Development path of ZWH (Ziwei Test)
Shenyang Ziwei Electromechanical Equipment CO.,Ltd. was established and started business.
The first domestic plastic pipe pressure resistance burst test bench was developed successfully.
The first domestic valve test bench was developed successfully.
Keep innovating.
The first domestic bathroom nozzle pressure flow test system was developed successfully.
Breakthrough field.
The pilot unit of experimental training base of National Building Energy Conservation Testing Center.
Why Choose Us
Professional Team
ZWH pays great attention to the development of employees, the company has developed to the present day, which has emboldened the loyalty, enthusiasm and creativity of all employees, thus forming a team with appeal, cohesion and centripetal force.
One-stop Solution
We can offer a range of services, from consultation and advice to product design and delivery. It is a convenience for the customers, as they can get all the help they need in one place.
Rich Experience
Dedicated to strict quality control and attentive customer service, our experienced staff is always available to discuss your requirements and ensure complete customer satisfaction.
After-Sale Service
Professional and thoughtful after -sales team, let you worry about us after -sales Intimate service, strong after -sales team support.
Air Filter Performance Test Bench
Air Filter Performance Test Bench is suitable for dry air filter assembly test, air filter element (Requires housing), according to JB/T 9755.5-2013, QC/T 32-2017, ISO 5011-2014.
【Applicable standards】 QC/T970-2014 Passenger car air filter technical specification
Filter Vibration Testing Machine
【Applicable standards】 ISO 5011:2014 Inlet air cleaning equipment for internal combustion engines and compressors-Performance testing
Fuel Filter Cleanliness And Pressure Drop Test Bench
Fuel Filter Cleanliness and Pressure Drop Test Bench is used for cleanliness and pressure drop-flow characteristics test of various types of automotive fuel filters, according to ISO 4020-2001.
Fuel Filter Element High Pressure Drop Resistance Test Bench
Fuel Filter Element High Pressure Drop Resistance Test Bench is used to test the pressure difference when the fuel filter element is structurally damaged, determine the filter element resistance to high pressure drop and the ability of bearing internal pressure of assembly, according to ISO 4020-2001.
Fuel Filter Hydraulic Pulse Test Bench
Fuel Filter Hydraulic Pulse Test Bench produced by SHENYANG ZIWEIHENG TESTING EQUIPMENT CO.,LTD is used to test the fatigue life of the filter under a certain pulse pressure. With computer control, it can sample pressure, temperature, waveform, impulse number in real time.
Fuel Filter Water Separation Efficiency Test Bench
【Applicable standards】 ISO 4020-2001 Road vehicles-Fuel filters for diesel engines-Test methods ISO 16332-2018 Diesel engines-Fuel filters-Methods for evaluating fuel/water separation efficiency
Fuel Filter Filtration Efficiency And Life Test Bench
Fuel Filter Filtration Efficiency and Life Test Bench is used to determine the ability of fuel oil filter to filter test impurities under specified test conditions, it represents the relative percentage of test impurities filtered by the filter and the added test impurities;
Filter Bubble Method is an indispensable testing equipment for filter material, filter element and filter manufacturer. The principle is that by pressurizing to one side of the sample, the gas overflows from the liquid surface on the other side of the sample, there is a single corresponding relationship between the pressure and the maximum aperture of the sample, the maximum aperture of the...
What is Air Filter Test Stand
The air filter performance test bench is a way to measure and detect industrial and domestic air filters.It is an important instrument for performance. Its principle is to measure and detect the presence of air in the filter. efficiency of harmful substances. The air filter performance test bench includes a test chamber and a control device equipment, automatic operation can be obtained through the settings of the control system, and the filter under test can be measured. air flow, quiet noise, temperature and corresponding equivalent clearance rate (MERV).
Benefits of Air Filter Test Stand
Particle Generation System
A system capable of generating a controlled aerosol of specific particle sizes and concentrations to challenge the filter.
Flow Control Capabilities
Precise control over the airflow rate to simulate real-world operating conditions and ensure consistency throughout testing.
