Global Cleaning Engineering Leader

China Top Portable Pressure Cleaners Manufacturers & Supplier

Delivering state-of-the-art high-pressure cleaning technology, industrial-grade pump systems, and robust environmental solutions engineered with over 30 years of manufacturing experience.

30+ Years of Manufacturing Pioneer Heritage

Foshan Dulles Equipment Co., Ltd. has established itself at the forefront of cleaning mechanical system research and development for more than three decades. As one of the earliest companies to engineer pressure washers in mainland China, we have grown alongside the global demand for energy-efficient, environmentally conscious, and high-performance industrial equipment.

Our roots date back to 1995 when we developed our first general home pressure washer. Responding dynamically to the industrial scaling of global economies, our R&D roadmap evolved. We aggressively integrated heavy industrial capabilities to manufacture specialized systems. Today, our catalog spans commercial and industrial pressure washers, explosion-proof high-pressure cleaning systems, sewer machine drain cleaners, industrial fog-making systems, electric sewer cleaners, gasoline dredge cleaning units, and automated intelligent environmental protection equipment.

"We promise to do our best to clean the world and create a smarter life, growing together with partners worldwide to build the most reliable global brand in the cleaning and environmental protection industry."

Dulles Factory Equipment Presentation

Pioneering Cleaning Engineering and Technology

Our infrastructure is optimized to yield ultimate performance indicators, complying with international standards and enabling large-scale industrial operations to execute cleaning protocols safely.

Proprietary R&D

Fully self-owned labs coupled with automated assembly and diagnostic systems for high-pressure plunger pumps and complex hydraulic cleaning systems.

Certified Compliance

Our complete product array holds domestic 3C, CE, and ISO certificates alongside numerous design pattern certificates for pumps and safety modules.

Global Footprint

Export networks covering European and American markets, along with strong partner support channels across South and East Asia.

30+
Years of R&D Experience
150+
Patents & Certifications
100%
Testing Guarantee Rate
7x24
Global Support Coverage

Industrial Applications & Localization Use Cases

Our portable pressure cleaners and customized washing solutions are engineered to deliver reliable cleaning performance across highly diverse environmental conditions and demanding operational constraints.

Municipal & Sewer Infrastructure

Cities require highly efficient systems to remove root blockages, grease, and scale. Our high-pressure sewer jetter systems (delivering 240bar to 280bar) integrate advanced self-leveling sewer camera systems and mechanical root cutters, allowing municipal workgroups to inspect, locate, and clean blockages simultaneously, minimizing urban traffic disruption.

Photovoltaic & Solar Clean Tech

In regions like the Middle East or Southern Europe, dust accumulation can degrade solar panel performance by up to 30%. Our specialized European standard solar panel cleaning equipment provides variable-pressure washing and dynamic surface adaptation, ensuring maximum photovoltaic yield without causing micro-cracks on the panels.

CIP Tank Cleaning (Food & Pharma)

Hygiene compliance is essential in food, beverage, and chemical processing. Our stainless steel CIP (Cleaning In Place) systems and automated IBC washing lines utilize 360° internal rotating tank cleaning designs. This eliminates manual entries into confined spaces, lowers water usage, and guarantees clean, sterile process environments.

Certification Application Fields

Industrial Technology Integration

Our high-pressure machines are built for heavy-duty applications. From ship rust removal and bridge engineering to road dust suppression, we supply high-pressure pumps that perform consistently under demanding operating parameters.

By designing and building our own high-pressure pumps, we achieve the precise alignment of flow, pressure, and thermal balance. This direct manufacturing control guarantees stable performance even during continuous 24-hour shifts in harsh environments.

China Factory Supply Chain Resilience & R&D Excellence

As a direct manufacturer, Foshan Dulles Equipment Co., Ltd. manages a complete, resilient vertical supply chain. This enables us to maintain strict quality control, minimize lead times, and optimize engineering parameters.

In-House Design & Testing

Our self-built laboratory conducts continuous lifecycle testing on all core components. Every plunger pump is performance-tested before final assembly to ensure reliability in the field.

Automated Assembly Lines

Our automated assembly lines utilize robotic precision and high-accuracy diagnostic instruments. This ensures tight tolerances are met across all custom valve blocks, nozzles, and manifold designs.

Robust Material Sourcing

We build our units using high-grade stainless steel, brass manifolds, and wear-resistant ceramic plungers. This ensures reliable chemical compatibility and resistance to wear and scale build-up.

Factory Operations & Facility Tour

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Technology Roadmap: The Future of Clean Engineering

As a global manufacturer, we align our product development with key environmental and technological trends, such as digital automation, resource conservation, and high-efficiency power design:

Intelligent Pressure Regulation: Variable-frequency drives automatically adjust flow and pressure in response to pipeline debris, saving water and power.
Zero-Emission Integration: Development of clean energy pump designs, including DC-direct solar high-pressure booster systems for off-grid operation.
Advanced Non-Thermal Cleaning: Utilizing specialized plasma surface cleaning systems to clean polymer and non-metallic materials without chemicals or heat.

Global Compliance & Localized Support

Operating across diverse jurisdictions requires strict compliance with international manufacturing, safety, and operational standards.

Dulles high-pressure cleaning products and systems are designed and built to meet domestic and international criteria, including 3C, CE, and ISO guidelines. Our specialized hazardous-duty systems are engineered to prevent ignitions in petrochemical environments.

We back our systems with 7x24 pre-sales technical consultation, design validation, and after-sales support, helping municipal and industrial operators keep their equipment running reliably.

Frequently Asked Questions

Here are detailed technical insights addressing the key operational, design, and performance considerations of our high-pressure cleaning systems.

Q1: How do Dulles sewer pipe jetting systems prevent damage during operations?
Our high-pressure jetting units feature responsive pressure-bypass valves and real-time monitoring. Integrated self-leveling cameras allow technicians to inspect pipe conditions before and during blasting, helping prevent pressure surges in compromised pipes.
Q2: What are the main benefits of using solar-powered high-pressure surface pumps?
Our Solar DC High Pressure Boosting Surface Pump Systems run directly on DC power from PV panels, eliminating the energy losses of DC-to-AC inverters. This design is highly suitable for off-grid irrigation, remote mining dust suppression, and remote solar farm washing.
Q3: How do 360-degree rotating nozzles improve automated tank washing (CIP)?
Our CIP systems utilize fluid-driven or gear-driven 360-degree rotating spray heads. By projecting high-velocity water jets across the complete inner surface of the tank, they remove stubborn residues with less water, shorter cycle times, and no manual tank entry.
Q4: Why are plunger pumps preferred over axial pumps in heavy industrial settings?
Triplex plunger pumps use ceramic pistons and a crankshaft design, which reduces mechanical friction and thermal build-up compared to wobbler-plate axial pumps. This allows them to run continuously at higher pressures and flows, extending service life in industrial applications.
Q5: How does Dulles ensure explosion-proof safety in petrochemical and mining applications?
Our explosion-proof high-pressure cleaners utilize spark-resistant copper-alloy components, sealed ATEX-compliant electrical enclosures, and non-sparking start-stop mechanisms. These features minimize the risk of ignition when operating near volatile gases or coal dust.
Q6: What parameters are adjustable on Dulles automated tray and mold washing equipment?
Operators can adjust water pressure, wash temperature, conveyor belt speed, and chemical dosing. This flexibility allows the system to clean delicate baking trays, industrial molds, or heavy parts bins without causing surface wear.