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2. Underground personnel carrier - Wikipedia

   en.wikipedia.org/wiki/Underground_personnel_carrier

   Low profile. In the coal mining industry low profile personnel carriers are the most commonly used. These carriers may only have a 3 to 3.5 feet (0.91 to 1.07 m) height dimension and carry up to 14 men, and are typically built from the ground up and can be designed with job specific attachments. Mantrip Coal miners riding a mantrip

3. Hard hat - Wikipedia

   en.wikipedia.org/wiki/Hard_hat

   Hard hat. A hard hat is a type of helmet predominantly used in workplace environments such as industrial or construction sites to protect the head from injury due to falling objects, impact with other objects, debris, rain, and electric shock. Suspension bands inside the helmet spread the helmet's weight and the force of any impact over the top ...

4. MSA Safety - Wikipedia

   en.wikipedia.org/wiki/MSA_Safety

   Construction worker wearing an MSA Skullgard hard hat at Douglas Dam, Tennessee (), 1942. Mine Safety Appliances, or MSA Safety Incorporated, is an American manufacturer and supplier of safety equipment designed for use in a variety of hazardous conditions in industries such as construction, the military, fire service, and chemical, oil, and gas production.

5. Underground hard-rock mining - Wikipedia

   en.wikipedia.org/wiki/Underground_hard-rock_mining

   Appearance. A 3D diagram of a modern underground mine with shaft access. Underground hard-rock mining refers to various underground mining techniques used to excavate "hard" minerals, usually those containing metals, [1] such as ore containing gold, silver, iron, copper, zinc, nickel, tin, and lead. It also involves the same techniques used to ...

6. Miner's cap - Wikipedia

   en.wikipedia.org/wiki/Miner's_cap

   The miner's cap ( German: Fahrhaube) is part of the traditional miner's costume. It consists of a white material (linen) and served in the Middle Ages to protect the miner when descending below ground ( unter Tage ). Later it was replaced by the miner's hat ( Fahrhut or Schachthut ), from which the leather cap or helmet were developed and ...

7. LHD (load, haul, dump machine) - Wikipedia

   en.wikipedia.org/wiki/LHD_(Load,_Haul,_Dump_machine)

   LH 514 from Sandvik. LHD (load, haul, dump) loaders are similar to conventional front end loaders but developed for the toughest of hard rock mining applications, keeping overall production economy, safety, and reliability in consideration. They are extremely rugged, highly maneuverable, and exceptionally productive.