Particle Sizing Instrumentation
High-resolution particle counters or sensors to detect and measure particle sizes before and after the filter, allowing for calculation of removal efficiency.
Automatic Sampling
Some models may include automatic sampling ports for collecting samples of the challenge aerosol and the filtered air for further analysis.
Modular Design
A flexible configuration that allows for easy upgrades or changes to accommodate different filter sizes and types.
Temperature and Humidity Control
Environmental chambers or enclosures to maintain constant temperature and humidity levels during testing.
Pleated Air Filter
Pleated air filters have folds or pleats that increase the filtration surface area. They are contained in a frame or a cartridge that maintains the pleated form of the filter.
They generally have high filtration efficiencies and greatly improve indoor air quality as they can capture microscopic pollutants such as odor, bacteria, pollen grains, molds, and other allergens.
Non-Pleated Air Filter
Non-pleated air filters have less filtration area. They are suitable for higher air pressures and volumetric flow rates. They are typically made of woven fiberglass or electrostatic material. They are cheaper than pleated air filters, however, they have a shorter service life and require more frequent replacement or cleaning. They are only effective in capturing large particles (e.g., dust, debris, insects); hence, non-pleated air filters are not suitable for users with respiratory illnesses or allergies.
Paper Air Filter
Paper is the most inexpensive but least durable filter media material. Paper air filters allow the separation of small particles by allowing air to pass through its fine pores. They are usually constructed by compacting woven wood pulp fibers together, then they are pleated to augment their mechanical strength and filtration efficiency. They are commonly used in automobile air cleaners, furnace filters, and indoor air purifiers.
Carbon Air Filter
Carbon air filters remove toxic gases (e.g., VOCs, sulfur dioxide, benzene), allergens, fumes, and odors (i.e., from smoking, painting) present in air by adsorbing them into the surface of the activated carbon's molecules. Carbon air filters are commonly used in air purifiers, range hoods (in conjunction with aluminum screens), bathroom fans, and microwaves.
Aluminum Air Filter
Aluminum air filters are made of multiple alternating layers of aluminum screens to maximize their filtering and particle retention capabilities. These filters are supported in a rigid carrier frame. They are used as a pre-filter in multi-stage air filtration systems to keep the large particles from reaching the main filter. They also can capture coolant mists and grease.
Aluminum air filters have high strength and durability and can be washed or cleaned and reused several times. They perform well in a variety of environments due to their corrosion and thermal resistance. Their applications include HVAC units, range hoods, automobiles, and more.
Fiberglass Air Filter
Fiberglass air filters provide better airflow in HVAC units and are suitable for capturing only large particles. Microscopic particles can still pass through the fiberglass filter medium. Hence, their filtration capabilities are suboptimal, and they are not recommended for spaces where occupants have respiratory problems and allergies, though the air quality is still safe for healthy individuals. They are much cheaper than pleated air filters but are replaced more frequently. Fiberglass air filters also require frequent maintenance since they are prone to clogging.
Plastic Air Filter
Plastic air filters inherently have high strength, durability, and chemical resistance. They are commonly made from woven HDPE, UHMW-PE, polypropylene, polyester, and PTFE fibers. Some plastic filters have electrostatic properties.

Install the filter and test chamber on the outer cover, put air containing pollutants (harmful gases) into the test chamber through a predetermined pressure range, and then these harmful gases will pass through the filter like air flow. And rely on the air filter performance test bench to detect the concentration of pollutants returned to the test box to calculate the filter resistance.
The Air Filter Test Stand production process is as follows
Mechanical Processing Of Aluminum Profiles And Iron Wires
Use aluminum cutting machines, manual cutting machines, etc. to cut aluminum profiles and iron wires Iron wire straightening machines, manual bending machines, manual punches, etc. bend and straighten aluminum profiles and iron wires, and then use a butt welding machine to weld and shape the aluminum profiles and iron wires to make the inner frame and outer frame.
Filter Material Cutting, Folding, Welding And Sewing
Use a manual cutting machine to cut the filter material into the appropriate size; then enter the medium-efficiency filter material folding machine, high-efficiency filter paper folding machine, non-partition filter paper folding machine and full servo folding machine.
