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2022-11

Why do electric sweepers use maintenance-free dry batteries?

The quality of the battery in an electric sweeper largely determines the equipment’s operating costs. How long a set of batteries can actually last depends on the specific usage conditions at the customer’s site, which is why there has never been a definitive answer to this question. Currently, most electric sweepers on the market use maintenance-free dry batteries. So, what exactly are the advantages of these batteries? First, they have low costs, are easy to replace, and require no regular maintenance. A set of 48V branded batteries typically costs around 6,000 yuan to replace, with a service life ranging from two and a half to three years. Second, they deliver a high starting current, enabling the battery to thoroughly clean up ground debris such as leaves, dust, and small stones in a single pass. Third, they have a longer lifespan than conventional batteries and provide stable voltage, offering some protection to the equipment’s motor. Fourth, they have strong resistance to overcharging. Metengqi generally advises customers to operate the sweeper during the day and let it recharge automatically at night. Once fully charged, the battery will automatically cut off power, eliminating the need for constant supervision. In summary, the ideal battery for an electric sweeper is a maintenance-free dry battery. Brand-name batteries offer up to 600 float charge cycles. Based on Metengqi’s many years of sales and usage experience, when used outdoors, the sweeper doesn’t need to operate on rainy or snowy days. Moreover, a single full charge can last about eight hours, so there’s no need to charge and discharge the battery every day.

2022-11-22

28

2022-11

The Importance of Industrial Vacuum Cleaners in Manufacturing

Industrial vacuum cleaners are indispensable in certain manufacturing sectors, such as the electronics industry and the food processing industry. The state has stringent GMP standards for the pharmaceutical industry, and one of the key assessment criteria and indicators is cleanliness. Thanks to their specialized functions, industrial vacuum cleaners have become an essential part of production machinery that no manufacturing enterprise can afford to do without. For certain industries—such as electronics and mold manufacturing—industrial vacuum cleaners effectively safeguard the cleanliness of the production environment, thereby ensuring product quality. After all, the cleanliness of these enterprises’ production spaces directly affects product quality and even impacts the product’s pass rate, playing a crucial role in reducing costs, improving product quality compliance, and lowering the rate of defective products. As the economy develops and industrialization deepens, issues related to workers’ labor protection and environmental pollution are receiving increasing attention from both the state and government authorities. The ISO 14000 environmental management system certification is a prime example: the state now imposes more rigorous and standardized requirements. Under these regulations, pollutants must be generated and removed simultaneously, which in turn creates broader market opportunities and room for growth for industrial vacuum cleaners. Meanwhile, along with economic development, China has not only introduced advanced production technologies but also a large number of high-tech production devices. The relatively high cost and price of these devices have prompted more enterprises to pay closer attention to equipment maintenance. The introduction and adoption of industrial vacuum cleaners enable companies to achieve greater savings at lower costs, thus helping them cut expenses significantly.

2022-11-28

28

2022-11

How to maintain a push-type sweeper and extend its service life?

Public environmental hygiene has become increasingly important in modern society, and professional experts are now responsible for its management. For many public spaces that fail to meet hygiene standards, certain penalties will be imposed. As a result, such environments are more likely to adopt high-tech products. Currently, a large number of push-type floor scrubbers are being put into use. To ensure these machines perform optimally, we’d like to share some maintenance tips. --- ### I. Maintenance of the Brush Disc Every component of a mechanical product works in tandem with others—no part is inherently more or less important. However, there is still a relative distinction among them. In the case of the brush disc on a push-type floor scrubber, it’s crucial to pay close attention to its maintenance during operation. --- ### II. Maintenance of the Squeegee When operating a push-type floor scrubber, if users notice a decline in cleaning performance, they should check whether the squeegee is experiencing any operational issues. The key points to inspect include the condition of the rubber strip and whether there’s excessive dirt buildup inside the squeegee. Therefore, if you want your push-type floor scrubber to have a longer service life, it’s essential to carry out the above-mentioned maintenance tasks diligently. Only then can you ensure that the machine lasts longer and performs reliably. For more details on special offers, please visit www.qingqinyu.com.

2022-11-28

06

2022-12

What basic precautions should be taken when using a floor scrubber?

