Boltless Ni Hard Liners Cr-Mo Alloy Steel Hammers For Shipment
Cr-Mo Alloy Steel Hammers for Shipment
1. The hardness of Ni-hard castings is more than HRC56.
2. Our materials conform to
GB/T 8263-1999,
AS 2027/Ni-Cr1-550,
AS 2027/Ni-Cr2-500,
AS 2027/Ni-Cr4-500,
AS 2027/Ni-Cr4-600,
AS 2027/Ni-Cr4-630,
ASTM A 532 1-A, B, C, D,
ASTM A 532 2-A, B, C, D, E,
ASTM A 532 3-A.
3. International Standard: AS 2027-2002/Ni hard 4.
4. Microstructure: Eutectic Carbide + Martensite + Residual Austenite
5. Specific weight or density: 7.3~7.5g/mm2
6. Break Point: 25~40kg/mm2.
The Combined Self-fastened Boltless Ball Mill Liners
This product, invented by Mr. Chen Changshun, senior engineer and the director of the company, is known
as “China Best Liner”.
It includes two parts, high wear resistance boltless plates, and highly expandable riveting plates, which are
self-fastened and strengthened to withstand impact from mill balls.
We possess famous patented product------
Combined Self-fastened (Boltless) Ball Mill Liners, or Called CHINA BEST LINER.
In 2012, we registered a new patent about Liner Technology.
In December of 2000, we successfully registered the international patent in Canada.
In 1988 and 1997, we claimed domestic patents for ball mill liners .
The outstanding advantage of our liners is boltless.
The general advantages in ball mills are as follows:
| Output Increased | 5~20% |
| Power Consumption Reduced | 5~20% |
| Maintenance Decreased | Above 98% |
| The liners are easily installed and existing mills need no modification. |
The additional advantages in cement mills are as follows:
| No leakage of slurry |
| No repairs during service periods |
| Better reliability and stability |
| Production Improvement |
| Noise reduction |
In the recent 20 years, our liners have been widely used in large, medium and small ball
mills in Chinese power generation, mining,cement, chemical engineering and metallurgical
industries and super fine pulverizing equipments. It is the only recommended liner product
in the latest standard of the electric-power industry in China.
Materials 1: Double-Media Quenching Chromium-Molybdenum Alloy Steel Series
We specially design the material for ball mill liners in mines, coalfired power plants and cement
plants, etc.. With our special doublemedia quenching process, the material can not only achieve
ideal hardness (HRC48~55) but also ideal toughness value (AK30~100J). It can completely meet
the requirement of liners of large and middlesize ball mills at home and abroad. The match of Middle
Chrome Liners and High Chrome Cast Balls has been the typical model in coal mills and cement mills.
Meanwhile, the material is applicable to the teeth plates, armored plates and hammers of crushers
and excavator bucket teeth.
Materials 2: Pearlitic Chromium-Molybdenum Alloy Steel Series
The Pearlitic Chromium-Molybdenum Alloy Steel Liners are widely used in AG Mill,SAG Mill and
Ball Mills.
Hardness: HB310-375 (equivalent to HRC33-42)
Impact resistant Value: Ak≥60J (60×10×10mm) in normal ambient temperature.
We can produce pearlitic Cr-Mo steel as per AS2074 Gr. L / 2B.
Materials 3 : High Chrome White Iron Series
High Chrome white iron we can produce include 15%Cr, 18%Cr, 20%Cr and 26Cr. Under same
working condition, the wear performance of High Chrome mill liners is four times of that of high
manganese steel liners and twice of that of low Chrome alloy steel liners.Meanwhile, we can
produce high Chrome castings as per AS2027, ASTM A532 and BS4844.
Customer-made Mill Liners
In addition to our patented Boltless Mill Liners, we can produce liners as per the request of
customers.So far, we have been the regular suppliers of mill liners for Magotteaux and Foster
Wheeler Power Group.Now, we have supplied steel caps inserted in rubber lifters for SAG mills
and AG mills to some mines in Australia and New Zealand.
Wear Parts for Crusher
Jaw plates and cheek plates for jaw crushers, blow bars and impact plates for impact crushers,
cone liners for gyratory crushers, hammers for hammer crushers and concaves and mantles for
cone crushers.
Depending on the specific working conditions, all wear parts can be ordered as Manganese Steel,
high Cr cast iron or
Cr-Mo Alloy Steel.
Technical Parameters
Our foundry has complete melting, heat treatment and test equipments, such as mid-frequency induction
electrical furnaces, quenching and tempering furnaces, blast shot, spectrometer, Rockwell and Brinell
Hardness tester, impactor, UT tester and metallographic microscope. We achieved the certificate of
quality management system ISO 9001:2000. We have been exporting castings to oversea markets,
such as Brazil, Australia and South Africa.
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