Machine Of The Month for May

May 16, 2002
/ Print / Reprints /
/ Text Size+

The Contourbreton NC 250 from Breton was specifically designed for stoneworking - as opposed to a machine that was "recycled" from the glassmaking or woodworking industries.

Contourbreton NC 250 is delivered completely assembled by sea in an open top 20-foot containder and by land in a standard truck. This allows purchasers to keep the transportation costs within manageable limits. Since it is shipped completely assembled, the machine can be installed and put into operation at the customer's facility in a short timeframe. The machine does not require any specialized foundation and can simply be anchored to the floor, as it is equipped with tanks to collect and disperse the cooling water.

According to Breton, the machine was engineered to be compact, well built, ergonomic, and aesthetically beautiful. Designed to work stone with optimum speed, precision and efficiency, the support frame of the Contourbreton NC 250 is a strong monoblock of welded, normalized steel, which insures high rigidity and accuracy, even when faced with heavy grinding stress. It is equipped with sliding doors, which are opened manually and have a large inspection window. The doors provide safety and also help deaden sound. Thus, the operator is protected from risks of being stuck by flying pieces.

The vertical travel of the spindle is 260 mm, and it is mounted on a cast iron structure for maximum rigidity even when fully extended. The Contourbreton NC 250 also features digital motors and an aluminum worktable with grooves for mechanical fastening vacuum pads. This ensures that the workpieces are tightly locked in place even during heavy grinding operations.

"Rapid" displacement of up to 50 meters per minute, allows for accelerated work cycles, and the machine has automated tool store with 11 + 11 positions. This permits automatic tool stocking, even of the cutting units with vertical or convex circular blades.

The Contourbreton NC250 is equipped with a continuous numerical control unit (CNC) by Siemens Sinumerik, with digital control on PC. The control panel is on an overhanging adjustable console with keyboard, and it provides graphic visualization on a color monitor.

A portable keypad is connected by cable to the console, which duplicates the main commands (axis movement, control knob, emergency stop, etc.). This allows the operator to directly control the machine from close proximity for delicate operations.

With Bretoncam original software, programming the Contourbreton NC 250 is designed to be easy, fast and always menu-driven. It is totally compatibility with the Windows environment, and the software creates two-dimensional geometries on different spatial planes, compatible with numerical control work centers with 3 or 4 axes. It allows for the import and export of IGES, DXF, VDA-FS files or files obtained by means of three-dimensional tracing systems.

A broad range of accessories to the Contourbreton are available on request, including laser positioning; a three-dimensional optical system; automatic tool control; a continuous rotating fourth axis; and a device for spindle inclination, which allows for the execution of drainboards with inclined surfaces.

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 2014 Stone Products Gallery

Check out the November Stone World image gallery!

Stone World Magazine

Stone World December 2014

2014 December

Check out Stone World's last issue of the year, which includes a recap of TISE East and Marmomacc.

Table Of Contents Subscribe

Contemporary Stone & Tile Design Magazine

CSTD Fall 2014 cover

2014 Fall

In this issue of Contemporary Stone & Tile Design, we take a look at the latest developments in TPT, with a feature article and you can read more comments from Waldrep on this subject as well as other industry professionals.

Table Of Contents Subscribe


Are you aware of the new stone standard – ANSI/NSC 373 Sustainability Assessment for Natural Dimension Stone?
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

Stone Industry Education

Stone Industry Education

From marketing and much more!  We provide natural stone professionals with stone knowledge and education they can count on, as well as great networking opportunities. Click here to go to Stone Industry Education.


facebook logo Twitter  YouTubeGoogle+

Stone Guide 2014

2014 Stone World Stone Guide

The directory for Stone, Equipment and Supplies - the single information resource readers turn to.