The jaw plate is a critical wear part of a jaw crusher, responsible for crushing various materials (e.g., rocks, ores, concrete). Below is a detailed specification of jaw plates:
1. Material Composition
– High Manganese Steel (Mn13, Mn18, Mn22) – Most common due to high hardness and impact resistance.
– High Chromium Cast Iron (Cr20, Cr26, Cr30) – Offers superior wear resistance for abrasive materials.
– Titanium Carbide (TiC) Insert Plates – Enhanced durability for extreme conditions.
– Alloy Steel (Low Carbon Steel with Boron or Molybdenum) – Used in some applications for cost efficiency.
2. Dimensions & Design
– Fixed Jaw Plate vs. Movable Jaw Plate – Different shapes based on position in the crusher.
– Tooth Profile:
– Smooth (for fine crushing)
– Corrugated/Chevron (for coarse crushing)
– Custom patterns (based on material type)
– Standard Sizes:
– Width: 600–2500 mm
– Length: 800–3000 mm
– Thickness: 50–250 mm
3. Hardness & Wear Resistance
– Brinell Hardness (HB):
– Mn13/Mn18: ~200–300 HB
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High Chrome: ~600–800 HB
– Impact Toughness: ≥100 J/cm² (for Mn steel)
4. Applications
– Primary crushing (coarse materials like granite, basalt)
– Secondary crushing (softer materials like limestone, coal)
– Recycling (concrete, asphalt)
5. Lifespan & Replacement Factors
– Depends on material abrasiveness (~3–6 months in harsh conditions).
– Regular flipping/swapping extends lifespan.
6. Mounting System
– Bolted or wedged to the jaw crusher frame.
– Some designs allow reversible use for extended service life.
7. Standards & Certifications
– ASTM A128 / DIN X120Mn12 / GB/T 5680
– ISO 9001 certified manufacturing
Would you like details on a specific type of jaw plate or manufacturer recommendations?