PET infrared crystallization dryer

Product Application

Lianda Infrared crystallization dryer is ideal for processors of flake, amorphous pellets and processors of polyester fiber. They provide continuous processing of PET flake, reducing moisture from over 3500ppm to less than 50 ppm in about an hour, compared to 5-6 hours for conventional system.

How the LIANDA IRD works

Moisture-laden PET regrind is fed into the rotary drum inlet of the IRD using a Vacuum feeding system.

Sensors monitor the material level in the supply hopper to ensure continuous operation and entire process is controlled by a SIEMENS touch panel PLC.

The rotating drum gently transports the material through the length of the drum using raised prism modules ensuring that all surface of the material are quickly exposed to the rays from the banks of IR heaters. This guarantees fast crystallization and drying.

Energy costs are reduced by up to 45% because infrared rays are so much more efficient at crystallizing/drying the material than a conventional desiccant system. The lower energy costs translate into an excellent return on investment.

There is no need for high volume, bulky desiccant dryers and hoppers that are required with conventional crystallizing systems. The traditional crystallizer unit, by necessity, has a height that sometimes requires plant modification. A separate dryer, with the throughput ca- pacity of the extruder, adds to the total cost and foot- print and greatly increases energy usage.

Main Features

1) One step process. 

2) One hour from over 3500ppm to less than 50ppm.

3) Energy savings up to 45%. Infrared lamps provide efficiency crystallizing/ drying in one hour, drastically reducing energy costs compared to conventional systems.

4) Up to 300% space savings.

5) Quick change-over and shutdown time.

6) Faster start-up.

7) Maintains critical resin properties. Short exposure to heat helps maintain critical properties including IV.

IR rays travel to the inside of plastic particles heating them from the inside-out. No energy is wasted directly heating the air.

Moisture inside the particle is rapidly heated and vaporized, forcing it outside of the particle.

A stream of air removes the vaporized moisture from the process.

Pre-sales Service

- Your inquire will be replied in 12hours
- View our factory and customer's factory in China
- Machine test support

After-sales Service

- Training installation method and usage
- Engineers available to service machinery overseas
- After one year guarantee, we provide spare part on cost price and technician's visiting maintenance service

We supply below necessary documents

- Machine layout

- Electricity diagram

- Machine certificate

- General manual book/maintenance book