CG4 Concrete Floor Grinder | 20” Twin-Head Design

Heavy Duty Walk Behind Grinder – 220V Single-Phase & 400V 3-Phase Dual Drive

Gear-Driven Twin Head – Configured at 360 RPM for high-torque delivery. Eliminates motor stalling under sticky mastics and thick epoxy coating removal
Rigid Steel Frame – 100% welded steel construction with zero plastic parts. Solid machine mass ensures you maintain a constant cutting depth on uneven concrete
500mm Standard Chassis – Fully compatible with universal 250mm plates and diamond shoes. Source your tooling locally with zero proprietary lock-in

CG4 Concrete Floor Grinder Core Technology

The CG4 Platform: Engineered specifically as a 220v single phase 20 inch concrete grinder for standard electrical outlets

This heavy-duty system delivers relentless, gear-driven torque where high-voltage power is unavailable, while maintaining full parts compatibility with our high-amperage 3 phase and single phase grinder fleet options

Counter-Rotating Gear Drive: Zero-Torque Steering

Twin-Head Synchronized counter-rotating discs eliminate lateral tracking and torque steering. Prevents machine drifting for effortless straight-line control

Gear-Driven Built as a high torque low RPM floor prep machine. Direct gear engagement transfers 100% mechanical power to the plate with zero belt slippage

Key Advantage Twin-head balance cuts operator steering fatigue by 50% compared to traditional single-disc machines

500mm Overlapping Path: Zero-Ridge Concrete Grinding

Overlapping Geometry Dual-disc layout leaves zero center ridges, ensuring full 500mm coverage in every single pass

Chassis Rigidity Built onto a rigid steel frame concrete scarifier grinder chassis. True industrial mass eliminates high spots and plane variations without gouging uneven slabs

Key Advantage Complete 500mm geometry delivers a 100% uniform surface profile in a single pass

Universal 250mm Chassis: Open Tooling Standard

Global Compatibility Designed as a heavy duty floor grinder for rental companies and regional distributors. Fully compatible with all industry-standard 250mm (10”) grinding discs

Universal Tooling Platform Accepts all wedge-type shoes and PCDs without proprietary lock-in. Utilize your existing tooling across classic 500mm platforms

Key Advantage Open tooling standard eliminates specialized inventory, significantly lowering regional running costs

CG4 20-Inch Industrial Floor Grinder Tech Specs

Specifications	CG4-220 (Pro)	CG4-380
Voltage	220V – 240V 50/60Hz	380V – 400V 50Hz
Power Output	2.2kW / 3HP	5.5kW / 7HP
Phase	Single Phase	Three Phase
Drive Type	Gear	Gear
Electrical Components	Schneider	Schneider
Speed Range (rpm)	360	360
Grinding Width	500mm / 20″	500mm / 20″
Tooling Capacity (pcs)	2	2
Weight	120kg (264lbs.)	140kg (308lbs.)

Note: The 2.2kw floor grinder for standard outlets configuration is our global production standard. As a dedicated OEM ODM concrete grinder factory, we keep heavy-gauge gearboxes and Schneider electrics fully stocked to eliminate lead-time delays, allowing us to lock in a stable CG4 concrete grinder wholesale price for your regional fleet

Full service manuals, wiring diagrams, and exploded views are reserved for authorized B2B accounts

FAQ

Why choose a counter-rotating machine over a traditional single-disc grinder?

Single-disc units constantly pull and drift, forcing your operators to fight the machine’s torque. The CG4’s counter-rotating heads neutralize these lateral forces internally. You get smooth, straight-line tracking and a perfectly flat surface profile without directional swirl marks or severe operator steering fatigue

Is the CG4 compatible with our existing industry-standard tooling?

Yes. The CG4 platform fully accepts industry-standard 250mm (10”) plates, wedge-type diamond shoes, and PCD scrapers. Your operators can use their existing inventory from any classic 500mm platform—eliminating the need for expensive, proprietary locking adapters

What makes this configuration the best wholesale industrial concrete grinder CG4 option for thick epoxy removal?

The direct gear-driven, low-RPM, high-torque configuration of the CG4 cuts through thick epoxy coating removal and tough mastics without stalling. Its overlapping disc geometry leaves zero center ridges, providing 100% surface coverage in a single production pass

How do you evaluate electric vs propane/petrol concrete grinders for indoor jobsites?

Propane units present severe ventilation hazards indoors and demand relentless engine maintenance. As a dedicated B2B surface preparation equipment supplier, we engineered the electric CG4 for zero-emission indoor compliance. It delivers the rigid mechanical mass of heavy gas units while slashing drivetrain maintenance costs to an absolute minimum

How do you maintain a constant cutting depth on uneven concrete slabs using a twin-head frame?

Light machines bounce and skip on uneven floors. The CG4 locks down a consistent profile by combining its heavy-welded steel chassis with flexible disc couplings. This industrial mass delivers constant downward force, ensuring diamond shoes track floor variations mechanically without losing pressure

How does our aluminum tool plate assembly manage heat dissipation during extended deep concrete grinding?

The high-thermal-conductivity aluminum tool plates accelerate operational heat dissipation directly from the diamond segments. This rapid thermal transfer prevents tooling glaze and bond degradation during high-load concrete grinding, guaranteeing consistent cutting depth without premium diamond shoe burnout

What is the real breakdown for planetary vs twin head floor grinder maintenance costs?

A 500-hour jobsite review of planetary vs twin head floor grinder maintenance costs reveals that planetary units demand complex gearbox seals and constant belt adjustments. The CG4’s direct-drive twin head system eliminates internal drive belts entirely. This design simplification strips away high-wear parts, slashing your fleet maintenance costs by 40%

Direct Factory Pricing

Skip middleman markups. We provide clear, structured tier-pricing to protect your dealer margins and lock in a competitive CG4 concrete floor grinder wholesale price for your territory

Factory Warranty

Core gearboxes and drivetrains carry a 12-month factory warranty. Replacement parts ship directly from our workshop to minimize your fleet’s jobsite downtime

Scalable Supply

From single evaluation units to full container loads. We optimize logistics as your dedicated, backend B2B surface preparation equipment supplier to lower total landed costs

Request CG4 Grinder Factory Quote

Flexible MOQ tiers, custom OEM configurations, and global distribution logistics support