1521 Air Drier

2024-09-26 by Cherry

Introduction

In the modern manufacturing industry, the die-casting machine 

is one of the important equipment. Its stable performance and

efficient operation play a vital role in the production 

efficiency and product quality of enterprises. Die-casting

machine is widely used in the molding production of metal

alloys such as aluminum and zinc.

In the operation process of die die-casting machine, the

application of air dryer is an indispensable link, and it

is essential to maintain a good production environment.

As an efficient drying equipment, the 1521 air dryer can 

effectively reduce air humidity, improve metal fluidity and

mold life in the casting process, and thus improve the 

quality of finished products.

This article will introduce the application of the 1521 air dryer

in die casting machine in detail, and explore its importance,

working principle, advantages, and improvement of die-casting

machine performance.

Working principle of die casting machine

The die-casting machine injects molten metal into the mold at 

high pressure and quickly cools it to form. In this process, 

changes in temperature and humidity will directly affect the 

fluidity and molding effect of the metal. If the ambient humidity

is too high, it may cause uneven cooling of the metal and 

even defects. Therefore, controlling the humidity in the air 

is crucial to ensure the quality of die-casting products.

The function of an air dryer

During the operation of the die-casting machine, compressed air

is widely used in various links, such as the driving cylinder, 

controlling valve, cooling system, etc. However, air usually

contains a certain amount of moisture and impurities. If 

it is used directly without treatment, it will seriously impact

the die-casting machine's performance and life.

1. Impact of moisture

The moisture in the air will condense into water droplets in 

the compressed air system and these water droplets may enter 

various parts of the die-casting machine, causing problems such 

as rust, corrosion, and blockage of the equipment. For example,

water droplets entering the cylinder will affect the sealing 

performance of the cylinder and reduce its working efficiency;

entering the control valve will cause valve failure and affect

the normal operation of the equipment.

The main function of the 1521 air dryer is to remove moisture

from the air. It reduces the dew point temperature of the air 

by physical or chemical methods, thereby achieving a drying

effect. For die-casting machines, dry air can:

2. Improve mental fluidity: Dry air can effectively reduce the 

resistance of metal when it is injected into the mold, improve

fluidity, and ensure the accuracy of molding.

Extend mold life: Moisture may cause oxidation and corrosion

of the mold, shortening its service life. Dry air can slow 

down this process and protect the mold.

3. Reduce defect rate: During the die-casting process, moisture

may cause defects such as pores and cracks, affecting the quality

of the finished product. After using an air dryer, these problems

are greatly reduced.

Impact of impurities

Impurities in the air include dust, oil, particulate matter, etc.

These impurities will enter the system of the die-casting machine

with compressed air, causing wear and damage to the precision 

parts of the equipment. For example, impurities entering the 

hydraulic system will contaminate the hydraulic oil and reduce

the working performance of the hydraulic system; entering 

the electrical control system will affect the normal operation

of electronic components and even cause equipment failure.

Therefore, to ensure the normal operation of the 

die-casting machine and extend its service life, the compressed

air must be dried and purified. The air dryer is a device 

specifically used to remove moisture and impurities from 

the air.

Technical advantages of the 1521 air dryer

The 1521 air dryer adopts advanced drying technology and 

has the following significant advantages:

1. High efficiency: It can quickly reduce air humidity and 

maintain a stable working environment.

2. Energy-saving design: Compared with traditional drying 

equipment, 1521 performs better in energy consumption, 

helping enterprises reduce production costs.

3. Easy to maintain: The design considers convenience, with 

low maintenance costs and reduced downtime.

4. Intelligent control: Equipped with intelligent monitoring 

system, it can detect air humidity in real-time, automatically

adjust the operating status, and improve the use efficiency.

Working principle of the 1521 air dryer

1521 air dryer adopts the adsorption drying principle, which is

mainly composed of two adsorption towers, switching valves,

controllers and other parts.

The working process is as follows:

1. Adsorption process

When compressed air enters an adsorption tower, the adsorbent

in the tower (usually activated alumina or molecular 

sieve) will adsorb moisture and impurities in the air, so

that the dried air enters the die-casting machine system 

through the outlet valve.

2. Regeneration process

When one adsorption tower is saturated with adsorption, 

the controller will automatically switch the valve to 

introduce compressed air into another adsorption tower for

adsorption, and regenerate the saturated adsorption tower 

at the same time. 

The regeneration process usually adopts heating regeneration 

or heatless regeneration. By heating or reducing the pressure

of the adsorbent in the adsorption tower, the adsorbed moisture

and impurities are released and then discharged through the 

exhaust valve.

