High-Performance 280 mm Single-Head Alternative for Precision Edge Grinding and Polishing
High Pressure Single Disc Direct Drive with Offset Design for maximum grinding pressure
100% Redi Lock compatible tool-free diamond change system for instant tooling swaps
OSHA Table 1 compliant dust containment with self-adjusting floating shroud system
Dual-Chamber Isolation and VFD Power Management
The CONGRIND CG1-V integrates a Yaskawa VFD to neutralize the risk of electronic failure in high-silica environments. This engineering architecture utilizes **Dual-Chamber Isolation** to separate the control logic from the power cooling duct.
The IP55 sealed control chamber prevents conductive concrete dust from infiltrating sensitive electronics. This separation ensures the 3.0 hp (2.2 kW) motor maintains peak torque even at low-speed polishing intervals.
Vector Control Soft Start technology limits inrush current to 1.2x the rated value. This precision management allows stable operation on extension leads, preventing nuisance tripping in older residential job sites.
This robust electrical design extends the service life of the VFD. By reducing electronic downtime, contractors achieve a higher asset utilization rate and a significantly lower Total Cost of Ownership (TCO).
Direct Drive with Offset Mechanical Architecture
The Direct Drive system eliminates belt slippage to deliver 100% of the motor’s torque directly to the 280 mm (11 in) grinding head. This mechanical configuration removes the primary failure point found in traditional belt-driven edge grinders.
The Offset Design allows the grinding disc to reach the absolute edge of wall lines. This geometry eliminates the need for secondary hand-grinding, reducing labor overhead per linear meter by approximately 30%.
A integrated Flexible Coupling acts as a mechanical fuse between the motor and the grinding disc. This component absorbs impact energy when hitting uneven slabs or metal embeds, protecting the motor shaft from structural deformation.
By removing belt maintenance and protecting the drivetrain, the CG1-V maximizes uptime. This engineering focus on mechanical durability directly expands the net profit margin for high-volume rental fleets.
OSHA Compliant Dust Management and Tooling Ecosystem
The Self-Adjusting Floating Shroud provides 15 mm of vertical displacement to maintain a perfect vacuum seal on uneven concrete surfaces. This system is engineered to meet OSHA Table 1 mandates for crystalline silica dust control.
The asymmetric chassis features a detachable shroud side cover for zero-gap wall grinding. This allows the Redi Lock compatible head to process corners without exposing the operator to hazardous airborne particulates.
The Centrifugal Locking Redi Lock system enables tool-free diamond changes in under 10 seconds. This ecosystem is 100% compatible with industry-standard quick-change tooling, ensuring seamless integration into existing contractor inventories.
Effective dust containment reduces post-grinding cleanup time and protects the operator’s health. This compliance-driven design minimizes non-productive time, allowing for faster transition between grinding and polishing phases.
Technical Specification Matrix
| 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.) |
Can the CG1-V operate on residential circuits without tripping breakers?
The integrated Vector Control Soft Start limits inrush current to 1.2x the rated value. This engineering feature ensures stable operation on standard 15 A circuits and long extension leads. By managing the power load, the machine prevents nuisance tripping in older buildings.
Why is the 600-900 rpm range critical for concrete edge polishing？
Low-speed operation combined with constant torque prevents gouge marks and swirl marks on delicate surfaces. The CG1-V variable speed control allows for professional finishes on marble, terrazzo, and resin bond applications. This range fills the gap left by fixed-speed edge grinders.
Does the dual-chamber isolation provide protection when grinding conductive materials?
The IP55 sealed housing and independent cooling duct protect the Yaskawa VFD from conductive dust and metallic epoxy particles. This separation ensures long-term reliability in extreme industrial conditions. It prevents the short-circuiting risks common in single-chamber electronic designs.
Is the CG1 100% compatible with industry standard quick change diamond tools?
The centrifugal self-locking system is fully compatible with Redi Lock tooling for tool-free changes. This allows for seamless integration into existing rental fleets and contractor inventories. The design ensures that standard diamond segments remain securely locked during high-rpm operation.
How does the asymmetric chassis achieve zero-gap wall grinding without hand tools?
The detachable shroud side cover and offset head design allow the 280 mm (11 in) disc to reach the absolute edge. This geometry eliminates the need for manual hand-grinding under toe kicks and along wall lines. It significantly reduces labor costs for edge preparation.
How many CG1 units fit into a standard 20ft GP container for international shipping?
The modular design allows for 52 units per 20ft GP container utilizing standardized palletized dimensions. This high-density loading optimizes global logistics and reduces landed costs per unit. The quick-release frame supports efficient stacking and transport for large-scale distributors.
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
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See our 1,000m² facility and engineering process live via video call.