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cup wheel grinding for stone applications
cup wheel grinding for stone applications

Cup Wheel Grinding for Stone Applications

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CUMI’s cup wheel grinding is designed for stone and welded joints of metal by means of portable grinders. Available in both straight and tapered shapes, CUMi’s Cup wheels are available in a wide range of grit sizes from Grit 16 to Grit 220 to meet all grinding/finishing needs.
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Brand: CUMI

Information Material:

Product Catalogue
Variant Type Speed Recommendation
Portable Marble 50 C36 K5 BRT
Granite
CUMI Code Grit Range Diameter Thickness Speed Hardness Structure
(mm) (inch) (mm) (inch) (mps)
C 24 - 220 100 - 127 4 - 5 38 - 63.5 1 1/2 - 2 1/2 50 J - L 5 - 6

Product Information

Features
- Threaded nut insert
- High strength phenolic resin
- Unique grinding aids
- Advanced manufacturing facility
Benefits
- Easy mounting
- Better safety
- Cooler cutting action
- Better control of geometry
Advantage
- Fast cut rate
- Smooth running
- Long tool life
- No vibrations
- Burn free & smooth finish

Product Uses

Industries
Stone
Materials
Construction Steel
Product Description

Cup Wheel Grinding stone

The CUMI Cup Wheel – Stone Series is engineered for surface leveling, edge grinding, chamfering, and polishing of granite, marble, kota stone, kadappa stone, tiles, and concrete blocks. Designed for portable grinders used on-site, it allows fast removal of uneven surfaces while maintaining stone integrity and finish.

Features & Advantages of Cup Wheel Grinding stone

  • Straight and tapered profile options → provides better tool contact → results in more uniform grinding on flat or curved stone surfaces
  • Wide grit range (16–220) → supports rough stock removal to fine finishing → helps technicians complete all stages with a single product family
  • High-bond abrasive matrix → delivers long product life → reduces grinder downtime & replacement cost
  • Stone-optimized grain composition → ensures cooler grinding & reduced chipping → improves final polish quality before sealing/installation
  • Designed for portable grinder use → allows on-site stone correction → ideal for mason workers, construction sites & marble shops

Industry & Application of Cup Wheel Grinding stone

Used widely in stone cutting yards, granite polishing workshops, flooring contractors, construction finishing teams, tile-laying crews & marble restoration services.

FAQs
01.
Can this cup wheel be used on granite and natural stones? Yes — it is specifically engineered for granite, marble, kota, kadappa, concrete blocks, and floor stones.
02.
What machines can be used with this grinding wheel? It is designed for portable angle grinders used at stone yards and construction sites.
03.
Does this cup wheel faq_titlesupport both rough and fine grinding? Yes — grit sizes 16–220 allow users to shift from aggressive removal to fine surface finishing.
04.
Does it chip or crack stone during grinding No — the abrasive is formulated to control heat and minimize chipping, protecting the surface.
05.
What applications are most common? Surface leveling, edge dressing, removal of lippage, smoothing cut edges before installation, and polishing preparation.

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CUMI Murugappa Logo

CUMI, a part of the 124-year-old Murugappa Group, began as an abrasives company in 1954.

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Important Links

Contact us

Phone Number

1800 3000 1131

Email Address

email@cumi.murugappa.com

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