Assay Equipment Accessories & Consumables
Sealed Sample Preparation Pulverizer Zirconia Grinding Bowl Laboratory Grinding Mill
Item Number : KT-LB
Price varies based on specs and customizations
- Discharge Fineness
- 120–200 Mesh
- Pulverizing Duration
- < 2 to 3 Minutes
- Grinding Vessel Material
- High-Purity Zirconia (ZrO2)
Shipping:
Contact us to get shipping details Enjoy On-time Dispatch Guarantee.
Why Choose Us
Easy ordering process, quality products, and dedicated support for your business success.
Product Overview
This sealed sample preparation pulverizer represents an advanced vibratory grinding system engineered specifically for contamination-free sample comminution and analytical pulverization. Equipped with a high-density, wear-resistant zirconia grinding bowl assembly, this unit rapidly reduces raw bulk materials into homogeneous, ultra-fine powders while preventing heavy metal cross-contamination and preserving absolute chemical integrity.
Designed to exceed stringent analytical standards including GB474-1996, the equipment is widely utilized across geochemical assaying, mining exploration, coal geology, metallurgical quality control, coking, non-ferrous smelting, advanced ceramics, and chemical engineering. It effortlessly processes tough, brittle, and medium-hard materials such as raw coal, metallurgical coke, gangue, limestone, and metallic ores with compressive strengths up to 800 kg/cm².
Built for continuous heavy-duty industrial laboratory environments, this system integrates a dual-stage vibration isolation chassis, an enclosed eccentric drive mechanism, and an airtight leak-proof bowl seal. This robust structural configuration ensures exceptional operational stability, minimal acoustic output, and uncompromised reproducibility across high-throughput sample preparation cycles.
Key Features
- Ultra-Low Contamination Zirconia Grinding Set: Fabricated from high-purity, yttria-stabilized zirconia, the bowl, grinding ring, and puck assembly deliver diamond-grade hardness and superior fracture toughness, restricting material abrasion to sub-ppm levels and preventing iron, chromium, and nickel contamination during sensitive trace element assays.
- High-Efficiency Vibratory Impact Kinetics: The dynamically balanced eccentric power transmission generates high-frequency multi-directional centrifugal vibrations, driving the internal grinding core and ring against the bowl wall to crush feed particles from under 13 mm down to 120–200 mesh within one to three minutes.
- Hermetic Leak-Proof Bowl Sealing: Engineered with a precision-machined lid closure and resilient chemical-resistant elastomer sealing rings, the grinding vessel prevents fine dust loss, external environmental contamination, and sample cross-talk, safeguarding operator health while maintaining sample mass balance.
- Dual-Action Spring and Rubber Vibration Isolation: Combining high-elasticity alloy suspension springs with heavy-duty cast damping rubber pads, the unit absorbs peak operational oscillation forces, insulating the cast iron machine base and preventing structural vibration transfer to laboratory benches or surrounding sensitive instruments.
- High-Strength Cold-Rolled Steel Protective Housing: The fully enclosed exterior shell is stamped and formed from industrial cold-rolled steel plate and finished with a durable powder coating, providing exceptional mechanical shielding, corrosion resistance, acoustic dampening, and a clean laboratory aesthetic.
- High-Torque Industrial Drive System: Powered by a heavy-duty copper-wound electric motor rated up to 1.5 kW, the drive module delivers consistent rotational torque through an enclosed eccentric bearing sleeve, ensuring instantaneous starts under full analytical loads and prolonged maintenance-free service life.
- Quick-Clamping Mechanical Locking Mechanism: Designed for rapid laboratory turnaround, the positive-locking clamp assembly applies uniform downward pressure onto the vessel cover, securing multiple grinding bowls firmly during high-energy vibration cycles while facilitating rapid sample loading and unloading.
- Programmable Digital Timing Control: Available with automated timing modules, the system enables laboratory technicians to preset exact grinding durations, automatically terminating the vibration cycle upon completion to ensure strict batch-to-batch analytical reproducibility.
