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LHD Machine in Underground Mining: Working, Capacity & Safety | Indian Minerology

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LHD Machine in Underground Mining: Working, Capacity & Safety

LHD Machine in Underground Mining: Working, Capacity & Safety | Indian Minerology

LHD (Load Haul Dumper) is one of the most important machines used in underground mining for loading and hauling broken ore from the face to ore passes or dumping points.

What is an LHD Machine?

An LHD machine is a low-profile underground vehicle designed to work in confined spaces. It performs three operations: loading, hauling, and dumping.

Main Parts of LHD Machine

  • Bucket
  • Articulated Frame
  • Engine
  • Hydraulic System
  • Transmission
  • Tyres
  • ROPS/FOPS Cabin

Working Principle of LHD

  1. Bucket penetrates broken ore
  2. Material is loaded
  3. LHD hauls material
  4. Dumping at ore pass
  5. Returns to face

LHD Capacity

  • 1 T
  • 3 T
  • 5 T
  • 10 T
  • 14 T

Production of LHD

LHD production depends on haul distance, bucket size, and cycle time.

Safety in LHD Operation

  • Proper ventilation
  • Operator training
  • Speed control
  • Clear signage
  • Regular maintenance

Advantages of LHD

  • High productivity
  • Low manpower
  • Flexible operation

Battery Powered LHD

Battery powered LHD machines are gaining popularity due to zero emissions and low operating cost.

Frequently Asked Questions (FAQs)

Q1. Where is LHD used?

LHD is used in underground coal and metal mines.

Q2. What is battery LHD?

Battery LHD is an electric underground loader using battery power.

Conclusion

LHD machine is the backbone of underground mining operations. Modern electric LHD machines are shaping the future of underground mining.

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