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Graco GrindLazer Standard DC89-G Gas Powered Concrete Scarifier
The Graco GrindLazer Standard DC89-G Gas Powered Scarifier is a professional walk-behind concrete scarifier engineered for aggressive surface preparation, concrete profiling, coating removal, pavement maintenance, and industrial floor restoration. Powered by the dependable Honda GX270 commercial-grade gasoline engine, the DC89-G combines exceptional cutting performance, precise depth control, and rugged construction to tackle demanding concrete preparation projects in commercial, industrial, municipal, and infrastructure environments.
Designed for contractors who require consistent productivity and durability, the GrindLazer Standard Series produces the proper Concrete Surface Profile (CSP) needed for epoxy coatings, overlays, waterproofing systems, decorative concrete applications, and concrete repair materials. Whether removing thermoplastic traffic markings, eliminating trip hazards, preparing warehouse floors, or restoring parking structures, the DC89-G provides outstanding control, long service life, and professional-grade results.
Unlike conventional grinders that rely on diamond abrasion, the GrindLazer scarifies by mechanically impacting the concrete surface with rotating cutter assemblies. This process quickly removes coatings, roughens surfaces, levels imperfections, and prepares substrates for superior coating adhesion while maintaining high production rates.

Why Choose the Graco GrindLazer DC89-G?
Commercial Honda GX270 Engine
The DC89-G is powered by the legendary Honda GX270 commercial engine, delivering dependable power for demanding surface preparation projects. Designed specifically for contractor equipment, the GX270 offers outstanding reliability, excellent fuel efficiency, and simplified maintenance.
Key engine benefits include:

Commercial-duty overhead valve design

Excellent fuel economy

Easy pull-start operation

Low vibration

Proven reliability

Long service life

Readily available replacement parts

Aggressive Surface Preparation
The GrindLazer removes concrete faster than many conventional grinding methods while creating a properly textured profile for coatings and repair materials.
Ideal for:

Concrete scarifying

Surface profiling

Concrete cleaning

Coating removal

Epoxy removal

Paint removal

Mastic removal

Adhesive removal

Thermoplastic removal

Parking garage restoration

Industrial floor renovation

Sidewalk repair

Bridge deck preparation

Professional Depth Control
Graco's dual-depth adjustment system allows operators to quickly switch between coarse adjustments and fine precision settings.
Advantages include:

Accurate cutting depth

Uniform surface profile

Easy adjustments

Consistent removal rates

Reduced operator fatigue

This allows contractors to produce repeatable results across large floor areas while minimizing unnecessary concrete removal.

Heavy-Duty Construction
Every major component is designed for contractor use.
The machine incorporates:

Heavy-duty steel frame

Reinforced drum housing

Industrial bearings

Commercial drive system

Rugged wheel assemblies

Durable powder-coated finish

Heavy-duty operator controls

These components withstand demanding daily jobsite conditions while reducing maintenance requirements.

Triple Belt Drive System
Unlike lighter-duty scarifiers, the DC89-G transfers engine power through a heavy-duty triple-belt drive system that delivers:

Maximum torque

Smooth power transfer

Reduced belt slippage

Improved reliability

Lower maintenance

Longer component life

Sealed Bearing Design
The cutter drum utilizes sealed bearings designed to keep abrasive concrete dust away from critical rotating components.
Benefits include:

Longer bearing life

Reduced maintenance

Increased uptime

Improved durability

Better long-term reliability

Swivel or Fixed Front Wheel
The front caster can operate in two positions.
Swivel Mode
Ideal for:

Feathering

Curved cuts

Detail work

Controlled maneuvering

Fixed Mode
Perfect for:

Straight-line scarifying

Long production runs

Consistent surface preparation

Maximum productivity

Adjustable Operator Handle
The ergonomic handle system allows operators of different heights to work comfortably during extended projects.
Benefits include:

Improved control

Better visibility

Reduced fatigue

Increased productivity

Built-In Hour Meter & Tachometer
The integrated monitoring system displays:

Engine RPM

Total operating hours

This allows contractors to:

Schedule maintenance

Monitor performance

Track service intervals

Improve fleet management

Dust Collection Ready
The DC89-G includes an integrated vacuum port compatible with Graco's LazerVac™ dust collection system, helping reduce airborne silica dust and maintain cleaner work environments. For applications requiring dust suppression, an optional water kit is also available, supporting compliance with jobsite dust-control practices.

