Marble Slabs Polishing Line

1.The fuselage mechanism is more compact: it is smaller than the traditional automatic grinding type, reducing unnecessary space waste!
2.Higher production efficiency: grinding and throwing and speeding into the board, the daily output can reach 800-1000 square meters!
3.Grinding and polishing is more attractive: with the right abrasive, the gloss can easily reach 100 degrees!
4.Low production cost: the diamond cutter head can be quickly loaded into the grinding head without brazing, which not only saves the time of grinding head replacement, but also saves the cost of brazing!
5.Stable performance of equipment: The main originals are all famous brands, the moving auxiliary guide rail is high-precision linear guide rail, the grinding and polishing pressure is directly driven by the main shaft, and the service life is longer and smoother.
6.High degree of intelligence: automatic memory function makes it possible to continue the work of the original station after restarting after abnormal stop in the middle, automatic fault alarm and prompt the fault location and solution!
7.Simple operation: Using the touch screen interface, whether it is parameter setting or equipment abnormal work report, user operators can easily realize man-machine dialogue!

This is the Best Benchmark Line Polishing available in the Market. With over 800+ machines Installed worldwide.
Some of the major highlights are :
1. Fastest Bridge Speed in the World.
2. Highest production.
3. Robust Spindle Design with no service record.
4. Easy to operate Software.
5. Mobile access of Machine Production Data.
To process SLABS and TILES, world's Finest and Robust Designed Line Polishing Machine. It comes with Automatic Hydraulic Loader and Unloader, Edge trimming, Motorized Idler Trolleys Motorized Washing Brush, Air Blower, Fully automatic Splash Guard.

Automatic Slab Line Polishing Machine
Dafon Auto Granite Marble Stone Polish Slab Grinding Polishing Machine with PLC Control System and Branded Electronic Componets
These machines are suitable for polishing Granite slabs or strips. Use the PLC system and liquid crystal display screen menu offer intelligent control. Establish Auto-dodging function and shape memory function. allocation of the abrasive consumption equipment. which has high automation operation and low labor strength. Allocation of the flexibility of Resin polishing heads. Prominent improvement in the polishing efficiency and polishing quality and greatly reduced abrasive consumption. Using the most advanced high-quality construction, and rational structure. high stability and efficiency and energy-saving operation. The power movement of polishing heads using the spread-allied set, improved slab flatness, reduce movement consumption and enhanced the longer working life. We can do the machines according to the client's requirements, like the number of heads, processing width, and length.
2. Technique Description :
I.Suitable for the surface polishing granite/marble
II.Using PLC intelligent control system and through the LCD touch screen human-computer dialogue, to achieve intelligent control.
III.A grinding head automatic collision avoidance and shape memory function, and is configured to abrasive wear alarm device, the machine has high automation degree, low labor intensity.
IV.Allocation of special granite grinding head/marble elastic grinding, polishing and polishing quality, and greatly reduced abrasive consumption.
V.Selection of sophisticated, reasonable structure, improving processing technology. finishing strong rigidity. Stable performance.
VI.Grinding head, grinding head upper part and key bearings are used in the central automatic lubrication system.
VII.Grinding power transmission using joint belt teeth narrow V belt, greatly reducing the power loss and increasing the service lift.

This machine is used for polishing small slabs of marble.

The perfect partner to satisfy even the most specific production needs.
Flying Top perfectly meets the needs of modern workshops. It can be designed and customized on demand. To give you more than you expect.
1 Hot dip galvanisation
Ensures the benches will last through time
2 Compactness
The size of the machine is small for the number of heads it contains, making it perfect for workshops with little space
3 Customisable
It is possible to configure the machine with a variable number of abrasive heads and calibrators

Italian (Breton) polishing machine for slabs with 17 polishing heads. The machine is at the stage of full recondition with brand new electric panel and new program. It has new roller tables and new semi-automatic loaders and unloaders. All the electrical systems will be new (switches, cables, sensors) as well as all the air systems (tires, air regulators etc.)

fully automatic slab diminssioning lines

Wiping machines are machines with a standard working width, which vary according to the number of heads. It serves to wipe and stabilize the surface and cracks on the surfaces of marble or granite of a certain size and thickness.

