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
Quick Quote Request
Fill in your details and we'll get back to you within 24 hours with pricing and recommendations.
Gaolijie D7-5 Hot Water High-Pressure Washer
The Gaolijie D7-5 is a diesel-heated hot water pressure washer for commercial kitchen exhaust hood and duct cleaning. It delivers hot water at high pressure to remove heavy grease deposits from range hoods, filters, and accessible duct sections.
Technical Specifications
| Parameter | Specification |
|---|---|
| Brand / Model | Gaolijie / D7-5 |
| Machine Dimensions | 680 × 830 × 1070 mm |
| Weight | 103 kg |
| Heating Method | Diesel boiler |
| Rated Pressure | 150 bar |
| Water Flow Rate | 9 L/min |
| Output Power | 2.2 kW |
| Power Supply | AC 220V / 50 Hz |
Application
The D7-5 can be used alongside duct cleaning robots during the final rinse stage — flushing loosened grease and chemical residue from commercial kitchen exhaust systems. Hot water cleaning is commonly used for heavy grease removal where cold-water cleaning is less effective.
Contact our engineering team for the complete datasheet, including temperature range, fuel consumption data, and application-specific recommendations.
Shipping & Delivery
Shipping & Delivery
Global shipping to 50+ countries via express, air, and sea freight. Every order packed in reinforced fumigated wooden crates with moisture barrier protection. 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. Spare parts ship within 48 hours from factory inventory. Free lifetime technical support — video training and maintenance docs 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. Video training and technical support included with every purchase.
How fast can I get spare parts?
Parts ship from factory inventory within 48 hours. Express delivery available for urgent needs.

Technical Specifications
Detailed technical specifications are available upon request. Contact our team for the current datasheet and application guidance.
Request SpecificationsApplication Scenarios
-
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.
-
HVAC & Central AC Ducts
Large-building air conditioning duct inspection and cleaning. Navigates long horizontal and vertical runs with full camera documentation.
-
Industrial Pipelines
Factory ventilation, dust collection, and process piping systems. Handles heavy debris, metal dust, and chemical residues in demanding environments.
-
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.