Typical Applications
The GrindLazer DC89-G is commonly used for:

Concrete surface preparation

Concrete resurfacing

Warehouse floor restoration

Parking garage maintenance

Industrial flooring

Airport runways

Highway maintenance

Bridge deck rehabilitation

Sidewalk trip hazard removal

Decorative concrete preparation

Coating removal

Paint removal

Epoxy removal

Thermoplastic line removal

Adhesive removal

Expansion joint preparation

Concrete repair

Overlay preparation

Polymer flooring preparation

Waterproofing preparation

Technical Specifications
 

Specification
Details

Manufacturer
Graco

Product Name
GrindLazer Standard DC89-G

Manufacturer Part Number
25M843

Product Type
Walk-Behind Concrete Scarifier

Series
GrindLazer Standard Series

Power Source
Gasoline

Engine Manufacturer
Honda

Engine Model
GX270

Engine Horsepower
9 HP

Engine Type
4-Cycle OHV Commercial Engine

Starting System
Recoil Pull Start

Cooling System
Air Cooled

Air Filtration
Honda Cyclone® Air Cleaner

Fuel Type
Unleaded Gasoline

Drive System
Triple Belt Drive

Cutter System
Rotating Drum

Drum Diameter
5 in. (127 mm)

Maximum Cutting Width
8 in. (203 mm)

Cutting Direction
Forward

Depth Adjustment
Dual Manual Adjustment

Front Wheel
Swivel or Locking Fixed Position

Rear Wheels
Heavy-Duty Rubber

Vacuum Port
Yes

Dust Collection Compatible
Yes

Water Suppression Compatible
Yes (Optional Kit)

Tachometer
Yes

Hour Meter
Yes

Machine Weight
Approximately 150 lbs (68 kg)

Overall Length
Approximately 42 in.

Overall Width
Approximately 16 in.

Overall Height
Approximately 40 in.

 

Performance Specifications
 

Performance
Value

Maximum Working Width
8 inches

Drum Diameter
5 inches

Typical Production Rate
Up to 400 sq. ft./hour*

Surface Profile
CSP 2–6 (depending on cutter configuration)

Direction of Operation
Forward

Maximum Material Removal
Depends on cutter selection and depth setting

 
*Actual productivity varies depending on concrete hardness, cutter style, depth setting, and operator technique.

Engine Specifications
The Honda GX270 is one of the most trusted engines in the construction industry, delivering dependable power for demanding scarifying applications.
Engine Details

Commercial-grade Honda GX270

9 HP output

Overhead Valve (OHV) design

Air-cooled

Low vibration operation

Excellent fuel economy

Heavy-duty cast iron cylinder sleeve

Cyclone® air filtration system

Automatic mechanical decompression for easier starting

Oil Alert® low-oil shutdown protection

Low emissions design

Long service life

Worldwide Honda parts availability

Surface Preparation Capabilities
The DC89-G is designed to prepare concrete surfaces before installing:

Epoxy coatings

Polyaspartic coatings

Urethane flooring

Cement overlays

Self-leveling underlayments

Waterproof membranes

Decorative concrete systems

Industrial floor coatings

Parking deck coatings

Bridge deck membranes

Material Removal Applications
This machine effectively removes:

Paint

Epoxy

Urethane coatings

Mastic

Adhesives

Thin-set mortar residue

Thermoplastic traffic markings

Surface contamination

Rust stains

Weathered concrete

Scaling

Minor concrete imperfections

Compatible Concrete Surface Types
Suitable for:

Sidewalks

Parking garages

Warehouse floors

Industrial facilities

Manufacturing plants

Distribution centers

Airport pavements

Loading docks

Bridge decks

Municipal sidewalks

Concrete roads

Commercial slabs

Decorative concrete

Precast concrete

Cutter Drum Compatibility
The DC89-G accepts multiple drum assemblies for different applications.
Compatible drum styles include:

Steel Beam Drum

Steel Star Drum

Wire Brush Drum

Carbide Flail Drum (Fine)

Carbide Flail Drum (Medium)

Carbide Flat Drum (Fine)

Carbide Flat Drum (Medium)

Carbide Miller Drum (Fine)

Carbide Miller Drum (Medium)

Full Carbide Miller Drum

Each drum produces a different surface profile depending on the application and desired Concrete Surface Profile (CSP).

Optional Accessories
Available accessories include:

LazerVac™ Dust Collection System

Water Spray Dust Suppression Kit

Edger Kit

Replacement Cutter Drums

Replacement Carbide Cutters

Replacement Shafts

Spacer Kits

Replacement Belts

Replacement Bearings

Wheel Kits

Replacement Handles

Maintenance Components

Standard Equipment
The GrindLazer DC89-G typically includes:

Complete scarifier machine

Honda GX270 engine

Standard cutter drum (configuration may vary)

Operator handle

Depth adjustment system

Hour meter/tachometer

Belt guard

Wheel assembly

Operator's manual

Dust Collection Benefits
When paired with a compatible vacuum system, the DC89-G helps:

Improve jobsite visibility

Reduce airborne dust

Support OSHA silica dust compliance when used as part of a compliant dust-control system

Minimize cleanup time

Extend cutter life by reducing debris buildup

Advantages Over Traditional Grinders
Compared with diamond grinders, scarifiers can:

Remove coatings faster

Create deeper concrete profiles

Prepare concrete for overlays

Remove thermoplastic markings

Eliminate trip hazards

Increase production on heavy-removal applications

Lower tooling costs for aggressive surface removal
Brand:GrindlazerSKU:25M843Tags:Concrete Scarifiers