As the application scope of floor scrubbers expands, basic operational precautions have become a common concern among users. So, what are the essential things to keep in mind during the daily use of a floor scrubber? Next, the editor from Metech will share with you some key points to note when using a floor scrubber: 1. Before cleaning, perform a preliminary cleanup of the area to be cleaned—removing small stones, large debris, and other objects. Failure to do so may interfere with the operation of the water suction blade and could also prevent the floor scrubber from functioning properly if it gets damaged. 2. Deep grooves on the floor can affect the floor scrubber’s water-suction efficiency. If the machine is not in use regularly, avoid randomly starting the brush motor when the brush disc is in the raised position; otherwise, the brush disc might get automatically disengaged. 3. If the floor scrubber is going to be idle for an extended period, thoroughly clean both the wastewater tank and the clean water tank, open their lids, and let them air-dry completely. (For battery-powered floor scrubbers, remove the batteries first.) Then, cover the floor scrubber with a dust-proof cloth and store it properly. 4. Avoid using the floor scrubber for excessively long periods at a time. If the machine becomes overheated after 3-4 hours of continuous use, allow it to cool down for a while before resuming operation. This helps prevent the motor from overheating and getting burned out.

2022-12-06

06

2022-12

How industrial vacuum cleaners remove fine dust: a cleaning method.

Vacuum cleaners, as they are continuously used in human living environments and undergo mechanical manufacturing or renovation processes, inevitably lead to the dispersion of pollutant particles throughout the air. Therefore, in maintaining a healthy ecological environment, it is crucial to effectively remove these airborne pollutants. By doing so, we can significantly enhance air cleanliness and reduce the severity of pollution in both industrial settings and residential spaces. 1. Reducing exhaust emissions from vehicles: The use of air purification systems enables the absorption and adhesion of pollutant particles in the air, thereby improving the efficiency of atmospheric environmental filtration in dust removal processes. This also helps mitigate dust-related contamination during the production of various energy sources. 2. Incorporating high-performance evaporation equipment: Industrial vacuum cleaners, when used in high-temperature filtration processes, can substantially reduce pollution generated during transportation and energy production. In steel processing, they effectively minimize the occurrence of severe dust-related issues, enhancing the efficiency and stability of dust pollution removal and purification. 3. Expanding the capacity for particle absorption: In various powder-processing applications, these vacuum cleaners improve the effectiveness of fixed-dust filtration and cleaning technologies. They also help reduce the concentration of highly polluting particles emitted by mobile equipment, consistently ensuring cleaner and purer conditions in chemical fuel applications.

2022-12-06

06

2022-12

What is the working principle of an explosion-proof valve?

The PUW explosion-proof valve uses an imported expanded polytetrafluoroethylene (E-PTFE) microporous membrane as its primary waterproof and breathable material. The micropores of this imported E-PTFE membrane have diameters ranging from 0.1 to 10 μm, whereas the average diameter of air molecules is only 0.00036 μm, and that of water vapor is approximately 0.00047 μm. Meanwhile, the diameter of drizzle droplets is around 500 μm. Thus, the pore size of the E-PTFE membrane is more than 1,000 times larger than the diameter of gas molecules and thousands of times smaller than that of water droplets. Additionally, due to the extremely low surface energy of the E-PTFE membrane, under the effect of surface tension—where water molecules pull on each other—small water droplets quickly coalesce into larger beads on the surface of the E-PTFE membrane. As a result, gases can pass through smoothly, while liquid water cannot, giving the membrane excellent waterproof and breathable performance. When the internal pressure inside the battery pack enclosure is lower than the burst pressure setting of the explosion-proof valve, the valve operates in its normal working state (as shown in the right diagram). In this operating state, the valve functions similarly to conventional waterproof and breathable valves: gases inside and outside the cavity freely flow through the built-in E-PTFE waterproof and breathable membrane. Gas flows from the area of higher pressure to the area of lower pressure—meaning that when the internal pressure exceeds the external pressure, gas is released outward; conversely, when the internal pressure falls below the external pressure, gas enters the cavity, thereby achieving pressure equilibrium between the inside and outside. Under these conditions, the PUW explosion-proof valve acts as a waterproof and breathable valve (breathing valve). When the internal pressure inside the cavity reaches or exceeds the burst pressure setting of the explosion-proof valve, the valve enters its explosion-proof working state (as shown in the right diagram). At this point, the internal pressure pushes open the built-in piston, allowing gas to flow directly to the outside through an unobstructed channel, rapidly releasing the gas and swiftly reducing the internal pressure, thus preventing the cavity from bursting. In this state, the valve serves its explosion-proof function. Once the internal pressure drops below the burst pressure setting of the explosion-proof valve, the PUW explosion-proof valve immediately returns to its normal working state. Therefore, the PUW explosion-proof valve is not a single-use product; it undergoes 100% inspection both before shipment and during use to ensure that its explosion-proof functionality meets the required standards.

2022-12-06

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