Sandstone Giant Disc Bridge Saw Machine

Block cutter-BL1200
It is an ideal machine for cutting blocks, paving stone and etc. Stone is up to Blade is up to 1200mm.
The machine is formed from cast iron giving unrivaled long life, precision and corrosion resistance.
Table rotates automatically. It is driven by hydraulic, can be locked at 0 and 90 degree.
1.Automatic cutting program.
2.Step cutting program for granite.
3.PLC control system.
4.The X axis movement is controlled by an inverter to adjust cutting
   speed according to different materials.

Block Cutters T14 SM – T16 SM:
As a tradition Terzago the block cutters are built with dimensional generosity, with strong cast iron bridge for a time performance of undisputed length.
Built in the four columns frame and in the two columns frame.
For marble and granite, mono or multi discs.

Block cutter with automatic cycle for cutting marble.
Heavy duty type for transforming blocks of marble and similar stone into strips. Built in cast iron on four columns. Connecting beams and over-size bridge in cast iron.
Working speed of electrically powered blade-head unit can be regulated.
Hydraulic opening/closing of horizontal blade with dedicated line.
Transverse bridge movement is electric with rack/pinion system, running on interchangeable levels and positioning with encoder.
Vertical movement with four precision screws mounted on columns with four worm screws. Four counter-screws prevent accidental falling of bridge. One-speed step-cutting motor for rotation of screws synchronised by connecting shaft; encoder for positioning.
Main transmission by high performance tracks with oil-bathed gear box. Shaft rev. changes by pulley Motorised block carriage.
Centralised lubrication. Water-tight electrical cabinet.
Control panel with keyboard and real-time display of operator instructions, alarms and operating parameters.

FEATURES
Max blade size of 1600 mm (63 in).
Attachments on request:
- inverter, electronic variator of the speed of rotation of the vertical blades (400-800 rpm) and of the horizontal blade (1400-2000 rpm) for motor up to 150 hp;
- 2,2 x 3 m trolley;
- rotating trolley of 2,2 x 2,8 m and a carrying capacity of 20000 kg;
- automatic discharge conveyor for marble 250 kg maximum.

FEATURES
Load-bearing structure composed of four vertical columns
joined together by crossbeams. Bridge-trolley unit lifted by means of four screws guided by sliders with slide blocks made of anti-friction material; the entire unit is protected by a stainless steel guard. Vertical movement is performed by means of a selfbraking gearmotor driven by inverter.
Large-sized shoulders with milled surfaces and hardened steel interchangeable tracks on which the disc-carrying bridge-trolley unit slides. Sliding takes place on roller cages in oil bath protected by PVC bellows.
The overhead bridge unit with a robust electro-welded steel structure in which two V-shaped guides have been formed for the trolley to slide on. A self-braking gearmotor driven by inverter is used to drive the trolley, fitted with a braking device positioned on the opposite side to the gearmotor to guarantee its correct and stable positioning during cutting. A rack and pinion with slanting teeth and corresponding inverter-driven gearmotor are used to translate the overhead bridge unit.
Disc-carrying trolley sliding on broad cross-section cast iron prismatic slide blocks in oil bath protected by special guards.
Movement is performed by means of a rack and pinion with slanting teeth and corresponding inverter-driven gearmotor.
110 mm disc shaft, for the use of 1 1600 mm diameter discs.
To guarantee a long service life and maximum resistance to corrosion, all the surfaces have been sand-blasted, galvanised and carefully painted with dual component epoxy paints.