LUXMASTER KFT 5000- POLISHING MARBLE SLABS MACHINE

We have managed to improve the amazing Levibreton KFT even further.

Luxmaster KFT 5000, an even more modern polishing machine for marble slabs, built with innovative materials for stunning performance levels.

More rigid components, a machine base with a quick anchoring system, a dynamic spindle with balanced and immediate response of the pneumatic system bring benefits in slab edge polishing in particular, and make the Luxmaster KFT 5000 the most technologically advanced polishing machine on the market.

Salient technical features include an effective working thickness range of 10 mm to 110 mm, beam travel speed of up to 70 m/min, and the new 560 mm plates with 10 abrasive tools.

LUXMASTER TANGO

TECHNOLOGICAL EXCELLENCE FOR ABSOLUTE PERFORMANCE

The new LUXMASTER TANGO project is the result of a perfect mix of tradition and innovation.

Reliability, sturdiness, performance excellence and innovative solutions, features that have always distinguished Breton products, have also been the guidelines for designing this new polishing machine for marble slabs.



The spindle, the beating heart of the machine, has been redesigned with the goal of increasing the maximum working thickness and utilizing the new revolutionary 10- tool abrasives, while maintaining a high dynamic machining. To achieve this, the over-dimensioning of critical components and the use of light-, new-generation alloys were of utmost importance.

Increased transmission pulleys with asynchronous belts ensure the right amount of power to maximize the performance of the 10 tools.

Axes transmissions with Brushless digital control engines, in addition to guarantee unique work speeds in its market segment, allow for optimal ramps control and can be modulated in all situations to better adapt to each and every slab material and shape.



THE SUPREMACY IN POLISHING with the new TANGO version.

The ingenious oscillating spindle movement, modular and configurable, increases the homogeneity of the "smooth" or "mirror polished" finish, meeting the demands of an increasingly demanding market.

The spindles are securely anchored to the beam, the oscillatory motion is performed with a simple mechanical system and well-sized cushions, lifelong lubricated and equipped with greasing points.



The spindles oscillate and work synchronously, without asymmetrically overloading the slabs to be polished, thus ensuring the absence of any breakage of the most fragile and precious materials.



INTEGRATION WITH THE LATEST GENERATIONS OF INDUSTRY 4.0 PLANTS

Ability to integrate, through software accessories (optional), to modern process management software, for a total control of costs and production.

A LARGE RANGE OF ACCESSORIES: high definition slab profile reader, barcode reader, RFDI tag reader, inkjet markers, label makers, polish automatic detectors, scanners, cameras, weighers are just some examples of what LUXMASTER can offer to equip your workshop with a truly modern line to compete in all current modern-world scenarios.

LEVIBRETON KFG 4600:THE TRENDSETTING IN MARBLE POLISHING

The Levibreton KFG 4600 polishing lines for marble are the soundest investment for companies requiring extreme productivity, top quality and operational simplicity, while maintaining budget-friendly operating and maintenance costs. Breton was the first company to develop machines for the continuous polishing of marble slabs, effecting a radical change in the sector. Today, thanks to its unrivalled years of experience,emerging concepts in automation, and digital/PC integration, increased and experience based qualitysimple maintenance procedures and low operating costs continue to be our high standard of value we achieve for our customers. This standard is expertly applied to our latest version Levibreton KFG 4600.

Levibreton KFG is a worldwide success with customer satisfaction unparalled in the contemporary market.

High Resale Value: thanks to their inherent quality, their ability to remain high-performance machines during all their service life and the readily available spare parts guaranteed by Breton, Levibreton KFG are much appealing to the second hand market and maintain a very high resale value even after several years (a fact not to be ignored when the purchase of a new polishing machine is considered).

This factor markedly improves the dynamic assett value of our client’s business.

Honing-polishing units

Made of anodized aluminium alloy,the spindles are specially designed for weight reduction and increased rigidity. The raising-lowering system is perfectly balanced

thanks to a pair of pistons with protected internal rods. The plates rise and lower in a flash, with a optimal contact with the slab surface, therefore slab edges are perfectly polished and the operating speed is maximized.Each head is equipped with a pressure regulator displaying the operating pressure on an analogue display, for simple monitoring and setting according to the optimal parameters for the material at hand.

