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Vacuum Toilet and Portable Restroom Manufacturer

We design and manufacture vacuum toilet and portable restroom

About Us

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Sichuan Zhongneng Environmental Protection Technology Co., Ltd. is a high-tech enterprise focusing on scientific research, design, production, installation and technical services of “vacuum toilets”. With mature technology and rich design and construction experience, ZNZK has always been at the forefront of research of China’s vacuum toilet system products.

ZNZK has gone on to the largest supplier of vacuum toilet in China. With 500+ installations nationally, ZNZK design engineers and project managers have been involved in a large variety of projects of ……

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Mobile Restroom Customization

★ The appearance and color

★ Can customize 2 to 6 seats vacuum toilet

★ Space layout

★ Ceramic or stainless steel materials

★ Toilet bowl or squat pan

 

Our mobile restroom offers super flexibility for projects since it is highly mobile.

When there is no water inflow and no sewage pipe, 2000 to 3000 flush are possible. The customer can also choose the heating and insulation equipment, and the use environment temperature is -50° to 40°.

Will develop a solution that meets your demands!

Contact us , we are online!
ZNZK vacuum toilet greatly performance

Save 12089tons of water annually.
Per time power use only 0.0025W.
Environment suit -40~++50.
Mobile ZNZK vacuum toilet solution
With the feature of the vacuum toilet system, ZNZK launched the mobile vacuum toilet toilet, which is easy to install and economical (widely used in high-speed railways, airplanes, ships, oil fields, power stations, municipalities, scenic spots, high-cold areas, water-scarce and pollution-free areas, etc)
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Project cases

Business areas of products

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News & Events

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  • Innovator Profile: ZNZK’s Patented Technology Drives Customizable, Self...
    Feb-03-2026
    In an era demanding advanced environmental stewardship and robust infrastructure, Sichuan ZN Energy Conservation and Environmental Protection Technology Co., Ltd. (ZNZK) emerges as a pivotal innovator. As China’s largest vacuum toilet supplier, with over 500 nationwide installations, ZNZK...
  • China’s Largest Vacuum Toilet Supplier, ZNZK, Achieves Massive Water Sa...
    Jan-28-2026
    CHENGDU, CHINA – In an era defined by urgent environmental challenges and the global pursuit of sustainable infrastructure, one company stands at the forefront of innovative sanitation solutions: Sichuan ZN Environmental Protection Technology Co., Ltd. (ZNZK). Recognized as China’s larges...
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