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Laboratory Mill

WPBM Series Planetary Grinder

Welso WPBM series planetary grinders use advanced grinding technology to grind samples to nanometer level in a short time. The instrument is particularly suitable for dry or wet grinding of soft, medium-hard, extremely hard and brittle samples, as well as mixed processing, to ensure that each grinding result is highly repeatable. 

Product Details

Welso WPBM series planetary grinders use advanced grinding technology to grind samples to nanometer level in a short time. The instrument is particularly suitable for dry or wet grinding of soft, medium-hard, extremely hard and brittle samples, as well as mixed processing, to ensure that each grinding result is highly repeatable. It is widely used in the fields of pre-treatment of physical and chemical analysis, colloid grinding, preparation of new materials and mechanical alloys.

Planetary Ball Mill


Working principle:

When the equipment is started, the motor drives the sun wheel to rotate, and the grinding jar on the sun wheel rotates around its own axis, and the rotation direction is opposite to that of the sun wheel. The speed ratio is usually 1:-2.3. Under the influence of the self-rotation deflection force, the grinding ball releases a large amount of kinetic energy, violently hits the sample, and generates friction with the inner wall of the grinding, quickly crushing the sample to the nanometer level.



Features

Suitable for long-term sample preparation and continuous operation

Designed for efficient batch grinding to ensure stable and continuous sample processing.

Adjustable speed, smooth operation

Can grind samples to micron (dry grinding) or nanometer (wet grinding) fineness to meet various grinding needs.

Automatic reverse operation function

Prevents sample accumulation during grinding and ensures uniform processing.

Multi-material grinding jar selection

Grinding jars of various materials are provided according to different sample types to meet special needs.

Advanced operation interface

Simple and intuitive, easy to set up and operate, and enhance the user experience.

 Planetary Grinder


Application areas

Medical: tablets, herbal medicines

Chemical: chemical products

Biological: bones, hair

Environmental: soil, plants, seeds

Food: coffee beans, tobacco

Geological: clay minerals, limestone, concrete, coal, metals

Industrial: paper, glass, fiber, ceramics, quartz, wood, paint

Technical Specifications


Model

WPBM-200

WPBM-400

WPBM-500

Feed Size

Soil<10mm, Others≤3mm

<10mm

<10mm

Final Fineness

<100nm

Jar Volume

50mL/jar

Batch Quantity

4x100mL

4x1500mL

4x3000mL

Sunwheel Speed

50-400r/min

Jar Speed

100-800r/min

Speed Ratio

1 : -2

Interval Time

00:01:00-99:59:59

Pause Time

00:01:00-99:59:59

Light In Grinding Chamber

/

/

Yes

Ball Volume

50-100mL

100mL-1500mL

100mL-3000mL

Grinding Ball Diameter

3/5/10/15/20mm

Grinding Ball Material

Stainless steel(304/316), Tungsten Carbide, Agate,PU, PTFE, PP, PA, Zirconium Oxide,Corundum

Grinding Ball Weight

100-400g

200-1000g

200-1000g

Grinding Modes

Dry/Wet

Cooling Function

Optional

Gross Weight

29kg

92kg

150kg

Dimension

530*300*340mm

720*480*500mm

720*480*500mm


contact us
  • +86 21 51096910
  • sales@welsobio.com
    marketing@welsobio.com
  • 1-1009, National Industrial Design Park, No. 599 Jianzhu Road, Binhu, Wuxi , Jiangsu, China, 214062
  • Head Office: No. 439 Jinglian Road, Minhang District, Shanghai,China, 201108

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Contact us

+86 21 51096910

sales@welsobio.com

marketing@welsobio.com

1-1009, National Industrial Design Park, No. 599 Jianzhu Road, Binhu, Wuxi , Jiangsu, China, 214062

Head Office: No. 439 Jinglian Road, Minhang District, Shanghai,China, 201108

Copyright © 2025 Shanghai Welso Technology Co.,Ltd.