Швидкозаморожувач плазми крові KW на 48 контейнера KPFF48B

CERTIFIED AND CLINICALLY TESTED IN UKRAINE!

Contact shock freezing of blood plasma
Freezing is achieved through direct contact with a surface cooled to -75/ -80°C.
For freezing, containers with plasma are vertically lowered into slot-like cells, the walls of which are cooled to at least -75°C.

FREEZING SPEED
Direct contact of the container with the walls of the cells and the power of the compressors minimize the freezing time: <45 min. for 24 or 48 standard containers (nominal volume of 450 ml) with a net plasma content of at least 230 ml and an initial temperature from +25°C to +30°C (tests were conducted with containers holding 260 g of plasma each).
The surface of the cells, made of stainless steel, is smooth, with no sharp edges, ensuring protection against accidental ruptures or punctures of the containers. Any liquid from the cells is drained using tubes connected to a single drainage system of the device.
The uniqueness of KW technology lies in the combination of the advantages of vertical placement of plasma and the horizontal design of the shock freezer!

TEMPERATURE UNIFORMITY
Minimal change in internal temperature during the loading of plasma containers, as cold air always descends.

FREEZING PLASMA IN VERTICAL POSITION

IDEAL PLACEMENT OF PLASMA
In conventional freezers with horizontal shelves, air distribution is not ideal. This leads to containers inside having different temperatures. In contrast, KW technology guarantees identical freezing conditions for each container, resulting in a higher yield of factor VIII and is more reliable.
The resulting container has the shape of a thin parallelepiped, which is convenient for storage.

AUTOMATIC LOADING (Optional)
After closing the lid, the deflectors move automatically, compressing the cells for optimal freezing. (Increased safety and ease of use).

MINIMAL TECHNICAL MAINTENANCE

MAXIMUM ERGONOMICS

ENERGY SAVING
Minimal energy consumption due to economical compressors, quality insulation, and the horizontal design of the shock freezer.

PROCESS TRACEABILITY (Optional)
The shock freezer can be equipped with an electronic recorder and a barcode reading device; the user can set a working schedule for a single batch of freezing, determining:
a) individual plasma units;
b) operator;
c) temperature shift curve: all
data is exported in both paper and digital formats, ensuring complete traceability of the freezing of the batch of plasma containers.

QUALITY OF FROZEN PLASMA
Quality is assessed using fibrinogen concentration values, before and after freezing, as well as factor VIII concentration.

Recovery of 96% fibrinogen and 81% factor VIII concentration – these are very good results!

Wheels: 4 swivel wheels for easy movement of the shock freezer in the laboratory. The handle has a very ergonomic design and locks with a key. KW provides a lifetime warranty on the steel parts of the construction.

COOLING SYSTEM: completely hermetic. The cooling circuit features cascade-mounted hermetic compressors (each with a power of over 2 HP), equipped with an MCB (miniature circuit breaker) and a manometer for monitoring condensation pressure (MR). The compressors are very quiet: less than 65 dB, and at a distance of more than 3m less than 55 dB.

EVAPORATION SYSTEM: for high internal temperature uniformity, copper coils that directly expand are thermally connected to the internal surface of the stainless steel shelves.

CONDENSATION SYSTEM: air-type tubular-ribbed condenser with a large surface area; airflow is controlled by an inverter that changes its speed depending on the temperature of the air at the condenser outlet.

THERMAL PROBES (SENSORS): 2 Pt100 type sensors: one is used for temperature regulation, the other in an emergency situation (switches to regulation in case of damage to the main sensor).

REFRIGERANTS: the refrigerants are non-toxic, non-flammable, non-explosive, and environmentally friendly (maximally safe for the environment) do not contain HC/HCFC (ODP=0)-R404A in the first stage, R508B in the second stage.

SAFETY THERMOSTAT: in case of damage to the main regulator, when exceeding the maximum safe temperature (regulated and programmed by the user), it disconnects the device from the power supply.

VOLTAGE STABILIZER (optional): to protect the equipment from irregular voltage spikes, extend the service life, and prevent operational failures, the device can be equipped with a voltage stabilizer.

TEMPERATURE REGULATION AND CONTROL:
Internal temperature (T) regulation is carried out by a digital electronic control system.

CONTROL PANEL:
ON/OFF control panel, which has an LED display with :

Temperature regulator; Current temperature – T indicators; Keyboard on the control panel for password entry for security; LED “COOLING”, indicating the activity of the cooling process; LED “ALARM”, indicating temperature exceeding acceptable limits (Min/Max); Alarm signals both audible and visual (OFF switches); TIMER: displays the countdown of the freezing procedure time (necessary for maintaining the temperature regime of blood plasma).

POWER FAILURE:
In case of a power failure, an audible alarm is provided by an independent power source — a rechargeable 12 V dc 1.2A*hour battery (expected battery life — 3 years), which is recharged when power is restored due to power switching.
The audible alarm can be turned off by pressing the BUZZER OFF button.

REMOTE ALARMING:
All alarm signals are integrated and connected to a remote signal repetition unit, which has a plug and socket (SA), with the possibility of user connection (sound alarms and visual signaling devices in the laboratory, remote alarm unit, etc.).

ACCESSORIES:
Separately, it is possible to order the "Open Door" alarm.