Grinding Media

-JOYO'S Manufacturing-Grinding Media

JOYO is the supplier offering the full range of grinding balls in particular and grinding media in general: cast and forged, low and high chromium, balls/boulpebs/rods and ceramic grinding beads and balls.

Grinding Media

- Grinding balls
- Grinding rods
- Gringding cylpebs

Grinding Balls

- Forged
- Cast
- Ceramic

With our extensive experience in grinding ball manufacturing, we are committed to providing customers with excellent grinding solutions. Here are our core advantages, designed to meet your needs:

- Diverse Selection：Wide range of materials and sizes for varied applications.
- Excellent Quality：High hardness, wear resistance, and consistent performance.
- Efficient Grinding：Optimized for high throughput and energy savings.
- High Purity Solutions：Non-contaminating, inert ceramic media.
- Customized Solutions：Tailored grinding balls for specific needs.
- Technical Support：Expert guidance from selection to optimization.
- Reliable Supply Chain：Timely delivery with robust inventory management.
- Cost-Effective Solutions：Competitive pricing without compromising quality.

Grinding media are widely used in industries such as cement, mining, chemicals, pharmaceuticals, and food. We are well aware of the diverse needs of different industries for grinding media, so we provide customized solutions.

: Cast grinding balls

Chromium content: 1% – 28%
Hardness: HRC62-65
Diameter: 20mm-140mm
Features: after heat treatment, it has high hardness, grinding resistance and no loss of roundness
Application: cast grinding balls are widely used in ball mill grinding systems in mining, cement, building materials, chemical industry and other fields.

Ingredients/Products	Cr10	Cr14	Cr18	Cr25
C	2.0-2.9	2.0-2.9	1.9-2.7	1.9-2.6
Si	0.4-1.0	0.4-1.0	0.4-1.0	0.4-1.0
Mn	0.3-0.7	0.3-0.7	0.3-0.7	1.3-2.0
P&S	<0.1	<0.1	<0.1	<0.1
Cr	10	14	18	25
Surface Hardness	58-62	58-62	58-62	59-61
Center Hardness	N/A	N/A	N/A	58-60

: Forged grinding balls

Carbon content: 0.38% – 1.05%
Hardness: HRC62-65
Diameter: 20mm-180mm
Features: after quenching, it has high hardness, abrasion resistance and low damage rate
Application: forged grinding balls are widely used in ball mills and SAG grinding mill systems in mining, building materials, chemical industry and other fields.

Ingredients/Products	B6	B3	N-B2	B2	60Mn	40Cr	40Mn2	45#
C	0.65-0.85	0.58-0.66	0.75-0.84	0.75-0.84	0.58-0.65	0.37-0.44	0.37-0.44	0.42-0.5
Si	0.15-0.45	1.6-1.9	0.15-0.37	0.17-0.37	0.17-0.37	0.17-0.37	0.17-0.37	0.17-0.37
Mn	0.8-1.2	0.7-0.8	0.8-0.92	0.8-0.92	0.6-1.2	0.5-0.8	1.4-1.8	0.5-0.8
P&S	0.015	Max0.025	Max0.030	Max0.035	Max0.035	Max0.035	Max0.035	Max0.035
Cr	0.6-1.1	0.75-0.9	0.65-0.75	0.5-0.65	Max0.025	0.8-1.1	Max0.30	Max0.25
Surface Hardness	58-60	57-60	58-62	58-62	55-58	55-57	50-55	50-55
Center Hardness	55-57	54-56	58-59	58-59	40-45	35-42	30-35	30-35

: Grinding cylpebs

Chromium content: 1% – 28%
Hardness: HRC40-65
Specifications: φ10mm×H12mm – φ50mm×H60mm
Application: cast grinding cylpebs are widely used in ball mill grinding systems in cement, building materials, thermal power plants and other fields.

