cup wheel grinding fpr Stone Applications

Cup Wheel Grinding for Stone Applications

Name: Cup Wheel Grinding for Stone Applications
Brand: CUMI Abrasives
Author: CUMI Abrasive Team

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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.

Brand: CUMI

Information Material:

Product Catalogue

Variant	Type	Speed	Recommendation
Portable	Marble	50	C36 K5 BRT
Portable	Granite	50	C36 K5 BRT

CUMI Code	Grit Range	Diameter		Thickness		Speed	Hardness	Structure
CUMI Code	Grit Range	(mm)	(inch)	(mm)	(inch)	(mps)	Hardness	Structure
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—Benefits

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

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.