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Different crush stone, different work conditions, need to select the right material suit to cast crusher jaw plates. For example, Mn14 jaw plates can crush soft stone, but can not suit to crush hard stone, because it wears out speed too quickly if use Mn14 jaw plates to crush hard stone. Qiming Machinery can supply different material crusher jaw plates to suit customers’ inquiries. Qiming Machinery jaw plates material includes manganese jaw plates, TIC inserts jaw plates, and alloy steel jaw plates.
Manganese Crusher Jaw Plates
Manganese steel’s ability to work harden from impact loading along with its exceptional toughness make it the best wear material choice for many demanding applications. The hardness of manganese steel in the solution annealed and water quenched condition is normally around 220 HB. It is possible to strain to harden this material to approximately 500 HB. In order to achieve this high hardness level, the impact loading must be high while the material wearing away from gouging abrasion is limited. It is typical in crushing applications where the main wear mechanism is gouging abrasion that the manganese steel will harden to some intermediate level, typically 350-450 HB.
Qiming Machinery supplies different grade manganese steel to crush jaw plates, as follows:
- Mn14
- Mn14Cr2
- Mn18
- Mn18Cr2
- Mn22
- Mn22Cr2
High Manganese Chemical Composition Mechanical
|
Mn (%) |
C (%) |
Cr (%) |
P (%) |
S (%) |
Si (%) |
|
|
Mn14Cr2 |
11-14 |
1.15-1.25 |
1.5-2.5 |
≤0.05 |
≤0.04 |
0.3-0.8 |
|
Mn18Cr2 |
17-19 |
1.15-1.3 |
1.5-2.5 |
≤0.05 |
≤0.04 |
0.3-0.8 |
|
Mn22Cr2 |
21-23 |
1.1-1.4 |
1.5-2.5 |
≤0.05 |
≤0.04 |
0.3-0.8 |
|
Mn14 |
11-14 |
1.15-1.25 |
0 |
≤0.05 |
≤0.04 |
0.3-0.8 |
|
Mn18 |
17-19 |
1.15-1.3 |
0 |
≤0.05 |
≤0.04 |
0.3-0.8 |
|
Mn22 |
21-23 |
1.1-1.4 |
0 |
≤0.05 |
≤0.04 |
0.3-0.8 |
Different Crush Stones, Different Manganese Steel
Blasted rock
- Difficult and abrasive: Mn18Cr2 or Mn22Cr2
- Difficult and non-abrasive: Mn18Cr2
- Medium and abrasive: Mn18Cr2 or Mn22Cr2
- Medium and non-abrasive: Mn18Cr2
- Easy and abrasive: Mn14Cr2 or Mn18Cr2
- Easy and non-abrasive: Mn14Cr2
Slabby soft rock: Mn14Cr2 or Mn18Cr2
Gravel
- Abrasive: Mn18Cr2
- Non-abrasive: Mn14Cr2 or Mn18Cr2
Slippery/ round rock
- Abrasive: Mn18Cr2 or Mn22Cr2
- Non-abrasive: Mn14Cr2 or Mn18Cr2
Asphalt recycling: Mn14Cr2 or Mn18Cr2
Concrete recycling:Mn14Cr2 or Mn18Cr2
Demolition waste recycling: Mn14Cr2 or Mn18Cr2
TIC inserts Crusher Jaw Plates
Qiming Machinery has improved our customer jaw plate by TIC(titanium carbide) insert. Qiming Machinery TIC inserts jaw plates are designed to improve efficiency and reduce costs by extending wear life and minimizing downtime. Compare with normal manganese jaw crusher liners, our TIC insert wear parts span life can be 2-3 times. Based on our customer feedback, the more hard material to crush, the long span life.
- Its working principle: Titanium carbide bars are got the impact at first. Because it has a high hardness (around 65-75 HRC), the bars can work for a long time. At the same time, the manganese body also gets little impact, the body becomes harder(From 200HB to 500HB).
- Its working conditions: This material very good in crush difficult and abrasive stone.
- Compare with Mn18Cr2 crusher jaw plates, its span life can 1.5-2.5 times.
- This material just suits wide tooth or super tooth jaw plates, not suit shape tooth jaw plates.
Alloy Steel Crusher Jaw Plates
These alloy steel jaw plates just use for magnetic separation stones, and the jaw plate weighs less than 500 kg. Its elements:
- C 0.40%
- Mn 1.9%
- Si 1.4%
- S 0.012%
- P 0.016%
- The rest
