Concrete Floor Grinder Twin Head
DFG 400 Concrete Floor Grinder Hire Dublin
The DFG 400 Concrete Floor Grinder Twin Head is a heavy-duty professional floor grinding machine available to hire from A-Z Hire in Dublin.
With a 400mm working width and twin grinding heads, the DFG 400 is designed for fast and efficient grinding of concrete floors, making it ideal for larger areas where a smaller single-head grinder would take considerably longer.
Use it to grind concrete, smooth uneven concrete floors, remove high spots, remove old coatings and prepare concrete surfaces before applying new flooring, coatings, screeds or levelling compounds.
Grinding discs sold separately.
What Is the DFG 400 Floor Grinder Used For?
The DFG 400 is designed specifically for professional concrete floor grinding and surface preparation.
Typical applications include:
- Grinding concrete floors
- Smoothing rough concrete
- Removing high spots from concrete
- Levelling minor surface irregularities
- Removing old floor coatings
- Removing surface contaminants
- Removing concrete laitance
- Preparing floors before epoxy coatings
- Preparing concrete before floor paint
- Preparing floors before screeds or levelling compounds
- Garage floor preparation
- Warehouse floor preparation
- Workshop and industrial floor renovation
400mm Twin Head Concrete Grinder
The major advantage of the DFG 400 is its twin-head 400mm grinding system.
Two grinding heads allow the machine to cover a wider area with each pass, making it considerably more productive on larger concrete floors than a smaller single-head grinder.
The heavy-duty gearbox drive system is designed for demanding professional floor preparation work.
Ideal For Larger Floor Areas
The DFG 400 is particularly suitable for:
- Warehouses
- Workshops
- Factories
- Garages
- Commercial buildings
- Retail units
- Construction projects
- Residential renovations
- Large concrete floors
Smooth Uneven Concrete Floors
If a concrete floor has rough areas, ridges, bumps or high spots, the DFG 400 can mechanically grind away the upper surface of the concrete.
This can produce a flatter and more consistent surface before the next stage of the flooring project.
Unlike sanding, concrete grinding uses specialist abrasive grinding discs designed specifically for working on hard concrete surfaces.
Grinding Discs Sold Separately
Grinding discs are sold separately and are not included in the machine hire price.
The correct grinding disc will depend on the concrete and the type of work being carried out.
Different applications can require different diamond tooling depending on:
- Concrete hardness
- Amount of material being removed
- Existing coatings
- Condition of the concrete
- Required surface finish
Tell the A-Z Hire team what you are trying to achieve and we can advise on the appropriate grinding discs for the job.
Why Do We Sell the Grinding Discs Separately?
Diamond tooling is a consumable.
The amount of wear can vary considerably depending on the hardness and condition of the concrete being ground.
Selling the grinding discs separately means customers can purchase the appropriate tooling for their particular project rather than paying an estimated wear charge.
Concrete Surface Preparation
Grinding is one of the most effective methods of mechanically preparing a concrete floor.
The DFG 400 can be used before applying:
- Epoxy flooring
- Resin flooring
- Floor paint
- Industrial coatings
- Self-levelling compounds
- Screeds
- Adhesives
- Other floor finishes
Grinding removes loose material and contaminants while creating a suitable mechanical surface for subsequent flooring systems.
Remove Paint and Coatings from Concrete
Depending on the coating and grinding disc selected, the DFG 400 can also be used to remove many existing surface materials.
Applications can include removing:
- Old floor paint
- Thin floor coatings
- Surface contamination
- Dirt deposits
- Concrete laitance
- Previous floor finishes
For particularly thick or difficult coatings, speak to A-Z Hire before hiring. A floor planer or floor scrabbler may be a faster option depending on the material being removed.
Dust Extraction for Concrete Grinding
Concrete grinding creates a significant amount of very fine dust.
The DFG 400 incorporates a 50mm dust extraction connection and should be connected to a suitable industrial dust extractor whenever possible.
A-Z Hire can also supply suitable heavy-duty dust extraction equipment for concrete grinding.
Using proper extraction:
- Reduces airborne concrete dust
- Keeps the work area cleaner
- Improves visibility
- Helps the grinding discs work effectively
- Makes the overall job easier to manage
Twin Head or Single Head Concrete Grinder?
A-Z Hire has different concrete grinding machines available depending on the size and nature of the job.
Choose Our Single Head Concrete Grinder For:
- Small rooms
- Confined areas
- Smaller domestic jobs
- Localised grinding
- Individual high spots
- Areas where manoeuvrability is important
Choose the DFG 400 Twin Head Grinder For:
- Larger concrete floors
- Warehouses
- Workshops
- Commercial premises
- Industrial floors
- Larger renovation projects
- Faster floor preparation
For large open areas, the 400mm DFG 400 Twin Head Concrete Floor Grinder will generally provide significantly better productivity.
Can I Use the DFG 400 to Level a Concrete Floor?
Yes — within reason.
The DFG 400 is excellent for grinding down:
- High spots
- Ridges
- Raised areas
- Rough concrete
- Minor surface irregularities
However, grinding removes material from the high areas of the floor.
It cannot fill low spots.
If a floor has substantial dips or low areas, grinding may need to be combined with an appropriate screed or floor levelling compound.
Floor Grinder or Floor Planer?
This is an important distinction.
Choose the DFG 400 Concrete Floor Grinder when you want to:
- Smooth concrete
- Remove smaller high spots
- Prepare a concrete surface
- Remove light coatings
- Produce a more uniform floor surface
Consider a Floor Planer / Floor Scrabbler when you need:
- More aggressive concrete removal
- Removal of thicker coatings
- Heavy texturing
- Rapid removal of surface material
- More substantial reduction of the concrete surface
If you’re unsure, contact A-Z Hire before booking. Selecting the correct machine can save hours of work and reduce unnecessary wear on grinding discs.
Can DIY Customers Hire the DFG 400?
Yes.
The DFG 400 can be hired by contractors, tradespeople and DIY customers.
It is commonly hired for:
- Garage renovations
- Home extensions
- Preparing concrete before painting
- Smoothing rough concrete
- Removing construction marks
- Preparing floors before new finishes
However, this is a substantial professional machine weighing approximately 86kg, so consideration should be given to transportation and access to the work area.
Our hire team can explain the operation of the machine and help you select the appropriate grinding discs.
Concrete Floor Grinder Hire Dublin
Looking for concrete floor grinder hire in Dublin?
A-Z Hire supplies the DFG 400 Twin Head Concrete Floor Grinder for professional contractors, flooring companies, builders, maintenance companies and DIY customers throughout Dublin.
Our Walkinstown location provides easy access to professional concrete preparation equipment including:
- Concrete floor grinders
- Floor planers
- Floor scrabblers
- Handheld concrete grinders
- Concrete cutting equipment
- Industrial dust extraction equipment
Hire the DFG 400 from A-Z Hire Dublin
Get the right equipment and practical advice from A-Z Hire – tool hire in Dublin.
Grinding discs sold separately.
Available from:
A-Z Hire
Walkinstown Green
Walkinstown
Dublin 12
D12 KH98
Tel: 01 419 2800
Whether you need to grind a concrete floor, smooth uneven concrete, remove high spots or prepare a concrete floor for a new finish, contact A-Z Hire and we can help you select the correct floor preparation equipment.
A-Z Hire is also a STIHL Authorised Dealer and Service Centre, supplying professional equipment, servicing and tool hire in Dublin.
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