Shock Absorber- China Suppliers Manufacturers Factory

Advantages of pneumatic components:  

1. Pneumatic device is simple in structure, light and easy to install and maintain.  The medium is air, which is not easy to burn compared with the hydraulic medium, so it is safe to use.  

2, the working medium is inexhaustible air, air itself does not cost money.  Exhaust treatment is simple, no pollution to the environment, low cost.  

3. It is very easy to adjust the output force and the working speed.  The speed of the cylinder is generally less than 1M/S, which is faster than the speed of the hydraulic and electrical modes.  

4, high reliability, long service life.  The service life of effective action of electrical components is about one million times, and the life of the general solenoid valve is more than 30 million times, some good quality valves more than 200 million times.  

5, air compressibility can store energy, to achieve centralized air supply.  The energy can be released in a short time to obtain a high speed response in intermittent motion.  It can be buffered.  Strong adaptability to impact load and overload.  Under certain conditions, the pneumatic device can be self-sustaining.  

6, full pneumatic control is with fireproof, explosion-proof, moisture-proof ability.  Compared with hydraulic mode, pneumatic mode can be used in high temperature occasions.  

7, because the air flow loss is small, compressed air can be centralized supply, long-distance transportation.

Disadvantages of pneumatic components  

1, because the air has compressibility, the speed of the cylinder is subject to changes in load.  This defect can be overcome by gas-liquid linkage.  

2. When the cylinder is moving at low speed, the low speed stability of the cylinder is not as good as that of the hydraulic cylinder due to the large proportion of friction in the thrust.  

3, although in many applications, the output force of the cylinder can meet the work requirements, but its output force is smaller than the hydraulic cylinder.  

Air source treatment is the component working by using  the pressure of the gas or the expansion of the force.  It Includs air filter, pressure regulating valve, oil lubricator, etc.  Pneumatic products are widely used in metallurgical mechanical and electrical, construction, transportation equipment, home appliances, light industry, machine tools, medical, packaging industry and other industries automation production.  However, because the compressed air can not be directly used t, it contains a certain amount of moisture, oil and dust. After compression, the air temperature is as high as 140-170℃, and some of the water and oil have become gaseous.  Therefore, it is necessary to use the compressed air after purification treatment to run the mechanical equipment.  

The air source treatment includes air filter, pressure reducing valve and oil lubricator. Some companies’ solenoid valve and cylinder can do oil-free lubrication (lubricating air by grease), which does not need to use oil mist device.  The filtration degree is generally 50-75μm, the pressure regulating range is 0.5-10MPa, if the filtration accuracy is 5-10μm, 10-20μm, 25-40μm, and the pressure regulating is 0.05-0.3Mpa, 0.05-1Mpa three large pieces of no pipe connected components called three coupling.  The three components are indispensable air source devices in most pneumatic systems. They are installed near the gas equipment and are the final guarantee of compressed air quality.  The installation sequence of the three pieces is air filter, pressure reducing valve and oil mist device according to the inlet direction.  The combination of air filter and pressure reducing valve are called pneumatic coupling.  We can also set air filter and pressure reducing valve together, it becomes a filter regulator (function and air filter and pressure reducing valve combined with the use of the same). Oil mist in the compressed air is not allowed in some occasions. It is necessary to use the oil mist separator to filter out the oil mist in the compressed air.  In summary, these components can be selected as needed, and they can be used in combination.  The air filter is used to clean the air source. It can filter the moisture in the compressed air and avoid the moisture entering the device with the gas.  The pressure reducing valve can stabilize the pressure of the air source, so that the air source is in a constant state, and the damage to the hardware such as the valve or actuator can be reduced due to the sudden change in the air pressure of the air source.  The filter is used to clean the air source. It can filter the water in the compressed air and avoid the water entering the device with the gas.  The oil mist can lubricate the moving parts of the machine body, and can lubricate the parts that are not convenient to add lubricating oil, thus greatly prolonging the service life of the machine body.

    Time is flying, in an instant, half a year of 2020 has passed. Enterprises and employees even all of the world have undergone a new test in the past six months due to the COVID-19.

    In the beginning of 2020, affected by the epidemic situation, the company’s commencement date has been postponed again and again. With the support and one month’s arduous straggle of company’s leaders, company finally started operation on 22 February successfully.

 

  In order to meet the supply needs of customers, we have been continuing to work overtime with quick respond to deliver high-quality products to customers.

