We appreciate the opportunity to introduce our raiseboring company and capabilities. The following web site pages will show you some of the past work our company has performed in contract raiseboring. You will note from these pages that they concern the use of a Robbins 41R for 3', 4' and 5' diameter raises, a Robbins 61R for 6', 7' and 8' diameters and an Ingersol-Rand RBM7-SP, and a Robbins 83R raiseboring machines with larger capabilities up to 20 feet in diameter and 2000' deep.

For example, we have successfully completed projects which have included such items as 6' diameter holes to a total depth of 2200 feet, 9' diameters to 1800 feet, 12' diameters to 1240 feet, and 16.5' diameters to 800 feet, just to mention a few.

Our complete line of equipment, including high pressure air compressors, generators, rig-up trucks, etc... and our strong financial position which enables us to bond our work, if required, gives us the capabilities of performing complete turn-key surface and underground shafts, including steel and/or concrete lining without relying on assistance from our customers or other construction companies.

We would be very pleased to be added to your bidders list for any future projects that would encompass our raiseboring capabilities. We invite your inquiry. It is our company policy to provide cost estimates to consultants, contractors and owners as well. If we can be of service, please give us a call. Current references are included. Additional references supplied upon request.