High-Precision 280mm Industrial Floor Preparation System with Redi Lock® Compatibility
VFD soft-start technology prevents nuisance tripping on 16 A jobsite circuits
Precision 11 in (280 mm) grinding disc with Redi Lock® H7 tolerance compatibility
Zero-clearance wall grinding capability via detachable wall-hugger shroud design
VFD-Driven Power Intelligence & Circuit Stability
The integrated Yaskawa VFD system provides advanced vector control to manage torque delivery across the 600-1800 rpm spectrum. This configuration eliminates nuisance tripping on 16 A European commercial circuits by limiting inrush current to 1.2 times the rated value.
Constant torque linear output at low frequencies ensures the motor remains within safe thermal limits. This engineering upgrade prevents segment glazing during heavy-duty epoxy removal while maintaining professional-grade reliability across 230 V (50 Hz) residential and commercial environments.
The IP55-rated independent electrical compartment utilizes a dual-chamber cooling loop to isolate sensitive electronics from conductive silica dust. This design significantly extends the MTBF (Mean Time Between Failures) for rental fleets operating in high-vibration conditions.
Precise variable speed adjustment allows operators to match the line speed to specific substrate hardness. This level of control optimizes diamond tooling life and reduces the overall TCO (Total Cost of Ownership) for professional flooring contractors.
OSHA-Compliant Dust Mitigation & Ergonomic Safety
The CG1 incorporates a 10 mm self-adjusting floating shroud system to maintain a constant negative pressure seal. This mechanism automatically compensates for floor irregularities, ensuring OSHA-compliant silica dust containment during aggressive substrate removal and fine polishing.
A 50 mm (2 in) industrial-grade dust port provides optimized airflow for high-CFM vacuum systems. This ensures that 100% of airborne particulates are captured at the source, protecting the operator and minimizing crew downtime cost for cleanup.
The HAV-dampened frame utilizes an integrated vibration-isolated chassis to protect operators from long-term hand-arm vibration injuries. This design complies with Directive 2002/44/EC limits, allowing for extended 8-hour work shifts without compromising health or safety standards.
Modular frame components feature quick-release pins for tool-free disassembly in under 30 seconds. This enhances single-operator logistics, allowing the 169 lbs (77 kg) unit to be transported easily between job sites and floor levels.
Industrial Precision Edging & Tooling Compatibility
The direct-drive engineering utilizes an offset chassis design to deliver 100% torque transmission to the grinding head. This mechanical layout ensures aggressive cutting performance while maintaining a zero-clearance wall grinding capability for corners and edges.
A detachable wall-hugger side cover allows the grinding disc to reach the absolute periphery of the workspace. This functionality eliminates the need for secondary hand-grinding, reducing labor costs and improving the consistency of the finished floor surface.
The Redi Lock® compatible tooling interface is machined to H7 tolerances to ensure perfect alignment of diamond segments. This high-precision manufacturing prevents excessive vibration that could damage motor bearings.
Contractors can utilize their existing Redi Lock® inventory without additional capital expenditure on proprietary mounting hardware.
CG1 280mm Variable Speed Concrete Grinder Technical Specs
| Specifications | CG1-110 | CG1-230/50 | CG1-230/60 | CG1-VFD (Pro) |
| Voltage | 110V 60 Hz | 220V – 240V 50 Hz | 220V – 240V 60 Hz | 220V – 240V 50/60 Hz |
| Power Output | 1.5kW / 2HP | 2.2kW / 3HP | 2.2kW / 3HP | 2.2kW / 3HP |
| Phase | Single Phase | Single Phase | Single Phase | Single Phase |
| Drive Type | Fixed Speed | Fixed Speed | Fixed Speed | Variable (VFD) |
| Electrical Components | Schneider | Schneider | Schneider | ABB/Yaskawa |
| Speed Range (rpm) | 1150 | 1440 | 1740 | 0 – 1400 |
| Grinding Width | 280mm / 11″ | 280mm / 11″ | 280mm / 11″ | 280mm / 11″ |
| Tooling Capacity (pcs) | 6 | 6 | 6 | 6 |
| Weight | 74kg (163lbs.) | 74kg (163lbs.) | 74kg (163lbs.) | 77kg (169lbs.) |
Note: Select our variable speed concrete grinder 280mm VFD model to instantly stop sticky glue from melting. For pure high-speed scraping, our 60Hz edition acts as a high rpm concrete cutting grinder (1740 rpm) to accelerate aggressive floor prep without popping commercial breakers
Full service manuals, wiring diagrams, and exploded views are reserved for authorized B2B accounts
Is the CG1 compatible with my existing 280mm tooling?
Yes. No proprietary tech traps here. CG1 shares the same heavy-duty 280mm platform, meaning your current tooling slides right in
Can a single phase 220v grinder do concrete polishing？
Yes, a single phase polished concrete grinder like the CG1 can easily handle polishing. We built it with an integrated VFD inverter so you can dial down the RPM for heavy mastic scraping, or crank it up to high speeds for multi-step diamond resin polishing
Does the CG1 VFD model maintain enough power for heavy coating removal?
Yes. Unlike cheap variable-speed grinders that lose torque at low rpm, the CG1 pairs a premium Yaskawa VFD with a high-torque 2.2kW motor. This combination delivers consistent downward pressure and constant torque to strip thick epoxies without overheating.
How does the CG1 compare to premium industry brands in terms of build quality?
We use the exact same heavy steel and direct-drive setup as global tier-1 brands. As a dedicated OEM ODM concrete floor edge grinder factory, we don’t do retail—we focus entirely on private-label manufacturing, custom fleet colors, and keeping your cost per unit low enough to beat your local competitors
How to prevent floor grinder from melting sticky glue?
Using a variable speed grinder for polished concrete and floor prep is the best way to prevent melting. Simply lower the machine’s RPM; our high direct-drive torque will slice through thick carpet adhesives mechanically without generating frictional heat
How to do zero clearance edge grinding along walls and pillars?
To do zero clearance edge grinding along walls, use a specialized machine with a flip-open cover like the CG1. Our toolless dual-sided guard lets you grind right up to any vertical surface. You won’t have to worry about raw margins or forcing your crew onto their knees with hand tools to finish edges
What is the best dust control edge grinder?
The CG1 is widely considered the best dustless floor grinder for office renovation and tight spaces. We integrated a floating shroud with a 50mm vacuum port that seals tightly, stopping hazardous silica dust to keep you safe from sudden inspector shutdowns
Reliable Quality Guarantee
We back all core motors and electronics with a 12-month warranty. Replacement components are dispatched directly from our wholesale B2B concrete grinder China factory to eliminate unexpected downtime
Flexible Logistics Solutions
Whether you need a single test unit or a full container for a massive 280mm concrete grinder fleet supply, we optimize freight routes to slash your total landed costs
Partnership Support
Our commercial floor grinder distributor recruitment and concrete grinder fleet supplier for rental programs offer strict territorial protection to stop local price wars and lock in your margins
Get Immediate Factory Quote & CG1 Floor Grinder Wholesale Price
Flexible MOQ tiers, custom OEM configurations, and global distribution logistics support
SCHEDULE A VIRTUAL FACTORY TOUR
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SCHEDULE A VIRTUAL FACTORY TOUR
See our 1,000m² facility and engineering process live via video call.