Special Breton plates

For high efficiency, each spindle is equipped with a specifically engineered, Breton abrasive holding plate with a diameter of 550 mm and holding 9 abrasives,which ensures an extremely high removal capacity and work stability for a perfect and uniform polishing even up to the edges of the material. The special Breton plates are provided with an exclusive one-way shock-absorbing system ensuring the correct flexibility and a homogeneous and optimal working pressure. The results are an unequalled polishing quality as well as a lower consumption of abrasives.

Beam

The arc-welded steel beam has an ideal design with a box-type section in order to reduce weight and provide high stiffness. Interestingly, the beam is not drilled (and therefore weakened) to insert the honing units, which are fixed to the beam and contribute to increase its flexural strength. The spindle/beam assembly is thus extremely light and dynamic and enables fast acceleration/deceleration ramps.

Beam Drive

The beam is actuated by two rack and pinion systems driven by two gearmotors, which are fixed at each end of the beam and are mechanically synchronized. The gearmotors are driven by two brushlesstype motors controlled by special drives, which, besides enabling a sine movement of the beam, make it possible to keep the number of the beam strokes constant even when the slab width changes; this ensures a better polish quality and uniformity on the whole surface of the slab, edges included.

This system is extremely reliable and results proven, guaranteeing highly dynamic movements without stressing the mechanical components resulting in maximum uptime and maximum lifecycle. The beam working speed reaches 70 m/min. Furthermore, energy saving ensues from “energy recovery” drives that transfer to the electrical grid the energy generated by the braking when the beam motion slows down.

LEVIBRETON KFG 4600:

CLOSE TO PERFECTION

Levibreton KFG 4600 was designed on the basis of the extensive experience acquired on more than 1.300 “Levibreton” polishing machines sold throughout the world, using the latest design techniques.

Quality Function Deployment - QFD

The new Levibreton KFG 4600 originated from the Customers’ needs, from what the Customer really expects from the ideal machine.

Finite Element Method - FEM

All the critical components of the machine have been checked out using the Finite Element Method (FEM).

Failure Mode & Effect Analysis - FMEA

Particular care was given to the early detection of all the potential defects/critical points which may occur during the service life of the machine, identifying and implementing the appropriate corrective actions.

Support structure

The support structure is a distortion-proof,arc-welded steel monobloc provided with 12 sturdy supporting legs.The conveyor belt slides upon a thick steel top, which is milled all in one go to ensure perfect flatness, and is driven by a brushless type motor that guarantees a better control of the feed speed.

Beam sliding bridges

The beam ends are fixed to two shoulders sliding along sturdy, cast-iron bridges, which house hardened, ground and thick slideways with large diameter roller runners in an oil bath, and a micro pinion. The sliding components are protected by stainless steel labyrinth guards.

Slab profile and thickness detection

A photoelectric barrier reader detects the slab profile with 10x10 mm resolution while a sonar reader senses its thickness. This system allows to process even slabs with a polished surface (such as already polished or resin-treated slabs).The system controlling the automatic head liftinglowering,ensures the self-adjustment of the beam travel to the slab width and guarantees that the front,anti-splash and sound-deadening barriers are positioned automatically to match the slab thickness.

Water plant

Water is supplied to the heads by a common,large-diameter PVC piping that is stiffly fixed behind the spindles and connected to the spindle units by means of flexible, rubber pipes.An revolutionary system diverts water outside the spindle casing in the event of overflowing or clogging of the ducts, thus preventing excess water from coming into contact with the spindle internal components.

Automatic control of abrasives wear

This system performs continuous monitoring of the abrasive wear of each single head through video advice notes and warning signals before tools are completely worn out.

It also guarantees the minimal lifting of the heads at the forepart and rear end of the slab and their subsequent rapid descent, thus ensuring a better polishing of the edges and a higher operating speed.

Electric and electronic plant

The electric and electronic plant is wired with the “field-bus” technique that transmits digitally, through a single cable, all the PC signals to the different control units installed on the machine.Signal transmission is safe and identification of possible failures is greatly simplified.The stationary part of the machine is electrically connected to the mobile beam by a parallel sheathing system ensuring safer working conditions and a longer cable life.All the electric and electronic equipment, including the PC, is supplied by world top-brands, therefore the user can freely get technical assistance and spare parts directly from the manufacturer, virtually throughout the world.

