QG-350 Dust-Free Concrete Floor Cutter with Integrated Vacuum
- Integrated 1 kW Dust Extraction System
- Up to 35 mm Concrete Cutting Depth
- Laser Guide for Accurate Joint Cutting
- OEM Customization Meets Different Project Requirements
- CE Certified Quality Supports Global Market Compliance
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QG-350 Dust-Free Concrete Floor Saw Factory with Integrated Vacuum Cleaner
- Integrated Floor Cutting and Dust Extraction
- Powerful 3.7 kW Electric Cutting Motor
- Laser-Guided Concrete Cutting
- Joint Cutting and Floor Grooving
- Precision Cutting-Depth Adjustment
Product Description
Professional Floor Cutter for Concrete Joints and Grooves
The QG-350 is a professional floor cutter designed for cutting control joints, expansion joints and straight grooves in concrete and cement-based floors. This compact walk-behind machine combines a powerful 3.7 kW cutting motor, adjustable cutting depth and an integrated 1 kW dust-extraction system.
Unlike conventional walk-behind concrete saws that require a separate vacuum, the QG-350 captures dust directly around the cutting blade. Its enclosed cutting guard, retractable protective cover and sealed dust-collection path help reduce airborne concrete dust while simplifying jobsite preparation.
Walk-Behind Floor Cutter with Laser Guidance
A horizontal laser guide projects a visible reference line ahead of the machine. This allows operators to align the blade with marked cutting lines and maintain a straighter path when cutting long control joints or floor grooves.
The walk-behind design provides greater stability than a handheld electric concrete saw, especially when producing long, consistent channels across warehouses, factories and other industrial floors. A front guide system further assists with directional control.
Electric Concrete Saw with Adjustable Cutting Depth
The QG-350 can also be classified as an industrial electric concrete saw. Its 5 hp / 3.7 kW motor drives compatible 200 mm diamond blades at up to 2,800 rpm, providing the cutting performance required for concrete joint installation and floor renovation.
Cutting depth can be adjusted according to the joint design, with a maximum depth of 35 mm. The retractable blade cover follows the selected cutting depth, helping maintain blade protection and effective dust collection throughout operation.
Concrete Floor Grooving Machine
When fitted with the appropriate diamond blade, the QG-350 functions as a precise floor grooving machine. It supports nominal groove widths of 2.5 mm and 5.0 mm for different construction and flooring applications.
The 2.5 mm blade is suitable for narrow control joints and fine grooves. The 5.0 mm blade produces wider channels for joint installation, crack treatment and preparation for selected resin or polyurethane flooring systems.
Recommended Applications
- Concrete control-joint cutting
- Expansion-joint installation
- Concrete floor grooving
- Industrial floor renovation
- Crack-routing preparation
- Decorative line cutting
- Warehouse and factory floor construction
- Resin flooring preparation
- Polyurethane flooring preparation
- Straight channels for concrete floor repairs
Features
Integrated Floor Cutting and Dust Extraction
The QG-350 combines floor cutting and dust extraction in one mobile unit. Its built-in vacuum reduces the need to purchase, transport and connect a separate industrial dust extractor, making the machine easier to deploy across indoor jobsites.
Professional Walk-Behind Floor Cutter
The walk-behind structure provides stable handling when cutting long joints and grooves. Its compact dimensions allow operators to maneuver the machine around industrial floors while maintaining greater control than with a handheld concrete cutting tool.
Powerful 3.7 kW Electric Cutting Motor
A 5 hp / 3.7 kW electric motor provides the power required for professional concrete floor cutting. The electric configuration is particularly suitable for indoor applications where exhaust emissions from petrol-powered floor saws may be undesirable.
Enclosed Dust-Collection System
The cutting guard and dust cover form an enclosure around the blade and cutting area. Capturing dust close to its source helps reduce the amount of fine concrete dust released across the surrounding floor.
Built-In High-Efficiency Vacuum
The integrated 1 kW vacuum motor provides a maximum airflow of 2.6 m³/min. An enlarged filter surface, sealed dust path and 19 L dust container support continuous dust collection during floor cutting and grooving.
Laser-Guided Concrete Cutting
A horizontal laser guide projects a visible line in front of the floor cutter. It helps the operator position the blade, follow marked joints and achieve straighter cuts across large concrete surfaces.
Precision Cutting-Depth Adjustment
The adjustable mechanism allows operators to set the cutting depth according to the required joint or groove. The QG-350 can cut concrete floors to a maximum depth of 35 mm.
