GAOLIJIE
D7-5 Hot Water High Pressure Washer for Commercial Range Hood & Duct Cleaning
D7-5 Hot Water High Pressure Washer for Commercial Range Hood & Duct Cleaning
🧰 Gaolijie D7-5 Hot Water High Pressure Washer: Industrial-Grade Commercial Cleaning Power
The Gaolijie D7-5 is a heavy-duty, diesel-heated hot water pressure washer, purpose-built for deep cleaning commercial kitchen range hoods, exhaust ducts, and industrial equipment. With instant heating, 150bar high pressure, and 100℃ hot water output, it delivers unmatched grease removal performance for professional cleaning service providers and facility maintenance teams.
✨ Key Features
- Instant Heating & 100℃ Hot Water: On-demand high-temperature hot water to dissolve stubborn, caked-on grease and grime instantly
- 150bar (150KG) High Pressure: Industrial-grade pressure for deep, thorough cleaning of hard-to-reach ductwork and heavy grease buildup
- Dual Working Modes: Switch freely between high-pressure hot water and high-pressure cold water for versatile cleaning needs
- Robot-Compatible: Seamlessly connect to duct cleaning robots for automated, efficient pipeline cleaning
- Diesel Boiler Heating: Stable, reliable heating system with low fuel consumption (3L/h) for continuous operation
- Mobile & Durable: Wheeled cart design for easy transport to job sites, with a rugged, industrial-grade build
📊 Technical Specifications
| Parameter | Specification |
|---|---|
| Brand | Gaolijie |
| Model | D7-5 |
| Machine Dimensions | 680*830*1070mm |
| Weight | 103KG |
| Inlet Pipe Length | 10m |
| Outlet Lift Head | 10m |
| Heating Principle | Diesel Boiler |
| Rated Pressure | 150bar (150KG) |
| Output Power | 2.2KW |
| Power Supply | AC-220V 50HZ |
| Water Flow Rate | 9L/min |
| Diesel Consumption | 3L/h |
| Working Modes | High-pressure hot water / High-pressure cold water |
🎯 Why Choose Gaolijie D7-5?
- ✅ Professional-Grade Performance: Trusted by commercial cleaning businesses for heavy-duty grease removal
- ✅ Complete Support Package: Free professional cleaning technology training + bidding quotation materials included
- ✅ Factory Direct Supply: 1-year warranty, direct from the manufacturer with guaranteed quality
- ✅ Time & Labor Saving: High-temperature high-pressure system cuts cleaning time by 50%+
- ✅ Versatile Application: Ideal for range hood/duct cleaning, industrial equipment cleaning, floor cleaning, and more
Whether you're running a professional duct cleaning service or maintaining a large commercial kitchen, the Gaolijie D7-5 hot water pressure washer is your ultimate solution for deep, efficient, and reliable cleaning.
D7-5 Hot Water Pressure Washer — Industrial B2B Applications
What temperature range does the D7-5 achieve? The D7-5 heats water up to 95°C (203°F), making it highly effective for removing heavy grease and oil deposits from commercial kitchen exhaust hoods, filters, and accessible duct sections. Hot water cleaning is 3-5x more effective than cold water for grease removal.
What pressure rating is the D7-5? The D7-5 delivers adjustable pressure up to 5,000 PSI (350 bar), suitable for heavy-duty industrial cleaning while allowing lower pressure settings for more delicate surfaces. Variable pressure control enables one machine to handle multiple cleaning applications.
Is the D7-5 portable? Yes — the D7-5 features a compact frame with heavy-duty casters for easy movement between job sites. It connects to standard water supplies and electrical outlets commonly available in commercial kitchen environments.
What industries use the D7-5? Commercial kitchen exhaust cleaners, industrial equipment maintenance providers, food processing plant sanitation teams, and facility management companies are the primary B2B users of the D7-5 hot water pressure washer.
📚 Related Guides
24-hour response — factory-direct pricing
Quick Quote Request
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Shipping & Delivery
Shipping & Delivery
Global shipping to 50+ countries via express, air, and sea freight. Every order packed in reinforced fumigated wooden crates with full insurance. Processing: 1-3 business days. Transit: 3-14 days depending on destination and method.
Warranty & Lifetime Support
Warranty & Lifetime Support
1-Year Comprehensive Warranty on all machines. Extended plans up to 3 years available. Spare parts ship within 48 hours from factory inventory. Free lifetime technical support — video training, maintenance docs, and remote diagnostics included with every purchase.
Frequently Asked Questions
Frequently Asked Questions
Is this machine right for my application?
Our robots handle duct diameters from 120mm to 1000mm, covering commercial kitchen exhaust, HVAC, and industrial pipeline cleaning. Contact us with your project specs for a tailored recommendation.
What comes in the package?
Robot body, control box, 20m cable, remote controller, HD camera system, LED lighting, tool kit, user manual, and warranty card.
Do you offer training?
Yes. Video training and documentation included. Live remote training sessions available at no extra cost.
How fast can I get spare parts?
Parts ship from factory inventory within 48 hours. Express delivery available for urgent needs.

Technical Specifications
- Brand: GAOLIJIE | Model: CR360
- Overall Size: 300 × 300 × 155 mm | Body Material: 304 Stainless Steel
- Working Voltage: 24V DC | Suitable Duct: 120mm – 1000mm diameter
- Camera: 180° wide-angle HD | Lighting: Built-in 12V LED
- Drive Mode: Dual crawler track | Travel Speed: 4–5 m/min
- Waterproof Grade: IP67 | Climbing: ≥ 45° slope
- Net Weight: 17.5 kg | Control Cable: 20 meters
- Warranty: 1 Year Comprehensive | Testing: 48-hour continuous pre-shipment
Application Scenarios
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Commercial Kitchen Exhaust
Heavy grease and oil fume duct cleaning for restaurant chains, hotel kitchens, and food processing facilities. Removes built-up deposits that pose fire hazards.
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HVAC & Central AC Ducts
Large-building air conditioning duct inspection and cleaning. Navigates long horizontal and vertical runs with full camera documentation.
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Industrial Pipelines
Factory ventilation, dust collection, and process piping systems. Handles heavy debris, metal dust, and chemical residues in demanding environments.
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Preventive Maintenance
Scheduled inspection and cleaning programs for facility management companies. Full video documentation for compliance and insurance requirements.
Product Resources
Contact us for these documents — we'll send them with your quote.