Metallic Mould for Full Automatic Grinding Media Ball Casting Line

Product Introduction

Product Introduction

The ball mill is a key piece of equipment for milling materials after they have been crushed. This type of grinding machine is equipped with a certain number of steel mill balls as grinding media inside its cylinder.
Grinding media can be widely used in the production industries of cement, concrete products, new building materials, refractory materials, fertilizers, black and non-ferrous metal beneficiation, glass and ceramics, etc.
Grinding balls can be made by casting and forging. For the casting grinding ball, the production processing was the liquid steel into metallic molds or sand molds after melting. The sand molds are used to make small-size balls & cylinders as Φ6- Φ40 mm; metallic molds are used to make large-size balls & cylinders as Φ40- Φ150 mm;
Now the large-size grinding ball manufacturing has two different kinds of production: one is casting by hand with a metallic mould, and the other is casting with Full automatic iron mould casting line.
The Full automatic metallic mold casting line advantage as: High production efficiency, high output, minimal labor, uniform product appearance, and good product quality; production safety, better environmental protection.

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Core Features
Application Scenarios
Product Characteristics
Customization Options

Product Advantage

High production efficiency
The fully automatic metallic casting molds have high output ( 1- 10 tons per hour), and require a maximum of 10 workers. Production is safe & healthy and environmentally friendly.

Long useful life
This casting metallic mould useful life have 12-24 months.

Can be repair
The supplier can repair those iron mold with paid when the casting product shape & surface quality is not good. Buyer should send molds to supplier’s workshop and take them back by yourself.

Customized casting product size and shape
Supplier can follow customer’s requirements to make different sizes and shapes of casting product as: Grinding ball (Sphere) / Grinding cylpebs ( Cylinder) / Grinding egg ( Ellipsoid) / Polyhedron Shape and other special customized shapes.

#1 Grinding media Alloy Chemical Composition:
Cast grinding media Type	Item	Chemical Composition ( % )
		C	Si	Mn	Cr	Mo	Cu	Ni	P	S
High Chrome Ultra	ZQCr23	2.1-3.3	≤1.2	0.2-1.5	23 - 30	≤1.0	≤1.0	≤1.0	≤0.06	≤0.06
High Chrome Plus	ZQCr18	2.1-3.5	≤1.2	0.2-1.5	18 - 23	≤1.0	≤1.0	≤1.0	≤0.06	≤0.06
High Chrome	ZQCr10	2.1-3.6	≤1.2	0.2-1.5	10 - 15	≤1.0	≤1.0	≤1.0	≤0.06	≤0.06
Middle Chrome	ZQCr 5	2.1-3.6	≤1.5	0.2-1.5	4.0-6.0	≤1.0	≤0.8	-	≤0.08	≤0.08
Low Chrome	ZQCr 1	2.1-3.6	≤1.5	0.2-1.5	1.0-3.0	≤1.0	≤0.8	-	≤0.10	≤0.10

#2 Grinding media Physical Technical:
Cast grinding media Type	Item	Physical Technical
Cast grinding media Type	Item	Surface Hardness	Breakage Rate	Impact fatigue Falling ball times	Impact Value ( J /cm2 )	Micro- structure
High Chrome Ultra	ZQCr23	HRC ≥ 62	≤ 1.0 %	≥ 15000	≥ 3.0	M +C
High Chrome Plus	ZQCr18	HRC ≥ 60	≤ 1.0 %	≥ 15000	≥ 3.0	M +C
High Chrome	ZQCr10	HRC ≥ 58	≤ 1.0 %	≥ 15000	≥ 3.0	M +C
Middle Chrome	ZQCr 5	HRC ≥ 47	≤ 2.0 %	≥ 8000	≥ 2.0	P +C
Low Chrome	ZQCr 1	HRC ≥ 45	≤ 2.0 %	≥ 8000	≥1.6	P +C
Remark: M= Martensite ; C= Carbide ; P= Pearlite ; AF= Acicular Ferrite ; GJS= spheroidal graphite

Product Size

Φ（mm）

Φ40 / Φ50

/Φ60

Φ70 /

Φ80

Φ90 /

Φ100

Φ110 /

Φ120

Φ125/ Φ130/

Φ140 / Φ150

Diameter Tolerance

+ 1.5 mm

- 1.0 mm

+ 2.0 mm

- 1.0 mm

+ 2.5 mm

- 1.0 mm

+ 3.0 mm

- 1.0 mm

+ 3.5 mm

- 2.0 mm

#4 Grinding balls Weight:
Size (mm)	Φ20	Φ25	Φ30	Φ40	Φ50	Φ60	Φ70	Φ80
Weight (kg /pcs)	0.034	0.063	0.11	0.26	0.51	0.86	1.37	2.05
Q’ty (pcs) per mt	31506	15873	9091	3891	2000	1153	729	487
Size (mm)	Φ90	Φ100	Φ110	Φ120	Φ125	Φ130	Φ160
Weight (kg/pcs)	2.9	4.0	5.3	6.8	7.75	8.74	13.5
Q’ty (pcs) per mt	345	250	188	147	129	114	74

Anhui Ningguo Zhongrui Wear-Resistant Materials Co., Ltd.

About Us

Anhui Province's Ningguo City Zhongrui Wear-resistant Materials Co., Ltd. is located in Ningguo City, which is known as the capital of wear-resistant castings in China. The company mainly produces high-chromium, medium-chromium, and low-chromium alloy cast balls, cast sections; ball mill liners; crusher guards, hammers, etc. It also has a casting ball workshop, casting workshop, white mold cutting workshop, heat treatment workshop, raw material workshop, finished product workshop, and physical property testing room.

The company is equipped with 2 fully automatic iron mold sand coating production lines, 4 mechanical arm shell molding machines, 1 fully automatic lost foam mold production line, 1 fully automatic heat treatment quenching + reheat treatment production line, 2 automatic flipping annealing furnaces, 3 sets of VIP-1800 series melting furnaces, cabinet-type PRO spectrometer, carbon-sulfur analyzer, hardness tester, far-infrared temperature measuring instrument, etc. The production and testing equipment is complete and comprehensive. Temperature-controlled melting, constant-temperature pouring, automatic temperature-controlled quenching, and annealing have been achieved, and many technologies are at the forefront of the industry.

The product specifications are complete, meeting the needs of customers for different materials of cast balls, cast sections, ball mill liners, crusher guards, hammers, etc., ranging from Ф8mm to Ф150mm. The company now has an annual production capacity of 60,000 tons of cast balls and castings.

In its development, the enterprise has always adhered to the development strategy of "using science and technology to build the enterprise" and "strengthening innovation to build the enterprise". It has continuously strengthened service awareness and quality awareness, and has successively obtained ISO9001 quality certification, ISO14001 environmental certification, ISO45001 occupational health and safety management certification; and has received many certificates such as "Safety Production Standardization".

We adhere to the business philosophy of "trustworthiness as the foundation, integrity as the priority", requiring every employee to be honest in their conduct and diligent in their work, and to be responsible for producing high-quality and qualified products to increase production and efficiency for customers. We strive to become a century-old enterprise with high quality, strong quality, good reputation, and a beautiful environment.