Lavina Diamond Grinding Shoes Lavina / EDCO / Onfloor Three-Hole Trapezoid Double Bar
The ALSKAR DIAMOND Premium Trapezoid Double Bar Diamond Grinding Shoes are designed for professional concrete floor grinding, surface leveling, and substrate preparation.
Featuring two straight rectangular metal-bonded diamond segments mounted on a durable three-hole trapezoidal steel backing plate, these grinding shoes provide distributed grinding contact for general-purpose concrete grinding and progressive surface preparation.
Manufactured in a common mounting configuration for selected Lavina, EDCO Magna-Trap, and Onfloor grinding systems, these grinding shoes offer a practical tooling solution for contractors using compatible tool holders and mounting adapters.
Key Features
- Premium Quality Series: Professional metal-bond diamond grinding tooling for concrete floor preparation.
- Double Bar Design: Two straight rectangular diamond segments for distributed grinding contact.
- Three-Hole Trapezoid Backing: Steel mounting plate designed for matching grinding tool holders.
- Multiple Grinder Brands: Intended for selected Lavina, EDCO Magna-Trap, and Onfloor floor grinding systems.
- Diamond Grit Selection: 18/20 for coarse grinding, 30/40 for general-purpose grinding, and 60/80 for finer surface refinement.
- Bond Hardness Selection: Soft for hard concrete, Medium for medium-hard concrete, and Hard for soft or abrasive concrete.
- Concrete Grinding Applications: Surface leveling, concrete restoration, and preparation before polishing or coatings.
- Flexible Packaging: Order quantities and packaging arrangements based on customer requirements.
Mounting Type: Three-Hole Trapezoid
Segment Design: Double Bar — 2 Diamond Segments
Planned Diamond Grits: 18/20 | 30/40 | 60/80
Planned Bond Options: Soft | Medium | Hard
Machine References: Lavina | EDCO Magna-Trap | Onfloor
Important: Verify the exact machine model, tool holder, mounting-hole pattern, and any required adapters before ordering. ALSKAR DIAMOND supplies aftermarket compatible diamond tools, not original equipment manufacturer products.
Premium Double Bar Trapezoid Lavina Diamond Grinding Shoes for Professional Concrete Floors
The ALSKAR DIAMOND Premium Trapezoid Double Bar Lavina Diamond Grinding Shoes are developed for professional flooring contractors, concrete grinding specialists, and surface preparation applications.
Each grinding shoe features two straight rectangular metal-bonded diamond segments attached to a trapezoidal steel backing plate with three visible mounting holes.
The Double Bar design distributes abrasive contact across two diamond segments, making it a practical choice for general-purpose concrete grinding, floor leveling, and progressive surface preparation.
Three-Hole Trapezoid Mounting
This grinding shoe is supplied in a three-hole trapezoid configuration intended for matching mounting systems used on selected Lavina, EDCO Magna-Trap, and Onfloor floor grinding machines.
Actual compatibility depends on the installed tool holder, attachment arrangement, and any required adapter.
Metal-Bonded Diamond Construction
Industrial diamond particles are held within a metal-bond matrix.
As the matrix wears during grinding, new diamond cutting points are exposed to maintain abrasive action.
Progressive Concrete Grinding
The planned grit range includes:
- 18/20 Grit: Coarse concrete grinding
- 30/40 Grit: General-purpose concrete grinding
- 60/80 Grit: Finer metal-bond surface preparation
Soft, Medium, and Hard bond configurations are planned to accommodate different concrete hardness and abrasiveness conditions.
Professional Applications
These grinding shoes are designed for cured concrete floor grinding, surface leveling, restoration, and preparation before subsequent grinding, polishing, or coating applications.
Actual grinding performance depends on the substrate, diamond grit, bond hardness, grinder weight, and operating conditions.
Double Bar Diamond Segments with Three-Hole Trapezoid Steel Backing
The ALSKAR Trapezoid Double Bar Grinding Shoe features two straight rectangular metal-bonded diamond segments mounted on a trapezoidal steel plate.
Two-Segment Grinding Contact
The Double Bar configuration provides two separate abrasive contact surfaces.
Compared with an otherwise comparable single-bar design, Double Bar tooling generally has a larger combined contact area and distributes grinding pressure across two segments.
This makes it suitable for many general concrete grinding and surface preparation operations.
Rectangular Diamond Segment Geometry
The two grinding bars are positioned at different angles across the backing plate.
This arrangement provides distinct abrasive contact areas for grinding concrete floors.
Metal-Bonded Diamond Technology
Industrial diamond particles are retained in a metal-bond matrix.
The bond gradually wears during grinding to expose fresh diamond cutting points.
Tool performance depends on the selected diamond grit, bond hardness, concrete abrasiveness, and operating conditions.
Open Segment Arrangement
The gap between the grinding segments provides space for grinding residue to move away from the working areas.
Three-Hole Trapezoid Backing Plate
The backing plate features three visible mounting holes and a trapezoidal profile.
The mounting system must be matched to the actual grinding tool holder or adapter.
