Vertical Laminar Flow Clean Workstation

The vertical laminar flow clean bench draws air in through a top-mounted fan, which is then filtered through a high-efficiency filter to form a vertical unidirectional airflow, expelling contaminants from the operating area downward. It is used to provide a local dust-free environment and is suitable for operations requiring high cleanliness, such as sample preparation and microbiological experiments.
Selection
Select the size of the workspace based on the dimensions of the items being handled, determine the need for negative pressure protection according to the biosafety level, choose material corrosion resistance based on the type of experiment, match filter efficiency with environmental cleanliness, consider equipment durability in relation to frequency of use, and confirm fan power based on the available power supply conditions.

Terms

Standards

Instruments

The quasi-closed Glass damper prevents external airflow from penetrating, the double-gear adjustable air volume system maintains the wind speed of 0.3~ 0.6m/s, the 304 stainless steel experimental area is resistant to corrosion and easy to clean, and the independent circulation air duct improves the dust-free effect.

$ 872.00

Quasi-closed Glass damper to prevent external air penetration, dual-gear adjustable air volume system to maintain 0.3~ 0.6m/s wind speed, 304 stainless steel integrated table corrosion resistance easy to clean, noise ≤ 62dB.

$ 1088.00

Vertical unidirectional flow design prevents external gas penetration, adjustable wind speed of 0.3 to 0.6m/s, noise ≤ 60dB, equipped with ultraviolet sterilization and independent lighting, easy and safe operation.

$ 601.00

The quasi-closed Glass damper prevents external airflow from penetrating, the two-speed adjustable air volume system maintains the wind speed of 0.3~ 0.6m/s, the 304 stainless steel integrated molding experimental area is resistant to corrosion and easy to clean, and the noise is less than or equal to 62dB (A).

$ 704.00

Quasi-closed Glass damper to prevent external air penetration, dual-gear adjustable air volume system to maintain 0.3~ 0.6m/s wind speed, 304 stainless steel integrated molding experimental area corrosion resistance easy to clean, equipped with independent five-hole socket and operating gloves mouth.

$ 858.00

The vertical unidirectional flow design effectively prevents external gas from penetrating, and is equipped with an adjustable fan to achieve 0.3 to 0.6m/s wind speed regulation. The cleanliness level reaches 100 levels, and the noise is controlled below 60dB. The operation door is designed with a counterweight mobile design for easy positioning.

$ 891.00

The quasi-closed Glass damper prevents external air flow from penetrating, the two-speed adjustable air volume system maintains the wind speed of 0.3~ 0.6m/s, the 304 stainless steel integrated molding experimental area is resistant to corrosion and easy to clean, and the cleanliness level reaches 100.

$ 727.00

The vertical unidirectional flow design prevents external gas from penetrating, with a cleanliness level of 100, an adjustable average wind speed of 0.3 to 0.6m/s, and a noise of less than 60dB, making it easy and safe to operate.

$ 1356.00

Vertical manifold design with adjustable wind speed system, the working wind speed can be adjusted from 0.3 to 0.6m/s, the cleanliness level can reach 100, compact and portable, and equipped with infrared remote control operation.

$ 365.00

Vertical unidirectional flow design prevents external gas penetration, with a cleanliness level of 100, an adjustable average wind speed of 0.3 to 0.6m/s, and independent lighting and UV Lamp, making it easy and safe to operate.

$ 1400.00

Quasi-closed Glass damper prevents external airflow from penetrating, dual-gear adjustable air volume system maintains 0.3~ 0.6m/s wind speed, 304 stainless steel countertop is resistant to corrosion and easy to clean, and the noise is as low as 62dB (A).

$ 436.00

Vertical unidirectional flow design to prevent external gas penetration, equipped with adjustable wind speed system, clean level 100, average wind speed 0.3-0 m/s adjustable, low noise below 60dB, easy and safe operation.

$ 1229.00

Quasi-closed Glass damper to prevent airflow penetration, dual-gear adjustable air volume system to maintain 0.3~ 0.6m/s wind speed, 304 stainless steel countertop corrosion resistance easy to clean, noise ≤ 62dB (A).

$ 800.00

The quasi-closed Glass damper prevents external air flow from penetrating, the dual-gear adjustable air volume system maintains a stable air speed, the 304 stainless steel countertop is resistant to corrosion and easy to clean, and the embedded Glass is convenient for observing the experimental process.

$ 1161.00

Quasi-closed Glass damper to prevent external air penetration, dual-gear adjustable air volume system to maintain 0.3~ 0.6m/s wind speed, 304 stainless steel experimental area corrosion resistance easy to clean.

