WOLTER Precision Machinery
In the background of today’s rapid development of green manufacturing and new material technology, Zhangjiagang WOLTER Precision Machinery Co., Ltd. stands out as a dazzling leader in the field of polymer crystallization and drying process in China by virtue of its excellent technological heritage and continuous pursuit of innovation.
As a witness and driving force in this field, WOLTER not only created a new chapter of multi-stage dehumidifying and drying system, but also won the awards of “High and New Technology Enterprise of Jiangsu Province” and “AAA Credit Enterprise of China” by virtue of the accumulation of more than 40 national patents, firmly establishing its position in the industry. This has solidly established its leading position and excellent quality image in the industry.

Facing the market’s escalating standards of high efficiency and environmental protection, WOLTER Precision Machinery is deeply aware of the limitations of the traditional process, so it is ingenious to develop a new process that integrates crystallization dehumidifying and drying with VOC odor removal.


The product highlights:
- Unique four-process integrated design, energy consumption is reduced by 40%.
- Innovative process to meet the standards, optimize the crystallinity, moisture content and VOC content, casting a new high level of material quality.
- Multi-stage dehumidifying technology, equipped with patented products, doubles the performance and halves the drying time.
- Precision fluid structure design, significantly improve the crystallinity by 30%, to ensure 100% material yield.
- The introduction of new non-return-air technology reduces the footprint by half and extends the service life of the equipment by two times.
It is worth mentioning that WOLTER Precision Machinery also innovatively introduced a new type of non-return air technology, which not only effectively reduces the footprint of the equipment, making it more compact and flexible, but also greatly extends the service life of the equipment and reduces the operation and maintenance costs of users. These technological advantages that make WOLTER’s advanced equipment in the PLA, PHA and other new bio-based materials, PET, PETG and other easily hydrolyzed materials, as well as PET bottle flakes, crushed materials and other recycled materials in the field of a wide range of applications for the material recycling and modification processing industry to provide efficient and environmentally friendly solutions.
Looking ahead, WOLTER Precision Machinery will not forget the original intention, continue to uphold the development concept of “innovation, high efficiency, environmental protection”, and continuously increase investment in technology research and development, deepen product innovation, and bring more subversive technological achievements in the field of polymer crystallization and drying process. The company is committed to working hand in hand with global partners to promote the green transformation and sustainable development of related industries, and to contribute to the realization of a better ecological environment.