Automatic centralized lubrication system

A centralized system, mainly consisting of a grease reservoir, a pump with double micrometer filtration system, sequential distributors and pipes for high-pressure, guarantees the automatic lubrication of either the spindle

units or the other moving parts of the machine. The system is warned about possible malfunctions by pressure sensors that easily pinpoint where the circuit is clogged.

Slab cleaning

A rubber wiper fixed at the back of the machine removes water from the slab surface.

A pneumatically controlled spindle, integral with the beam and holding a brush, cleans the slabs once they are polished. The spindle is raised and lowered automatically each time a slab passes through.

Accident-prevention,sound-deadening guards

A pressure regulator is installed on each single spindle in a high, ergonomic and safe position. Pressure is displayed on an analogue pressure gauge (upon request, manual selectors for lifting/lowering each single head can be supplied). The frontal, sliding panels for accident-prevention and sound-deadening have a sandwich-like structure and are made of ABS and polyurethane. Sound-deadening splash guards with a stainless steel sandwich-type structure are installed on the beam, in front of the heads, on the same level of the heads. Their positioning is motorized, vertical and automatic in order to match the slab thickness and they lift each time the abrasives need to be replaced.

Management and programming

The colour touch-screen and advanced, user-friendly software enable the main processing functions to be managed, including:

• option to store (and recall) different work programs for various types of material

• conveyor speed and synchronism of the whole line, including loaders and connection roller conveyors

• beam movement (speed, customized programming of the acceleration and deceleration

ramps)

• back-slipping correction on the anti-skid conveyor of badly-sawn or bent slabs, for both single slabs and packs of slabs

• continuous, automatic monitoring of the abrasive wear for each single head, with video advice notes and warning signals before the tool is completely worn out

• option of excluding all, some, or just one slab, or even a portion of a slab (head, end, corner).

For fast and perfect polishing of marble slabs up to a max width of 200 cm.
Basement group:
The basement is made up of one rubber conveyor belt with anti slip tooth surface slides manufactured in order to obtain the maximum stability, precision of work and longer life.
This group is formed by:
- Basement of welded steel.
- Milled steel plates welded on the basement where the abrasive stones are acting.
- Driving roller and tensioning belt roller, with a special device that permits to adjust the conveyor belt stretch.
- Splash and lateral guards in order to avoid coming out of water.
- HP 3 motor for speed variator of the conveyor belts from 0 ÷ 2 mts. per minute.
Bridge:
Made up of electrowelded steel with high mechanical resistance with n°10 spindles prearranged to hold grinding polishing plate prearranged to hold the abrasive stones. The bridge is sliding on rectified and protected steel guides with adjustable speed by means of hydraulic motor controlled by a hydraulic central unit of 5,5 HP.
Spindles holding grinding/Polishing plates:
Seasoned cast-iron made, duly ribbed, made up of:
- Flanged motor HP 10.
- Belt transmission pulley with tensioning device of the same.
- Chromium plated rod holding spindle shaft, protected by rubber bellows.
- Spindle shaft rectified in side of ball bearings and grooved for perfect coupling with pulley.
The vertical lift and working pressure of the spindles is obtained by a hydraulic central unit of 4 HP.
Each spindle is controlled by the following equipments:
- Manometer for pressure reading on the abrasive stone.
- Push-button control for up and down movements of the working plate.
- Hand-grip for pressure adjustment.
- Cylinder and piston for rapid lifting of the rod holding the spindle, coming down and pressure adjustment on the abrasive stone independent from the consumption of the same.
- Connecting tubes and other pipe fittings.
Electric plant:
Electric plant type "Telemecanique" controls and protects the machine motors. Made up of:
- Water proof metallic locker, containing fuses, thermal relay, remote control switches and remaining electrical components for the automatic and stop safety equipment for each single motor.
- Control board push button and low tension, with working lamps for each single spindle.
- Amperometers for spindle motor.
- Connecting cable collector for single motor, with machine terminal board.
- Terminal board for connection of the machine to the electrical board.
Slabspresence reader device:
The slabs presence reader device, our type "STEPMATIC" is made up of n° 3 sensors located on the front part of the machine, provide to check the slabs presence thanks to electronic device which controls the plate up and down movements according with the belt speed and the presence of the slab. This system allows to anticipate or postpone, directly from the control board the lifting lowering of the plate in order to follow the speed of the belt and to modify the lateral position of the sensors according to an eventual defect of the block.
Standard accessories:
- n°10 Plates Ø 450 mm. to hold the abrasive stones
- Foundation bolts for the basement.
- Set of service keys.
- Lubrication syringe.
- Detailed instruction book for the machine erection, maintenance and lubrication.
Technical data:
- n°10 Motors of 10 HP for spindles holding abrasive stones.
- n° 1 Motor of 3 HP for belt working speed adjustment.
- n° 1 Motor of 4 HP for hydraulic unit of raise and descend of spindles.
- n° 1 Motor of 5,5 HP for bridge holding spindle traverse movement.
Total power installed : HP 112,5 = 83 Kw.
Real consumption : 65% of the installed power that is about 54 Kw/hour.
Water consumption : About 125 litres per minute with 2 atm pressure.
Weights : Net 11,30 tons. With sea package 12,70 tons. Volume 100 cub. mts.

