Products Sample Preparation Crushing & Grinding Machine Liquid Nitrogen Cryogenic Grinder Mill Cryomill with Screw Feeder
Liquid Nitrogen Cryogenic Grinder Mill Cryomill with Screw Feeder

Crushing & Grinding Machine

Liquid Nitrogen Cryogenic Grinder Mill Cryomill with Screw Feeder

Item Number : KT-CG02

Price varies based on specs and customizations


Voltage
220V/50Hz
Host speed
25000r/min
Crushing fineness
40-350 mesh
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Product Application

The Liquid Nitrogen Cryogenic Grinding Machine(Cryomilling) with Screw Feeder is designed to handle a wide range of materials, particularly those that are heat-sensitive or have high toughness. This machine is ideal for processing plastics, rubber, polymer materials, household garbage, elastomers, and other similar substances. Some common materials that can be effectively pulverized include:

  • Plastic raw materials such as PE, PP, PET, PS, PBS, TPU, polyethylene, and PLA.
  • Modified plastic products, plastic runways, and plastic films.
  • Biodegradable tableware, beverages, mineral water bottles, and paraffin wax.
  • Fruits, food items, and other organic materials.

This grinding machine is particularly advantageous for quality inspection institutes, testing companies, plastics companies, new materials companies, petrochemical companies, and university laboratories. It can handle both small quantities of samples and batch processing, making it versatile for various research and industrial applications.

Detail & Parts

Liquid Nitrogen Cryogenic Grinding machine with Screw Feeder for Fine Material Processing

Product Features

The Liquid Nitrogen Cryogenic Grinding Machine with Screw Feeder boasts several innovative features that enhance its performance and usability:

  1. One-Piece Design: The crusher host, collection part, feeding mechanism, liquid nitrogen connection part, and electronic control panel are integrated into a single unit. The chassis is made of 304 stainless steel, ensuring durability and aesthetic appeal.
  2. Flexible Liquid Nitrogen System: The system can use either a foot-operated or electric liquid nitrogen pump, catering to different processing needs. An optional intelligent liquid nitrogen pump offers a more precise and convenient liquid nitrogen input method.
  3. High-Speed Pulverization: The mainframe utilizes advanced technology from China and Taiwan, featuring a no-sieve wind selection structure that enhances both fineness and uniformity. The operating voltage and current are digitally displayed for easy monitoring.
  4. Independent Controls: Each part of the machine is equipped with individual control switches, allowing for adjustable feeding speeds and overload protection to safeguard the motor. An emergency stop button further ensures safety.
  5. Improved Sealing: The new customized PTFE low-temperature resistant sealing ring significantly reduces breakage, enhancing durability and lowering consumable costs. The collector bag can be washed or replaced as needed.
  6. Secondary Use of Liquid Nitrogen: A small fan and ventilation holes in the chassis facilitate the secondary use of vaporized liquid nitrogen to cool the crusher motor, extending its operating life.
  7. Versatile Feeding Mechanism: The screw feeder is mounted on a slide, allowing easy dismantling and adjustment to suit different feed sizes. A manual feeding interface is also available for small sample processing.
  8. Dual-Use Capability: The grinding machine can function as a standalone ultra-fine micro-grinder, providing additional utility and enhancing cost-effectiveness.

Working Principle

The Liquid Nitrogen Cryogenic Grinding Machine with Screw Feeder operates through a sophisticated process that ensures efficient and effective pulverization:

  1. Feeding and Cooling: Raw materials are fed into the grinding machine through a screw feeder, which can be adjusted for speed. Simultaneously, liquid nitrogen is pumped into the grinding machine, directly freezing the raw materials and cooling the crushing chamber.
  2. High-Speed Crushing: The frozen materials are subjected to high-speed rotation by blades, resulting in impact, collision, shearing, and friction. This combination of forces achieves ultra-fine pulverization.
  3. Cyclone Collection: The crushed materials and vaporized liquid nitrogen are brought into a collecting tank via a fineness control structure. The fine powder is collected in a bag, while the vaporized nitrogen is discharged through a cyclone separator.
  4. Closed-Circuit Circulation: The system forms a closed-circuit circulation, maximizing energy utilization and reducing energy consumption. The chilling source can be adjusted to minus 196 degrees, optimizing the pulverization temperature for different materials.

Product Advantages

The Liquid Nitrogen Cryogenic Grinding Machine with Screw Feeder offers several distinct advantages:

  1. Enhanced Brittle Effect: Direct contact with liquid nitrogen and continuous low-temperature freezing enhance the brittle effect of raw materials, improving the overall crushing efficiency.
  2. Uniform and Controllable Feeding: The adjustable-speed screw feeding method ensures uniform and controllable feeding, making batch processing more efficient.
  3. User-Friendly Liquid Nitrogen Control: The liquid nitrogen input is managed via a dial ball valve, with quantified output for ease of use.
  4. Improved Durability: The low-temperature resistant PTFE rubber sealing ring significantly reduces breakage, enhancing the machine's smoothness and lowering maintenance costs.
  5. Versatile Application: The machine is suitable for a wide range of materials, from plastics and rubber to organic foods, making it a versatile tool for various industries.
  6. Cost-Effective: By maximizing energy utilization and reducing consumable costs, the grinding machine offers a high return on investment.

