Editorial Technical Reference

Crusher/Pulverizer

This page explains how Crusher/Pulverizer is classified within Machinery and Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

Mechanical component that reduces road materials into smaller particles for recycling

Product Specifications

Technical details and manufacturing context for Crusher/Pulverizer

Definition
The Crusher/Pulverizer is a mechanical component used in road recycling machinery to process reclaimed asphalt pavement (RAP) and other road materials. It breaks down large chunks into uniform, reusable aggregate sizes through mechanical force and impact. The unit typically features a rotor with hammers, jaws, or impact plates that apply compressive and shearing forces. It is designed for integration into mobile or stationary recycling systems, handling feed sizes from 100 to 300 mm and producing discharge sizes adjustable between 10 and 50 mm via gap or screen settings. Rotor diameter ranges from 800 to 1200 mm, and rotor speed from 600 to 1500 rpm, with higher speeds increasing the reduction ratio. Capacity varies from 5 to 50 t/h depending on material hardness, and motor power ranges from 15 to 90 kW. Operating voltage is three-phase AC at 380–690 V per IEC 60038, and operating temperature is -20 to 40 °C. Ingress protection is rated IP54–IP65 per IEC 60529 for dusty environments. Blade material is high-chromium alloy steel, manganese steel, or hardened tool steel, with a specific grade Cr12MoV per GB/T 1299 for high wear resistance. Machine weight ranges from 1500 to 5000 kg, affecting installation and transport. Noise level is 85–95 dB(A) per ISO 3744, requiring hearing protection above 85 dB. These values are reference ranges; verify model-specific specifications and standards with the legal manufacturer or supplier before procurement or use.
Working Principle
The crusher/pulverizer operates by rotating a rotor equipped with hammers, jaws, or impact plates at high speed. Road materials are fed into the crushing chamber, where they are struck by the rotating elements, applying compressive and shearing forces. The impact breaks the material into smaller fragments, which are further reduced as they collide with impact plates or are forced through a screen or gap at the discharge. The rotor speed and gap size determine the final particle size distribution. Mechanical fragmentation and impact crushing reduce the material to specified sizes, enabling recycling of RAP and other road materials.
Common Materials
High-chromium alloy steel, Manganese steel, Hardened tool steel
Technical Parameters
ParameterTypical rangeNotes & selection driver
Rotor Diameter800–1200 mmDetermines feed size and throughput
Rotor Speed600–1500 rpmHigher speed increases reduction ratio
Feed Size100–300 mmMax input dimension
Discharge Size10–50 mmAdjustable via gap or screen
Capacity5–50 t/hDepends on material hardness
Motor Power15–90 kWSelect based on capacity and hardness
Operating Voltage380–690 VThree-phase ACIEC 60038
Operating Temperature-20–40 °COutside range may affect lubrication
Ingress ProtectionIP54–IP65Higher IP for dusty environmentsIEC 60529
Blade MaterialCr12MoVHigh wear resistanceGB/T 1299
Machine Weight1500–5000 kgAffects installation and transport
Noise Level85–95 dB(A)Use hearing protection above 85 dBISO 3744

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM
  • Crushing Chamber
    Enclosed space where material crushing occurs
    Material: Wear-resistant steel plate
  • Rotor Assembly
    Rotating component with hammers or impact elements
    Material: Forged alloy steel
  • Crushing Hammers/Teeth Part
    Direct contact elements that fracture materials
    Material: High-chromium cast iron
  • Adjustment Mechanism
    Controls output particle size through gap adjustment
    Material: Carbon steel
  • Wear Liners Part
    Protect chamber walls from abrasion
    Material: Manganese steel
  • Screen Optional
    Holds material in the chamber until it is small enough to pass.

Application & selection

Application Fit & Sizing Matrix

Operational Limits
pressure: Atmospheric to 2 bar
flow rate: Up to 500 tons/hour
temperature: -20°C to 80°C
slurry concentration: Up to 60% solids by weight
Media Compatibility
✓ Asphalt/concrete rubble ✓ Demolition waste aggregates ✓ Recycled construction materials
Unsuitable: High moisture content (>15%) or sticky materials
Sizing Data Required
  • Feed material hardness (Mohs scale)
  • Desired output particle size distribution
  • Required throughput capacity (tons/hour)

Risk, maintenance & compliance

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Roller bearing fatigue failure
Cause: Cyclic loading from crushing hard materials, inadequate lubrication leading to metal-to-metal contact, and contamination ingress from dust/debris accelerating wear.
Hammers/impeller blade wear and fracture
Cause: High-impact collisions with oversized or tramp metal materials, abrasive wear from processed minerals, and material fatigue from repeated stress cycles without proper inspection.
Maintenance Indicators
  • Unusual grinding or metallic screeching noises during operation indicating bearing failure or component interference
  • Excessive vibration beyond baseline levels, visible shaking of the unit, or abnormal temperature rise in bearing housings
Engineering Tips
  • Implement predictive maintenance with vibration analysis and thermography to detect early bearing and imbalance issues before catastrophic failure
  • Establish strict material feed control with metal detectors and size screening to prevent tramp metal and oversize material from entering the crushing chamber

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
ISO 21873-1:2015 (Mobile crushers - Safety requirements) ANSI/ASME B29.24-2015 (Roller chain, attachments, and sprockets)

Quoted from the published standard.

Manufacturing Precision
  • Rotor shaft runout: ≤0.05mm
  • Hammer tip clearance uniformity: ±1.0mm
Quality Inspection
  • Ultrasonic Testing (UT) for critical weld integrity
  • Hardness Testing (Rockwell C) for wear components
Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
Verify equipment lists, process limits, capacity, and representative production evidence.
Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
Supplier transparency
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Manufacturers of Crusher/Pulverizer

1 company lists this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

HeNan MingChuan Machinery Equipment CO.,LTD.
Luoyang, Henan, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Crusher/Pulverizer”
View source page ↗ mcmachinery.de · recorded 2026-09-05

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Frequently Asked Questions

What is the typical feed size for this crusher/pulverizer?

The feed size range is 100–300 mm, meaning the maximum input dimension of the material should be within this range. Larger materials may need pre-crushing or screening.

How is the discharge size adjusted?

Discharge size is adjustable via gap settings or screen changes, typically ranging from 10 to 50 mm. The specific adjustment mechanism depends on the model; consult the manufacturer's manual.

What materials are used for the crushing elements?

The crushing elements are made from high-chromium alloy steel, manganese steel, or hardened tool steel. A specific grade, Cr12MoV per GB/T 1299, is listed for high wear resistance.

What are the operating voltage and protection requirements?

The operating voltage is three-phase AC at 380–690 V per IEC 60038. Ingress protection is rated IP54–IP65 per IEC 60529, with higher ratings recommended for dusty environments.

Related equipment

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Industrial Ecosystem & Supply Chain Structure

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Crusher/Pulverizer.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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