PLATE MARBLE POLISHING MACHINE
This efficiency proved machine has been specially designed for thickness gauging and polishing of strips with cut ends. And max. width dimensions 2100 mm. The new PLX 2000 series supported with high technology, can reach top production speeds, whilst reducing consumption, maintenance and depreciation. THE SPINDLE: The PLX 2000 G features powerful, high precision polishing spindles with pneumatic working pressure which easily and perfect polishing any kind of granite.The spindles are entirely processed on CNC using highest quality of the material. Every spindle is assembled in the center of the mobile beam.
The spindles are working at their centre of gravity on the rotation axis so the mechanical play is reduced and this eliminates maintenance works.
The spindle has two electrical motors special tothed belt transmission system that the motors drive by prevents loosening or slipping of the spindles even under stress. The pneumatic system makes use through counter air pressure of the considerable spindle mass to obtain stability to the polishing heads. Counter pressure pneumatic system allows to polish fragile and delicate materials, with low working pressure. The machine controls the lifting movement of the spindles automaticly according to feeding the material
THE BEAM: The spindle holding beam is made of electro - welded steel and moves on exteremely wear resistant cast iron and alloyed bronze slideways. Sliding components are working in an oilbath and protected by stainless steel labyrinth seals. Beam movement is done by two motor reducer system located at the end of the beam to ensure constant and regular beam motion. The beam moves on two side bridges made of electrowelded steel and it has very strong structure to eliminate vibration during the operation. The synchronization shaft located the rear side of the beam provides uniform movement at both beam ends. The bridge moves on bronze alloyed slideways working in oil bath The adjustments, quick format changes and performing very rapid arrangements are some minor themes of high technological feedbacks manufactured for productive flexibility in this machine.

THE TABLE: The uniblock steel chasis designed to provide high rigidity and stability. The surface of the table covered by hard stainless steel to ensure long life of table and conveyor belt. At the ends of the table 2 turned belt drive rollers are installed one of which is free moving, and other one is motorized. The belt drive rollers are made of special steel. The belt is driven by a planetary type gear –motor to provide safe and uniform movement during the process. The conveyor belt speed adjustment is obtained by electronic frequency inverter.
ELECTRICAL AND WATER CONNECTION: The electrical and water connection between machine stationary part and the mobile beam is made by flexible cable chains which assure safer working conditions and a longer life for components. The polishing heads cooling water feed is performed by steel pipes which operates in a fixed position in the center of the spindle. The water cooling pipes can be removed very easily for the periodical clearing for calcereous substances. THE HEADS: A polishing head with swinging arms to hold the tools (abrasive or diamond) is mounted on each spindle. The motion of each swinging arm is obtained by an extremely precise, kinematical and mechanical system that reduce any clearance therefore ensuring low noise and long tools life. The particular geometry, the oscillation angle and frequency of the arms help to obtain high tools efficiency. The lubrication of the mechanical parts is by means of permanent oil bath with automatic lubrication pump. The even operation of the abrasive-holder arm controlled by a gear kinematical motion and the axial elasticity of the head provide large removals and high slab polishing level.
MACHINE CONTROL: The machine is controlled by a PLC (programable logic control) system with a 12 inch Touch Screen color panel for managing to synchronize all the processing parameters by easy interface and operator controls.
PAINT TREATMENT: Surface protected with two coats of bicomponent epoxy paint applied after sand blasting operation.

