The Crete Planer 8" Walk Behind Gasoline CPM-8G – 79300 is a heavy-duty, gas-powered scarifier designed to level, texture, and remove concrete and asphalt efficiently on commercial and industrial projects. With an 8‑inch working width, a Honda GX270 gasoline engine, and a robust cutting drum, it is built to tackle trip hazards, coatings, traffic lines, and surface preparation with consistent depth control and high productivity.

Overview of the Crete Planer 8" Walk Behind Gasoline CPM-8G – 79300

The CPM-8G is part of EDCO’s 8" Walk-Behind Crete-Planer line, offered in both gasoline (CPM-8G) and electric (CPM-8E) versions. The 79300 part number specifically refers to a CPM-8G configuration that includes an 8" PCDiamond drum in some listings, targeting contractors who need aggressive scarifying and planing performance.

This walk-behind planer is engineered to remove concrete and asphalt surfaces, repair sidewalks, eliminate trip hazards, and prepare substrates for new coatings and overlays. Its compact design, front lifting handle, and integrated vacuum port make it practical on crowded job sites and easy to load into trucks or trailers.

Key Features and Benefits

The Crete Planer 8" CPM-8G stands out because of its combination of power, productivity, and operator-friendly design. Major features include:

• 8" working width that scarifies approximately 350–500 square feet per hour at a 1/8" depth per pass.

• Ability to remove traffic lines at 800–1,000 lineal feet per hour, making it ideal for parking lots and road markings.

• Power source positioned over the drum to reduce vibration and maximize surface contact.

• Compact frame with a front-mounted lifting handle for easier loading and unloading.

• Standard vacuum port for dust collection to support cleaner, safer operation.

• Optional water misting system on some configurations to help with dust suppression.

These features allow the CPM-8G to produce a uniform, textured finish while keeping operators more comfortable and job sites more controlled.

Technical Specifications

The CPM-8G – 79300 configuration is built around a durable Honda gasoline engine and a robust scarifying drum. Typical specifications include:

• Part number: 79300 (CPM-8G model in specific kit configurations).

• Power source: Gasoline.

• Engine: Honda GX270, 9 HP (some listings reference up to 13 HP variants, but 79300 is documented with 9 HP).

• RPM: Approximately 2,150 drum rpm.

• Working width: 8 inches (203 mm).

• Length: Around 37.5 inches.

• Width: Around 20 inches.

• Height: Around 38 inches.

• Weight: Approximately 206 lb (93 kg).

• Standard drum: Includes 78 cutters and 215 spacers on many CPM-8G kits.

This size and weight give the machine enough mass to cut effectively while remaining maneuverable on sidewalks, decks, and interior slabs.

Performance: Coverage, Depth, and Applications

The CPM-8G is designed for aggressive material removal and precise surface profiling. With an 8" working width, it can:

• Scarify approximately 350–500 square feet per hour at a 1/8" depth per pass, depending on concrete hardness and cutter selection.

• Remove traffic lines at 800–1,000 lineal feet per hour, making it ideal for municipal, commercial, and parking lot line removal.

Common applications include:

• Repairing sidewalks by removing trip hazards and creating a non-slip texture.

• Leveling uneven concrete or asphalt to reduce ponding and surface defects.

• Removing coatings, thin overlays, mastics, and adhesives prior to new installations.

• Texturing surfaces for improved bond of new toppings or coatings.

• Removing traffic markings and lines on roads, warehouses, and parking areas.

Scarifiers like the CPM-8G can penetrate up to about 1/8" in a single pass on typical concrete, allowing fast correction of surface issues. The 6-shaft drum (as used on related Crete-Plane designs) provides multiple impact points that break up the surface into a consistent texture.

Operator Comfort, Handling, and Dust Control

Operator comfort is critical when running a walk-behind planer for long periods, and the CPM-8G’s design addresses this. With the power source over the drum, vibration is reduced and surface contact is improved, which makes the machine feel more stable and easier to control.

