Assay Equipment Accessories & Consumables
Laboratory Rod Mill Roller Grinding Jar for Precise Comminution
Item Number : KT-MG1
Price varies based on specs and customizations
- Grinding Media & Mechanism
- Hardened Steel Rods (Line-Contact Impact & Shear)
- Operating Modes
- Dry & Wet Milling (Intermittent Batch / Circulating)
- Particle Size Control
- Uniform Distribution with Minimized Over-Grinding
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Product Overview
This laboratory rod mill roller grinding jar is an engineered comminution vessel designed for laboratory jar rolling mills. Utilizing precision steel rods rather than conventional balls as grinding media, the equipment leverages linear contact dynamics to exert balanced impact and shear forces, delivering consistent particle comminution with minimal over-grinding.
Engineered for metallurgical testing, technical ceramics, geological research, and battery material synthesis, this system processes both dry powders and wet slurries. It supports standalone intermittent batch processing as well as continuous circulating configurations to replicate pilot-scale milling circuits.
Constructed from wear-resistant alloy steel with precision hermetic sealing, this unit ensures smooth rotational concentricity on drive rollers. The robust enclosure prevents sample contamination and hazardous leakage, guaranteeing reliable performance across demanding research campaigns.
Key Features
- Line-Contact Comminution Dynamics: Parallel steel rods roll and cascade along the inner cylinder wall, creating continuous line-contact impact and frictional attrition that selectively reduces coarse fractions while preventing the excessive generation of ultra-fine dust and slimes.
- Hermetic Leak-Proof Vessel Sealing: Equipped with a precision-machined end closure and chemical-resistant elastomeric sealing gaskets, the enclosure guarantees total retention of liquid slurries, volatile solvents, and dry micro-powders without external leakage or atmospheric ingress.
- Dual Dry and Wet Grinding Flexibility: Engineered to perform consistently under dry powder fluidization conditions as well as high-viscosity wet slurry suspensions, allowing process engineers to transition between milling environments without mechanical reconfiguration.
- Intermittent Batch and Continuous Circulating Configurations: Built to operate either as an isolated batch container for discrete laboratory trial sampling or as an integrated in-line circulating vessel equipped with specialized fluid transfer ports for continuous closed-loop testing.
- Wear-Resistant Alloy Construction: Fabricated from certified, through-hardened alloy steel with exceptional surface hardness, minimizing abrasive wear, preventing wall thinning, and eliminating sample batch contamination from structural metallic spalling.
- Precision Cylindrical Concentricity: The outer drum shell is turned to rigorous dimensional runout tolerances, ensuring uniform traction, vibration-free tracking, and quiet operation across standard 24-inch laboratory rolling mill assemblies.
- Engineered Multi-Diameter Rod Charge: Supplied with a scientifically proportioned set of heat-treated steel rods of varying calibrated diameters, optimizing the interstitial void space and accelerating comminution rates across heterogeneous feed sizes.
- Crevice-Free Interior for Rapid Decontamination: Features mirror-polished internal cylindrical transitions and quick-release closure mechanisms, facilitating complete product discharge, effortless wash-down, and rapid changeover between incompatible trial chemistries.
Applications
| Application | Description | Key Benefit |
|---|---|---|
| Mineral Processing & Flotation Feed Preparation | Pulverizes raw mineral ores, core samples, and metallurgical tailings to precise particle liberation thresholds prior to bench-scale froth flotation and hydrometallurgical leaching trials. | Prevents the over-grinding of brittle valuable minerals, drastically reducing slime losses and maximizing flotation recovery rates. |
| Advanced Technical Ceramics & Electronic Substrates | Homogenizes and refines hard ceramic compounds including alumina, zirconia, silicon carbide, and electronic titanates in wet solvent suspensions. | Ensures a strictly controlled, narrow particle size distribution, promoting maximum green-body packing density and defect-free sintering. |
| Battery Active Materials & Solid Electrolyte Synthesis | Processes lithium precursor salts, cathode formulations, solid-state electrolyte powders, and conductive carbon additives under dry inert or wet milling regimes. | Minimizes structural lattice degradation, prevents metallic iron shedding, and delivers uniform particle sphericity for enhanced electrochemical kinetics. |
| Industrial Glass, Frits & Vitreous Enamel Formulation | Comminutes specialty glass cullet, ceramic frits, and vitreous enamel fluxes into stable, uniform aqueous slips for industrial glaze and surface coating applications. | Eliminates unground oversized grains while controlling suspension rheology without unwanted fine agglomeration. |