Name	Designation	HRC	Impact Value (J/cm²)	Microstructure	Falling Times
Chromium Alloy Casting Grinding Cylpebs	ZDCr15-26	≥60	≥4.0	M+A+C	≥20000
	ZDCr12	≥58	≥3.5	M+A+C	≥18000
	ZDCr5-8	≥47	≥2.0	P+C	≥12000
	ZDCr2	≥45	≥2.0	P+C	≥10000

: Grinding rods

Carbon content: 0.45% – 0.70%
Diameter: 40mm-120mm
Features: after quenching and tempering, it has the characteristics of high hardness, good toughness, grinding resistance and continuous rod
Application field: high manganese steel rod is used in the grinding of rod mills such as silver ore, bauxite, quartz placer and building materials.

Grade	C	Si	Mn	S	P	Cr	Mo
MBGA	0.70~0.95	0.20~0.75	0.50~1.00	≤0.035	≤0.035	≤0.80	≤0.30
MBGB	0.70~0.95	0.20~0.75	0.50~1.00	≤0.035	≤0.035	≤0.80	≤0.30
MBZA	0.38-0.70	0.30-1.90	0.50-1.50	≤0.035	≤0.035	≤1.2	≤0.30
MBZB	0.38-0.70	0.30-1.90	0.50-1.50	≤0.035	≤0.035	≤1.2	≤0.30

: Ceramic media

Material Composition: high-purity alumina (Al₂O₃) or zirconia (ZrO₂)
Hardness:Hardness: 9 - 9.5 Mohs
Diameter: 5mm - 100mm
Features: High hardness, excellent wear resistance, low wear rate, and chemical stability. Non-contaminating for high-purity applications.
Application: Used in ball mills, vibratory mills, and other grinding systems in ceramics, glass, chemicals, pharmaceuticals, and electronics industries.

Parameter	HCGA280	HCGA320	HCGA360	HCGA370	HCGA375
Al₂O₃ (%)	60±0.5	75±0.5	92±0.5	90±0.5	95±0.5
Mohs Hardness	7	8	9	9	9
Bulk Density (g/cm³)	>2.8	>3.2	>3.6	>3.7	>3.7
Wear (%)	< 0.2	< 0.15	< 0.1	< 0.05	< 0.1
Diameter Size	Φ1-10mm	Φ1-10mm	Φ0.5-60mm	Φ1-30mm	Φ1-60mm

Designed to meet your industrial grinding needs

Our grinding balls boast superior wear resistance, precise sizing, and optimized chemistry, enhancing
efficiency and cutting costs. Ideal for any scale of grinding, they ensure consistent performance
and reliability for sustainable business growth.

Free consultation

Name

E-mail

Location

Our strict quality control
Establish a strict quality control system, and we must accurately control every link

√Raw material inspection
√Dimensional inspection
√Rockwell hardness test
√Brinell hardness test
√Wear test
√Impact test

View our grinding balls

-Rigorous production process

We have adhered to strict quality control for 30 years

We start with high-quality steel and strictly control every step from melting and casting to heat treatment and finishing.
This streamlined process ensures that our grinding balls are not only durable and reliable, but also optimized for best performance in demanding industrial applications.

: Melting and casting
The molten metal is poured into a pre-designed mold to form the initial shape of the grinding ball.

: Raw material selection and preparation
Raw materials are strictly tested to ensure that the ingredients meet the standards.

: Heat treatment
Heat treatment usually includes two steps, quenching and tempering, to improve hardness and toughness
2

: Machining and shaping
The grinding ball is machined to ensure its dimensional accuracy and sphericity
3

: Surface treatment
Surface treatment of the grinding ball, such as sandblasting, phosphating or coating
4

View our grinding balls

QINGDAO JOYO METAL CO., LTD is a professional manufacturer engaged in the production, research, development, sale, and service of high-quality industrial metal products.

Tel: 0086-532-82661289
E-mail: manager@joyometal.com
Skype: jingxiaolei2010
http://www.joyometal.com
Add: Zhaoyin Mansion, 36, Hongkong Middle Road, Qingdao city 266071, China

© 2022 QINGDAO JOYO METAL Co., Ltd. All rights reserved | Privacy Policy

joyo

joyo

joyo

joyo

joyo

GET YOUR FREE QUOTE

We will contact you with in 24 hours.

// 禁止页面操作 // 屏蔽右键 // 屏蔽选中 // 屏蔽复制 // 屏蔽剪切 // 屏蔽粘贴