How to start a -70℃ adsorption dryer correctly?

Oct 17, 2025

Hey there! I'm a supplier of -70℃ adsorption dryers, and I'm super excited to share with you how to start one of these bad boys correctly. These dryers are pretty awesome, especially when you need to get that super low dew point for your industrial processes. So, let's dive right in!

Pre - Start Checks

Before you even think about firing up your -70℃ adsorption dryer, there are a bunch of things you need to check. First off, take a good look at the physical condition of the dryer. Make sure there are no obvious signs of damage, like dents, cracks, or loose parts. A damaged dryer can not only affect its performance but also pose a safety risk.

Next, check the electrical connections. Ensure that all the wires are properly connected and there are no signs of fraying or exposed conductors. Loose or damaged electrical connections can lead to short - circuits, which are definitely not something you want.

Now, let's talk about the air intake. The air that goes into the dryer should be clean and free of large particles. That's where a Compressor Filter comes in handy. A good quality compressor filter can trap dust, dirt, and other contaminants, protecting the internal components of the dryer. Check the filter to make sure it's not clogged. If it is, you might need to replace it.

ad86826e4492af191b85959f456cb07Safety Valve

Another important component to check is the Compressor Safety Valve. This valve is designed to release excess pressure in case something goes wrong. Make sure it's working properly by giving it a visual inspection. Look for any signs of damage or corrosion. If you're not sure about its functionality, it might be a good idea to have it tested by a professional.

Lubrication

Some -70℃ adsorption dryers have moving parts that require lubrication. That's where Compressor Grease comes into play. Check the manufacturer's manual to see if your dryer needs lubrication and what type of grease is recommended. If it does, make sure to apply the right amount of grease to the appropriate parts. Too little grease can cause excessive wear and tear, while too much can attract dirt and cause blockages.

System Pressure

Before starting the dryer, you need to check the system pressure. The inlet air pressure should be within the range specified by the manufacturer. If the pressure is too low, the dryer might not work efficiently. On the other hand, if the pressure is too high, it can damage the dryer. Use a pressure gauge to measure the inlet air pressure and adjust it if necessary.

Starting the Dryer

Once you've completed all the pre - start checks, it's time to start the dryer. First, turn on the power supply. You'll usually see some indicator lights come on, which show that the dryer is getting power. Wait for a few seconds to let the system initialize.

Next, start the compressor. The compressor is responsible for compressing the air and sending it through the dryer. You might hear a bit of noise as the compressor starts up, but that's normal. Keep an eye on the pressure gauge to make sure the pressure is building up steadily.

As the air is compressed and enters the dryer, the adsorption process begins. The desiccant in the dryer will start to adsorb the moisture from the air, lowering the dew point. It might take a little while for the dryer to reach its optimal operating conditions. During this time, monitor the dew point and the outlet air temperature.

Monitoring and Maintenance

After the dryer has been running for a while, it's important to keep an eye on it. Check the dew point regularly to make sure it's within the desired range. If the dew point starts to rise, it could be a sign that the desiccant is saturated and needs to be regenerated or replaced.

Also, monitor the temperature of the dryer. If the temperature gets too high, it can damage the desiccant and other internal components. Make sure the cooling system is working properly to keep the temperature in check.

Regular maintenance is crucial for the long - term performance of your -70℃ adsorption dryer. Follow the manufacturer's maintenance schedule, which might include tasks like changing the filter, checking the lubrication, and inspecting the safety valve.

Troubleshooting

Even with proper pre - start checks and regular maintenance, you might encounter some issues with your dryer. If the dryer is not producing dry air, check the desiccant. It could be saturated or damaged. You might need to regenerate or replace it.

If you notice any strange noises or vibrations coming from the dryer, it could be a sign of a mechanical problem. Stop the dryer immediately and check for loose parts or damaged components.

If the pressure in the system is fluctuating, it could be due to a problem with the compressor or the pressure control valve. Check these components and make any necessary adjustments.

Contact for Purchase

If you're in the market for a -70℃ adsorption dryer or need any accessories like compressor filters, safety valves, or compressor grease, I'm here to help. Whether you have questions about starting the dryer, maintenance, or just want to learn more about our products, don't hesitate to reach out. We can provide you with high - quality products and expert advice to ensure your industrial processes run smoothly.

References

  • Manufacturer's manual of -70℃ adsorption dryers
  • Industrial air drying technology handbooks
  • Compressor maintenance guides