中文
Italian
Türkçe
Português
Español
Deutsch
العربية
Tiếng Việt
Français
Русский
Ms.Lizzy
Hi, this is Lizzy from Dinosaw ( Not a Robot ). Which Machine ( model ) do you want? Please WhatsApp us now
Open Hours:8:30am-20:30pm
WhatsApp: +86 198-5901-3937
Diamond Cup Wheel for Concrete & Stone Grinding
High-Performance Diamond Grinding Cup Wheel for Concrete and Stone Chamfering and Leveling
Diamond cup wheels are grinding tools for concrete, masonry and stone. They level floors, remove paint/epoxy, and shape edges. Common types include double‑row for smoother finishes, turbo for faster removal, and PCD for tough coating stripping. They fit angle grinders and floor grinders.
fast material removal with clean finishes, long life and safer work. Balanced designs reduce vibration. Match bond hardness and segment style to the material to maximize efficiency and lower project time and cost.
Compatible Materials & Products
From Concrete Leveling to Coating Removal
Concrete > Surface Leveling
Leveling uneven concrete surfaces is a critical step in flooring projects. Traditional methods are often inefficient and produce inconsistent results, compromising the quality of subsequent installations.
Our double-row diamond cup wheels are specifically designed for this task, featuring a large grinding surface and optimized segment layout to rapidly eliminate high spots. A medium-soft bond with medium grit diamonds ensures effective grinding while achieving a smooth surface, suitable for both handheld angle grinders and floor grinding machines.
This significantly improves floor flatness, providing an ideal base for tiles, flooring, or coatings, thereby boosting efficiency and final finish quality.
Masonry > Coating Removal
Removing old paint, adhesives, or waterproof coatings from masonry walls is a tough job. Manual scraping is time-consuming, and chemical methods pose environmental and safety risks.
We recommend our turbo-style diamond cup wheels, whose unique turbo segment design offers faster grinding speed and effective debris removal. A hard bond formulation extends the tool's life on abrasive materials. This design quickly strips surface adherents without excessively damaging the substrate.
This simplifies prep work for renovations, reducing labor costs, and creating a clean surface for new finishes.
Hard Concrete > Heavy-Duty Grinding
For high-strength concrete with hard aggregates, conventional grinding wheels wear out quickly and perform poorly, a major challenge in heavy-duty grinding jobs.
We have developed specialized cup wheels with PCD (Polycrystalline Diamond) segments that work by scraping rather than grinding for extremely efficient removal. The robust body of these wheels withstands high impact, making them suitable for large floor grinders.
This enables clients to achieve several times the efficiency of traditional wheels, significantly shortening project timelines and reducing overall costs.
Stone > Grinding & Finishing
Stone fabrication needs floor leveling, edge chamfering, and staged grinding from coarse to fine to prepare slabs for polishing.
Use double-row cups for fast surface leveling, single-row/fine-grit for precise edge work, turbo with soft bond for coarse stock removal, and finer grits with medium-hard bond to refine scratches.
One tool family covers all steps, delivering uniform flatness, chip-free edges, and a smooth finish while reducing time and cost.
Epoxy/Paint > Floor Preparation
Before applying a new epoxy coating, the old layer must be completely removed and the surface roughened to ensure adhesion, a core challenge in floor renovation.
Our T-segment diamond cup wheels are optimized for this. Their unique T-shape prevents sticky debris from clogging the grinding face, maintaining efficient grinding power. A coarser diamond grit helps rapidly remove coatings and creates an ideal rough surface.
This one-step solution for coating removal and surface prep ensures the adhesion and durability of the new epoxy floor, preventing future delamination issues.
Asphalt > Bumps Removal
Bumps on asphalt roads, caused by settlement or repairs, affect driving safety. Fast and economical repair of these local issues is vital.
We recommend a hard-bond turbo diamond cup wheel. The hard bond resists asphalt's abrasive and sticky nature, while the turbo design helps remove material quickly at lower temperatures, preventing melting. It's suitable for handheld grinders for flexible, spot repairs.
This offers a cost-effective solution for road maintenance that quickly restores pavement smoothness.
Specs and options
Specifications customizable upon request.
| Diameter | Grit | Joint | |
|---|---|---|---|
| Inches | mm | ||
| 3" | 80 | 30/40#, 40/50#, 60/80#, 100#120# etc. | 20mm, 22.23mm, M14, 5/8"-11 etc. |
| 4" | 100 | ||
| 5" | 125 | ||
| 6" | 150 | ||
| 7" | 180 | ||
| 9" | 230 | ||
Aggressive Grinding, Smooth Finish.
Unlock peak efficiency in every grinding task.
Rapid Material Removal
Engineered with aggressive segment designs for maximum grinding speed, reducing your project time significantly.
Exceptional Durability
Our advanced metal bond matrix and high-quality diamonds ensure superior wear resistance and long service life.
Versatile Bond Formulations
Match material hardness and finish with soft/medium/hard bonds and grits from coarse to fine.
Operator Comfort
Precisely balanced to minimize vibration, reducing operator fatigue and improving control for finer finishes.
