This document is a presentation on mine machinery for a course at the University of Liberia. It discusses bucket capacity for backhoe excavators, how front end loaders are used to scoop and transport loose materials, that a 90 ton dumper truck has a capacity of 90 tons for transporting materials to and between construction sites. It also describes excavators and their boom, dipper, bucket and rotating cab, and how electric shovels are electrically powered machines used for digging, loading, and mineral extraction. The document explains the difference between a long ton at 2,240 lbs and a short ton at 2,000 lbs, and why studying mine machinery allows understanding principles for analyzing, designing, manufacturing and maintaining mining equipment.

1. MINE MACHINERY PRESENTATION
DEPARTMENT OF MINING ENGINEERING
COLLEGE OF ENGINEERING
UNIVERSITY OF LIBERIA
FENDALL CAMPUS
NAME: BANKALE M. KABA
ID#: 62907
COURSE TITLE: MINE MACHINERY (MINE-417)
SEMESTER-ONE 2021/2022
PRESENTED TO: SHRI. ADOLPHUS M.G.D. GLEEKIA
SENIOR LECTURER/SENIOR MINING ENGINEER UL
DATE: 09/29/2022

2. BUCKET CAPACITY
Bucket capacity is a measure of the
maximum volume of the material that can
be accommodated inside the bucket of the
backhoe excavator.

3. FRONT END LOADER
A front end loader is a type of tractor,
usually wheeled, sometimes on
tracks, that has a front-mounted wide
bucket connected to the end of two
booms (arms) to scoop up loose
material from the ground, such as
dirt, sand or gravel, and move it from
one place to another without pushing
the material across the ground.

4. 90 TON DUMPER
A 90 ton dumper truck
is primarily used to
transport materials to
and from a
construction site. It
has a capacity of 90
tons.

5. EXCAVATOR
Excavators are heavy
construction equipment
consisting of a boom,
dipper, bucket and cab on a
rotating platform known as
the "house". The house sits
atop an undercarriage with
tracks or wheels.

6. ELECTRIC SHOVEL
A power shovel is a
bucket-equipped
machine, usually
electrically powered,
used for digging and
loading earth or
fragmented rock and for
mineral extraction.

7. DIFFERENCE BETWEEN LONG TON AND SHORT TON
LONG TON:
❖ IS A BRITISH TON
❖ IT HAS A CAPACITY OF
2240Ib
SHORT TON:
❖ US TON
❖ CAPACITY OF 2000Ib

8. Why do we study mine machinery?
To allow us understand the principles of mechanical
engineering and electrical engineering for analysis,
design, manufacturing and maintenance of mining
equipment

9. ● https://en.wikipedia.org/wiki/Power_shovel
● https://www.scribd.com
● https://www.paladinattachments.com/how-estimate-bucket-capacity
REFERENCES