The electric RoTap sieve shaker is a highly efficient laboratory device designed to perform two-dimensional sieving motion. It generates a combination of horizontal circular movement and vertical tapping action by striking the top of the sieve stack. This dual-motion mechanism ensures dependable, precise, and repeatable particle size analysis, making it ideal for quality control of raw materials, in-process samples, finished products, and production monitoring.
Its unique orbital motion combined with consistent tapping makes it an advanced screening solution. The hammering action prevents fine particles from adhering to the sieve mesh, resulting in more accurate and meaningful test outcomes.
The RoTap sieve shaker is widely used to separate materials based on grain size and to report results in accordance with standardized testing methods. It replicates the traditional manual sieving process by combining circular motion with knocking action, but with uniform mechanical operation controlled by an electronic digital timer. This ensures consistent and comparable analytical results.
The synchronized horizontal rotational motion and vertical tapping closely simulate classic hand sieving, delivering highly efficient separation. The combined rotating and tapping effect allows excellent material stratification and effective sieving performance.
This sieve shaker offers an economical solution without compromising performance. It performs agitation through controlled circular motion and includes a digital display timer with an adjustable sieving duration from 0 to 99 minutes. Specialized RoTap versions are designed to deliver globally reproducible sieving results.
A protective enclosure equipped with safety sensors helps prevent accidental injuries caused by improper handling of the tamper or sieve column. The quick-release mechanism allows rapid sieve replacement, enabling immediate review of test results.
Working Principle
- Sieve Stack Assembly:A series of standard test sieves with progressively decreasing mesh sizes is stacked vertically, with the coarsest sieve at the top and finer sieves arranged below it. A collection pan is placed at the bottom to gather particles smaller than the finest mesh opening. The sieve stack is securely clamped to ensure stability during operation.
- Sample Placement:The test sample is evenly distributed on the top sieve. Proper sample loading is essential to ensure uniform sieving and to avoid overloading, which may affect accuracy and separation efficiency.
- Horizontal Circular Motion:When the machine is switched on, the motor generates a controlled horizontal circular or orbital motion. This motion causes the particles to move continuously across the sieve surface, ensuring even distribution and preventing localized accumulation of material.
- Vertical Tapping (Hammering) Action:Simultaneously, a mechanical tapping mechanism applies vertical impacts to the top of the sieve stack. This tapping action helps dislodge particles that may lodge in the sieve openings and prevents fine particles from sticking to the mesh surface.
- Particle Stratification and Separation:The combination of rotational movement and vertical tapping promotes natural stratification of particles. Smaller particles pass through the sieve openings to lower sieves, while larger particles remain on the upper sieves. This dual-action mechanism closely simulates traditional hand sieving but with greater consistency and efficiency.
- Time-Controlled Operation:The sieving process runs for a preset duration using an electronic digital timer. Consistent sieving time ensures repeatable and comparable results across multiple tests.
- Completion and Analysis:After the set time elapses, the machine automatically stops. Each sieve is then removed, and the retained material is weighed or analyzed. The mass retained on each sieve is used to calculate particle size distribution and assess material quality.
Key Advantages
- Uniform mechanical motion ensures consistent test results
- Vertical tapping prevents clogging of fine particles
- Suitable for routine laboratory and industrial use
- Economical solution with dependable performance
- Protective enclosure with safety sensors to prevent accidental injury
- Quick-release mechanism allows fast sieve changes and immediate review of results
ROTAP SIEVE SHAKER FEATURES
- Simple and user-friendly operation
- Adjustable timing and speed controls
- Low-noise operation with high sieving efficiency
- Two-dimensional sieving motion
- Accurate particle separation with consistent and comparable results
- High separation efficiency
- Complete reproducibility of test outcomes
- Equipped with an electronic digital timer
- Includes switch, time controller, and automatic shut-off
- Powered by a fully enclosed, robust ¼ HP motor
- Complies with ASTM testing standards
- Designed for quiet performance
- Requires minimal maintenance
Applications
- Particle size analysis
- Granulometric testing
- Quality control laboratories
- Research and development facilities
- Industrial production monitoring
- Raw material inspection
Technical Specifications:
Why should you choose us?
- We are a reliable and responsible supplier of laboratory equipment, particle size analysis systems, and test sieves manufactured in compliance with ASTM and ISO standards. Our solutions are offered at competitive prices and are suitable for a wide range of laboratory and industrial applications.
- With extensive experience in laboratory testing equipment, we focus on delivering high-quality standard instruments that enable accurate and dependable analytical results. Our product range supports research, development, quality control, and material testing requirements.
- Transparency, trust, and respect form the foundation of our relationships with customers, suppliers, and employees. We are committed to providing dependable products, competitive pricing, and consistent support before and after purchase.