April 1, 2009
/ Print / Reprints /
/ Text Size+

HICKORY, NC - Recently, Advanced Industrial Machinery (AIM) of Hickory, NC, redesigned one of its top products, the MasterJetSaw combination cutting saw/waterjet system, to reduce design/build costs and significantly improve stonecutting throughput and productivity. To achieve these goals, AIM incorporated a new drive and control system into the MasterJetSaw: the IndraMotion MTX CNC machine control platform, Profibus remote I/O and the innovative IndraDrive Mi integrated motor and drive system, all from the Bosch Rexroth Corp.’s Electric Drives and Controls technology group.

Combining a rigid, high-accuracy 20-horspower (HP) rotary cutting head, high-speed diamond-tipped blade and a 50-HP abrasive waterjet cutter into a single unit, the MasterJetSaw allows fabricators to cut accurately and repeatedly in stone up to 4 inches thick, reports the manufacturer. Most cuts are straight, using the 20-HP rotary saw. The waterjet is used for radiuses, sink cut-outs, holes for pipes and fixtures, and other circular or curved cuts.

Until recently, AIM built waterjet and saw machines using conventional servo drives and motors, but it was looking for new technology that would:

• Reduce the machine footprint

• Lower machine component costs

• Reduce the time to build machines and deliver to the market

• Improve stonecutting productivity and materials utilization

AIM worked with Livingston & Haven of Charlotte, NC, a leading supplier of manufacturing productivity technology solutions, and a major distributor of Bosch Rexroth products, to identify the best solution to satisfy their requirements for the MasterJetSaw. AIM and Livingston & Haven chose to upgrade the machine with the Rexroth IndraMotion MTX CNC platform and the IndraDrive Mi integrated servomotor and drive system, for a complete drive and control solution.

Rexroth’s innovative IndraDrive Mi combines a servomotor and drive into a single, ultracompact unit that is about 50% smaller than conventional servomotor and drive systems, according to the company. By mounting the drive electronics on the motor, instead of in a separate control cabinet, it is possible to dramatically reduce machine footprint and component costs.

Using IndraDrive Mi integrated motors and drives allowed AIM to replace a large freestanding enclosure that previously housed all the servo amplifiers, power supplies, contactors and other components with two smaller, 24- x 24-inch cabinets mounted on the machine. This reduced the overall machine footprint considerably and saved costs on the enclosure.

“Reducing the MasterJetSaw’s footprint, component cost and machine build time were all important goals for us,” said AIM president Bob Pharr. “The Rexroth IndraDrive Mi was key to meeting all three. By using the IndraDrive Mi we cut the machine electrical build time in half.”

The IndraDrive Mi also improved the MasterJetSaw’s operational efficiency, resulting in material savings.

In terms of stonecutting, closed-loop control of multi-axis interpolated motion has resulted in optimal rounded cuts, reports Pharr.

Additionally, the IndraMotion MTX CNC precisely controls the movement of the circular saw and waterjet to make sure each piece is cut properly with minimal waste and much greater accuracy. As a result, operators can space parts with much tighter tolerances, cutting more pieces from each slab.

“The parts are accurate to within four to five thousandths of an inch, far more accurate than what’s been done in the past,” said Pharr. “Because the original cut is more accurate, it speeds up the finishing process.”

One of the first companies to use the updated MasterJetSaw with the Rexroth IndraMotion MTX and IndraDrive Mi technology is Elite Installation and Designs, Inc. of Hendersonville, TN. According to Elite President Chris Brown, within the first week of using the MasterJetSaw, they were able to eliminate overtime entirely, and were cutting so fast they moved five days ahead of their production schedule.

Did you enjoy this article? Click here to subscribe to Stone World 

You must login or register in order to post a comment.



Image Galleries

November 2013 Stone Products Gallery

Take a look at some of the latest stone industry products.


Stone World Magazine

April 2014 stone world cover

2014 April

In this month's issue of Stone World, check out an extensive preview of Coverings 2014, which will be celebrating its 25th anniversary in April. Also learn more about various types of limestone that were used to build private residences.

Table Of Contents Subscribe

Contemporary Stone & Tile Design Magazine


2014 Spring

This issue of Contemporary Stone & Tile Design includes our annual focus on Kitchen and Bath design

Table Of Contents Subscribe

Training Program

How formal is your training program for new employees?
View Results Poll Archive

The Stone World Store

How to Polish & Restore Marble Flooring

This video will show you step-by-step how to resurface and polish marble flooring from grinding and removing lippage and scratches to achieving a highly reflective polish.

More Products

Italian Trade Commission Coverings exhibitor preview

Italian Trade Commission logo 2

The Italian Trade Commission is presenting a large group of the most innovative and internationally renowned Italian suppliers of dimensional natural stones. We hope your busy schedule will allow you to join us for a “genuine” espresso in booth N. 4045 and explore the exciting Italian natural stone resources offered by our exhibitors. Check out Italian stone producers exhibiting at Coverings 2014 here!


Stone Industry Education

stone industry educationStone Industry Education is sponsored by Stone World Magazine and Marble Institute of America. The SIE events will help you: strengthen your skills, build your business, and  increase profit in your shop.  Check out to register for upcoming fabricator and installer seminars.


facebook logo Twitter  YouTube