7″ Inch Concrete Grinder Wheel for Surface Preparation

Description

This 7-inch diamond cup wheel features a unique spiral segment design, optimized for efficient grinding of concrete and terrazzo floors. The spiral shape ensures smoother operation and enhances debris removal during grinding, delivering faster results. Equipped with high-quality diamond segments, this cup wheel provides exceptional durability and wear resistance, making it suitable for heavy-duty applications such as surface leveling, coating removal, and rough grinding.

The wheel is constructed with a robust steel cup body featuring multiple cooling holes that allow effective heat dissipation, increasing its lifespan and performance. Compatible with standard connections such as M14, 5/8″-11, or 22.23mm, it is versatile enough to fit various grinders. Additionally, a wide selection of diamond grits (6#–220#) and bond types are available to handle different surface hardness levels.

OEM/ODM services are also supported, allowing customization of logos, colors, and packaging to promote your brand. Ideal for contractors and professionals seeking high-efficiency grinding tools.

Optional bond types

Different hardnesses of bonds are used for grinding different hardnesses of concrete. We mainly provide six bonds on our concrete grinding cup wheels, including one Extremely Soft Bond for extremely hard concrete. They are Very Hard Bond, Hard Bond, Medium Bond, Soft Bond, and Very Soft Bond.

There are 2 different code systems to be used for recognizing the tools. To indicate the bond type of the grinding segments, use Bond Codes. To indicate the hardness of the concrete floor, use the Floor Codes. You can use either of them, just make sure you understand.

Concrete hardness and corresponding diamond bonds

Concrete Hardness	Extremely Hard	Very Hard	Hard	Medium	Soft	Very Soft
MOH'S	7-9	5-7	4-5	3-4	2-3	1-2
PSI	6500-9000	5000-7000	4000-5000	3000-4000	1500-3500	1000-2000
MPA	C50-C65	C40-C55	C30-C50	C20-C40	C15-C25	C10-C20
Bond Type	Extremely Soft Bond	Very Soft Bond	Soft Bond	Medium Bond	Hard Bond	Very Hard Bond
Bond Codes	XSB	VSB	SB	MB	HB	VHB
Floor Codes	XHF	VHF	HF	MF	SF	VSF
Color Represented

The painting color for each bond is for your reference. If you are a concrete contractor and don't have the requirements on the colors, we will paint the tools according to the chart. If you are a reseller, we will confirm with you about the painting color before arranging the production. You can customize the painting colors, and it's totally free. Please check the following picture to know what colors we do.

Optional painting colors

Here we sort a series of our general painting colors for your reference. You can choose the color from the chart or customize other painting colors by providing us with the code of Pantone colors or others

Generally used colors for concrete grinding diamonds

Red	A001	A002	A003	A004
Orange	B001	B002
Yellow	C001
Green	D001	D002	D003
Blue	E001	E002	E003
Brown	F001	F002	F003
Purple	G001
Black	H001 (Bright Black)	H002 (Matte Black)
Grey	J001	J002(Silver)
White	K001

Packaging methods – 7″ concrete grinder wheel

Concrete grinding wheels are available in four main sizes: 100mm, 125mm, 180mm, and 230mm. Each cup wheel is individually packed in a sturdy hard box, available in white, brown, or green, with protective pearl cotton ensuring safe transport. The hardness of the three different colored boxes is as follows: the white box is normal, the brown box is harder, and the green box is the hardest. You can choose from these three materials based on your preference.

Each box features a label displaying a product image, which clearly indicates the type of cup wheel, its diameter, grit, and bond type. This labeling makes it easy for customers to identify and recognize the concrete grinding cup wheels they need.