Broad Bench Highwall System

For benches over 90ft

Every ton of coal you get from your reserves is money in your pocket. Thanks to ADDCAR highwall mining systems, you can get thousands of additional tons from reserves that would have been abandoned just a few years ago. ADDCAR’s highwall technology is specially designed to maximise the recovery of your reserves which are accessible from the economic limit of your surface operation.

The central module of the ADDCAR Broad Bench system is the launch vehicle. This is the main Broad Bench Highwall Systemstructure of the highwall system, housing the electrical and hydraulic systems, hosting the operator’s compartment and other control functions, launching the miner into the seam and supporting the coal handling systems. First, the launch vehicle is lined up perpendicular to the coal seam at the desired location. A crawler-mounted continuous miner presses into the highwall, cutting the coal and feeding it onto the unique ADDCAR conveyor cars, which are placed at the back of the production line as the miner advances. This method of extending the production string means uninterrupted coal flow. The conveyor cars feed the coal car-to-car without use of an auger, which can increase fines. When it reaches the last conveyor car, the coal dumps off onto a final conveyor, which sends it to a stacking conveyor in back of the vehicle. The miner can drive an entry up to 1,600′ into the wall. Support equipment includes a stacker conveyor and wheel loader with forklift attachment. The deck crew remains under a FOPS canopy; and operators work in climate-controlled compartments.

broad-bench-system-thumb

Features

  • Recovers coal from 2.5′-28′ seams
  • Penetrates up to 1,600′
  • Produces up to 200,000 tons/month consistently
  • Cascading conveyor cars result in higher through put and fewer fines
  • State-of-the-Art horizontal & vertical steering

Specifications

Length (ft)

Overall (Assembled)
80.0
Canopy
62.0
Launch Base
74.4

Width (ft)

Moving – in Pit
19.8
Trucking
14.0
Across Skids
42.4

Height (ft)

Height
24.8

Compartments

Operators Compartment
12 x 12

Weight (tons)

Assembled Launch
180
with Miner on deck
220 – 230

Ground Pressure (psi)

Nominal
25.0
Maximum
36.5

Canopy Load (tons)

Load
185

Conveyor Belt

Width (in)
66
Speed (fpm)
500

Installed Horse Power (HP)

Main Belt Drive
100
Incline Belt Drive
50
Stacker Belt Drive
100
Main Hydraulic
400
Main Water
40
Total
690

Sump Force (tons)

Mining
236
Retract
150
Maximum Retract
350

Sump Pressure (psi)

Working
3000
Maximum
4500

Sump Speeds (fpm)

Mining
33.0
Maximum
72.5
Maximum Retract
86.5

Penetration Rate (ft/hr)

Rate
100 – 125

Input Voltage (v)

Voltage
4160 or 7200