Float Sink Spin Dryer and Centrifugal Float Sink Dehydrator

Product Overview

This centrifugal separation system is engineered specifically for coal quality inspection and washability analysis laboratories. Designed to replace labor-intensive manual gravity draining and filtration methods, the equipment automates the rapid separation of organic or inorganic heavy liquids and surface moisture from coal particles following float-sink stratification tests. By generating controlled centrifugal force within an optimized rotational chamber, the unit dramatically shortens sample turnaround times, prevents analytical sample degradation, and ensures standard-compliant testing workflows across high-throughput laboratory environments.

The system serves essential roles in coal preparation plants, mining exploration institutes, thermal power generation facilities, metallurgical testing centers, and commercial third-party analytical laboratories. Operating in strict accordance with national testing standards including GB/T 478 (Method for Float and Sink Analysis of Coal), the apparatus processes fine and coarse coal fractions with consistent repeatability. Its dedicated fluid collection routing minimizes the loss of expensive heavy media such as zinc chloride solutions or organic dense liquids, significantly reducing consumable overhead in routine float-sink fractionation.

Constructed with industrial-grade mechanical components, the equipment delivers exceptional structural rigidity and operational safety during continuous high-speed rotation. The drive mechanism incorporates a gentle acceleration profile that protects the internal mechanics from shock loading while safeguarding delicate coal specimens against excessive particle degradation. Laboratory technicians gain a dependable, clean, and vibration-damped dewatering solution that withstands harsh, corrosive heavy-liquid environments year after year.

Key Features

• Precision High-Speed Centrifugation: Operates at a calibrated rotational speed of 1300 r/min, delivering optimal centrifugal force to extract entrained liquid film from particle surfaces in just 2 to 5 minutes without pulverizing fragile coal samples.
• Heavy-Gauge Stainless Steel Perforated Basket: Built with a high-durability stainless steel inner basket measuring 200 mm in diameter by 250 mm in depth, offering superior resistance to chemical attack from acidic, basic, or halogenated heavy liquids.
• Smooth-Start V-Belt Transmission: Features a precision triangular rubber belt mechanism paired with an inertia-absorbing starter pulley that gradually ramps the basket up to operating speed, eliminating mechanical jolting and extending motor life.
• Integrated Cycle Timer Control: Equipped with a dependable analog-to-digital cycle timer enabling automated runs from 2 to 5 minutes, allowing laboratory operators to standardize dehydration periods and maintain strict repeatability between sample batches.
• Centralized Fluid Drainage and Recovery: Features a fully enclosed collection chamber surrounding the perforated basket that channels extracted dense media directly into external receptacles, facilitating near-total liquid recovery and keeping the workstation pristine.
• Balanced Low-Vibration Chassis: Engineered with an ultra-stable footprint of 510 × 390 × 670 mm and a vibration-damped motor base, ensuring quiet, steady tabletop or bench operation even under uneven sample weight distribution.
• Energy-Efficient Drive Motor: Driven by a reliable 135 W motor engineered for standard 220 V single-phase electrical supplies, delivering sustained torque with low thermal buildup during continuous, multi-batch test schedules.
• Full Accessory Ecosystem Compatibility: Integrates seamlessly with standard coal washability tools, including density hydrometers, stainless steel skimming scoops, mesh-bottom separation buckets, and heavy liquid reservoir containers.

Applications

Technical Specifications

Why Choose This Product

• Strict Standard Compliance for Auditable Results: Built from the ground up to satisfy the procedural requirements of GB/T 478, this unit ensures that coal washability data, ash yield curves, and density distribution profiles align precisely with regulatory standards and industrial inspection protocols.
• Superior Corrosion Resistance and Mechanical Integrity: While conventional laboratory spinners suffer from premature housing degradation due to aggressive salts and heavy media, this system utilizes high-grade perforated stainless steel and sealed structural housings to deliver years of dependable, trouble-free operation.
• Operator Protection and Workplace Ergonomics: By replacing open-air manual draining and improvised scraping with a self-contained, smooth-starting centrifugal chamber, the equipment protects personnel from chemical splashing, minimizes inhalation exposure to heavy liquid vapors, and keeps laboratory benches clean.
• Complete System Solution with Matched Accessories: Beyond the core centrifugal drive, this solution integrates with a comprehensive suite of dedicated laboratory accessories—including precision hydrometers, stainless steel scoops, and mesh-bottom buckets—providing a turnkey setup that accelerates laboratory commissioning.

Contact our technical engineering team today to request a quote or discuss customized sample preparation solutions tailored to your coal analysis laboratory.

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