Sustainable production of dry ice

based on new generation pu20 granulation modules

Dry ice production has never been that easy before

PU20Granulation module

Equipment for the production of dry ice pellets with a diameter of 20 mm

Advantages Shortly

Convenient scalability multiples of
kg of pellets per hour
Critically low power consumption (for 100 kg / hour)​
The conversion rate is
0 %
близок к теоретическому (нет трения и есть теплообменник)
Minimum space occupied in the shop
(for 100 kg / hour)
Stable fault tolerance (for 100 kg / hour)​
No hydraulic, machine or any kind of oil in the installation​

Advantages detailed

You can choose the productivity by yourself!

  • PU20 module has the productivity of 30 kg/hour.

  • Each module is an independent unit in the overall dry ice production system.

  • You can install 1-2 modules first and increase performance by installing new modules as needed.

Critically low power consumption

The power consumption of hydraulic granulators with a capacity of 100-120 kg / hour, which are produced in different countries of the world, ranges from 4 to 15 kW, depending on the optimization and various options.

Using the new technology, which is currently being patented, the new dry ice granulation modules are able to press pellets without the use of highly loaded hydraulic systems. Pressing is carried out by the force of a special cryogenic pneumatic cylinder, which operates on the gaseous CO2 emitted in each cycle with a pressure higher than atmospheric. The power consumption of each module is 14 W!

The conversion factor at the highest level​

Conscientious manufacturers of dry ice granulators use different design solutions to increase the conversion rate from liquid CO2 to solid CO2 (dry ice pellets). 

By the innovative design, each pellet is pressed almost without friction and at the same time individually, which reduces the cost of liquid CO2.

The modules feature an innovative heat exchanger that reduces the cost of liquid CO2 due to high intensification.

Minimum space occupied in the workshop

The PU20 modules are thin and can be mounted on a wall, and containers can be placed under them, as the pellets fall from the bottom of the module. Each module weighs approximately 110 kg and is 22 cm wide! The modules protrude from the wall by only 30 cm.

As a result, for the production of 120 kg / hour, you only need three modules, which will occupy 0.18 sq. m. If compared with analogues, hydraulic granulators have impressive dimensions and additionally require 1 meter on the sides and back for maintenance and repair, which totals about 9.0 sq. m.

High fault tolerance​

PU20 modules do not include an electric motor, a 220-ATM hydraulic pump, hydraulic distributors, and the entire 220-ATM hydraulic system as a whole, which provides a multiple increase in resistance to equipment failure.

No hydraulic, machine or any kind of oil in the installation

Since the PU modules do not have a highly loaded electrohydromechanical system, this saves money on maintenance of granulators:

  • Oil changes
  • Overheat
  • Maintenance of hydraulics
  • Stuff

According to the operating instructions for hydraulic granulators (USA, China, EU), oil changes are required after the first 100 hours of operation and then every 1000 hours. The volume of the hydraulic oil tank is 50-100 liters. At the same time, a barrel of 200 liters Shell Spirax S3TLV costs about 170-190 thousand rubles. It is also necessary to properly dispose of used oil. It should be taken into account that companies that recycle industrial oil take away from 400 liters. Therefore, you will need to store the used oil or take it to recycling yourself.

If the hydraulic oil reaches a temperature that exceeds the value of 80C, damage occurs to most of the structure of the sealing elements, as well as a faster rate of reduction in the characteristics of the materials from which the seals are made. However, even if you follow the recommendations to prevent the system from operating at temperatures above 80 degrees, the oil viscosity may be at a lower level than necessary.

Every 2000 working hours / annually
Replace the old hydraulic oil and oil filter (Oil change chapter 5.3.1 and 5.3.3).  If the pelletizer with intact degassing boxes "shoots" or if the current consumption of the hydraulic motor is too high, the following wear parts have to be replaced

Every 4000 working hours

Hydraulic cylinder. The seals and the piston rings of the cylinder should be changed every 4000 hours. It is not possible to use exterior characteristics to determine whether a revision of the hydraulic cylinder is necessary. The characteristic which applies is when the cycle time and operating temperature of the oil increase.

Every 5000 working hours

Hydraulic hoses. The hydraulic hoses should be checked every 5000 hours. It is possible to check whether the hoses are still in good condition. This is the case if externally laid hoses show no sign of oil loss. The condition of the hoses which have been laid internally is not visible. These should be changed after 5000 operating hours or if the cycle time and operating temperature of the oil increase. The coupling between motor and hydraulic pump must be replaced.

Every 10,000 operating hours

  • The hydraulic hoses must be replaced.
  • The hydraulic pump and the hydraulic cylinder must be replaced.

For maintenance of hydraulic equipment, a specialist is required to identify and promptly eliminate malfunctions; perform scheduled repairs; prepare spare parts and assemblies for replacement; read hydraulic diagrams and repair.

Detailed Information

Wallplaced PU20 module technical characteristics 

  • Productivity: up to 30 kg/hour;
  • Built-in heat exchanger for extracting cold from exhaust cold gases CO2;
  • Conversion ratio: 1.9-2.2 depends on the liquid CO2 pressure; 
  • Size of pellets: 20 mm;
  • Liquid СО2 pressure: 14-18 atm;
  • Electricity consumption: 14W @ 24 VDC
  • Air consumption:  10 nl/min @ 6 atm;
  • Sizes, mm: (Width)200х(Hight)1200х(Depth)300;
  • Weight: 110 kg;

Photo Gallery

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