Depth-Following Blade Cover
The retractable blade cover follows the selected cutting depth. This design keeps more of the diamond blade enclosed, improving blade protection and helping the dust-extraction system maintain effective suction around the cutting point.
Joint Cutting and Floor Grooving
The QG-350 works as both a concrete joint cutter and a floor grooving machine. Compatible diamond blades allow it to create narrow control joints, wider grooves and straight channels for floor construction or renovation.
2.5 mm and 5.0 mm Groove Widths
Two primary blade configurations are available. The 2.5 mm blade produces narrow control joints, while the 5.0 mm blade creates wider grooves for expansion joints, crack treatment and flooring-system preparation.
Compact, Maneuverable Construction
At approximately 110 kg, the QG-350 balances cutting stability with jobsite maneuverability. Its compact body, walk-behind handle and front guide system make it suitable for warehouses, workshops and other industrial environments.
Technical Data Table
The QG-350 is a walk-behind electric concrete floor cutter powered by a 5 hp / 3.7 kW cutting motor. It uses a 200 mm diamond blade operating at up to 2,800 rpm and provides an adjustable cutting depth of up to 35 mm. Depending on the selected blade, the machine can create nominal groove widths of 2.5 mm or 5.0 mm.
For indoor concrete cutting, the QG-350 incorporates a 1 kW dust extractor with a 1 m² filter surface, maximum airflow of 2.6 m³/min and a 19 L dust container. Its laser alignment system, enclosed blade guard and compact walk-behind construction make it suitable for cutting control joints, expansion joints and straight grooves in warehouses, factories and other industrial floors.
Technical Data
| Technical Parameter | QG-350 Specification |
|---|---|
| Model | QG-350 |
| Product Type | Walk-behind concrete floor cutter |
| Cutting Motor Power | 5 hp / 3.7 kW |
| Standard Power Supply | Three-phase, 220–380 V |
| Frequency | 50–60 Hz |
| Maximum Amperage | 14.7 A at 220 V / 8.47 A at 380 V |
| High-Voltage Option | Three-phase, 400–415 V |
| Blade Speed | 2,800 rpm |
| Diamond Blade Diameter | 200 mm |
| Blade Bore Diameter | 25.4 mm |
| Maximum Cutting Depth | 1.4 in / 35 mm |
| Nominal Cutting Widths | 2.5 mm or 5.0 mm |
| Cutting-Depth Adjustment | Adjustable |
| Cutting Alignment | Laser guide |
| Vacuum Motor Power | 1.3 hp / 1 kW |
| Vacuum Power Supply | Single-phase, 220 V |
| Maximum Vacuum Amperage | 5.0 A |
| Filter Surface Area | 10.8 ft² / 1 m² |
| Maximum Airflow | 2.6 m³/min |
| Maximum Vacuum Pressure | 0.2 bar |
| Dust Container Capacity | 19 L |
| Machine Weight | 242 lb / 110 kg |
| Machine Dimensions (L × W × H) | 43 × 16 × 35 in |
| Metric Dimensions (L × W × H) | 110 × 43 × 89 cm |
Specification note: Available voltage, phase, amperage, plug type and diamond blade configuration may vary according to the destination market. Confirm the required electrical supply and cutting width with Exceptional Grinder before ordering.
Diamond Tools
The QG-350 floor cutter uses 200 mm diamond cutting blades with a 25.4 mm bore. Blade selection should be based on the required groove width, concrete hardness, aggregate abrasiveness, reinforcement conditions and desired balance between cutting speed and blade life.
Two primary blade options are available:
- 2.5 mm diamond blade: For narrow control joints and precision floor cutting
- 5.0 mm diamond blade: For wider joints, concrete grooves and flooring preparation
Custom blade or groove-width configurations may also be available. Contact Exceptional Grinder with your concrete type, required cutting width, cutting depth and estimated project area for a suitable blade recommendation.
Accessories
Detailed information about QG-350 accessories, standard components and replacement parts is being prepared and will be published soon. Available components may include 2.5 mm and 5.0 mm diamond blades, replacement filters, blade guards, laser-alignment parts, guide-wheel components and routine maintenance parts.
For current availability, contact Exceptional Grinder with the model QG-350, required voltage, intended groove width and floor application.
Support
Operating instructions, maintenance guidance, wiring information, troubleshooting resources and replacement-parts diagrams for the QG-350 floor cutter are currently being prepared.
For immediate support, provide the machine model, serial number, voltage, blade dimensions, cutting width, cutting depth and a description of the application or technical issue. Photos and short operating videos can help the support team provide more accurate guidance.