About Soto Machinery

A trusted manufacturer of industrial wastewater treatment and waste gas treatment equipment, delivering reliable solutions to clients worldwide since 2009.

Soto Machinery manufacturing facility in Qingdao

Who We Are

Leading Manufacturer of Environmental Treatment Equipment

Soto Machinery Co., Ltd. (Qingdao) is a professional manufacturer specializing in industrial wastewater treatment systems and waste gas treatment equipment.

Located in Qingdao, Shandong Province, we have over 15 years of experience in designing, manufacturing, and installing environmental protection equipment. Our factory covers an area of more than 20,000 square meters with advanced production facilities and a skilled technical team.

We are committed to providing high-quality, cost-effective environmental solutions for industries including food & beverage, chemical, pharmaceutical, printing, municipal, and more. Our products have been exported to over 40 countries and regions worldwide.

15+

Years Experience

500+

Projects Completed

40+

Countries Served

20,000㎡

Factory Area

Why Choose Us

Our Core Values

We are dedicated to delivering excellence in every project through innovation, quality, and customer-focused service.

🏭

Direct Factory

Own manufacturing facility with competitive pricing and full quality control from raw materials to finished products.

⚙️

Custom Engineering

Tailored solutions designed by experienced engineers to meet your specific treatment requirements and standards.

✅

Quality Assured

ISO 9001 certified production with strict quality inspection at every stage before equipment shipment.

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Global Service

Worldwide shipping, multilingual support, and comprehensive after-sales service for international clients.

Our Factory

Manufacturing Capability

Take a look inside our advanced production facility where every piece of equipment is precision-engineered and built to last.

Integrated wastewater treatment equipment production

Integrated STP Production Line

UV photolysis waste gas treatment manufacturing

UV Photolysis Equipment Workshop

Equipment shipping and quality inspection

Quality Inspection & Shipping

Our Journey

Company Milestones

Over 15 years of growth and innovation in environmental protection equipment manufacturing.

2009

Company Founded

Shuimuqing Environmental was established in Qingdao, focusing on wastewater treatment equipment R&D and manufacturing.

2013

Expanded to Waste Gas Treatment

Launched waste gas treatment product line including UV photolysis, activated carbon adsorption, and dust collection systems.

2016

ISO Certification

Achieved ISO 9001 Quality Management, ISO 14001 Environmental Management, and ISO 45001 Occupational Health certifications.

2019

New Production Facility

Moved to a new 20,000㎡ manufacturing facility with advanced production equipment and expanded R&D center.

2022

Multiple Patents Granted

Received multiple utility model patents for DAF systems, integrated sewage treatment, and waste gas deodorization technology.

2024

Global Expansion

Established Soto Machinery brand for international markets. Products now exported to over 40 countries worldwide.

Our Team

Expert Team, Reliable Solutions

Our team consists of experienced engineers, skilled technicians, and dedicated customer service professionals. We work together to deliver reliable environmental solutions that exceed client expectations.