Sealed Tap Sieve Shaker Enclosed Laboratory Tapping Sieving Machine for Particle Size Analysis

Product Overview

The sealed tap sieve shaker is a heavy-duty laboratory testing instrument designed for precise particle size distribution analysis and raw material classification. Operating through a synchronized combination of horizontal circular swaying and vertical mechanical tapping, this equipment forces fine and cohesive powders through standard test sieves while continuously unclogging mesh apertures. Built with a rigid structural base, an integrated gear transmission system, and flexible sieve clamping assemblies, the shaker delivers exceptional motion consistency and repeatable analytical results across demanding laboratory workflows.

This sieving system is widely adopted across industrial quality control environments, academic research institutes, and materials testing facilities. Primary application sectors include conventional abrasive grain grading, superabrasive production quality verification (such as synthetic diamond and cubic boron nitride powders), geology, extractive metallurgy, powder metallurgy, chemical processing, building materials, cement manufacturing, pharmaceutical powder analysis, and defense material characterization. By providing standardized agitation parameters, the unit ensures strict compliance with national and international screening standards.

Engineered to operate reliably under continuous industrial duty cycles, the machine incorporates an enclosed cabinet housing that minimizes operating noise and prevents airborne dust escape. The integrated automatic shutdown timer permits pre-set operation, allowing laboratory technicians to conduct standardized testing without manual oversight. This unit represents a robust, highly repeatable, and operator-safe solution for material sample preparation and quantitative particle size evaluation.

Key Features

• Dual-Action Mechanical Drive System: Combines a 290 rpm horizontal swaying motion with a synchronized 156 impacts per minute vertical tapping action, providing multi-axial energy input that prevents sieve blinding and accelerates the passage of near-mesh particles.
• Fixed Tapping Stroke Calibration: Features a standardized 38 mm vertical stroke length that delivers uniform kinetic impact to the top of the sieve stack, maintaining absolute consistency across successive sample analysis runs.
• Multi-Diameter Sieve Stack Compatibility: Equipped with an adjustable, quick-action clamping mechanism that securely holds standard laboratory test sieves with frame diameters of 200 mm, 100 mm, and 75 mm without mechanical slip.
• Enclosed Dust and Noise Shielding: Constructed with a sealed protective enclosure that confines fine airborne dust during screening while significantly attenuating operational mechanical noise for a clean, safe laboratory workspace.
• Automated Preset Timing Control: Incorporates an integrated automatic stop mechanism that powers off the drive system precisely when the selected test interval elapses, eliminating operator variability and enforcing testing protocol repeatability.
• High-Torque Industrial Power Plant: Powered by a heavy-duty 370W industrial electric motor operating on 380V three-phase supply, delivering continuous power and stable rotational velocity even under heavy sample and sieve stack loads.
• Vibration-Damping Heavy Cast Base: Built upon a high-mass cast-iron structural foundation that effectively absorbs dynamic kinetic forces, keeping the unit perfectly stationary during operation and protecting internal drive components from stress.
• Wear-Resistant Precision Gear Assembly: Machined with hardened alloy gears and precision-ground eccentric shafts to ensure minimal backlash, smooth mechanical energy transfer, and extended operational longevity under daily analytical workloads.

Applications

The sealed tap sieve shaker is utilized across a broad spectrum of process industries and laboratory environments where accurate dry sieve analysis is essential for process optimization and product quality assurance.

Technical Specifications

The table below presents the full engineering parameters and operational specifications for the PP-AS21 tapping sieve shaker model.

Structural and Mechanical Details

• Kinetic Motion Mechanism: The dual-action drive translates rotational motor energy into simultaneous horizontal circular swaying and top-down mechanical hammering. The 290 rpm sway distributes material evenly across the entire screen area, while the 156 impacts per minute tapping motion imparts a vertical shock wave down the sieve column to release trapped particles.
• Clamping Assembly: The vertical clamping column features quick-adjust locking collars capable of securing single or multi-level sieve stacks consisting of standard test sieves (200 mm, 100 mm, or 75 mm diameter) along with a receiving pan and top cover.
• Enclosure and Safety: The main chassis is fully sealed with a durable industrial finish, isolating internal gears from ambient dust while containing process dust generated during intensive agitation cycles.

Why Choose This Product

• Standardized Dual-Action Agitation: The combination of 290 rpm horizontal oscillation and 156 impacts/min tapping at a fixed 38 mm stroke replicates classic analytical screening methodologies, ensuring direct comparability with historical test data and global standard specifications.
• Uncompromised Heavy-Duty Build Quality: Constructed with a heavy cast base weighing 213 kg and precision-machined alloy steel gears, this equipment resists dynamic structural stress, guaranteeing years of maintenance-free service in continuous testing environments.
• Enhanced Operator Environment & Safety: The fully sealed housing prevents airborne dust escape during powder agitation and effectively lowers operational noise, protecting laboratory personnel and maintaining clean workspace conditions.
• Flexible Sieve Stack Versatility: Universal quick-clamping fixtures effortlessly adjust to hold 200 mm, 100 mm, and 75 mm test sieve frames, providing complete flexibility for diverse sample volumes and testing protocols.
• Precision Automatic Operation: Standard automatic stop controls enable technicians to program exact screening durations, maximizing laboratory efficiency and eliminating human error in sample analysis.

Contact our technical sales team today to request a quote or consult with our application specialists to configure the ultimate sample preparation and sieving system for your laboratory.