Mini laboratory jaw crusher usage range explanation

Mini laboratory jaw crusher usage range explanation

Mini laboratory jaw crusher, also known as lab small jaw crusher, is a miniature crushing equipment specially designed for laboratory sample preparation. Different from industrial crushing machines, it focuses on small feeding volume, uniform sample granularity, easy cleaning and low pollution, widely used in scientific research laboratories, mining testing centers, universities, geological exploration institutions and factory quality inspection departments.

1. Applicable Material Types

Suitable raw materials

  • Hard and medium-hard brittle materials: granite, basalt, quartz stone, ore, iron ore, limestone, dolomite, fluorite, barite, coal, coke, mineral slag, rock core samples
  • Solid non-metallic minerals: ceramic raw materials, glass fragments, refractory materials
  • Metallurgical raw materials: alloy blocks, mineral concentrates

Materials NOT recommended

  • Soft, viscous materials (clay, wet mud, asphalt): easy adhesion inside the crushing cavity, block discharge and cause cross contamination
  • Fibrous, tough materials (wood, rubber): cannot be effectively squeezed and crushed
  • Extra high hardness materials exceeding equipment compressive strength limit, easy to wear jaw plates severely

2. Application Scenarios

(1) Geological & Mineral Exploration

Crush rock core, drilling rock samples, ore specimens for geological analysis, mineral composition detection, grade testing. It realizes primary crushing of bulk rock samples into medium particles for subsequent grinding and testing.

(2) University & Research Institute Labs

Material science, geology, mining engineering, metallurgy, building materials related laboratory teaching and experimental research; prepare standard particle samples for physical and chemical analysis.

(3) Mineral Processing Pilot Test

Small-scale beneficiation laboratory: pre-crush raw ore before flotation, magnetic separation, leaching experiments to meet particle size requirements of follow-up test equipment.

(4) Building Material & Cement Laboratory

Crush stone raw material, clinker, aggregate samples for raw material performance testing, strength analysis and formula research.

(5) Industrial Factory QC Laboratory

Mine enterprises, metallurgical plants, chemical raw material factories, refractory factories: daily raw material sampling inspection, finished product particle detection.

(6) Environmental Testing

Crush solid waste samples, mineral waste residue for environmental composition analysis and heavy metal detection.

3. Working Parameter Application Scope

  1. Feeding size: Normally 20–80mm (depends on different mini models); large lump samples need pre-breaking before feeding.
  2. Discharge size adjustment range: Generally 1–10 mm. After crushing, materials can directly enter laboratory ball mill, pulverizer for fine grinding.
  3. Feeding capacity: Low throughput, usually 5–50 kg/h. It is only for sample preparation, not for continuous production.

4. Core Advantages Adapted to Laboratory Scenarios

  1. Compact structure, small footprint, easy to place on lab workbench
  2. Simple structure, convenient to disassemble and clean the crushing cavity to avoid cross-contamination between different test samples
  3. Low noise, equipped with dust cover option to reduce test dust pollution
  4. Adjustable discharge gap to control finished particle size flexibly
  5. Stable crushing effect, good uniformity of crushed particles, reduce experimental error

5. Usage Limitations

  1. Not for mass continuous production; strictly a sample preparation instrument, cannot replace industrial jaw crusher
  2. Wet materials with high moisture easily cause blockage; dry materials are preferred
  3. Must avoid metal impurities entering the crushing chamber to prevent jaw plate damage
  4. Not suitable for explosive, flammable materials unless equipped with special explosion-proof configuration