Stainless Steel Cross Sample Divider Coning and Quartering Tool for Laboratory Sampling

Product Overview

This cross sample divider is a precision-engineered manual division instrument designed to execute the coning and quartering method for bulk particulate solid samples. Manufactured in strict alignment with the GB/T 474 standard for coal sample preparation, this apparatus provides testing laboratories, analytical assay facilities, and industrial sampling stations with a reliable, bias-free mechanical tool to partition large sample volumes into chemically and physically representative sub-samples. By standardizing manual quadrant separation, the equipment eliminates operator-induced variance and ensures true analytical integrity.

Primarily utilized across coal chemical processing, mineral exploitation, metallurgical assaying, environmental geology, and solid fuel testing, the system effectively processes diverse granular textures ranging from fine powders to coarse crushed aggregates. Whether preparing sample feeds for proximate analysis, elemental determination, calorific testing, or X-ray fluorescence, this manual tool serves as an indispensable primary and secondary splitting mechanism capable of handling moist, abrasive, and inhomogeneous particulate mixtures without material blinding or particle segregation.

Constructed entirely from premium-grade, corrosion-resistant stainless steel, the instrument guarantees superior contamination prevention while standing up to highly abrasive mineral particles. The perpendicular intersecting blade architecture and rigid, reinforced vertical handle ensure uniform downward displacement through dense, flattened material beds. Built for uncompromising long-term performance, this manual apparatus delivers exceptional mechanical reliability, structural rigidity, and clean handling across demanding laboratory and on-site sampling workflows.

Key Features

• Standardized Geometric Division: Built in rigorous compliance with the GB/T 474 national standard, this quartering tool enforces uniform 90-degree orthogonal separation, preventing operator bias during physical particulate reduction.
• Contamination-Free Stainless Steel Fabrication: Fabricated from heavy-gauge, polished stainless steel plates that resist surface oxidation, chemical interaction, and mineral abrasion, protecting high-purity assay samples from trace element cross-contamination.
• Welded Orthogonal Blade Matrix: Precision-welded central cross blades maintain exact perpendicularity under intense downward pressure, guaranteeing identical quadrant volume distribution and consistent cross-sectional cutting through dense aggregate cakes.
• Ergonomic High-Leverage T-Handle: The extended vertical column and ergonomic crossbar handle enable operators to apply uniform, vertical downward force smoothly, minimizing fatigue and preventing horizontal shifting during sample penetration.
• Clean Beveled Blade Edges: The lower blade edges are engineered with a beveled cutting profile that slices cleanly through coarse mineral beds without displacing granular particles or altering localized particle-size distribution.
• Dual Functionality for Nine-Point Sampling: In addition to standard coning and quartering, the symmetrical quadrant geometry serves as an auxiliary positioning guide for standardized nine-point matrix sampling across flattened circular beds.
• Smooth Electropolished Surface Profile: High-finish electropolished surfaces prevent dry fines and sticky, moist particulates from adhering to the inner blade faces, enabling swift material discharge and effortless between-batch cleaning.
• Purely Mechanical Zero-Maintenance Design: Engineered with zero moving mechanical joints, electrical components, or wear parts, this system delivers dependable, failure-free operation in both state-of-the-art analytical labs and remote mining environments.

Applications

Technical Specifications

Standard Operating Procedure Reference (GB/T 474 Method)

Why Choose This Product

• Strict Methodological Compliance: Designed directly around GB/T 474 national specifications, this instrument standardizes manual sample preparation workflows, ensuring audit-ready compliance for certified analytical and commercial testing laboratories.
• Industrial-Grade Metallurgy: Built entirely from high-grade, polished stainless steel rather than coated mild carbon steel, preventing paint chipping, rust contamination, and sample degradation across years of heavy abrasive use.
• Uncompromising Mechanical Stability: Fully welded perpendicular blade joins and an engineered gusset-supported central handle ensure the divider resists warping, twisting, or deflecting when driven into hard, dense, or compact mineral piles.
• Optimized Cleaning and Throughput: The seamless, polished stainless surfaces and crevice-free blade junctions minimize material hang-up, allowing technicians to wash down or brush clean the unit in seconds between successive samples.
• Complete Dimensional Scalability: Available across 400 mm, 500 mm, 600 mm, and 800 mm diameters, providing the exact dimensional fit required for small benchtop analytical charges up to high-capacity bulk pilot preparations.

Contact our technical sales team today to request a quote or discuss customized sizing for your laboratory sampling operations.

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