The front-mounted lifting handle aids in tipping the machine back for drum inspection, cutter changes, and loading on ramps or into vehicles. Many CPM-8G configurations feature ergonomic T-handle designs and cushioned grips that reduce fatigue and help maintain control when planing rough surfaces.

Dust control is supported via an integrated vacuum port, allowing connection to a compatible dust collection system. When combined with a suitable vacuum, airborne dust is significantly reduced, improving safety and the working environment. Some listings also mention optional water misting systems to further control dust when conditions or regulations require it.

Typical Job Scenarios

Contractors, municipalities, and rental users employ the Crete Planer CPM-8G in a variety of scenarios:

• Sidewalk trip hazard removal: Quickly planing down lifted sections to restore a smooth, ADA-friendly and non-slip surface.

• Warehouse and plant floors: Removing markings, rough spots, or coatings before new line stripping or surface treatments.

• Parking lots and garages: Removing old traffic lines, leveling patches, and preparing surfaces for sealers or overlays.

• Road and bridge decks: Spot scarifying and texturing to improve surface grip or prepare for new overlays, when appropriate safety measures are in place.

• General surface prep: Providing a textured profile for new epoxy, urethane, or cementitious toppings.

Because it is gas-powered and compact, the CPM-8G is easy to move around large sites and does not require access to electric power, though ventilation and engine safety guidelines must be followed when used indoors.

Frequently Asked Questions About the Crete Planer 8" Walk Behind Gasoline CPM-8G – 79300

What is the working width of the CPM-8G?
The CPM-8G has an 8" working width, allowing it to scarify approximately 350–500 square feet per hour at a 1/8" depth per pass.

What engine does the CPM-8G use?
This model is equipped with a Honda GX270 gasoline engine rated at about 9 HP for the 79300 configuration.

How deep can the CPM-8G cut in a single pass?
It is designed to remove up to about 1/8" of concrete per pass, depending on material strength and cutter selection.

How much surface area can it cover per hour?
At a 1/8" depth per pass, the CPM-8G can scarify roughly 350–500 sq ft per hour.

Is the CPM-8G suitable for traffic line removal?
Yes, it can remove traffic lines at approximately 800–1,000 lineal feet per hour, making it effective for parking lots, roads, and warehouse markings.

What is included with the CPM-8G drum?
Many kits come standard with 78 carbide cutters and 215 spacers on the drum, ready for typical scarifying tasks.

Does the machine have dust collection capability?
The CPM-8G includes a vacuum port so you can connect a dust collection system and reduce airborne dust during operation.

Can the CPM-8G be used indoors?
It can be used indoors only where proper ventilation for gasoline engines is available and safety rules are observed; otherwise, electric models like the CPM-8E are usually preferred for enclosed areas.

What surfaces can the CPM-8G work on?
It is designed for concrete and asphalt surfaces, including sidewalks, floors, decks, and other flat surfaces needing leveling, texturing, or coating removal.

Is the CPM-8G easy to transport?
Yes, it has a compact design and a front-mounted lifting handle that makes loading, unloading, and positioning easier.

What is the weight of the CPM-8G?
The machine weighs about 206 lb (93 kg), which provides sufficient stability and cutting force while staying manageable for two-person loading with proper technique.

What is the part number 79300?
Part #79300 is a CPM-8G package configuration listed by EDCO and dealers, often associated with an 8" PCDiamond drum or specific cutter/drum combinations.

How does a scarifier differ from a grinder?
A scarifier like the CPM-8G uses rotating cutting wheels on a drum to chip the surface, creating a more aggressive, profiled texture, while grinders use rotating diamond discs for smoother, more controlled removal.

Who typically uses the CPM-8G?
Concrete contractors, municipalities, rental fleets, and facility maintenance crews use the CPM-8G for sidewalk repair, surface prep, traffic line removal, and general concrete and asphalt maintenance.