| Geochemical Assay & Core Sample Analysis | Grinds hard geological exploration samples, exploratory rock chips, and drill cores into sub-sieve analytical powders required for XRF, XRD, and ICP-OES spectroscopy. | Guarantees complete analytical sample representativeness with zero volatile loss or cross-sample contamination during processing. |
| Specialty Chemical Synthesis & Catalyst Carrier Milling | Disperses heterogeneous catalytic precursors, inorganic pigments, and polymer chemical additives within batch or recirculating fluid carriers. | Provides high-energy line-contact shear that increases specific surface area uniformly while maintaining precise process temperature stability. |
Technical Specifications
| Parameter Group | Specification Attribute | Value / Standard Configuration (KT-MG1 Series) |
|---|---|---|
| Core System Classification | Equipment Identifier | KT-MG1 |
| Core System Classification | Vessel Architecture | Sealed Cylindrical Rod Mill Drum / Roller Jar |
| Comminution Mechanism | Primary Grinding Dynamics | Linear Impact & Line-Contact Shear / Attrition |
| Comminution Mechanism | Internal Media Geometry | Calibrated Cylindrical Hardened Steel Rods |
| Operational Flexibility | Processing Atmospheres | Dry Powder Grinding & Wet Slurry Milling |
| Operational Flexibility | Process Flow Modes | Intermittent Batch Mode & Continuous Circulating Mode |
| Roller Compatibility | Drive Roller Length Requirement | Compatible with Standard 24-inch (610 mm) Roller Benches |
| Roller Compatibility | Roller Spacing Accommodation | Adjustable 2-Roll and 3-Roll Industrial Lab Drives |
| Metallurgy & Fabrication | Drum Wall Construction | High-Strength Hardened Alloy Steel (Mirror-Polished Interior) |
| Metallurgy & Fabrication | Media Metallurgy | Through-Hardened Wear-Resistant Carbon/Chrome Steel |
| Sealing & Containment | Closure Interface | High-Torque Quick-Clamping Flange with O-Ring Gasket |
| Sealing & Containment | Gasket Compatibility | High-Durometer Viton / Nitrile / PTFE Chemical Elastomers |
| Processing Feed Specs | Maximum Recommended Feed Size | < 5.0 mm (Heterogeneous Granular Feed) |
| Final Granularity Control | Target Discharge Distribution | Down to < 45 μm (325 Mesh, Matrix & Feed Dependent) |
Dimensional Variants and Capacities
| Variant Model Code | Working Volume | Internal Diameter | Internal Length | Media Charge Weight | Operating Mode |
|---|---|---|---|---|---|
| KT-MG1-1000 | 1.0 Liter | 100 mm | 130 mm | 2.5 kg | Intermittent Batch |
| KT-MG1-2000 | 2.0 Liters | 125 mm | 165 mm | 5.0 kg | Intermittent Batch |
| KT-MG1-5000 | 5.0 Liters | 180 mm | 200 mm | 12.0 kg | Intermittent Batch |
| KT-MG1-1000C | 1.0 Liter | 100 mm | 130 mm | 2.5 kg | Continuous Circulating |
| KT-MG1-5000C | 5.0 Liters | 180 mm | 200 mm | 12.0 kg | Continuous Circulating |
Standard Media Matrix Specification
| Media Charge Property | Graduated Ratio | Diameter Range | Length Tolerance |
|---|---|---|---|
| Coarse Impact Rods | 25% Total Mass | Ø 20.0 mm | Vessel Length - 5.0 mm (±0.5 mm) |
| Intermediate Reduction Rods | 40% Total Mass | Ø 15.0 mm | Vessel Length - 5.0 mm (±0.5 mm) |
| Fine Attrition Rods | 35% Total Mass | Ø 10.0 mm | Vessel Length - 5.0 mm (±0.5 mm) |
Why Choose This Product
- Superior Particle Uniformity via Line-Contact Dynamics: Unlike conventional ball mills that rely on discrete point impacts, this vessel harnesses parallel line-contact comminution. The cascading steel rods selectively fracture oversized material between parallel surfaces, yielding an exceptionally tight particle distribution curve and virtually eliminating fines caused by over-milling.
- Robust Heavy-Duty Metallurgy and Wear Life: Fabricated from certified, high-grade wear-resistant alloy steel, the drum body and companion rod set resist severe abrasive gouging and deformation. The hardened internal boundary ensures structural longevity under high-impact conditions, protecting sample batches from unwanted metallic contamination and reducing maintenance intervals.
- Unmatched Flexibility Between R&D and Pilot Scales: Built to accommodate both dry and wet milling across batch and continuous circulating modes, this unit provides material scientists and mineral processing engineers with the operational adaptability required to model full-scale commercial grinding circuits directly from laboratory benchtop rollers.
- Precision Engineering and Certified Containment: Machined to stringent geometric tolerances for smooth, non-slip rotation on standard laboratory rollers, the system features a robust quick-clamping flange and chemical-resistant elastomeric seals that deliver a leak-proof barrier against hazardous solvents, fine particulates, and ambient atmosphere.
Contact our engineering and technical sales team today to discuss your specific milling parameters, request custom material certifications, or receive a formal quote tailored to your processing facility.
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