward a narrower discharge aperture, the equipment promotes progressive comminution. Coarser particles receive high-impact energy from tumbling steel rods at the wide end, while transitioning finer particles experience controlled attrition toward the narrow end, minimizing excessive over-crushing and ensuring narrow, predictable particle size distributions.
Designed to handle challenging mineral samples, metallurgical slag, coal specimens, ceramics, and industrial construction materials, this system bridges the gap between laboratory bench exploration and pilot-scale ore beneficiation tests. Its high batch capacity, paired with seamless adaptation for both dry and wet grinding operations, delivers the flexibility required by modern analytical facilities. Operators can alternate between rod milling and conventional ball milling simply by interchanging the internal grinding media, tailoring impact and shear mechanics to specific sample characteristics.
Engineered for heavy-duty daily operation, the equipment integrates robust motorized tilting mechanisms and automated programmable digital controls to streamline material charging and product discharge. By replacing labor-intensive manual drum handling with stable motorized drive systems and an intuitive digital interface, this unit reduces operator strain, prevents cross-contamination, and eliminates operational variance across repetitive testing cycles.
Key Features
- Progressive Conical Drum Geometry: The specialized conical architecture establishes a natural classification gradient where coarse materials stay at the wider drum section for impact grinding, and migrating fine particles undergo gentle attrition at the narrower discharge section to strictly prevent over-pulverization.
- Dual Media Operational Flexibility: The grinding chamber accommodates both high-density alloy steel rods for linear impact grinding and hardened steel balls for spherical cascade milling, giving research teams two distinct comminution modes within a single mechanical footprint.
- Automated Electric Drum Positioning: Integrated motorized actuation drives feeding angle adjustments and discharge tilting, completely eliminating manual handling of heavy barrels, protecting operator safety, and ensuring total slurry and powder recovery without physical fatigue.
- Intuitive Digital Menu Interface: A clear LCD screen provides direct access to programmable grinding schedules, motor frequency adjustments, and automated run-time controls, allowing technicians to reproduce precise milling cycles with single-touch consistency.
- Comprehensive Dry and Wet Comminution: Robust sealing assemblies and chemical-resistant chamber components support both dry powder preparation under controlled atmospheric conditions and dense wet slurry processing without leaking or sample contamination.
- Heavy-Duty Multi-Roller Support Drive: Precision-machined drive rollers engineered at φ127 mm diameter deliver smooth, continuous torque transfer at 140 r/min or 160 r/min, ensuring slip-free rotational stability under maximum barrel load conditions.
- Industrial 2.2 kW High-Torque Motor: A durable industrial electric motor provides constant rotational force across variable solid-liquid ratios and high-density mineral charges, maintaining reliable rpm ratings without overheating during prolonged runs.
- High-Throughput Multi-Barrel Scalability: Available in configurations supporting up to 50 individual barrels simultaneously, this platform allows laboratories to process high-volume parallel samples simultaneously under identical mechanical kinetics for rapid statistical comparisons.
