Core wear‑resistant spare part for jaw crushers, also known as star‑inlaid jaw plate. High‑manganese steel base with hard alloy blocks embedded on the working surface. It is a bimetallic composite wear‑proof component.
Material & Structure
- Base Body: High‑manganese steel Mn13Cr2 / Mn18Cr2 / Mn22Cr2. Features excellent toughness. It undergoes work‑hardening under heavy impact force, delivering good shock resistance and anti‑fracture performance.
- Embedded Inserts: Titanium carbide (TiC) or tungsten carbide hard alloy blocks. They are cast‑in place on the peak working surface where the jaw plate suffers the heaviest abrasion. Hardness reaches HRC 58‑65 for superior anti‑abrasion performance against rock materials.
- Working Principle: The steel base absorbs impact loads while alloy inserts take abrasive wear. Combines toughness and high hardness. Alloy blocks are firmly locked inside the manganese steel matrix to prevent falling off.
Key Advantages
- ✅ Extended Service Life: Service life is 2‑3 times longer than conventional full‑manganese‑steel jaw plates. Performance gain is significant for hard rock such as granite, basalt and iron ore.
- ✅ Impact‑resistant, No Brittle Breakage: Unlike high‑chromium castings which tend to crack. The manganese steel substrate absorbs heavy shock, suitable for crushing large‑size raw stones with strong impact.
- ✅ Uniform Wear Profile: Raised alloy inserts contact stones first and protect the base metal. Avoids premature grooving and localized heavy wear, maintains stable crushing efficiency for longer periods.
- ✅ Less Downtime: Longer replacement cycles cut maintenance shutdown hours. Ideal for sand‑stone quarries, mobile crushing plants and highly‑abrasive ore processing.
Post time: Aug-31-2026