Equipment Series
Metso Impact Crusher
METSO · Part Details
Impact Crusher Rotor Wear Part System
Impact Crusher Rotor Wear System
Identify parts for Metso impact crushers, check models and drawing, confirm materials and processes, and submit an inquiry.
Equipment and Applicable Models
Identify the installed machine model and key dimensions, then check the drawing revision and physical interfaces.
Models and Key Dimensions
Metso Nordberg NP Series Range
Materials and Processes
Select the material grade and heat treatment for the operating conditions, processed material and equipment specifications. The options below are commonly used; confirm the final grade against the drawing and technical agreement.
Martensitic Wear-Resistant Steel (450-550 HBW)
Select materials to suit OEM specifications and operating conditions; confirm the final grade and heat treatment against the drawing.
Hardox 400-500
Select materials to suit OEM specifications and operating conditions; confirm the final grade and heat treatment against the drawing.
Cr26 high-chromium cast iron
Select materials to suit OEM specifications and operating conditions; confirm the final grade and heat treatment against the drawing.
Wear Characteristics and Replacement
Common wear modes and maintenance advice. The actual replacement interval depends on duty, material and operating data.
Common wear modes
- Interrelated wear across the rotor wear parts
- Wear causes rotor dynamic imbalance
- Wear at blow bar and liner mating faces
Replacement criteria
Apply the replacement criteria for each wear part individually. Inspect all rotor wear parts whenever blow bars are changed, and check dynamic balance at the specified intervals.
Material and Process Control
Materials, heat treatment, composite processes and inspection follow the specific drawing, duty and technical review.
Material Grade / Substrate
Martensitic wear-resistant steel (450-550 HBW) / Hardox 400-500 / Cr26 high-chromium cast iron
Heat Treatment Condition
Follow the applicable standard for the material grade; confirm heat treatment and hardness requirements against the drawing
Composite / Hardfacing Requirements
Follow OEM design requirements; confirm any hardfacing or composite construction against the drawing
Dimensions and Inspection
Inspect key dimensions against the drawing for the OEM model details. Check mounting and sealing surfaces individually and perform UT/MT non-destructive testing on castings.
Parts with the same name may not be interchangeable across models, drawing revisions, interfaces and materials. Confirm the full model, serial number and drawings before manufacture.