Trade Mark No.: 2022609
Rotap Sieve Shaker Manufacturer in India
Rotap Sieve Shaker for Laboratory Particle-Size Analysis
Bionics Scientific is a Rotap sieve shaker manufacturer in India offering machines for repeatable dry particle-size analysis in testing and quality-control laboratories. The machine combines horizontal circular movement with vertical tapping to help particles move through a stacked series of test sieves. This mechanical action provides more consistent agitation than manual sieving and helps laboratories standardize test duration and movement.
Four models are available for 8 inch (200 mm), 12 inch (300 mm), dual-column and combination sieve configurations. Each model uses a ¼ HP geared motor, a 0–60 minute timer and rugged cast-iron and painted mild-steel construction. An optional sound enclosure is available where lower operating noise is required.
How Does a Rotap Sieve Shaker Work?
A prepared sample is placed in the top sieve of a stack arranged from the largest opening to the smallest opening. During operation, the motor produces a controlled circular motion while the tapping mechanism applies repeated vertical impacts. Coarser particles remain on the upper sieves, while smaller particles pass through to the lower sieves. After the timed cycle, the material retained on each sieve can be weighed to calculate particle-size distribution.
Rotap Sieve Shaker Features
| Circular and vertical tapping movement | Repeatable particle-size analysis |
| Suitable for material testing down to the stated mesh range | Uniform mechanical movement throughout the timed cycle |
| Oil-bath mechanism for moving components | Configurations for multiple test-sieve diameters |
| Digital or analogue adjustable timer | ¼ HP geared electric motor |
| Rugged cast-iron and painted mild-steel construction | Optional sound enclosure |
Available Rotap Sieve Shaker Models
Select the model according to the required sieve diameter and number of simultaneous stacks. Confirm the required adapters, test sieves, pan and cover in the purchase order.
| Model | BST-RSS8 | BST-RSS9 | BST-RSS10 | BST-RSS11 |
|---|---|---|---|---|
| Capacity | 8 inch or 200 mm sieves | 12 inch or 300 mm sieves | Two columns of 8 inch or 200 mm sieves | 8 inch (200 mm) or 12 inch (300 mm) sieves |
| Sound enclosure | Optional | |||
| Construction | Cast iron and painted mild steel | |||
| Motor | ¼ HP geared motor | |||
| Timer | 0–60 minutes | |||
| Timer type | Digital or analogue | |||
| Power supply | 220 V | |||
| Available documentation | Confirm standards and supplied certification documents with the quotation | |||
Test-Sieve Capacity and Compatibility
The standard 8 inch configuration can hold up to seven full-height (2 inch) sieves or fifteen half-height (1 inch) sieves, plus a bottom pan and top cover. Configurations for 3, 4, 5, 6, 10 and 12 inch sieve diameters may require the appropriate model or adapter. Always confirm the complete stack height and accessory compatibility before ordering.
Applications
- Pharmaceutical powders and granules
- Cement, concrete, soil and aggregate testing
- Mining, minerals and geological samples
- Chemical powders and industrial raw materials
- Food grains, flour and other dry food materials
- Academic, research and quality-control laboratories
How to Use a Rotap Sieve Shaker
- Select clean, undamaged test sieves suitable for the sample and method.
- Arrange the sieves from the largest opening at the top to the smallest opening at the bottom.
- Fit the receiver pan, place the measured sample in the top sieve and install the cover.
- Secure the complete sieve stack correctly in the machine.
- Set the required test duration and start the machine.
- After the cycle stops, weigh the material retained on each sieve and record the results.
Use the sample quantity, sieve series and test duration specified by the applicable laboratory method. Requirements vary between materials and industries.
How to Choose the Correct Sieve Shaker
- Sieve size:choose either 8 inches (200 mm), 12 inches (300 mm) or some other model.
- Number of stacks: choose single stack or double stack model depending on throughput of testing process.
- Samples and methods: check mesh sizes, height of the stack, and testing time.
- Timer: choose digital or analogue control according to laboratory preference.
- Noise control: request the optional sound enclosure for noise-sensitive work areas.
- Documentation: confirm the applicable standard, calibration or verification needs and supplied documents before purchase.
Maintenance and Operating Safety
Keep the sieve-support surfaces and clamping components clean, inspect the tapping and drive mechanisms for wear, and follow the supplied lubrication and preventive-maintenance schedule. Secure the stack before every cycle and keep hands away from moving components during operation. Electrical and mechanical service should be performed by trained personnel after isolating the power supply.
Test-sieve construction and permissible variation are covered by standards such as ASTM E11 for woven wire test sieve cloth and test sieves. The standard required for the complete test depends on the material and industry; confirm it with your laboratory method.
Request Rotap Sieve Shaker Price
Tell us the required sieve diameter, number of sieve stacks, timer preference and sound-enclosure requirement. Our team will share the suitable model, technical specifications and quotation.
Request Price & BrochureFrequently Asked Questions
A Rotap sieve shaker is a mechanical particle-size analysis machine that combines circular movement with vertical tapping to move material through a stack of test sieves.
The machine moves the sieve stack in a circular motion while a tapping mechanism applies repeated vertical impacts. This action helps particles find and pass through suitable mesh openings.
The available configurations support 8 inch or 200 mm and 12 inch or 300 mm test sieves. Other listed diameters may be used with the appropriate model or adapter configuration.
A standard stack can accommodate up to seven full-height sieves or fifteen half-height sieves, plus a bottom pan and top cover, subject to sieve diameter and model configuration.
The listed Rotap sieve shaker models provide a 0 to 60 minute timer with digital or analogue timer options.
An optional sound enclosure helps reduce the operating noise produced by the mechanical tapping and circular movement of the sieve shaker.
Rotap sieve shakers are used in pharmaceutical, cement, aggregate, mining, mineral, chemical, food, research and educational laboratories.
The supply scope may vary. Buyers should confirm the required sieve diameters, mesh sizes, pan, cover and adapters when requesting a quotation.
Choose according to sieve diameter, number of sieve stacks, sample type, timer preference, testing method and whether a sound enclosure is required.
Send the required sieve diameter, number of stacks, timer type and accessory requirements to Bionics Scientific for a model-specific quotation.
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