The characteristics of desktop clean bench products and their application

The VD series table top clean Bench is a localized purification unit designed to create a sterile, dust-free, and clean environment in fields such as medical and health, bioengineering, and scientific research. It ensures optimal conditions for sensitive operations by maintaining high air quality standards. **Product Features** 1. The vertical airflow design with a quasi-closed glass damper makes the unit easy to operate and provides efficient protection. 2. Compact in size, it can be placed on a regular workbench, making it ideal for use in small laboratories or studios. 3. Equipped with a remote control switch, the fan system operates in two speeds, ensuring consistent and optimal airflow in the working area.  **Technical Parameters** | Parameter | VD-650 | VD-850 | |----------|--------|--------| | Cleanliness Level | Class 100 @ ≥0.5μM (US Federal 209E) | Class 100 @ ≥0.5μM (US Federal 209E) | | Number of Colonies | ≤0.5 pcs/dish·hour (Φ90mm culture plate) | ≤0.5 pcs/dish·hour (Φ90mm culture plate) | | Average Wind Speed | 0.25 ~ 0.45 m/s (fast and slow speed) | 0.25 ~ 0.45 m/s (fast and slow speed) | | Noise | ≤62 dB(A) | ≤62 dB(A) | | Vibration Half-Peak | ≤0.5 μm (x, y, z direction) | ≤0.5 μm (x, y, z direction) | | Illuminance | ≥300 Lx | ≥300 Lx | | Power Supply | AC single phase 220V/50Hz | AC single phase 220V/50Hz | | Work Area Size | W1×D1×H1 | W1×D1×H1 | | Work Area Size | 500×480×450 | 700×480×450 | | Dimensions | W×D×H | W×D×H | | Dimensions | 650×550×850 | 850×550×850 | | HEPA Filter Specifications | 480×460×38×1 | 680×460×38×1 | | Fluorescent / UV Lamp | 10W×1 / 10W×1 | 15W×1 / 15W×1 | **Structure** The purification workbench consists of a cabinet, fan, high-efficiency filter, and operation switch. The cabinet is made of cold-rolled steel, with a sprayed surface finish. The workbench surface is constructed from stainless steel. The fan system allows for adjustable air volume, enabling users to maintain the desired wind speed within the clean working area and extend the life of the high-efficiency filter. **Working Principle** Air passes through a pre-filter, is pressurized into a static pressure chamber by a centrifugal fan, and then filtered through a high-efficiency filter before being blown out through the air outlet. This creates a uniform airflow that cleans the workspace and removes dust, resulting in a highly purified environment. **Installation and Use** Place the workbench in a clean room (preferably a 100,000 or 300,000 class cleanroom). Plug in the power supply and turn on the control panel. Before starting, clean the work area and the exterior of the bench thoroughly. After running for 10 minutes, normal operation can begin. **Maintenance** 1. Regularly remove and clean the primary filter; the cleaning cycle is generally 3–6 months. Failure to clean may reduce airflow and affect performance. 2. If the desired airflow cannot be achieved after replacing or cleaning the primary filter, adjust the fan voltage to achieve the required wind speed. 3. If the fan voltage is at maximum but the desired wind speed is still not achieved, the high-efficiency filter may be clogged and should be replaced. Typically, the service life of a high-efficiency filter is around 18 months. 4. When replacing the high-efficiency filter, ensure the correct model size, follow the arrow direction, and check the seal to prevent any leakage. **Common Faults, Causes, and Solutions** | Fault Phenomenon | Cause | Solution | |------------------|-------|----------| | Main power switch does not close, trips automatically | Fan stuck, motor blocked, or short circuit | Adjust fan position, replace impeller and bearing, check wiring | | Lower wind speed | Primary filter too dusty | Clean or replace primary filter | | Fan does not turn | Contactor failure or blown fuse | Check contactor circuit, replace fuse | | Fluorescent light not lit | Lamp or relay damaged | Replace lamp or relay | This product is ideal for laboratory environments, including biological safety cabinets, fume hoods, transfer windows, and cleanrooms. It is widely used in medical, pharmaceutical, biotechnology, electronics, and food industries. Zhejiang Sujing Purification Equipment Co., Ltd. is located in Daoxu Town, Shangyu District, Shaoxing City, Zhejiang Province. As one of the leading manufacturers in East China, the company provides professional air purification systems for various industries, following international and national standards. Its products are popular in domestic and Southeast Asian markets. The company specializes in purification workbenches, air showers, fume hoods, and biological safety cabinets. With a commitment to quality, innovation, and customer satisfaction, Zhejiang Sujing continues to serve global clients with competitive pricing and reliable service. 

Single Sofa Bed

Auxford furniture , https://www.auxfurniture.com