New type of gun washing water recycling system
The gun cleaning water recovery system adopts the "distillation purification + condensation recovery" process to treat the gun cleaning water (mainly composed of organic solvents such as ethanol and ethyl acetate) generated during the cleaning process of packaging and printing equipment in real time. Through precise filtration and molecular sieve separation technology, the recovered purity can reach over 95% and can be directly reused in the cleaning process of the production line.
A certain packaging company in Liaoning Province processes over 200 tons of waste solvents annually. By purchasing the calstar Kuanbao gun washing water recovery system, it has saved more than 1.5 million yuan in costs. In addition to direct economic benefits, it also avoids the risk of production suspension caused by excessive VOCs, and at the same time, it gains a premium for green factory certification.
The "Technical Specifications for Pollution Prevention and Control in the Packaging and Printing Industry" recently released by the Ministry of Ecology and Environment clearly stipulates that starting from 2026, enterprises with an annual solvent consumption exceeding 10 tons must be equipped with recovery devices. The director of the Circular Economy Professional Committee of the China Packaging Federation pointed out: "The recycling of gun washing water has become a key indicator for ESG evaluation in the industry. It is expected that the penetration rate will exceed 50% in the next three years."
Customer site

calstar A60Ex Solvent recovery machine
V60 Vacuum pressure reducing device

High-temperature bags
for solvent recovery
It is easy to clean. After each recycling, just take out the high-temperature bag and the residue can be cleaned up