Available Product Finishes
The supplied product references include black and blue steel backing plate finishes.
Color may vary according to the actual grit and bond specification.
Typical Applications
- General Concrete Floor Grinding
- Concrete Surface Leveling
- Surface Restoration
- Progressive Metal-Bond Grinding
- Preparation Before Polishing
- Preparation Before Coatings
Correct grinding shoe selection requires matching the mounting system, diamond grit, and bond hardness to the specific application.
Diamond Grit Selection – 18/20, 30/40 & 60/80
Choosing the correct diamond grit helps control grinding aggressiveness, scratch depth, and the progression between concrete preparation stages.
The ALSKAR Trapezoid Double Bar series is planned around three commonly used diamond grit ranges.
18/20 Grit – Coarse Grinding
18/20 grit is intended for initial concrete grinding and relatively aggressive material removal.
Typical Applications:
- Concrete high-spot removal
- Initial surface leveling
- Coarse concrete grinding
- Rough substrate preparation
- Preparation before additional grinding steps
30/40 Grit – General-Purpose Grinding
30/40 grit is a versatile selection for regular concrete floor grinding and surface preparation.
Typical Applications:
- General concrete grinding
- Routine surface leveling
- Reducing marks from coarser grinding tools
- Concrete floor restoration
- Preparation for finer grinding stages
60/80 Grit – Finer Metal-Bond Grinding
60/80 grit is intended for additional surface refinement after coarse or general grinding.
Typical Applications:
- Reducing scratches from previous grinding stages
- Intermediate metal-bond grinding
- Smoothing cured concrete floors
- Preparing surfaces for appropriate transitional polishing tools
Recommended Grinding Progression
A common concrete grinding progression is:
18/20 → 30/40 → 60/80
Not every project requires all three stages.
The correct starting grit and grinding sequence depend on surface condition, required material removal, and the final finishing system.
Selection Tip: Choose diamond grit based on the grinding stage and bond hardness based on concrete hardness and abrasiveness.
Diamond Grit Selection – 18/20, 30/40 & 60/80
Choosing the correct diamond grit helps control grinding aggressiveness, scratch depth, and the progression between concrete preparation stages.
The ALSKAR Trapezoid Double Bar series is planned around three commonly used diamond grit ranges.
18/20 Grit – Coarse Grinding
18/20 grit is intended for initial concrete grinding and relatively aggressive material removal.
Typical Applications:
- Concrete high-spot removal
- Initial surface leveling
- Coarse concrete grinding
- Rough substrate preparation
- Preparation before additional grinding steps
30/40 Grit – General-Purpose Grinding
30/40 grit is a versatile selection for regular concrete floor grinding and surface preparation.
Typical Applications:
- General concrete grinding
- Routine surface leveling
- Reducing marks from coarser grinding tools
- Concrete floor restoration
- Preparation for finer grinding stages
60/80 Grit – Finer Metal-Bond Grinding
60/80 grit is intended for additional surface refinement after coarse or general grinding.
Typical Applications:
- Reducing scratches from previous grinding stages
- Intermediate metal-bond grinding
- Smoothing cured concrete floors
- Preparing surfaces for appropriate transitional polishing tools
Recommended Grinding Progression
A common concrete grinding progression is:
18/20 → 30/40 → 60/80
Not every project requires all three stages.
The correct starting grit and grinding sequence depend on surface condition, required material removal, and the final finishing system.
Selection Tip: Choose diamond grit based on the grinding stage and bond hardness based on concrete hardness and abrasiveness.
ALSKAR DIAMOND Premium Grinding Solutions & Flexible Supply
ALSKAR DIAMOND supplies professional diamond tools for concrete cutting, core drilling, grinding, polishing, and construction surface preparation.
Our Trapezoid Double Bar Diamond Grinding Shoes are developed for flooring contractors, equipment dealers, and professional concrete surface preparation applications.
Premium Product Series
The Premium series is positioned for professional concrete grinding applications requiring reliable metal-bond diamond construction, practical segment design, and suitable grit and bond selections.
Product Highlights
- Two straight rectangular diamond grinding segments
- Metal-bond diamond abrasive construction
- Three-hole trapezoidal steel backing plate
- Intended for selected Lavina, EDCO Magna-Trap, and Onfloor systems
- Grit and bond choices for different grinding stages
- Concrete floor grinding and surface preparation
- Equipment mounting compatibility guidance
Flexible Order Quantities
ALSKAR DIAMOND can arrange grinding shoe quantities according to customer requirements.
Customers are not restricted to a single fixed package quantity.
Flexible Packaging
Packaging arrangements can be coordinated based on the purchase quantity and project requirements.
Contractor & Wholesale Supply
Suitable for flooring contractors, equipment distributors, and diamond tool resellers.
Mixed Grit & Bond Orders
Customers can request different available grit and bond combinations to meet specific concrete grinding requirements.