Applications
| Application | Description | Key Benefit |
|---|---|---|
| Mining and Mineral Exploration | Rapid pulverization of drill cores, quartz veins, hard rock ores, and tailings prior to fire assay or XRF elemental analysis. | Prevents metallic tool contamination while delivering uniform 200-mesh fineness for reliable grade determination. |
| Coal and Coking Quality Testing | Comminution of raw coal, washed coal, anthracite, gangue, and metallurgical coke according to standard assay protocols. | Fully complies with GB474-1996 sample preparation requirements with zero moisture or volatile loss due to sealed milling. |
| Metallurgical Slag and Alloy Refining | Fine crushing of furnace slag, sinter, limestone flux, and non-ferrous smelting intermediates for process control assays. | Withstands abrasive mineral hardness up to 800 kg/cm² compressive strength with negligible bowl wear. |
| Geochemical Trace Element Surveying | Ultra-fine grinding of soil, sediment, and geological specimens requiring ultra-trace ICP-MS and AAS elemental quantification. | High-purity zirconia grinding medium prevents ppm-level background spikes of Fe, Ni, Cr, and Co. |
| Advanced Technical Ceramics | Preparation of precursor oxide powders, electronic substrate materials, and structural ceramic batches. | Eliminates cross-phase impurities and produces tightly distributed micro-particle profiles without silica contamination. |
| Chemical and Pharmaceutical R&D | Homogenization and particle reduction of dry chemical intermediates, active catalysts, and crystalline compounds. | Chemically inert contact surfaces prevent vessel-reagent reactions, ensuring pristine analytical repeatability. |
Technical Specifications
Multi-Model Operational Parameters
| Model Identifier | Sample Stations (Pots) | Maximum Feed Particle Size (mm) | Load Capacity per Station (g) | Pulverizing Duration (min) | Discharge Fineness (Mesh) | Motor Power (kW) |
|---|---|---|---|---|---|---|
| KT-LB-100-1 | 1 | < 13 | 100 × 1 | < 2 | 120–200 | 1.1 |
| KT-LB-100-2 | 2 | < 13 | 100 × 2 | < 2 | 120–200 | 1.1 |
| KT-LB-100-3 | 3 | < 13 | 100 × 3 | < 2 | 120–200 | 1.5 |
| KT-LB-100-4 | 4 | < 13 | 100 × 4 | < 3 | 120–200 | 1.5 |
| KT-LB-100-5 | 5 | < 13 | 100 × 5 | < 3 | 120–200 | 1.5 |
| KT-LB-100-7 | 7 | < 13 | 100 × 7 | < 3 | 120–200 | 1.5 |
| KT-LB-200-1 | 1 | < 20 | 200 × 1 | < 3 | 120–200 | 1.5 |
| KT-LB-200-2 | 2 | < 20 | 200 × 2 | < 3 | 120–200 | 1.5 |
| KT-LB-200-3 | 3 | < 20 | 200 × 3 | < 3 | 120–200 | 1.5 |
| KT-LB-200-4 | 4 | < 20 | 200 × 4 | < 3 | 120–200 | 1.5 |
| KT-LB-400-1 | 1 | < 26 | 400 × 1 | < 3 | 120–200 | 1.5 |
| KT-LB-400-2 | 2 | < 26 | 400 × 2 | < 3 | 120–200 | 1.5 |
| KT-LB-400-3 | 3 | < 26 | 400 × 3 | < 3 | 120–200 | 1.5 |
| KT-LB-400-4 | 4 | < 26 | 400 × 4 | < 3 | 120–200 | 1.5 |
| KT-LB-500-1 | 1 | < 26 | 500 × 1 | < 3 | 120–200 | 1.5 |
| KT-LB-1000-1 | 1 | < 26 | 1000 × 1 | < 3 | 120–200 | 1.5 |
| KT-LB-100/200-I | Dual Mixed Station | < 13 / < 12 | 100 / 200 | < 2 | 120–200 | 1.5 |
| KT-LB-300/400-II | Dual Mixed Station | < 23 / < 26 | 300 / 400 | < 2 | 120–200 | 1.5 |
Structural and Material Engineering Specifications
| Engineering Parameter | Technical Specification |
|---|---|
| Grinding Media and Vessel Material | High-Purity Yttria-Stabilized Zirconia (ZrO2) with matching puck and ring |
| Media Abrasion Level | Ultra-low ppm-level loss, zero heavy metal / glass matrix contamination |
| Permissible Material Compressive Strength | < 800 kg/cm² |
| Dynamic Milling Mode | High-speed orbital vibratory impact and frictional shear comminution |
| Sample Preparation Compliance | Exceeds national standard GB474-1996 preparation specifications |
| Enclosure Architecture | Heavy-gauge cold-rolled steel plate, anti-vibration sealed shell with powder finish |
| Machine Base Construction | High-density cast iron dampening platform with low-center-of-mass design |
| Primary Vibration Isolation | Multi-point high-strength, high-elasticity alloy spring suspension |
| Secondary Vibration Absorption | Industrial-grade molded dampening rubber base pads (dual-action vibration reduction) |
| Power Transmission Assembly | Heavy-duty electric motor with shielded eccentric counterweight and enclosed pin sleeve |
| Clamping System | High-pressure vertical quick-action mechanical lock with ergonomic handle |
| Control System Options | Standard manual operation or automated digital timer control (denoted by -A suffix) |
Why Choose This Product
- Pristine Analytical Purity: Unlike standard hardened alloy steel, manganese steel, or agate grinding sets that leach iron, cobalt, and silica impurities, our high-density zirconia vessel delivers exceptional chemical inertness and diamond-like wear resistance, ensuring baseline integrity for ppm- and ppb-level analytical assays.