The expert review meeting named “Internal Pilot Type Precision regulator” of Zhejiang manufacturing group standard, which was leading by our company successfully held in April.

Affected by the epidemic situation, the safety production monthly meeting of the company was held on May 4. But we have never relaxed our vigilance about safety in production.

On June 23, 2020, Ningbo Fenghua District pneumatic industry association youth branch held a salon activity in our company. We have exchanged many acknowledge with Yueqing and Fenghua’s ” HYDRAULIC-PNEUMATIC MAN” as well.


Even though the half year of 2020 is over, in the following six months, let’s keep going on with high enthusiasm for work.

WE PASS TOGETHER !

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Post time:        Jul-16-2020

Due to the Dragon Boat Festival is coming, to thank all the staff has always made their hard efforts for the development of the company, 12th June afternoon, BLCH prepares

Dragon Boat gifts for employees, makes staff deeply feel the enterprise family’s care and warmth.

On the 13:30 afternoon, distributing work starts. And we cooperate with each other, in handling and distribution, in order to let each department’s colleagues get gift: one box of rice dumplings and one box of yogurt. Laughter is permeated with the atmosphere of joy everywhere.

Boxes full of love and bless get into the hands of the every employee. Rice dumplin is Chinese traditional food, not only for the taste, it brings more wishes!

Solenoid valve selection should first follow the four principles of safety, reliability, applicability, economy, followed by six aspects of the field conditions (namely, pipeline parameters, fluid parameters, pressure parameters, electrical parameters, mode of action, special requirements to choose).

Selection basis:

 

First, according to the pipeline parameters to select solenoid valve: diameter specification (i.e.), interface mode according to the field pipe diameter size or flow requirements to determine the size of diameter 0.Interface mode, general > to choose flange interface,< can be freely selected according to user needs.

 

Second, according to the fluid parameters of the solenoid valve: material, temperature groupCorrosive fluid: should choose corrosion resistant solenoid valve and all stainless steel; Edible ultra-clean fluid: food grade stainless steel solenoid valve should be selected.High temperature fluid: the solenoid valve made of high temperature resistant electrical materials and sealing materials should be selected, and the type of piston structure should be selected.Liquid state: large to gaseous, liquid or mixed state, especially when the diameter is larger than the order must be distinguished., fluid viscosity: usually in the following can be arbitrarily selected, if more than this value, to choose high viscosity solenoid valve.

 

Third, according to the pressure parameters to choose the solenoid valve: principle and structure varietiesNominal pressure: this parameter and other general valve meaning is the same, is based on the nominal pressure of the pipelineWorking pressure: if the working pressure is low, it must choose direct motion or step by step direct motion principle; When the minimum working pressure difference is above, direct acting type, step by step direct acting type and pilot type can be selected.

 

Fourth, electrical selection: voltage specifications should be preferred as far as possible, more convenient.

 

Fifth, according to the length of continuous working time to choose: normally closed, normally open, or sustainable electricityWhen the solenoid valve needs to open for a long time, and the continuous time is more than the closing time should be used normally open.If the open time is short or open and close time is not much, then choose normally closed type.However, some working conditions for safety protection, such as furnace and kiln flame monitoring, can not choose normally open, should choose long-term electrified type

 

Sixth, according to the environmental requirements to select auxiliary functions: explosion-proof, check, manual, waterproof fog, water spray, diving explosive environment: the corresponding explosion-proof solenoid valve must be selectedWhen there is a backflow of fluid in the tube, the solenoid valve with check function can be selected.When you need to manually operate the solenoid valve on site, you can choose the solenoid valve with manual function.Open air installation or dust more occasions should choose waterproof, dustproof varieties (protection grade above).

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Post time:        Oct-16-2021

CONGLATULATION!

The "Internal Pilot Guide of the Precision Pressure Reducing Valve" standard  which was lead drafted by our company has been approved by the Zhejiang Product Quality Association as the "Quality Criterion" for  the zhejiang manufacturing  groups' standard, the Code Number is T/ZZB 1619-2020, which will be implemented from July 30, 2020.

One of the important parts of the pneumatic components is the cylinder. In order to ensure the normal use of the cylinder and avoid unnecessary situations, for the use of the pneumatic components and cylinder, let’s check the right way to use cylinder. When using the cylinder, the air quality requirements are very high. Clean, dry compressed air should be used. The air should not contain organic solvents, synthetic oils, salts, corrosive gases, etc., in order to avoid bottle and valve failure.