Gaolijie Product Comparison: Which Duct Cleaning Machine Is Right for Your Business?

Finding the Right Tool for the Job

Not all ducts are the same — and neither are our machines. Whether you are cleaning a restaurant kitchen exhaust, a commercial HVAC system, or municipal pipelines, choosing the right equipment is the difference between a profitable job and a headache. This guide walks you through our product lineup so you can match the machine to your specific needs.

Quick Comparison Overview

Model	Best For	Key Feature	Duct Type
CR360	Kitchen exhaust grease	304 SS, 360° rotation	Round & rectangular
E200	General duct cleaning	Compact & agile design	Round ducts
K7S	AC & HVAC systems	Soft shaft + vacuum	AC ducts
K5	Flat/square ducts	Optimized for flat surfaces	Flat ducts
K2	Fan coil & central AC	Compact cleaning head	Small AC ducts
K1-1	AC tube cleaning	Tube-specific brush system	AC tubes
D2	Chemical spray & pre-treatment	Dual-pump system	Range hoods & ducts
D7-5	High-pressure hot water	150bar, 100°C water	Heavy grease ducts

By Application

Commercial Kitchen Exhaust Cleaning

For restaurants, hotels, and commercial kitchens dealing with thick grease buildup, the CR360 is our flagship solution. Its 304 stainless steel body resists the corrosive chemicals commonly used in kitchen duct cleaning, and the 360-degree rotation ensures no spot is missed. Pair it with the D2 Sprayer for chemical pre-treatment and the D7-5 Pressure Washer for final rinse — this three-machine combination is what professional kitchen exhaust cleaning crews use daily.

HVAC & Air Conditioning Duct Cleaning

For HVAC maintenance professionals, the K7S is the go-to machine. Its soft shaft system and integrated high-power vacuum make it ideal for residential and commercial AC ductwork where dust and debris (not grease) are the primary concern. For smaller AC systems and fan coil units, the K2 offers a compact alternative. For tube-type AC systems, the K1-1 is purpose-built for the job.

General & Industrial Duct Cleaning

The E200 offers versatility across a range of duct types and sizes. It is the best entry point for companies expanding into duct cleaning services. For flat or rectangular ductwork common in industrial settings, the K5 provides optimized coverage on flat surfaces where round robots may struggle.

Key Decision Factors

Choose CR360 if:

• You primarily clean grease-laden kitchen exhaust ducts
• You need corrosion resistance (304 stainless steel is essential)
• You want video documentation for client reporting
• Duct diameters range from 300mm to 1200mm

Choose K7S if:

• You specialize in HVAC and AC duct maintenance
• You need an all-in-one vacuum and cleaning system
• You service residential and light commercial buildings
• Dust and debris removal is your primary concern (not heavy grease)

Choose E200 if:

• You need a versatile, general-purpose robot for varied jobs
• You are new to robotic duct cleaning and want a accessible entry point
• You clean both grease and dust ducts occasionally

Need Help Deciding?

Every business is different. If you are unsure which model fits your workflow, contact our team with details about the types of ducts you clean, typical sizes, and volume of work. We will recommend the best setup for your specific needs — no obligation, no sales pressure.