Gyratory Crusher Concave High Manganese Steel High Impact

Gyratory Crusher Upper Concave Segments | Mn18Cr2 High Manganese Steel Bowl Liner for Primary Gyratory Crushing

Product Overview

Our Gyratory Crusher Upper Concave Segments are the critical wear parts installed at the feed zone of primary gyratory crushers. This is the area that takes the first and heaviest impact from large run-of-mine ore, so toughness and impact resistance are what matter most.

Each concave is produced in a segmented ring design, with built-in lifting lugs on every casting piece. This makes hoisting, workshop assembly and on-site replacement faster and safer. Before shipment, every set goes through a full-circle pre-assembly inspection in our factory to check dimensional tolerance, joint gap and mounting hole accuracy — so it fits right the first time on site.

Key Specifications

Why Choose Our Upper Concave Segments

1. Built for the toughest feed zone
The upper concave takes direct impact from large run-of-mine ore. Mn18Cr2 work-hardens continuously under heavy impact, forming a hard working surface while keeping strong substrate toughness. The result: resistance to impact cracking and abrasive wear in heavy mining conditions.

2. Segmented design solves real problems
Large-diameter one-piece liners are hard to transport and replace. Our segmented ring structure breaks that limitation, fits 40HC container shipment, and makes field maintenance much easier.

3. Built-in lifting lugs on every piece
No makeshift lifting. Each casting comes with integrated lifting lugs for safe loading, unloading and on-site handling.

4. Full pre-assembly before delivery
We assemble the full circle in our factory to verify dimensional tolerance, joint gap and mounting hole accuracy. Fewer surprises during installation.

5. Custom manufacturing
We produce strictly according to your drawings or original samples, so the fit matches your crusher.

6. Stable performance, longer service life
Optimized casting process means fewer internal casting defects and more stable performance in large mine primary crushing circuits.

Quality Control

• Visual inspection and dimensional check after casting and machining

• Magnetic Particle Testing (MT) / Ultrasonic Testing (UT) available on request

• Full pre-assembly test before packing

• Material test certificate supplied with shipment

Matching Wear Parts

This upper concave works together with the gyratory mantle, middle concave segments and lower concave segments to form the complete crushing chamber liner set. Order them together for a matched fit and consistent wear life.

FAQ

Q: What material is used?
A: High manganese steel Mn18Cr2, water toughened after casting.

Q: Can you produce according to our drawings?
A: Yes. We manufacture strictly per customer drawings or original samples.

Q: How do you ensure the fit?
A: We carry out full-circle pre-assembly inspection before packing to verify dimensional tolerance, joint gap and mounting hole accuracy.

Q: Do you provide inspection reports?
A: Yes. Material test certificate is available, and MT/UT non-destructive testing can be arranged as per your requirement.

    Send us your drawings, sample photos or crusher model. We'll confirm material, dimensions and quantity, then quote you a fitted set with full pre-assembly inspection.