Automatic Polishing Machine for Granite and Marble – PMG
An automatic polishing machine for granite and marble.
PLC control system and HMI simplify the operation.
The speed of conveyor belt and bridge movement is controlled by inverter.
The pressure of polishing head is adjustable for different stone materials.
The useful working width can be preset in the computer.
The Automatic identification System for detecting the shape of stone ensures that the lifting and descending of polishing heads are accurate, when matching slabs of different shapes.
1. Good finishing with high speed.
2. Less abrasive cost.
3. Easy operation. Full automatic processing.
4. Simple installation and maintenance.

AUTOMATIC BELT POLISHING MACHINE FOR MARBLE SLABS
Thanks to CEMAR’s over twenty years experience in surface treatment of marble and granite, GMM present the most advanced version of LMS 2100 belt polishing machine for marble slabs. Respecting the philosophy that has always characterized the excellent CEMAR product, the new series of polishing machines for marble slabs is made using robust, accurate and reliable mechanics. In conjunction, the machine has advanced electronic and technology solutions to ensure maximum quality of work, high production yields and reduction of waste. All this ensure low running and maintenance costs, with high durability.
FEATURES
BASE
In sturdy electro-welded steel structure with rectified sliding plane covered with replaceable wear plates made of 3 mm thick special steel to ensure flatness and easy maintenance over time.
SURFACE TREATMENTS
All components are treated in our company with sandblasting by hand, cold galvanizing and painting with two component epoxy primer. On request, base and shoulders can be hot dip galvanized.
BELT
Pulled by two drums of large diameter. Speed adjustable by inverter. Two unique systems for cleaning and lubricating the belt to ensure flow smoothly.
BEAM
For spindle housing in a sturdy and rigid structure of welded steel. Sliding on the shoulders equipped with roller bearing in oil bath, protected by telescopic guards in stainless steel. Sliding elements made of hardened steel interchangeable and mounted both on the shoulders and on the bridge. The spindles are housed at the center of the beam to ensure complete stability and to avoid any possible vibration.
TRANSLATION OF THE BRIDGE
With rack and pinion. Starting from the version with 12 spindles, the transmission takes place with 2 gearmotors coupled at the bridge ends. Travel speed controlled by inverter.
POLISHERS SPINDLES
In cast iron, with thick chrome-plated steel grounded shaft, sliding on bronze bushes, complete with pneumatic cylinder for raising the abrasives carrying plates. Each spindle is equipped with a gauge for the control of pressure and counterpressure, necessary to balance the head during the working. The cooling water passes inside the shaft for a better and uniform distribution on the materials being processed.
MOTORS
11 kW/15 HP motors, with individual or in sequence start-up. Motion transmission with high performance belts.
ELECTRONICS: “THINKING HEART” OF THE LMS 2100
- Reliable. After careful controls, components are selected among leading companies in specific sectors (mainly Siemens or Schneider-Telemcanique).
- To make minimum the probability of failure or interference, on board of the machine is adopted modern network system "can open" which drastically reduces the number of cables between one section and the other.
- Software. Developed entirely in GMM, guaranteed over time, especially improved and customized according to customer requirements.
- Inverters. The roller conveyors and specific rollers in the entry are handled by inverters, like all the other moving parts, to balance the fl ow of material and optimize the speed of each step.
- Optical detector 120 photocells, to scan in a sequence the shape of entering slabs, done in RS485 protocol (noise free), it transmits the shape of the slab to the control unit to better manage the ascent and descent of the heads, according to the various selectable working cycles.
- Ultrasonic sensor, positioned at the entrance, to detect the material thickness. Enables fully automatic management of the abrasives consumption of each single head.
- Automatic lubrication management, for planning the quantity of lubricant to be dispensed and the dispensing times.
- Touch Screen 12". Monitor with "easy to use" interface, interactive graphics for the complete management of the machine cycle with sequential startup spindle motors, belt and bridge motors. It drives the spindles up-down stroke according to the shape of slabs. Display of abrasive consumption status for each head.
- Data base. Large possibility to store various information about the work done or in progress.

