• w-facebook


Welcome to an industry first 3D animated library for the underground coal industry.

The following animated posts are designed to explain products, concepts and principles that are commonly associated with the mining industry.

Chock Trailer

A Chock Trailer is used during a long wall recovery or installation to transport chocks to and from the long wall face.  Due to the immense weight (30-40T) and physical size of a chock, the trailer can only carry one chock at a time. The trailer is towed by a suitable load haul dump (LHD) vehicle. A chock trailer has a capacity of around 50T and a chock is loaded onto a trailer with the help of a high strength winch, and is unloaded with the aid of large rams.




A DAC is a voice communication system which is typically used on conveyor belts within a long wall mine. It enables voice communication to occur safely to those working locally underground or to communicate with the surface.



Continuous Miner

A continuous miner is used to cut coal from the face and load it onto a shuttle car or conveyor in a continuous operation. It cuts the coal using its large rotating drum with the teeth on the drum scraping or ripping the coal from the seam. The primary use of a continuous miner is to create roadways throughout the mine and to provide the face for the longwall miner.



These pressure rated hoses carry both air and water from one location to another in an underground mine. The standard clips used on the end of the hose allow for quick attachment to air and water supplies.



Containers are used  for transportation of goods to and from a mine site, and also provide an excellent resource for temporary onsite storage.  Typically either 20 or 40 feet long, and made of ribbed sheet steel they are strong and readily transportable on trucks.  With lockable double doors that span the width on the container, they provide easy access to store equipment and products.


Crib Room Table

A crib room table is used underground primarily for meal breaks. With a fixed table and chairs it allows a small gang of miners the space to sit down in relative comfort. It is easily transported using pallet forks and oftenly situated in a cut through close to where miners are currently working.



A portal is the entrance and exit to an underground coal mine for people, machinery and services. It can also be a location for intake air to ventilate the mine. Most portals have a communication device such as a DAC or phone at the entrance to control the movements of traffic and people. Some portals also include a light block (similar to traffic lights)  which indicate if it is safe to enter the mine.


Grout Bowl and Pump

The grout bowl is used to mix water and grout powder to form a viscous grout mixture. The grout is then pumped using the pneumatic piston pump via a hose to the site of use.  A common use for the mixed grout underground is in roof bolting. The grout is pumped into the borehole of a roof bolt to to fix it in place.

Ballast Trailer

A heavy duty ballast trailer is used to transport and distribute ballast (small stones) around an underground coal mine. This ballast trailer incorporates a manual latch for the tail gate and an internal hydraulic push panel that automatically pushes the ballast out. It can be loaded above or below ground and typically carries 10-13T of ballast. The trailer is towed by any suitable Load Haul Dump (LHD) vehicle such as an Eimco.



Please reload