Applications
| Application | Description | Key Benefit |
|---|---|---|
| Ore Beneficiation & Flotation Testing | Preparing finely ground mineral samples such as copper, gold, iron, and polymetallic ores for artificial heavy-medium separation and froth flotation screening | Delivers a tightly controlled 180 to 400 mesh discharge that prevents slime formation and maximizes mineral liberation efficiency |
| Coal & Coke Analytical Characterization | Grinding raw coal, coke, and carbonaceous feedstocks down to uniform powder consistency for proximate analysis and calorific evaluation | Minimizes ultrafine dust generation while preserving representative maceral distribution across tested sample volumes |
| Geological Survey Heavy Mineral Analysis | Pulverizing bulk drill cores, rock cuttings, and geological field specimens to isolate heavy sands, rare earth elements, and trace minerals | High single-batch sample capacity accelerates throughput while preventing micro-fracture damage to crystalline marker minerals |
| Advanced Ceramic & Refractory Processing | Wet and dry batch grinding of technical oxide ceramics, silicates, and raw refractory compounds prior to pressing and thermal sintering | Eliminates particle aggregation through uniform rod action, ensuring homogenous packing density during downstream compaction |
| Cement & Construction Material Testing | Milling clinker, blast furnace slag, pozzolanic additives, and gypsum to evaluate reactivity curves and hydration kinetics | Consistent roller speed control yields precise particle fineness curves that mirror full-scale industrial ball mill performance |
| Environmental Soil & Slag Remediation | Comminuting solid industrial residues, metallurgical tailings, and contaminated soil matrices for chemical extraction and leaching kinetics | Motorized electric discharge prevents cross-sample contamination and ensures complete slurry recovery for analytical integrity |
Technical Specifications
| Specification Parameter | KT-BMS-1 | KT-BMS-2 | KT-BMS-3 |
|---|---|---|---|
| Roller Architecture | Three-Roller System | Four-Roller System | Four-Roller System |
| Barrel Capacity Configuration | 4 Simultaneous Barrels | 16 Simultaneous Barrels | 50 Simultaneous Barrels |
| Roller Diameter | φ127 mm | φ127 mm | φ127 mm |
| Roller Rotational Speed | 140 / 160 r/min | 140 / 160 r/min | 140 / 160 r/min |
| Compatible Barrel Diameters | φ108 mm, φ127 mm, φ146 mm | φ108 mm, φ127 mm, φ146 mm | φ108 mm, φ127 mm, φ146 mm |
| Maximum Feed Particle Size | ≤ 2.0 mm | ≤ 2.0 mm | ≤ 2.0 mm |
| Final Discharge Fineness | 180 - 400 Mesh | 180 - 400 Mesh | 180 - 400 Mesh |
| Grinding Media Options | Alloy Steel Rods / Steel Balls | Alloy Steel Rods / Steel Balls | Alloy Steel Rods / Steel Balls |
| Processing Modes | Dry Milling & Wet Slurry Milling | Dry Milling & Wet Slurry Milling | Dry Milling & Wet Slurry Milling |
| Barrel Positioning Control | Motorized Electric Tilting | Motorized Electric Tilting | Motorized Electric Tilting |
| Display & Interface | LCD Digital Menu Screen | LCD Digital Menu Screen | LCD Digital Menu Screen |
| Process Timer Adjustment | Fully Arbitrary / Programmable | Fully Arbitrary / Programmable | Fully Arbitrary / Programmable |
| Rated Motor Power | 2.2 kW | 2.2 kW | 2.2 kW |
| External Dimensions (L × W × H) | 760 × 510 × 520 mm | 1250 × 710 × 720 mm | 2180 × 966 × 868 mm |
| Equipment Net Weight | 120 kg | 220 kg | 450 kg |
Why Choose This Product
- Superior Particle Uniformity: The tapered chamber geometry and linear contact of tumbling steel rods prevent over-milling, delivering an optimal 180 to 400 mesh particle distribution essential for flotation and metallurgical research.
- Media and Operational Versatility: Seamlessly transition between rod grinding and ball milling in both wet and dry processing environments, allowing a single machine to fulfill wide-ranging mineralogical and material science protocols.
- Ergonomic Motorized Operation: Fully automated electric tilting for feeding and discharge replaces hazardous, repetitive manual lifting, eliminating physical strain and avoiding sample spillage.
- Heavy-Duty Industrial Engineering: Built with high-torque 2.2 kW motors, solid φ127 mm rollers, and rigid structural frames, this equipment provides dependable, vibration-free operation under continuous laboratory workloads.
- Scalable Batch Productivity: Choose from compact 4-barrel arrangements up to high-capacity 50-barrel testing arrays to meet any institutional research or industrial pilot laboratory sample throughput requirement.
Contact our technical engineering team today to receive a customized quotation, explore configuration options, or request detailed grinding media recommendations for your specific material processing challenges.
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Laboratory Conical Rod Mill Fine Grinding Machine
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