HP200 Cone Crusher Liners | Mn18Cr2 Replacement Wear Parts

Premium Replacement Wear Parts for HP200 Cone Crushers

Optimize your aggregate production with our high-performance Cone Crusher Liner replacements. Engineered specifically for the HP200 series, our parts utilize advanced metallurgy to withstand the rigorous demands of crushing hard abrasive materials like granite and basalt. By strictly adhering to OEM dimensional tolerances, we ensure our crusher spares deliver consistent setting stability and throughput.

*Note: Part numbers are for reference only. Our parts are fully interchangeable with Metso Nordberg HP200 series crushers.

Technical Specifications & Metallurgy

The longevity of wear parts depends on the crystalline structure of the steel. We employ a controlled water-quenching heat treatment process to ensure a fully austenitic structure, preventing premature cracking.

• Material Standard: ASTM A128 Grade C (Austenitic Manganese Steel).
• Alloy Composition:
  • Mn14Cr2 (Standard): Cost-effective solution for soft rock applications (Limestone).
  • Mn18Cr2 (Premium): The industry standard. High impact toughness with excellent work-hardening capabilities.
  • Mn22Cr2 (Ultra-Heavy Duty): Enriched with Chrome for extreme abrasion resistance in high-silica environments.
• Hardness Profile:
  • Initial Hardness: 210-230 HB (Brinell).
  • Work-Hardened: >500 HB (Achieved during operation).
• Machining Tolerance: CNC machined to +/- 0.05mm on seating surfaces to prevent liner spinning.

Performance Comparison

Why choose our aftermarket crusher part suppliers over generic foundries? The difference lies in the grain refinement.

Field Diagnosis: When to Replace Your Liners?

Visual inspection of the wear pattern can reveal significant issues with your crusher’s operation:

• Over-worn Mantle: If the mantle thickness is less than 15mm at the bottom, replace it immediately to avoid damaging the main shaft.
• Inlet Restriction: If you see “lipping” or inward deformation at the top of the bowl liner, your feed size may be too large.
• Uneven Wear: If one side wears faster than the other, check your feed distribution. Off-center feeding reduces liner life by up to 20%.

Quality Assurance Process

We ensure every shipped part meets strict industrial standards:

• Dimensional Check: 3D Laser scanning vs. OEM blueprints.
• NDT Testing: Dye Penetrant (PT) and Ultrasonic Testing (UT) to detect internal voids.
• Traceability: Every liner is stamped with a unique serial number and heat number.

Engineer’s Expert Tip

Installation Advice: When installing the HP200 Bowl Liner (e.g., N55208150), always check the condition of the threads on the adjustment ring. Also, strictly follow the “Work Hardening” procedure during the break-in period. Start with a 50% choke feed for the first 2 hours. This allows the Manganese steel surface to harden (from ~200HB to ~500HB) before full load, preventing rapid initial wear or plastic deformation.

Frequently Asked Questions (FAQ)

Q1: How do I know which cavity (Fine, Medium, or Coarse) to select?

The cavity selection depends on your feed size and desired product output. Generally, “Coarse” is for larger feed sizes (secondary crushing), while “Fine” (like N55208150) is used for tertiary crushing to produce smaller aggregates. Using the wrong cavity can cause power spikes or ring bounce.

Q2: Do these parts come with the backing compound included?

No, the crushing backing compound (epoxy) is sold separately. However, we supply the liners with the necessary lifting lugs and torch rings to facilitate safe installation.

Q3: Are these liners compatible with the new HP200 “Pro” series?

Most HP200 internal components are standard, but the Pro series may have specific updates. Please provide your machine’s serial number or the specific part number found on your old casting to confirm 100% compatibility before ordering.