Other Products ｜GrindLazer HP DC1021 G Gas-Powered Scarifier

Graco GrindLazer HP DC1021 G Gas-Powered Scarifier
The Graco GrindLazer HP DC1021 G Gas-Powered Scarifier (Part Number: 25M994) is a high-production walk-behind concrete and asphalt scarifier designed for professional line removal, surface profiling, and coating removal applications. Built for demanding commercial and roadway work, this unit combines a 21 HP Vanguard® gasoline engine, a self-propelled high-production chassis, and a 10-inch cutting width to deliver efficient, controlled surface removal with reduced operator fatigue. It is engineered for precision work such as parking lot striping removal, roadway marking cleanup, and light-to-medium scarifying tasks.
Product Information
The DC1021 G is part of Graco’s High Production Series and is optimized for aggressive yet controlled material removal on concrete and asphalt surfaces. Its reverse “Up-Cut” cutting direction improves removal efficiency for line striping, surface coatings, and inlay/grooving applications, making it especially effective in roadway and infrastructure maintenance work. 
The unit is designed to be used with Graco’s LineDriver system, which significantly increases productivity and reduces operator fatigue during long runs. The self-propelled configuration provides steady, consistent movement, allowing operators to maintain uniform depth and finish quality across large surface areas.
Depth control is managed through Graco’s DialDown system, which allows easy, multi-position adjustment for precise cutting depth settings. The InstaCut system enables tool-free engagement of the cutting deck, improving flexibility for both removal and inlay work while allowing the deck to float over uneven surfaces for improved consistency. (Graco)
A vibration reduction system is built into the design, including pneumatic tires and ergonomic handle geometry, helping reduce operator fatigue during extended use. The machine also features a heavy-duty filtration system for improved engine life and reliability in dusty jobsite environments. (Graco)
Common Applications and Uses
The GrindLazer HP DC1021 G is commonly used for:

Parking lot line striping removal

Roadway and highway marking removal

Concrete and asphalt scarifying

Surface profiling and texturing

Inlay and grooving preparation

Construction zone marking cleanup

Junction and intersection marking removal

Surface leveling and correction

Light industrial slab preparation

Municipal maintenance projects

Sidewalk and pathway resurfacing prep

Decorative and functional concrete surface prep

Airport and runway marking removal (light duty)

Bridge and infrastructure maintenance tasks

Technical Specifications

Specification
Details

Manufacturer
Graco

Product Name
GrindLazer HP DC1021 G Gas-Powered Scarifier

Manufacturer Part No.
25M994

Power Source
Gasoline

Engine
Vanguard® 21 HP

Starting System
Electric Start

Cutter Type
Drum

Cutter Drum Diameter
5 in (127 mm)

Maximum Cutting Width
10 in (254 mm)

Cut Direction
Reverse / Up-Cut

Depth Adjustment
DialDown system

Drive System
Self-propelled (LineDriver compatible)

Vacuum Port
Yes

Frame
Heavy-duty high-production chassis

Drive System
TriBelt drive system

Features

High-production scarifier for line removal and surface prep

21 HP Vanguard® engine with electric start

Reverse “Up-Cut” cutting direction for efficient marking removal

DialDown depth control system with multi-position adjustment

InstaCut tool-free deck engagement system

Self-propelled design compatible with LineDriver system

Vibration reduction system for improved operator comfort

TriBelt drive system for reliable power transfer

Heavy-duty filtration system for extended engine life

Pneumatic tires and ergonomic handles for smoother operation

Vacuum port for dust control system integration

Designed for roadway, parking, and municipal maintenance work

Compatible Applications
This machine is suited for concrete and asphalt surfaces in municipal roadwork, parking facilities, airports, commercial properties, construction zones, and infrastructure maintenance environments where efficient line removal and surface preparation are required.
Standard Equipment
The GrindLazer HP DC1021 G typically includes the scarifier unit, 21 HP Vanguard® engine, drum cutting system, DialDown depth control, InstaCut deck system, TriBelt drive system, pneumatic tire assembly, vacuum port connection, and operator documentation.
Brand:GrindlazerSKU:25M994Tags:Concrete Scarifiers