The base frame is a decisive element in relation to honing or polishing quality. The fundamental characteristics are flatness and stiffness. Breton base frames are constructed with a continuous steel plate bed supported by intermediate box section structures sized by means of FEM analysis. This system prevents the bed from bending and creates a support base on which the slab can be laid perfectly and safely. The belt return side covers are made of stainless steel to impart water and debris resistance properties.
Continuous polishing machine for granite slabs
Mobile bridge polishing machine with conveyor belt for granite slabs
Thanks to its robustness, the highly dynamic nature of beam movements with the possibility of variable ramps, the special configuration of the self-hardening lightweight alloy spindles and a series of operating heads that is unique in the sector, Breton Kappa G is the best investment choice for companies seeking high production output and superior quality levels.
Breton Kappa G
- Frontally mounted honing spindles with dual actuator1
Frontally mounted honing spindles with dual actuator
The structure of the Kappa G spindle is unique in the sector, both in terms of configuration and components. The “frontal beam” fixing system makes it possible to maintain the head rotation axis constantly perpendicular to the slab, meaning that the abrasive tools are perfectly positioned on the granite slab. The spindle dual actuator system controls machining pressure with extreme sensitivity, respecting also softer and more fragile stone materials and guaranteeing minimum response times for head lifts, to the benefit of perimeter honing quality.
- System with low load masses for perfect management of pressure values2
System with low load masses for perfect management of pressure values
The specific configuration of the spindles relieves the load on the abrasive tools so that also more precious and super exotic materials can be processed. The force required to allow the abrasive tools to process the stone surface can be selected by the operator by means of pressure values adjustable by 0.1. With this system the heads follow the working surface perfectly, even on imperfectly flat slabs, achieving extremely high and uniform gloss values.
- Axes drive with digitally controlled brushless motors and energy recovery3
Axes drive with digitally controlled brushless motors and energy recovery
The beam and belt are driven by digitally controlled brushless motors. This solution, tried and tested by Breton over the years and constantly updated to reflect the latest technological advances, allows perfect management of acceleration and deceleration ramps with very high dynamics. By means of the Energy Recovery function the system takes the braking energy generated during beam traverse deceleration phases and injects it into the power grid.
- Tango accessory for honing and for polishing4
Tango accessory for honing and for polishing
The machine is available with Tango technology, an exclusive patented system that adds an oscillatory movement centred around the spindle centre of mass. The resulting movement is programmable and manageable by the operator, who can decide on the use, oscillation amplitude, spindles path, and mix of paths. When properly managed the machine can work with all types of natural stone enhancing both honing and polishing quality while making it possible to increase production speed.
- Lasting value5
Thanks to their intrinsic quality, their ability to keep performing after many years in operation, and the constant availability of spare parts, Breton Kappa G machines are highly sought after on the used machinery market and they retain a very high resale values even after decades of service.
Guarantee of high production rates with top quality
The design, production, and testing process is standardised to ensure that each product, although customised, follows a predetermined flow that is refined through time. Starting from supplies, sourced exclusively from suppliers certified for their quality and reliability, each step in the production process is checked by a team of expert engineers who monitor every tiny detail, up to installation and commissioning on the customer's site. Any discrepancies are resolved at source.
Every detail of the machine or plant is evaluated in terms of performance, durability, and reliability in the harsh conditions typical of the stoneworking industry, because we understand that high performance is not exclusively due to the peak performance that can be achieved by a system, but also to the zero or near zero shutdowns due to maintenance or breakages. A rapid servicing procedure that, wherever possible, does not require machine stoppages, is studied and defined for each designed component.
Heads compatible with Breton Kappa G
- / 01High stiffness base frame with single bed
One of the most stressed elements and hence most prone to wear is the guide between the spindles beam and the cross bridges. Breton adopts a solution whereby the load is supported by a cage with case hardened and ground rollers, which is synchronised by means of an idle pinion meshed with a rack. With this system, the load is distributed constantly and equally. The entire system runs in an oil bath, protected by a newly designed system of deep labyrinth seals with compressed air pressurisation./ 02Movement systems with synchronised roller cages
The availability of high power at the spindles is a definite advantage for certain work processes. The power must however be transmitted entirely to the operating head and not merely output by the motor. Breton spindles are equipped with Poly-V multi-ribbed belts that prevent even the minimum slippage, thus transmitting all the necessary power./ 03Spindles transmission with high performance belt drive
Depending on how it is configured with spindles and heads, Kappa G can perform a range of very different functions: honing machine, polishing machine, levelling machine, levelling/honing machine. There are various head models available: the well-known SG-6, SG-8 and SG-10 brushing heads of the latest generation, the Mirage satellite heads (Breton patent) and many others./ 04Vast range of installable heads
Water is supplied to the heads by means of a large diameter PVC common pipe rigidly mounted to the rear of the spindles and connected to them by means of flexible rubber hoses. This allows rapid intervention for cleaning and maintenance requirements. An ingenious system diverts the water to the exterior of the spindle body in case of overflows or duct clogging in order to protect the internal components from contact with the excess water./ 05The water system protects the machine
Kappa G can be equipped with a vast range of slab readers in order to inform the machine control unit of all the necessary data in relation to the type of treatment required. Scanners are available for precise detection of the outer shape, touch sensors on multiple points to detect slab thickness, or a sophisticated system for laser mapping of the entire slab surface that produces a “bathymetric” chart that is then processed./ 06Incoming material reading systems
At the outfeed position the machine can be equipped with the Oculus system which – by means of special optical device that measures a series of parameters in detail – can supply a detailed image of the surface roughness of the slab in all areas, creating a critical mathematical model for objective evaluation of polishing results./ 07Oculus system for scientific polishing
Breton Kappa G is a new project developed on the basis of more than half a century of experience. Breton invented an industrial process for polishing stone materials and has done more work on this type of machine than anyone else in the industry. Apart from performance, the expert design team focused its attention on reliability of the product and the ease of performing routine maintenance tasks rapidly using easily sourced components; this approach made it possible to achieve the industry's lowest maintenance costs./ 08Reliability and ease of maintenance
A genuinely modern polishing machine requires top level electronics, high power, and exceptional reliability. All maintenance points are equipped with remote diagnostic systems so that the related operations can be performed immediately and with zero impact./ 09Remote diagnostics
Other versions of Breton Kappa G
12-head polishing machine for granite slabs.
13-head polishing machine for granite slabs.
19-head polishing machine for granite slabs.
21-head polishing machine for granite slabs.
Version comparative table
|Kappa G / 012||Kappa G / 013||Kappa G / 019||Kappa G / 021|
Number of dressing/polishing spindles
Diameter of the head with oscillating bricks
Number of abrasive bricks on each plate/head
Max. beam traverse speed
Max. workable width
Max. passage width
Min. workable thickness (using abrasive bricks with a total height of 55 mm)
Max. workable thickness (using abrasive bricks with a total height of 55 mm)
Overall dimensions (length)
Overall dimensions (width)
Overall dimensions (height)