Optimized for Dust Extraction
Designed with large gullets and/or multiple holes to work efficiently with dust shrouds for a cleaner worksite.
Multiple Arbor Sizes
Offered with threaded and non-threaded arbors to fit a wide range of popular angle grinders.
FAQs
Common Questions About Diamond Cup Wheels
How do I choose the right diamond cup wheel for my job?
Choosing the right cup wheel depends on the material and the task. For hard concrete, a soft bond wheel is best; for soft, abrasive materials like asphalt, a hard bond is needed. For the application: use double-row wheels for smooth finishing, turbo wheels for faster grinding, and PCD wheels for aggressive coating removal. Selecting the correct wheel ensures optimal performance and saves time and money.
For example:
- Hard Concrete Leveling: Soft bond, double-row wheel.
- Paint/Epoxy Removal: PCD or T-segment wheel.
- General Masonry Grinding: Medium bond, turbo segment wheel.
What’s the difference between single row, double row, and turbo segments?
The segment style directly impacts grinding speed and finish quality.
- Single row is more aggressive for quick material removal but may leave a coarser finish.
- Double row provides a smoother finish and longer life, great for leveling.
- Turbo segments balance speed and a smooth finish, and their continuous rim helps prevent chipping while improving cooling.
Your choice depends on whether speed or finish quality is the priority.
Can I use a diamond cup wheel for both wet and dry grinding?
Most cup wheels work for both wet and dry use.
Dry grinding is convenient but creates hazardous silica dust, requiring a quality dust shroud and vacuum. Wet grinding is generally preferred where allowed, as it uses water to suppress dust, cool the segments, and extend the wheel’s life, which often results in a smoother finish.
Regardless of the method, always keep the machine's guard in place and respect its RPM limits.
What are PCD cup wheels and when should I use them?
PCD (Polycrystalline Diamond) cup wheels excel at removing thick, soft, or sticky coatings like epoxy, paint, and glue.
Unlike traditional wheels that grind, PCDs scrape or strip material, which prevents clogging and removes coatings quickly. However, this aggressive action leaves a coarse profile, so they are not suitable for routine concrete leveling.
For best results, use a PCD or T-segment wheel for initial coating removal, then switch to a conventional cup wheel for surface preparation and smoothing.
What RPM should I run my angle grinder at for a diamond cup wheel?
Always operate the cup wheel within the maximum RPM specified on the wheel itself, as exceeding this speed is dangerous and violates safety standards like EN 13236. Most 4 to 7-inch angle grinders operate between 6,000 and 12,000 RPM, which is generally compatible. The max RPM rating balances the strength of the segments, bond, and steel core. For hard materials like granite or aged concrete, a slightly lower speed can improve control and reduce heat buildup, leading to a better finish.
How do I know when my diamond cup wheel is worn out?
A cup wheel should be replaced when the diamond segments are worn down close to the steel core, or when you notice a significant drop in performance requiring much more pressure to grind. Continuing to use a worn-out wheel is ineffective and unsafe, as the steel core can damage the work surface and the tool. Regularly inspect the segment height and listen for changes in sound or vibration.
If the wheel glazes over (stops cutting), consider switching to a softer bond for that material.
What is the difference between soft bond and hard bond in a cup wheel?
The "bond" is the metal matrix that holds the diamond crystals, and its hardness should be opposite to the material being ground.
Use a soft bondfor hard materials like granite or hard concrete; the bond wears away faster to expose new, sharp diamonds for efficient cutting.
Use a hard bond for soft, abrasive materials like asphalt or green concrete; the bond wears slowly, extending the tool's life.
Using the wrong bond causes poor performance: a hard bond on hard material will "glaze over" and stop cutting, while a soft bond on soft material will wear out too quickly.
Certifications & Standards
Unlock peak efficiency in every grinding task.
CE Certification
100+ Tech Patents
ISO 9001:2015
DINOSAW product lines fully comply with international engineering standards, passing rigorous third-party quality certifications to ensure exceptional performance and durability for all industrial equipment operating in high-load environments.
Expertise & Applications
75+
Countries Served Worldwide
20+
Industry machinery expertise
DINOSAW delivers lifecycle quality traceability and technical support for machinery equipment and diamond tools, covering cutting, drilling, engraving, polishing, and processing requirements for precision machining across industries.
Our products serve traditional industries (mining, stone processing, building materials), high-precision manufacturing (quartz glass, semiconductor), advanced materials (graphite, carbon fiber composites), and specialized applications (nuclear decommissioning, railway construction machinery).
Complete Production Solutions & Equipments
Choose equipment combinations for your product needs to establish efficient automated production lines and maximize profitability.
Ready to Revolutionize Your Grinding Projects?
Achieve faster results, superior finishes, and unmatched safety. Contact our experts now.
Contact DINOSAW
Connect with DINOSAW experts to find the perfect processing solution for your specific material and production needs.
DINOSAW: Trustworthy Diamond Tools Manufacturer
Discover how DINOSAW can accelerate your projects. Our tailored product line, cutting-edge R&D, robust manufacturing, end-to-end service, global support, and industry certifications are at your service.
Other Machines or Tools
Are you looking for more new information machines or tools?
English
Hello 👋 How can we help?