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Durable High-Manganese Jaw Crusher Liners: Engineered for Extreme Impact
In the high-pressure environment of primary crushing, the inner walls of your machine face constant bombardment. High-manganese jaw crusher liners (including both fixed and swing plates) are the essential wear-resistant components that define the service life of your equipment. At Shandong Jiujiu Machinery Co., Ltd., we manufacture these liners to act as a resilient "armor," specifically designed to thrive under the intense compressive forces required to break down hard ores and oversized boulders.
Material Performance & Work-Hardening Depth
The secret to the longevity of a high-manganese jaw crusher liner lies in its unique response to stress. We utilize a range of manganese alloys—from the standard Mn13Cr2 for limestone to the ultra-tough Mn22Cr2 for the hardest granites.
Self-Strengthening Surface: Under the repetitive impact of the jaw, the surface of our liners rapidly work-hardens. While the initial hardness is around HB200-220, the operating surface can climb to HB500+, providing a "glass-hard" shield against abrasion.
Ductile Core: Unlike brittle high-chrome irons, the interior of our high-manganese jaw crusher liners remains tough and flexible. This prevents the liner from snapping or cracking even when uncrushable objects (like tramp iron) accidentally enter the chamber.
Advanced Casting for Structural Integrity
To ensure every high-manganese jaw crusher liner meets global ISO standards, our Shandong foundry employs Lost Foam Casting and V-Process technology. These methods ensure:
Dimensional Accuracy: A perfect fit against the jaw head and back plate, eliminating the "rubbing" that causes heat buildup and frame wear.
Internal Purity: By using vacuum-sealed molding, we eliminate gas porosity and sand inclusions, which are the leading causes of premature liner failure in inferior products.
Optimized Tooth Profile: Whether you need a standard "V" tooth or a specialized "wide-spaced" profile for sticky materials, our precision molds ensure consistent geometry for better rock-gripping.
Field Applications & Success Stories
Our high-manganese jaw crusher liners are currently deployed in massive infrastructure projects across Southeast Asia and Africa. In a recent case study from a basalt quarry in Vietnam, switching to our Mn18Cr2 liners resulted in a 25% increase in wear life compared to the original OEM parts, significantly reducing the frequency of hazardous liner changes and increasing the plant's total annual tonnage.
Operations & Maintenance FAQ
Q: Why do my jaw crusher liners warp or "mushroom" at the edges?
A: This usually happens when the manganese content is too low for the impact level. The material "flows" under pressure. Upgrading to a higher manganese grade (like Mn18 or Mn22) provides the structural stiffness needed to maintain the liner's shape.
Q: Can these liners handle wet or muddy feed materials?
A: Yes. We can customize the tooth design of the high-manganese jaw crusher liners to be "self-cleaning," which prevents fine material from packing into the grooves and causing unnecessary side-pressure on the crusher frame.
Q: Is there a specific "run-in" period for new manganese liners?
A: It is best to start with slightly softer rock for the first few hours to allow the work-hardening layer to form evenly across the teeth before introducing the hardest primary feed.

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high-manganese jaw crusher liners

In the high-pressure environment of primary crushing, the inner walls of your machine face constant bombardment. High-manganese jaw crusher liners (including both fixed and swing plates) are the essential wear-resistant components that define the service life of your equipment.

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Telephone:+86-13792621099

martin@shandong.com

Weifang Binhai New Area Sino-foreign Cooperation Industrial Park, about 260 meters west of the intersection of Hai 'an Road and Zhenhai Street

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Telephone：+86-13792621099

sales@sdjjiu.com

Weifang Binhai New Area Sino-foreign Cooperation Industrial Park, about 260 meters west of the intersection of Hai 'an Road and Zhenhai Street

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