The oscillation of the bridge of a traditional polishing machine that moves several spindles at the same time represents a limit especially for irregular slabs. For this reason, SIMEC presents to the polishing market the ORBITAL series featuring an oscillating and independent movement of each spindle. As a matter of fact, in the ORBITAL polishing machines there is no longer a single oscillating bridge but several bridges on which the spindles move individually making movements on different axes, similar to the ones performed by a manual processing and above all perfectly reaching the edge of the most irregular slabs without having to lift the other heads and in this way tools totally spend more time on the material.

The HPM 2200 RS machines are high performance polishing machines for marble slab, deriving from the granite version NP RS, from which they inherit most of the technological solutions.
Many customers has recently installed a new polishing line for marble and limestone slabs. In addition to the high performance new polishing machine HPM RS for marble and limestone slabs, the line is equipped with automatic loader mod. FINGER and with the automatic unloader robot mod. RAPID.

Polishing machine for marble slabs, available with heads from 4 to 16, equipped with a 9.2kW motor for each spindle and with working pressure control fitted on each polishing head. The control panel has a wide display to ensure complete control of the machine. LM 2100 RS is available also in the combined version for polishing slabs and calibrating and polishing strips and/or tiles. The calibrating is carried out by rotating plates having a diameter of up to 1100 mm, which can be equipped with diamond tools and installed in a fixed position at the entry of the polishing machine.

The perfect polishing of marble slabs on industrial scale requires a modern line equipped with state-of-the-art technologies.
Pedrini is able to provide the most complete solutions ensuring high production performances, high degree of the polishing quality with low costs of operation and maintenance.
Pedrini polishing lines for marble slabs are designed, manufactured and installed to meet every requirement of each customer
Each polishing line is set according to the available spaces and is customized thanks to the use of a wide range of options, machines and auxiliary equipment designed to meet any kind of production need and automation level.
The polishing machine Galaxy B220MA is the basic machine in the polishing lines proposed by Pedrini.
All components have undergone structural inspection trough the FEM (Finite Element Method). The structural components surfaces are protected with three coats applied after sandblasting, while the small parts have undergone a cataphoresis corrosionproofing treatment.
The strong base, built in normalized steel work with large thickness longitudianl and transversal elements, has been further stiffened through continuous sloped structures that protect conveyor belt lower route by conveying water and eventual waste directly to ground.
All surfaces matching the upper structures have been machined through one sole positioning on the tool machine to achieve perfect units coupling.
The multi-clothe anti-slip conveyor belt is controlled by two large diameter rolls: a traction roll powered through an epicyclical gear motor, an idle roll equipped with tension devices.
Mobile beam, in heavy steel work, is designed as a sole body with a very rigid closed section. The beam slides in oil bath on hardened and ground large diameter rolls into housings, that are protected through fixed labyrinth guards, inside the bridges. Beam transversal movement is controlled by two gear motors, synchronized through a connecting shaft, which drive two helical tooth pinions tempered and ground with two racks fixed on the bridges.
Two special devices constantly lubricate with oil the contact between pinion and racks.
Two adjustable rolls units control mobile beam longitudinal position and contrast spindle vertical push working on hardened guides fixed onto bridges outer sides.This technology allows for very smooth beam transversal movement because it clears racks and pinions from vertical stress and renders pulling, instead of pressing, conveyor belt longitudinal action.

The NPM polishing machines are available also in the combined version for calibrating and polishing of marble slabs. The first mobile bridge (PM version) installs calibrating spindles, capable of calibrating the useful working width, the second bridge installs honing spindles, the number depending on the version, for total honing/polishing of the width working efficiency of 2150 mm.

The LM 2100 RS is available in the combined version for polishing slabs and for calibrating and polishing strips and/or tiles. The calibrating is performed by special spindles that can be equipped with diamond tools with useful working width of 650 or 1000 mm according to the version. The calibrating spindles are installed at a fixed position at the entry of the polishing machine while the dressing spindles are installed on a mobile bridge and can operate on a useful width of 2100 mm.

The HPM polishing machines are available in the version for strips, with useful working width of 650 or 1000 mm and are supplied in combined solutions for calibrating and dressing-polishing. The spindle of the HPM polishing machines can house plates 580 mm. in diameter. The calibration takes place with rotating plates equipped with diamond tools., installed in a fixed or mobile position.