This comprehensive and detailed introduction highlights the advanced features and benefits of the Liquid Nitrogen Cryogenic Grinding Machine with Screw Feeder, making it an indispensable tool for industries requiring fine material processing.

Technical specifications

Parameter Specification
Model KT-CG02
Host power 1.8kw
Voltage 220V/50Hz
Host speed 25000r/min
Crushing fineness 40-350 mesh
Batch production 0.3-3kg/h
Sample size 10g
Feed size ≤5mm
Seal ring Low temperature fluorine rubber
Discharge mode Continuous
Feeding motor 40w
Feeding speed 0-10r/min
Feeding method Screw/Manual
Liquid nitrogen tank model YDS-30
Volume of liquid nitrogen tank 30L(50L optional)
Liquid nitrogen pump model YDB-50J
Liquid nitrogen input Electric pump/Foot pump
Liquid nitrogen output control Scale valve
Crushing mode High speed impact
Discharge mode No sieve wind selection
Weight 46kg
Overall dimension 750450850mm

FAQ

What Is A Cryogenic Grinder And How Does It Work?

A cryogenic grinder is a device that uses liquid nitrogen to cool and grind materials at very low temperatures. The material is first cooled to a brittle state using liquid nitrogen, then fed into a grinding chamber where it is pulverized by high-speed rotating blades or impellers. The process involves repeated impact, collision, shearing, and friction to achieve fine particle sizes. The ground material is then classified by an airflow sieve, and any material that does not meet the required fineness is returned to the grinding chamber for further processing.

What Are The Main Applications Of Cryogenic Grinders?

Cryogenic grinders are widely used in various industries, including food processing, manufacturing, steel grinding, and recycling. In food processing, they are used to grind heat-sensitive materials like cheese, dried fruits, and spices while preserving their flavor. In manufacturing, they are used to pulverize materials like carbon black without thermal degradation. In steel grinding, they help manage heat generated during the grinding process. In recycling, they play a crucial role in processing materials efficiently.

What Are The Advantages Of Using A Cryogenic Grinder?

Cryogenic grinders offer several advantages, including increased productivity through optimized particle size and higher throughput, elimination of caking within the mill, decreased wear on grinding equipment, and the ability to separate composite materials. They also provide a higher production rate, lower energy consumption, finer particle size, more uniform particle distribution, and lower grinding costs. Additionally, they improve pouring properties of materials and reduce microbial load.

Why Is Liquid Nitrogen Used In Cryogenic Grinding?

Liquid nitrogen is used in cryogenic grinding because it provides the necessary refrigeration to cool materials to very low temperatures (down to -196°C). This cooling makes the materials brittle, allowing them to be easily pulverized. Liquid nitrogen also absorbs the heat generated during the grinding process, preventing thermal degradation and maintaining the material's properties. It is an effective and safe cooling medium for achieving ultra-fine grinding results.

What Types Of Materials Can Be Processed Using A Cryogenic Grinder?

Cryogenic grinders can process a wide range of materials, including plastics, rubber, pharmaceuticals, food grades, plant and animal tissues, and heat-sensitive materials. They are particularly effective for materials that are susceptible to oxidation or contain volatile substances, such as carotene, vitamins, coffee, and spices. Cryogenic grinding is also suitable for materials that require fine particle sizes and uniform distribution.

How Does Cryogenic Grinding Improve Material Properties?

Cryogenic grinding improves material properties by reducing particle size to a fine and uniform level, which enhances the material's flowability and mixing characteristics. It also preserves the material's integrity by preventing thermal degradation and oxidation. Additionally, cryogenic grinding can reduce microbial load and improve the material's visual appearance by minimizing speckling. These improvements make the material more suitable for various applications, including pharmaceuticals, cosmetics, and food processing.
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4.7

out of

5

Incredible value for money! This machine has transformed our lab's efficiency.

Aarav Patel

4.8

out of

5

Superb quality and durability. Highly recommended for precision grinding.

Lina Müller

4.9

out of

5

Technologically advanced and user-friendly. A game-changer for our research.

Hiroshi Tanaka

4.7

out of

5

Fast delivery and excellent customer service. The machine is top-notch.

Elena Petrova

4.8

out of

5

Outstanding performance. Handles a variety of materials with ease.

Carlos Silva

4.9

out of

5

Perfect for our lab needs. Reliable and efficient with great tech support.

Isabella Rossi

4.7

out of

5

Highly durable and efficient. A must-have for any modern lab.

Mohammed Al-Farsi

4.8

out of

5

Exceptional value. The machine's precision is unmatched in our experience.

Sofia Hernandez

4.9

out of

5

Advanced technology at an affordable price. Our lab is much more productive.

Lucas Dubois

4.7

out of

5

Quick delivery and superb quality. The machine exceeded our expectations.

Anastasia Ivanova

4.8

out of

5

Highly recommend for any lab. Durable, efficient, and easy to use.

Ravi Kumar

4.9

out of

5

Excellent investment. The machine's performance is consistently reliable.

Emma Johnson

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