Casting steel grinding ball

Short Description:

Specifications:

1.Grade: 45#, 60Mn, B2, B3, B6

2.Dimensions:DIA 20mm-150mm

3.Hardness: HRC60-65

4.Breakage rate:<1%

5.Certificate:TUV ISO 9001, SGS

6.Application:Industries of cement building material, metallurgical selection in mine, grinding coal in power plant, chemical industry and machinery, etc.

We can also customize the steel balls according to your size and chemical composition.

Call us for information: Tel: +86-18973821771

Send email to us

Product Detail

Product Tags

Overview:

Type	Crusher liner board, lining plate
Origin	China	HS Code	84749000
Condition	New	Grinding ores	Quartz, Gold ore, Cement clinker, etc.
Machine Type	Ball Mill Liner	Certification	ISO 9001:2008
Main Materials	Mn13Cr2 , Mn18Cr2, Mn22Cr2, Cr22, Cr26
Processing Type	Casting	Surface Treatment	Polishing/Spray-Paint
Casting Inspection	Direct-reading Spectrum Instrument, Metallographic Analysis, Ultrasonic Inspection, Magnetic Particle Inspection, Mechanical Properties Inspection
Transport Package	Packed in Pallet/Case	Guarantee	Same as Original
Quality	High Level	Experience	Over 30 Years

Description：

The environment in primary ball milling can best be described by giving equal considerations to both impact and abrasive conditions. The relatively large ball sizes employed [3″ – 4″ (75 – 100 mm)] contribute a significant impact component to the overall wear. The number of impacts in primary ball mills are far more frequent but have less magnitude than those experienced in SAG mills. The increased frequency is due to the Increase in charge volume (35 – 40% versus 5 – 10%), higher mill speeds, and the larger number of balls per unit charge weight. The lower impact forces are due to a combination of both smaller ball masses and lower drop heights resulting from the use of smaller balls and smaller mill diameters, respectively.

The feed ore in primary grinding mills is typically very abrasive owing to its particle size, shape, and mineralogy. Wear speeds approaching or exceeding 20 µm/hr. have been measured for very abrasive Au. Cu, and Mo ores, while wear speeds on the order of 10-15 µm/hr. have been encountered in softer primary ores.

Steel grinding media used in primary grinding must be designed for maximum abrasive wear resistance while maintaining good toughness. Toughness is particularly important in grate discharge mills where pulp levels at the discharge end of the mill can approach zero.

Technical Parameters

Chemical Components
Type	Chemical components
Type	C	Si	Mn	Cr	Mo	Cu	P	S
Low-Cr	1.8-3.3	≤1.5	0.3-1.5	1-3	≤1.0	≤0.8	≤0.10	≤0.10
Medium-Cr	1.8-3.3	≤1.2	0.3-1.5	4-9	≤1.5	≤0.8	≤0.10	≤0.10
High-Cr	1.8-3.3	≤1.2	0.3-1.5	10-18	≤1.0	≤1.2	≤0.10	≤0.06
Superhigh-Cr	1.8-3.3	≤1.2	0.3-1.5	19-35	≤2.0	≤1.2	≤0.10	≤0.06

Crusher Parts:

We have precision machined replacement crusher spare parts including head, bowls, main shaft, socket liner, socket, eccentric bushing, head bushings, gear, countershaft, countershaft bushing, countershaft housing, mainframe seat liner and more, we can support your entire machine for mechanical spare parts.