- Engineered Dual-Action Dampening: Fabricated with a cast iron stabilizing base, high-tensile alloy suspension springs, and secondary elastomer base cushions, this unit eliminates erratic harmonic oscillations at the source, protecting surrounding laboratory instruments and providing quiet, stable operation during continuous high-energy milling.
- Strict Quality Standard Compliance: Surpassing the rigorous criteria of GB474-1996 for analytical sample preparation, this system guarantees uniform grain-size distributions between 120 and 200 mesh within three minutes, delivering exceptional batch-to-batch consistency and eliminating sample prep discrepancies.
- Scalable Multi-Station Flexibility: With configurations spanning single-pot high-capacity grinding vessels to seven-station simultaneous pulverizing arrays, our platform accommodates diverse laboratory workloads, offering seamless throughput expansion and optional digital timing automation tailored to testing protocols.
- Rugged Industrial Longevity: Built using cold-rolled steel protective housings, enclosed eccentric drive shafts, and precision-machined sealing interfaces, this equipment withstands harsh, dust-laden industrial environments with minimal preventative maintenance demands.
Contact our technical application specialists today to request detailed engineering specifications, discuss custom grinding bowl configurations, or obtain a competitive quotation for your laboratory.
Trusted by Industry Leaders
REQUEST A QUOTE
Our professional team will reply to you within one business day. Please feel free to contact us!
Related Products
Sealed Continuous Sample Preparation Pulverizer with Continuous Feeding and Discharging System
Engineered for demanding mineral laboratories, this sealed continuous sample preparation pulverizer features automated feeding, inline sample division, and direct discharging. Achieve fine grinding under 0.2 mm with 99.98% sieve compliance, complete dust containment, zero cross-contamination, and unmatched operational efficiency.
Sealed Sample Preparation Pulverizer Vibratory Disc Mill for Laboratory Analytical Grinding
Engineered for rapid laboratory comminution, this sealed sample preparation pulverizer processes brittle materials up to 8mm into fine 80 to 200 mesh analytical powders within minutes, ensuring zero cross-contamination, superior batch repeatability, and completely dust-free operation across demanding industrial testing environments.
Sealed Laboratory Sample Preparation Pulverizer High Speed Vibratory Grinding Mill for Chemical Assay
This sealed laboratory sample preparation pulverizer rapidly grinds brittle materials into 80 to 300 mesh fine powder in minutes. Featuring electronic timing, quick clamping, and wear resistant grinding bowls, it delivers zero sample loss for reliable chemical assaying.
Laboratory Hammer Crusher Sealed Sample Preparation Pulverizer for Coal and Minerals
This high-performance laboratory hammer crusher meets GB474 sample preparation standards across coal, metallurgy, and geological testing. Featuring a dust-free sealed design, high-manganese steel hammers, adjustable output sizing, and optional integrated sample dividers for maximum industrial laboratory sampling efficiency.
Sealed Laboratory Sample Preparation Pulverizer High Speed Vibratory Grinding Mill
Achieve rapid analytical sample preparation with this high speed sealed vibratory sample pulverizer mill. Engineered to process brittle minerals into 80 to 300 mesh fine powder within minutes with total dust containment maximum safety and zero sample cross contamination.
Sealed Laboratory Sample Preparation Pulverizer Vibratory Grinding Mill for Brittle Materials Assay
Prepare analytical samples rapidly with this high-efficiency sealed laboratory pulverizer. Engineered for brittle materials, it converts feed stock into 80 to 300 mesh powder within minutes using wear-resistant grinding media, digital timing, and smooth vibratory action.
Sealed Laboratory Sample Preparation Grinding Mill Assay Specimen Pulverizer
This high performance sealed laboratory sample preparation grinding mill rapidly reduces hard brittle materials into uniform 80 to 300 mesh powders within 1 to 3 minutes. Featuring interchangeable wear resistant grinding bowls, it delivers rapid contamination free sample preparation.
