Low chrome grinding balls’ Diameter (mm), Chemical composition, Properties and Microstructure:
Engineering Machinery (Wear) Parts
Engineering Machinery (Wear) Parts
Casting Balls
Product Quality Standard：
1. The chemical composition of the high chromium type product should conform to the below table. We can also offer the products with special chemical composition in accordance with the requirements of the customers.
2. The nominal diameter, allowable deviation, maximum diameter, minimum diameter of the cast grinding steel ball should be in accordance with the following table.
3. The high chromium type of product can be manufactured with the mechanical properties following the requirements of customers.
4. Surface Quality & Internal Quality
4.1. The surface of the cast iron grinding ball is not allowed to have the casting defects such as the crack, and the obvious gas porosity, inclusion, shrinking cavity, cold shut, elephant skin, etc.
4.2. Internal Quality
It is not allowed to have the shrinkage cavity, shrinking porosity, gas porosity, inclusion, and other cavity defects on the section including plane pasting through the pouring gate and the ball center.
5. Testing Method and Inspection Rules.
5.1. Impact Test
5.2. Rockwell Hardness Test Specimen Preparation
5.3. Chemical Composition Inspection
5.4. Surface Hardness Inspection
5.5. Internal Quality Inspection
Let us know your detail demands and inquiry now.
Forged Grinding Balls for cement industry
Forged grinding balls commonly used low-carbon alloy, high manganese steel, high carbon and high
manganese alloy steel. On the basis of these material we have developed a series of competitive and efficient patent forged grinding balls.
Forged grinding balls
The products range from 20mm to 150mm, 1 inch to 6 inch, and we can also offer all size of products according to customers’ demands.
1. Features:
1) forged grinding ball has high hardness: surface hardness to 58-65HRC, volume hardness of 57-64HRC
2) impact toughness high: impact toughness more than 12J / cm2.
3) broken rate is low: the actual broken rate is not higher than 0.5%.
4) loss of forged grinding ball round rate is low.
5) dropping test in 8m high tester for more than 20,000 times.
2. Technical Parameters:
Nominal Diameter(mm): Φ20，Φ25，Φ30，Φ35，Φ40，Φ50，Φ60，Φ70，Φ75，Φ80，Φ90，Φ100，Φ120，Φ125，Φ130，Φ150.
3. Inspection Process
1) Surface quality inspection, 2) Dimensional inspection, 3) Low magnification analysis, 4) Dye-penetrant inspection, 5) Metallographic test
4. Technical Process of Forged Steel Ball
1) Raw material testing, 2) Mixture, 3) Heating, 4) Forged hot rolled, 5) Heat treatment, 6) Testing, 7) Storage & package.
Spare parts supplier for cement industry- Sino Machine Industries
Steel Casting
Material:
Carbon; alloy steels
Wear resistant steel (austenitic manganese)
Stainless steels (heat & corrosion resistance)
Standard Specifications: ASTM, DIN, BS, Chinese GB
Maximum Casting Weight: 130MT (286,600 lbs)
Mold Medium:
Materials – green sand, chemically bonded sand (sodium silicate, resin)
Methods– mechanized molding and core-making, hand molding and core-making, thermally bonded shell molds and cores
Heat Treatment:
Full anneal
Normalize
Normalize & temper
Quench & temper
Case hardening
Melting Equipment:
Electric arc or induction furnaces as appropriate
Machining Capability:
To meet the diversified markets, we can further rough machine or finish machine the castings, forgings and other wrought materials to meet the requirements of our customers.
Main Production:
Mining equipment – crusher, ball mills, earthmover, spindles & structural
Non Ferrous-Alloy Casting
Material:
Non-ferrous alloy (aluminum, copper, titanium)
Standard Specifications:
ASTM, DIN, BS, Chinese GB
Die Cast Machine Pressures:
5MT – 2,500MT
Final Treatment:
Shot; sand blasting
Chemical; electrochemical finishing
Powder coating
Plating
Polishing
Painting
Mold Medium:
Hot Chamber
Cold Chamber
Machining Capability:
To meet the diversified markets, we can further rough machine or finish machine the castings, forgings and other wrought materials to meet the requirements of our customers.
Main Production:
Transportation (automobile, bicycle) carburetor, hydraulic hardware
Construction – scaffolding, conveyor
Architectural hardware – locks, door fixtures, plumbing fixtures, electrical components
Copper Casting
Alloy Casting
Copper Casting
Alloy Casting
Alloy Casting
Crusher & Wear Part
The main products include toothed plates, side guard plates and depression bars or jaw crushers, rolling mortar walls (fixed cones) and crusher walls (movable cones) of cone crushers, lining plates of ball mills, rod mills and coal pulverizers, plate hammers, hammers and lining plates of reaction crushers and hammer crushers, hammers, grate bars and lining plates of metal crushers, etc. falling into around 15,000 varieties.
Our main Crusher & Wear Part as as following:
Reaction Crusher Wear Part, Cone Crusher Wear Part, Jaw Crusher Wear Part
All crusher & wear parts supplied by Sino Mahince Industries are made in China. Also we offer OEM/ODM parts. The crusher & wear parts (including crusher & wear spare parts) , shredderw wear parts which Sino Machine Industries supplied were produced per customer’s drawings or specifications.
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