LMSM 75/200 Sieve Shaker
The LMSM 75/200 sieve shaker for wet & dry sieving with 75–203 mm (8”) test sieves. Digital settings, 3–30 Hz, down to 20µm
The LMSM-75/200 is suitable for sieving soft, fibrous, hard and brittle materials in the dry and wet state and is designed for analytical test sieves from 75 to 203 mm (8 inch). All sieving parameters are digitally pre-selected and can be stored and recalled. The vibration is controlled by a microprocessor. Depending on the characteristic of the sample material to be sieved a sieving process can be done down to 20 µm. The optimum filling level for each test sieve depends on the sieve frame diameter (75/100/150/200/203) and in relation of the mesh size of the test sieve
Features and Benefits
- Optimum sieving results
- Suitable for dry and wet sieving
- Suitable for batch sieving
- For test sieves of up 203mm / 8" diameter
- CE certified
- Suitable for 20μm up to 150 mm mesh sizes
- All sieving parameters can be digitally pre-selected
- Interval mode adjustable
- Optimum operation due to ergonomic key pad
Technical Specifications
| Applications | separate, classify, and analyze particle sizes in materials like powders, aggregates, and soils for quality control and research purposes. |
| Working principle | sieving with vibrations |
| Vibrational frequency regulation | from 3 to 30 Hz (180 - 1800 min-1), in 0.1 Hz steps |
| Setting adjustment method | control panel |
| Time setting | 00 Sec - 99 Minutes, Display of sieving time in minutes |
| Maximum sieve diameter | 200mm diameter / 8 inch (203mm) |
| Minimum sieve diameter | 75mm |
| Sieve mesh sizes available | woven wire: 20μm - 125mm square hole perforated plate: 4mm - 125mm round hole perforated plate: 1mm - 125mm wet washing: 20μm - 125mm |
| Sieve stack | 9 sieves plus collector and lid |
| Ambient temperature | 5°C - 40°C |
| Atmospheric humidity | 85% RH |
| Electrical requirements | 400W |
| Power supply | 230V ± 10% – 50/60Hz |
| Power connection | 1 phase |
| Fuses | 2 x T2A 250V |
| Standard | CE |
| Protection code | IP40 |
| Weight | 28kg |
| Dimensions (width x length x height) | 300 x 240 x 240 mm (670 mm with rods) |
Sieve shaker working principle
A sieve shaker is a laboratory or industrial device used to separate, classify, and analyze particle sizes within a bulk material sample.
It works by vibrating a stack of sieves with different mesh sizes, causing particles to pass through the mesh in sequence, from the largest opening at the top to the smallest at the bottom.
Sieve shakers can handle materials ranging from fine powders to larger granular substances, making them essential in applications across mining, pharmaceuticals, food processing, and material science.
Sieve shakers use an electric motor to create rapid, uniform vibrations, efficiently separating particles based on size as they move down the stack of sieves.
The vibrations can often be adjusted for frequency and intensity to handle different material types and densities.
The device holds multiple sieves, each with a unique mesh size, allowing for precise separation of particles into various size ranges. This stackable design ensures efficient and organized classification.
Many modern sieve shakers come with programmable timers and settings to control the vibration duration and frequency, allowing for repeatable, standardized results.
Designed for flexibility, sieve shakers accommodate various sieve sizes and materials, from fine powders to coarse granules, making them suitable for use in different industries.
Sieve shakers provide precise particle size analysis by mechanically separating particles according to specific mesh sizes. This level of accuracy is critical for quality control and standardization in applications like material testing, pharmaceutical formulation, and soil analysis.
With controlled vibration settings, sieve shakers deliver consistent results across tests, essential for standardized processes and regulatory compliance in industries such as food, pharmaceuticals, and mining.
The automated shaking process significantly reduces the time and manual effort required for particle separation compared to traditional manual sieving, making it ideal for high-throughput labs and production environments.
By keeping the entire sample within a closed system of stacked sieves, sieve shakers ensure minimal loss of material during testing, which is beneficial when working with valuable or limited samples.
Sieve shakers are user-friendly, often requiring minimal setup or maintenance, making them cost-effective and practical for both laboratory and industrial use.
Suitable for a wide range of materials and adaptable to different sieve sizes, sieve shakers support applications in industries from mining to agriculture, ensuring accurate particle size data for improved process control and product quality.
In summary, a sieve shaker is an essential tool for any operation requiring accurate, efficient, and reproducible particle size analysis.
Its combination of precision, versatility, and ease of use makes it a valuable asset for quality control, research, and development across numerous industries.
Control panel
The sieve shaker come with programmable timers and settings to control the vibration duration and frequency, allowing for repeatable, standardized results.
Test Sieves
Laarmann offers a wide range of test sieves with precision woven wire, perforated plates or electroformed mesh. One of the many advantages of our sieves compared to those of other manufactures is the effective design that reducesses maintenace and cross contamination. The folded rim ensures a high stabilityfor laboratory and industrial applications besides having an optimum fitting accuracy when used in sieve stacks.
We supply test sieves with the following diameters: 8" (inch) / 12" (inch) / 100 mm / 150 mm / 200 mm / 300 mm / 315 mm / 350 mm / 400 mm / 450 mm.
test sieves can be ordered on our webshop
LMSM 75/200 Sieve Shaker FAQ (Frequently Asked Questions)
Applications
- Incoming raw material QC: check particle size distribution of powders (e.g., minerals, pigments, fillers) before production.
- R&D formulation work: compare different milling settings by sieving lab batches and documenting the PSD shift.
- Pharmaceutical & chemical powders: routine sieve analysis of excipients, APIs, salts, catalysts (dry sieving; wet sieving if prone to agglomeration).
- Food & additives: flour, cocoa, spices, starches, sugar fractions—verify consistency and remove oversize particles.
- Soils & environmental samples: soil grading / classification work (dry or wet depending on moisture/clay content).
- Ceramics & building materials: clays, cement raw mix, fine fillers—verify fineness before firing/binding steps.
- Metal powders (AM / MIM): quick screen of powder fractions for process stability (use appropriate sieve stack/material).