Fold the filter paper into a wavy shape; then weld the multiple layers of filter paper together. Since the filter paper is made of plastic, it can be welded with ultrasonic waves; finally, use a sewing machine and pneumatic.The bag sewing machine sews the filter paper into shape.
Assemble And Install Built-in Accessories
Install the processed filter paper in the formed inner frame, use an aluminum foil corrugator to roll out ripples on the aluminum foil, and then assemble it with the filter paper.Install in the inner frame to increase the filter support strength, and then install other built-in accessories.
Lue-filled Fixed Filter Material
For high-efficiency filters, M-313 sealant needs to be filled in the joints of the filter frame and the contact points between the filter paper and the frame to enhance the filter's performance.To improve the sealing performance of the filter, first prepare the M-313 sealant in a mixer, then apply the prepared sealant to the filter manually, and then place it in the workshop.
Outer Frame Fixation
Use manual installation to install and fix the filter outer frame.
High Temperature Test
For high-efficiency filters, after production and molding, some products are randomly inspected and put into high-temperature testing furnaces and high-temperature curing furnaces for testing. The high-temperature resistance of the glue has been tested.
Several principles for choosing Air Filter Test Stand Test Stand
Each size of engine has a certain air intake volume. The air intake volume of the Air Filter Test Stand must be greater than the required air intake volume of the engine, and the bigger the better, but it must be consider the space of the layout.
Equipment type and working environment. The selected Air Filter Test Stand cannot simply consider the engine's air intake requirements, but also requires further analysis and calculation of the dust content.
Select the Air Filter Test Stand series. The appropriateness of the Air Filter Test Stand should be selected based on the engine air intake volume and the working environment of the equipment.
Select the specific model of Air Filter Test Stand. It should be based on the air intake required by the engine and the original air intake resistance requirements, and on the premise of meeting the rated air intake requirements.
Consider the specific installation location, connection method, etc.
Air Filter Test Stand is a commonly used filter with high filtration efficiency, easy installation and maintenance, and has been recognized by many users.
How to Maintain Air Filter Test Stand
During transportation and movement, the filter element should be handled with care and free from violent collisions and vibrations.
Special attention should also be paid to the installation of the Air Filter Test Stand. The installation direction cannot be wrong. The connection between the filter and the frame cannot leak, deform, be damaged, or have adhesive leakage. After the filter is installed, the inner wall must be cleaned.
Observe the filter carefully and wipe the filter with a white silk cloth to check for water leaks.
Before installing the Air Filter Test Stand, clean the room where the equipment is located and the equipment installation site to ensure that the indoor environment does not affect the Air Filter Test Stand.
When removing the filter packaging, it must be done on site. Check whether the packaging is damaged before disassembly, check the filter after disassembly, and check whether the appearance is damaged.
Measure whether the side diagonal of the filter meets the requirements, whether the outer frame is rusty, whether the product certificate and technical parameters are correct, etc.
When installing the filter, the direction of the arrow must be consistent with the direction of air flow. When installed vertically, the folds of the filter paper must be perpendicular to the ground.
Our Factory
Development path of ZWH (Ziwei Test)
1996: Shenyang Ziwei Electromechanical Equipment CO.,Ltd. was established and started business.
1997: The first domestic plastic pipe pressure resistance burst test bench was developed successfully.
The first domestic valve test bench was developed successfully.
1998: Keep innovating.
The first domestic bathroom nozzle pressure flow test system was developed successfully.
2001: Breakthrough field.
The pilot unit of experimental training base of National Building Energy Conservation Testing Center.

Certificate




FAQ
Hot Tags: air filter test stand, China, manufacturers, suppliers, factory, customized, buy, price, cheap, Filter Test Stand of Bubble Method, Filter Pressure Resistance Burst Test Stand, Air Filter Acoustic Performance Test Device, Filter Test Equipment, Gearbox Filter Pressure Drop Test Stand, Air Filter Performance Test Stand