3. Switching process

The two adsorption towers alternately carry out the adsorption

and regeneration process to ensure the continuous supply 

of dry compressed air to the die-casting machine.

Advantages of 1521 air dryer

1. Efficient drying performance

The 1521 air dryer adopts advanced adsorbents and an optimized

design, which can effectively remove moisture and impurities

in the air, so that the dew point of the dried air reaches

below - 40℃, meeting the high requirements of the die-casting

machine for compressed air.

2. Stable and reliable performance

The air dryer has the characteristics of a compact structure,

stable operation and high reliability. Its adsorption tower

is made of high-strength materials and can withstand high

pressure and temperature changes; the switching valve adopts

high-quality pneumatic components, which are accurate and 

reliable; the controller adopts advanced microcomputer control

technology, which can realize automatic switching, fault diagnosis

and other functions.

3. Energy saving and environmental protection

1521 air dryer adopts heatless regeneration or micro-heat

regeneration, which can greatly reduce energy consumption

and save energy compared with traditional heating regeneration.

At the same time, the regeneration process of the air dryer

does not produce any pollutants and is environmentally friendly.

4. Easy to maintain

The air dryer has a simple structure and is easy to maintain.

The replacement cycle of the adsorbent is relatively long, 

generally 1-2 years; the maintenance of components such as 

switching valves and controllers is also relatively simple,

and only regular inspection and cleaning are required.

Application example of 1521 air dryer in die-casting

machine

To better illustrate the application effect of 1521

air dryer in die-casting machine, a practical application 

the case is introduced below.

A certain automobile parts manufacturing company has multiple

die-casting machines for the production of automobile engine

cylinder blocks, cylinder heads, and other parts. Before using

the 1521 air dryer, the company's die-casting machines often 

had equipment failures caused by excessive moisture and impurities

in the compressed air, such as poor cylinder sealing, control 

valve failure, hydraulic system pollution, etc., which seriously

affected production efficiency and product quality.

To solve these problems, the company introduced the

1521 air dryer and carried out a comprehensive transformation 

of the compressed air system. After a period of operation, the

company's die-casting machines have been running stably, equipment

failures have been significantly reduced, and production efficiency

and product quality have been significantly improved. The 

specific performance is as follows:

1. Reduced equipment failure rate

After using the 1521 air dryer, the cylinder sealing performance

of the die-casting machine has been significantly improved, 

the control valve action has become more accurate and reliable, 

and the pollution problem of the hydraulic system has been 

effectively solved. The equipment failure rate has been reduced

from 5-6 times per month to 1-2 times per month, greatly reducing

equipment maintenance time and cost.

2. Improved production efficiency

Due to the reduction of equipment failures, the downtime of 

the die-casting machine has been greatly shortened, and production 

efficiency has been significantly improved. The company's 

production plan can be completed on time, meeting customer needs.

3. Improved product quality

Dry and clean compressed air ensures normal operation 

of the die-casting machine, making the surface quality of 

the casting smoother and denser, and the internal structure

more uniform. The scrap rate of the product has been reduced

from the original 5% to below 2%, which improves the quality

and market competitiveness of the product.

Conclusion

In summary, the application of 1521 air dryer in die-casting

machine is of great significance. It can effectively remove

moisture and impurities in compressed air, ensure the 

normal operation of the die-casting machine and extending its

service life, and improve production efficiency and product

quality. In modern industrial production, with the increasing

requirements for product quality and production efficiency, 

the application of air dryers will become more and more 

extensive.

It reflects the high attention paid by modern manufacturing

industry to environmental control. By reducing the air humidity,

it not only improves the metal fluidity and finished product 

quality in the die-casting process, but also effectively extends 

the life of the mold. With the continuous advancement of

manufacturing technology, the role of air dryers will become

more and more important, and it is worthy of attention and 

investment from major companies.

Therefore, die-casting machine manufacturers must choose an

air dryer with excellent performance.

If you want to improve the production efficiency of die-casting 

machines and reduce the defect rate, the 1521 air dryer is 

undoubtedly your indispensable choice.

We are LK Die die-casting machine Authorized Official Agent 

for Egypt(EGY),Saudi Arabia(KSA),United Arab Emirates(UAE)

The Islamic Republic of Iran(Iran),Qatar(QAT),

The State of Kuwait(Kuwait), The Middle East 

Contact us to discuss the details of your project and we'll 

be happy to provide you with a review and quote.

Learn more about our die-casting services through: 

https://www.zazdiecasting.com/ and https://ae.zazdiecasting.com/