Hangzhou Risheng Decontamination Equipment Co., Ltd. is a compressed air treatment (filtration, drying and purification) solution provider with own research and development (R&D), manufacturing, sales, and service capabilities. Risheng was established in 1992, and has constantly adhered to its development path of "Quality First and Continuous Innovation" ever since.
Risheng has become a technological innovation-based enterprise with the highest innovative capability, the most stable product quality and the best export performance in its industry within China. Risheng is also drafting and establishing several national and industrial standards. We had sold various types of high efficiency and energy saving compressed air treatment equipment manufactured by us all over China which including many large and medium-sized enterprises, defense industry enterprises and several foreign-funded high-end manufacturers such as Foxconn and Intel.
Comprehensive Solutions:
From R&D to sales and after-sales services, Risheng provides complete compressed air treatment solutions, ensuring customer satisfaction at every stage.
Proven Track Record:
With decades of experience and a strong focus on innovation, Risheng is a trusted partner for companies in various industries such as manufacturing, electronics, defense, etc.
Commitment To Sustainability
Rich is committed to providing energy-saving and environmentally friendly solutions to help companies reduce their carbon footprint and improve operational sustainability.
Global Presence
In addition to having a strong presence in China, Risheng has successfully expanded its export market, providing advanced compressed air treatment solutions to international customers.

Atlas Copco
Core products: FD series, FD VSD + variable frequency cold dryer
Core advantages: Global industrial compressed air faucet; Chinese market share is about 14.8% (first); pressure dew point is stable at 1.8±0.3℃, energy efficiency ratio is 4.2, noise <58dB (A); supports MES system docking; R513A environmentally friendly refrigerant with a recovery rate of 98%; first choice for high-end semiconductors, medicine, and precision manufacturing.
Ingersoll Rand
Core products: D series, IRN series cold dryers
Core advantages: China's market share is about 13.6% (second); strong overall compressed air system solution capabilities; outstanding energy efficiency optimization and low operating costs; complete large-scale industrial customer service network; industry benchmark for reliability and stability.
HY Purification, Hanyue
Core products: HY series, intelligent variable frequency cold dryer
Core advantages: Local leader with leading market share; founded in 1993, mature technology; king of cost-effectiveness, covering low- to mid-range markets; intelligent control, automatic defrosting, low energy consumption; dense service outlets across the country and fast response.
Shanli purification
Core products: SLAD series, energy-saving cold dryer
Core advantages: One of the earliest professional manufacturers of cold dryers in China; profound technical accumulation; strong product stability and low failure rate; high market share in East and South China; suitable for all types of air compressors and good compatibility.
Positioning: Technically sound, mid-range mainstream
Pneumatech
Core products: AD, RD series cold dryers
Core advantages: Focused on compressed air purification for more than 30 years; high efficiency, energy saving, low dew point; modular design, convenient maintenance; widely used in food, medicine, and electronic industries; outstanding cost performance among foreign brands.
United Ultrafiltration
Core products: UF series, combined cold dryer
Core advantages: Integrated cold-drying + precision filtration solution; efficient water, oil, and dust removal; small pressure loss and low energy consumption; suitable for scenes with high requirements for air source cleanliness; stable brand reputation.
Zhendong
Core products: ZD series, standard cold dryer
Core advantages: large-scale production with obvious cost advantages; wide product coverage, ranging from small to large models; stable quality, suitable for small and medium-sized enterprises and general working conditions; affordable prices and strong market penetration.
Youqiao
Core products: YQ series, energy-saving and high-efficiency cold dryers
Core advantages: Leading energy-saving technology, energy consumption is 15%-20% lower than traditional models; intelligent control system, automatic load adjustment; excellent reputation in the South China manufacturing cluster; exported to Southeast Asia and the Middle East market.
Hanbell
Core products: HCD-Eco series, screw cold dryer
Core advantages: Domestic high-end technology representative; R290 natural refrigerant (GWP=3) model launched in 2024; full DC variable frequency scroll compressor, energy efficiency ratio 3.9; new energy and semiconductor fields are growing rapidly, with a growth rate of 19.3% in 2024.