Sealed Laboratory Assay Sample Pulverizer High Speed Vibrating Cup Mill for Coal Ore Mineral Sample Grinding
High performance sealed laboratory sample pulverizer engineered for rapid grinding of coal coke limestone and mineral ores to fine mesh powder within two to six minutes for precise assay sample preparation in high throughput mining and industrial environments.
Electromagnetic Ore Sample Preparation Pulverizer Laboratory Grinding Mill
Accelerate laboratory workflows with this electromagnetic ore sample preparation pulverizer delivering rapid high frequency impact milling Transform raw mineral feeds up to 15 mm into fine 80 to 200 mesh powders within minutes for precise analytical testing today
Hydraulic Sample Pulverizer Grinding Machine Automatic Laboratory Sample Preparation System
This hydraulic sample pulverizer grinding system delivers ultra-fine sample preparation down to 80-300 mesh. Featuring automatic hydraulic clamping, programmable timing, and heavy-gauge construction, it ensures fast, consistent, and reliable material reduction for XRF and metallurgical quality control testing.
Laboratory Vibrating Sample Mill High Speed Grinding Pulverizer Cup Mill Machine for Sample Preparation
High-efficiency laboratory vibrating sample mill designed for rapid sample pulverization. Features automatic hydraulic clamping options, durable steel or ceramic grinding vessels, integrated precision timers, sound-insulated construction, and ultrafine discharge capability down to 300 mesh for advanced analytical testing.
Small Laboratory Sealed Jaw Crusher and Sample Divider System for Ore Coal and Material Preparation
Engineered for high-precision sample preparation, this small laboratory sealed jaw crusher and sample divider combines heavy-duty jaw crushing with automated reciprocating sample reduction. Ideal for coal, metallurgy, geology, and power generation material quality testing processes.
Laboratory Sealed Hammer Crusher for Efficient Sample Preparation
Discover the Laboratory Sealed Hammer Crusher for efficient sample preparation. Ideal for coal, metallurgy, and research, this crusher ensures high production efficiency and environmental friendliness.
Laboratory Small Rod Mill Barrel High Precision Rod Grinding Jar for Ore Sample Preparation
Engineered for high-precision laboratory sample pulverization, this durable rod grinding barrel incorporates specialized hexagonal and cylindrical grinding rods to deliver rapid material breakdown and uniform particle size reduction across geological, mining, and metallurgical sample preparation workflows with unmatched reliability.
High Speed Laboratory Pulverizer Stainless Steel Sample Grinding Mill for Pharmaceutical Agricultural and Mining Testing
This high-speed laboratory pulverizer features premium stainless steel blades and a specialized crushing chamber, delivering rapid, contamination-free sample preparation down to 200 mesh fineness. Ideal for agricultural, pharmaceutical, geological, coal, and industrial research applications demanding maximum analytical sample accuracy.
Laboratory Disc Pulverizer Disc Mill for Fine Sample Grinding
Discover high performance laboratory disc pulverizer systems engineered for precise batch and continuous fine grinding of brittle materials, featuring dual wheel gap adjustment, durable grinding discs, and consistent particle reduction across metallurgy, mining, geology, and advanced material testing applications.
Laboratory Micro Pulverizer High Speed Dry Sample Grinding Machine Benchtop Lab Pulverizer Mill
This high speed laboratory micro pulverizer enables rapid dry sample grinding from 40 to 200 mesh in under five minutes. Featuring a compact benchtop footprint, powerful motor performance, and a sealed chamber, it optimizes daily sample preparation across analytical laboratories.
Laboratory Micro Pulverizer High Speed Mini Mill Grinder for Fine Dry Material Grinding
High-performance laboratory micro pulverizer designed for rapid dry material grinding. Achieves 40-200 mesh fineness in just 0.5 to 5 minutes with ultra-high motor speeds up to 28,000 RPM. Ideal for analytical labs, quality control, and R&D testing applications.
Combined Crushing and Division Sample Preparation Unit Automated Coal and Mineral Milling Reduction System
This high-capacity combined crushing and sample division system delivers automated two-stage size reduction and precision sampling for coal, minerals, and metallurgy under GB standards, featuring dust-sealed operation, adjustable division ratios, and robust high-manganese steel crushing components.
Enclosed Riffle Sample Divider Sealed Riffle Splitter for Laboratory Material Reduction
Engineered for representative laboratory sampling, this enclosed riffle sample divider prevents dust dispersion while delivering unbiased material splitting. Available in galvanized or stainless steel, the sealed design ensures high sample uniformity, operator safety, and exceptional precision across demanding quality control protocols.