Let us help you recover valuable metals. 888-437-1187

Magazine

Small Mining Operations

All About Hard Rock Drills

There are three basic power sources for rock drills—electricity, gasoline and compressed air. Before we go into big pneumatic drills, we’ll start with a quick rundown of each.

Online access required. Please .

Add a Comment

Additional articles that might interest you...

Wyoming's Billion Dollar Nugget—The Trilogy Ends


With eight loads processed, a pumpkin-size rock fell into the hopper, stopping the whole operation until I could lift it out.

Wealth Beyond Your Wildest Imagination


“Wealth beyond your wildest imagination.” Those were the words that were used to inform me of how much gold was in a paleo channel that exists beneath the present channel of the Similkameen River in the State of Washington; words that have echoed in my mind for the past sixteen years.

Proper Placer Sample Processing


...your sampling procedures should not be designed to catch gold your mining technique will never recover.

The Hughes Creek Placers, Montana


Gold discoveries in the Montana territories sparked a frantic stampede to these bonanza destinations in the early 1860s. Hughes Creek is located in Ravalli County, which is located in western Montana, and the gold here is...

Determining The Optimal Crushing Size for Gravity Recovery


It’s not easy to figure out what is best without testing, and so a certain level of confusion has developed about how small the ore ought to be crushed.

Getting Into Hot Water While Reclamation Dredging


Once I started dredging with heated water pumped into my wetsuit, I never went back to not having heat except late in the summer when the water is very warm.

The Fire Assay of Carbon


Carbon, activated charcoal, or “char,” as some old timers refer to it, can be an assayer’s nightmare.

Subscription Required:
The Bawl Mill   • Legislative and Regulatory Update   • Ask The Experts - What percentage of the gold price can I get from a buyer?   • Ask The Experts - Is a hookah battery setup legal in California?   • Ask The Experts - Are friends and relatives regulated like employees?   • Ask The Experts - What do you use for flux for melting gold?   • Ask The Experts - Why Isn't There A Dual Coil Detector?   • Ask The Experts - Who has the rights to a vein that goes under a neighboring claim?   • Ask The Experts - Is platinum usually magnetic?   • Ten Detecting Tips for the Savvy Desert Prospector   • Gold Prospecting for Better or Worse: When a Gold Prospector Goes to a Diamond Mine   • Why So Much Gold in Nevada?   • A Golden Past   • Fire Assay Finish by Silver Nitrate Fusion for PGMs   • Do Gold Nuggets Come Out At Night?   • Melman on Gold & Silver   • Mining Stock Quotes and Mineral & Metal Prices

Free:
Judge Rules Against Dredger in Idaho Civil Case   • PLP Update

Advertisements

Precious Metals Recovery plants and equipment
Fighting to keep public lands open to the public
Specializing in the processing of precious metal ores!
Watch prospecting shows on your computer right now
Free Online Sample Issue