$ 800.00

Articles

Selection of Clean Bench: Methods for Determining Airflow Direction and Cleanliness Class
This article primarily discusses the selection methods for clean benches, focusing on two aspects: first, determining the airflow direction based on experimental requirements—vertical laminar flow is suitable for protecting the operator, while horizontal laminar flow is ideal for protecting samples; second, selecting the cleanliness level according to ISO standards, typically requiring ISO Class 5.
Method for determining the dynamic viscosity of varnish using a falling ball viscometer
This article introduces a method for measuring the dynamic viscosity of varnish using a falling-ball viscometer. It is based on Stokes' law, which calculates viscosity by measuring the time required for a standard small ball to fall a fixed distance in a vertical glass tube filled with varnish.
Pull-off Adhesion Tester for Quantitative Measurement of Varnish Adhesion.
The pull-off adhesion tester quantitatively measures the adhesion strength between a varnish coating and the substrate by vertically pulling off a test column. It is essential to ensure proper substrate preparation, complete curing of the coating, and the use of a suitable adhesive during testing.
Adhesion Tester Pull-Off Method for Determining Adhesion Strength of Varnish
This article introduces the test method for measuring the adhesion strength of varnish using the pull-off method. It involves adhering test cylinders to the coating and substrate with adhesive, then vertically pulling them apart with an instrument to record the maximum pulling force and calculate the adhesion strength.
Internal Bond Strength Scott Tester for evaluating interlayer bonding force of paper.
This article introduces the method of evaluating the interlayer bonding strength of paper using a Scott tester. The interlayer bonding strength affects the printing and mechanical properties of paper. During testing, the instrument peels the paper vertically through an adhesive test head, records the energy required for separation, and calculates the internal bond strength.
Application of Paperboard Burst Strength Tester in Packaging Materials
The paperboard bursting strength tester is a detection device used to measure the ability of packaging materials such as paperboard to resist rupture under vertical pressure. During the test, the sample is clamped between annular clamps, and increasing pressure is applied via hydraulic or pneumatic means until rupture occurs. The maximum pressure value is recorded as the bursting strength.
Paper Thickness Gauge for Determining Paper Thickness and Apparent Density
This article explains how to measure paper thickness and apparent density using a paper thickness gauge. Thickness refers to the vertical distance between the two sides of paper under standard pressure, while apparent density is calculated by dividing the basis weight by the thickness, reflecting the compactness of the paper.
Standard Operating Procedure for Packaging Drop Tester
The packaging drop tester is used to evaluate the impact resistance of transport packages during vertical drops. Before operation, it is necessary to check the safety of the equipment, calibrate the drop height, and prepare the test specimens according to standards.
Sand Falling Test Apparatus for Measuring the Wear Resistance of Powder Coatings
The sand falling test instrument determines the wear resistance of powder coatings by simulating sand particle impact. During the test, abrasive material falls vertically from a specified height, continuously scouring the coating until the substrate is exposed. The wear resistance is evaluated based on the mass of abrasive material consumed.
Pull-off adhesion tester quantitatively measures bond strength.
The pull-off adhesion tester measures the bonding strength between coatings, linings, and substrates by applying a vertical tensile force.
Pull-off testing for interlayer adhesion of multilayer coating systems.
This article introduces the pull-off method for testing the interlayer adhesion of multilayer coating systems. The test involves vertically bonding a pull-off head to the coating surface and applying a pulling force until the coating separates, measuring the required force to evaluate adhesion strength.
Sag resistance and leveling in constructability evaluation
This article primarily discusses how to balance the two key properties of sag resistance and leveling during the application of materials such as coatings and adhesives. Sag resistance refers to the material's ability to resist sagging due to gravity on vertical surfaces, while leveling refers to the material's ability to automatically smooth out its surface after application.
Standard Operating Procedure for Zero Calibration and Substrate Calibration of Coating Thickness Gauges
This article introduces two key calibration methods for coating thickness gauges: zero-point calibration and substrate calibration. During operation, it is important to ensure that the probe is perpendicular, pressure is applied evenly, and regular calibration and recording are maintained. These steps effectively enhance measurement accuracy and meet industry standard requirements.
What are the differences between horizontal airflow and vertical airflow in a clean bench?
Purification workbenches primarily employ two types of air supply methods: horizontal and vertical. In horizontal air supply, the airflow is parallel to the work surface, while in vertical air supply, the airflow moves from top to bottom, forming a laminar barrier. The selection should be based on a comprehensive consideration of experimental needs, sample characteristics, and safety requirements.
The softness tester can show a data difference of up to 30% when measuring paper hand-feel samples taken from different directions.
This article mainly discusses that when testing the softness of paper, if samples are taken along different directions, such as the machine direction (longitudinal) and the cross direction (transverse), the measured data can vary significantly, sometimes by as much as 30%.