Professional Tool Selection Support
For assistance, provide:
- Floor grinder brand and exact model
- Installed tool holder or adapter
- Concrete hardness and abrasiveness
- Required diamond grit
- Preferred bond hardness
- Order quantity
Contact ALSKAR DIAMOND for product selection, mounting compatibility assistance, flexible packaging, and wholesale quotations.
Floor Grinder Compatibility Guide
ALSKAR DIAMOND Trapezoid Double Bar
Diamond Grinding Shoes are supplied
for selected Lavina, EDCO Magna-Trap
and Onfloor grinding systems using
compatible three-hole trapezoid
tooling holders or adapters.
| Grinder Brand | Reference Models | Required Check |
|---|---|---|
| Lavina | L7 / L13 / L20 / L21 / L25 / L30 / L32 / L38 |
Verify Installed Holder |
| Lavina X-Series | Corresponding X-Series Models | Verify Tooling Generation |
| EDCO | Magna-Trap Grinding Machines | Verify Holder or Adapter |
| Onfloor | Selected Onfloor Floor Grinders | Verify Receiver or Adapter |
Important Mounting Information
This product is supplied in a
common three-hole trapezoid
mounting configuration.
Machine generations and installed
tool holders may differ.
A matching equipment brand or
model does not automatically
guarantee direct fitment.
Before ordering, confirm:
grinder model, holder design,
mounting-hole spacing,
plate dimensions and
any required adapters.
Do not assume that standard
bolt-on, Lavina Quick Change,
HTC EZchange and Redi Lock
systems are interchangeable.
Need Help Identifying the Right Tooling?
Contact ALSKAR DIAMOND with
your floor grinder model and
a clear photograph of the
installed tool holder.
ALSKAR DIAMOND supplies aftermarket
compatible diamond tools and is
not affiliated with the original
equipment manufacturers.
Frequently Asked Questions
1. What are trapezoid double bar diamond grinding shoes?
featuring two rectangular diamond
segments mounted on a trapezoid
steel backing plate.They are commonly used for concrete
floor leveling and surface preparation.
2. What is the advantage of Double Bar grinding shoes?
single-segment tooling, Double Bar
grinding shoes generally provide
a larger combined contact area.They are a practical option
for general concrete grinding
and consistent surface preparation.
3. Which floor grinder brands are these shoes intended for?
for selected Lavina,
EDCO Magna-Trap and Onfloor
floor grinding systems.Fitment depends on the installed
tool holder and mounting arrangement.
4. Which Lavina models are commonly referenced?
L7, L13, L20, L21, L25, L30,
L32 and L38, together with
corresponding X-Series machines.The installed holder and machine
generation must be verified.
5. Can these grinding shoes fit EDCO Magna-Trap machines?
supplied for compatible EDCO
Magna-Trap grinding systems.Confirm the actual tooling interface
and any required holder or adapter
before ordering.
6. Can these grinding shoes fit Onfloor machines?
Onfloor grinders using compatible
tool holders or adapters.Check the receiver plate and
tooling attachment system
before purchasing.
7. Is the three-hole trapezoid mounting universal?
is not automatically interchangeable
across all grinding machines.Plate dimensions, hole spacing,
holder profile and fastening
requirements must match.
8. What diamond grit options are planned?
18/20, 30/40 and 60/80 grit.Actual available specifications
are shown in the product
variation selector.
9. When should I use 18/20 grit?
coarse concrete grinding,
initial leveling and
high-spot removal.
10. What is 30/40 grit used for?
for general-purpose concrete
grinding, leveling and
surface preparation.
11. When should I choose 60/80 grit?
finer metal-bond grinding
and intermediate surface refinement.It helps reduce scratches
from previous grinding stages.
12. How do I choose the correct bond hardness?
As a general guideline:Soft Bond: Hard concrete.
Medium Bond: Medium-hard concrete.
Hard Bond: Soft or abrasive concrete.
Grinder weight, concrete composition
and operating conditions also affect
the optimal selection.
13. Can these grinding shoes remove thick epoxy or adhesives?
grinding shoes are primarily
intended for concrete grinding.For thick epoxy, soft adhesives,
heavy mastic and flexible coatings,
specialized PCD tooling
is generally more appropriate.
14. Can these grinding shoes be used wet or dry?
depends on the specific product
and equipment specifications.For dry concrete grinding,
use suitable dust extraction
and silica exposure controls.Wet grinding should only be
performed when both tooling
and equipment are approved.
15. Can I order different quantities or mixed grit and bond configurations?
order quantity and packaging
arrangements based on customer needs.Customers can request mixed
available grit and bond
configurations for different
concrete grinding applications.Contact us for project and
wholesale purchasing information.
| Diamond Grit | 18/20, 30/40, 60/80 |
|---|---|
| Bond Hardness | Soft, Medium, Hard |
| Mounting System | Three-Hole Trapezoid |
| Segment Design | Double Bar |
| Segment Count | 2 |
| Quality Grade | Premium |
| Abrasive Type | Metal-Bonded Diamond |
| Grinder Brands | Lavina / EDCO / Onfloor |
| Applications | Grinding / Leveling / Surface Preparation |
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