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Weighing Hood

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Powder Weighing Hood Used In Pharmaceutical Cleanroom And laboratory

  • Lead Time:

    7-15
  • Product Orgin:

    China/Shandong
  • Shipping Port:

    Qingdao
  • Payment:

    T/T
  • Color:

    Stainless steel
  • Specifications:

    1100mm*1500mm*2400mm
  • Cleanliness Level:

    Class A
  • Filtration efficiency:

    Primary filter G4, medium efficiency filter F8, high efficiency filter PAO H14
  • Average wind speed(m/s):

    0.45±20%
  • Noise (dB (A)):

    ≤70
  • Overall material:

    SUS304
  • Work surface lighting (LUX):

    ≥350
Weighing hood is a kind of special local cleansing equipment used in places such as pharmaceuticals, microbiology research institutes and scientific experiments.

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  • Product Details

Wiskind weighing hood is a kind of special local cleansing equipment used in places such as pharmaceuticals, microbiology research institutes and scientific experiments. It provides a vertical unidirectional air flow, part of the clean air circulates in the work area, and part of it is excluded to the attachment area to make the work area Negative pressure is generated to prevent cross-contamination and is used to ensure a high clean environment in the work area.


Specification

1100mm*1500mm*2400mm

Cleanliness Level

Class A

Filtration efficiency

Primary filter G4, medium efficiency filter F8, high efficiency filter PAO H14

Average wind speed(m/s)

0.45±20%

Noise (dB (A))

≤70

Overall material

SUS304

Work surface lighting (LUX)

≥350

Non-standard products can be made according to customer requirements.Optional accessories: 1. Wind speed sensor; 2. Differential pressure sensor; 3. Frequency converter; 4. Touch screen; 5. PLC control;


Working principle of weighing hood:

Weigh the indoor air through the primary effect filter, the intermediate effect filter, and press it into the static pressure box by the centrifugal fan. After passing the filter, the air is blown out from the air outlet surface of the air diffusion diffusion air supply unit, and the clean air flows through the work area at a uniform cross-section wind speed. The result is a highly clean working environment. The operating area of the center weighing hood is maintained at a negative pressure, and 10% of the circulating air is discharged. The air in the center weighing cell is self-circulated through a three-stage filter system (the filter removes 99.99% of the particles ≥ 0.3 μm) and is designed to meet the GMP requirements of pharmaceutical companies.


Weighing cover use:

The dust and reagent can be weighed and dispensed in the weighing hood equipment, which can control the spillage and rise of dust and reagents, prevent the inhalation of dust and reagents to the human body, and avoid cross pollution of dust and reagents, and protect the external environment and indoors. Personnel safety.


Weighing cover structure:

The weighing cover is made of 304 stainless steel, and the work area wall plate is made of stainless steel 304 (1.2mm thick, oil-drawn wire). The inside of the wall plate is connected with arc angles, and there is no dead angle, which ensures the tightness and cleanliness of the work area.


Negative pressure weighing hood adopts modular design, easy to assemble and disassemble on site. It consists of junior high school efficiency + air case filter + current sharing membrane.


The weighing hood is assembled from the working area, the return air box, the wind box body, the outlet box and the outer box. The control panel is located on the front of the internal working area of the device. The control panel uses the Siemens touch screen inverter control system to control the start and stop of the fan, adjust the frequency of the fan, and adjust the wind speed required in the work area (when the equipment is installed and used, a special person needs to adjust the frequency).


Weigh the hood and display the primary effect filter, intermediate effect filter, filter, pressure difference of the flow equalizing film, wind speed and temperature and humidity, and also equipped with a dust particle monitoring system to monitor the dynamic cleanliness in real time, which serves as a reference for cleanliness. At the same time, abnormal alarms such as wind speed, pressure difference, and cleanliness are also provided. The differential pressure gauge is used to measure the pressure of the filter at different periods and provides a durable performance indicator for the weighing hood.


The initial effect should be cleaned regularly according to the use. Four differential pressure sensors are installed in the return air duct, corresponding to the special current-sharing membrane, primary, middle, and filter resistances, and displayed on the touch screen. When the pressure difference of the filter is out of range, there will be a display alarm on the touch screen and an audible alarm on the automatic control box.


Weighing hood / weighing room protection object:

Protecting drugs

Protection of operators

protect environment



About Us

Wiskind was founded in the late 1970 s, focusing on the cleanroom containment system research and development and manufacturing, covers an area of 1000 mu, the existing staff of more than 1700 people, 160 million square meters building products, distribution on Wiskind 41 years experience in industry research and development and resource integration advantages, has now become a professional cleanroom containment system service, through years of unremitting efforts and persistent pursuit, obtained the customer and society. Has passed FM, CE, SGS, ISO9001, ISO14001 certification.



Shandong Wish Wiskind Clean Technology Co., Ltd. is a Wiskind to exploit market and set up a subsidiary of clean industry, focusing on cleanroom containment system research and development and manufacturing, rely on Wiskind 41 years of experience in industry research and development and resource integration advantages, has now become a professional cleanroom containment system service providers, advocates, and practitioners of modular cleanroom panel smart manufacturers and domestic maximum capacity. The company owns the first automatic production line of cleanroom panels with independent intellectual property rights and the world's leading automatic production equipment for cleanroom doors and windows. Serving many large system engineering enterprises at home and abroad, and occupying the leading edge in the engineering field of biopharmaceutical and medical industry; CSPC PHARMA, Qilu Pharma, Anti-Lu, north China pharmaceutical, and many other worlds tops 500 enterprises have used the company's clean series products.




After Sales Service

Wiskind provides a comprehensive solution plan for professional cleanrooms and implements all-round, integrated services, including requirements analysis, project design, quotation, production order, delivery, construction guidance and daily use and maintenance services. China's 4 subsidiaries, 13 offices and more than 100 business and technical personnel throughout the country, to provide customers with timely, face-to-face services. 


The information management system covers all business processes and cooperates with large-scale logistics companies at home and abroad. The models are complete and the transportation network covers the whole country. Standardized packaging and loading procedures ensure that products are delivered safely and efficiently, making customer service more standardized and efficient. Equipped with a professional after-sales problem processing center, information registration and registration of the completed construction project, regular return visits, and one-to-one efficient processing of the problems, Wiskind promise: Tell me your needs, the rest to us!



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