AUTOMATIC ELECTRONIC BLOCK-CUTTER FOR MARBLE AND GRANITE
Sawing machine able to transform marble and granite blocks into semimachined slabs having a maximum height of 1500 mm and the thickness desired.
FEATURES
Max blade size of 3500 mm (137.8 in).
Block holder trolley with electronically-controlled positioning with decimal tolerances and adjustable speed.
Movement of the blade holder slide drivens by a rack-pinion on guides in oil bath, free of maintenance with protections made of stainless steel. Separate regulation of the cut/return speed and the head limit stops from the control board.
Possibility to program a reduction of cut increment at the beginning of the cycle to facilitate the entrance of the blade in the block.
Columns, bridge and operating head made of highly resistant cast iron and protections of stainless steel for a perfect dimensional stability and a long-lasting life.
Switchboard including all the operating controls and the colour display. The POLYAX COLOR controls 3 axes of movement.
Possibility to set in multiple cuts 9 diff erent translation measures, repeatable up to 99 times. Possibility to program up to 9 different cutting heights and lenghts in order to work at the same time with blocks having different sizes.
Attachments on request:
- extra 2,2 x 3 m trolley;
- additional machined rail to extend the loading length by multiples of 3 m;
- additional unworked rail to extend the loading length by multiples of 3 m;
- inverter electronic variator of the speed of rotation of the vertical blades (150-300 rpm) for motor up to 50 hp;
- binario grezzo supplementare per allungare la corsa di carico di 3 metri;
- inverter variatore elettronico della velocità di rotazione dei dischi verticali (150-300 rpm) per motore fino a 50 hp.

Circular Blocksaw for Blades up to 2200 mm
The heavy bridge saw of the TB 1600 series with blade diameters up to 2200 mm is the optimal machine for sawing medium-sized blocks. It combines a sophisticated design with an intelligent control system. This very powerful saw is characterized by a high degree of operational reliability coupled with low tool costs and is the first choice especially in soft stone (limestone, sandstone, etc.).

ELECTRO-HYDRAULIC BLOCK-CUTTER
with automatic cycle for cutting marble - T13LL
Orthogonal disc block-cutter, suitable for transforming rough marble or stone of normal hardness into strips. Cutting and return movements are hydraulic, while the other movements are mechanical with a high degree of accuracy. Equipped with motorized block carriage, cable winder and control push-buttons. Automatic hydraulic engagement and release of horizontal disc head. Automatic adjusted (slower) initial disc travelling speed when entering block. Programmable cutting depth and thickness with digital display. Cutting, return, travelling and bridge lowering operations are automatic. Electrical control unit is independent from the machine body with mobile push-button panel placed on the RIGHT side of the machine, with disc water ejection towards the LEFT.

MAXI 3000 RX and MAXI 3500 RX are sawing machines with a jumbo disc for cutting marble and granite at the desired thickness. These machines follow the Simec philosophy of the NT2 block cutters, with 2 columns fixed to the ground and the mobile block carrying trolley, to guarantee the absence of vibration, high productivity and long diamond lifetime.

4 columns block cutter for cutting granite, lava stone and marble blocks into strips by means of a set of vertical diamond discs and a horizontal disc. It works on stationary block.
M585 is available in several versions according to the vertical discs maximum diameter (from 1300 to 1700 mm) and to the maximum number of vertical discs (34 or 56 discs). It can be equipped with automatic or semi-automatic unloaders.
This 4 columns machine cuts stationary block and produces 460/650 max. wide strips with thickness dimension from 10 mm for modulgranito up to 80 mm for paving stones.
The machine can work even without block carrier trolleys since all movements are performed by its operational units.
M585 machine maintains in time top cutting precision with minimum diamond discs consumption and very reduced costs for production maintenance and depreciation.
The four holding columns, with their large foot bases strongly fixed to the foundation, are stiffened at the top ends through sturdy connecting beams and side ribs.
Four sliders, that move along the columns, support the transversal beams/bridge assembly. All such components, that were made in normalized large thickness steel work, form an extremely rigid structure.
The discs holder trolley, driven by a gear motor/pinion/rack system, slides along two “V” guides in oil bath with the interposition of anti friction slides.
In addition to this, four contrast wheels compact trolley and bridge to realize a “ clearance- free”trolley sliding system.
The discs stack, that is positioned on the trolley/bridge assembly centreline, favours the whole discs holder trolley mass to integrate in a balanced way the contrast wheels action.
Oleodynamic plungers lock automatically the two mobile uprights to the transversal beams during the vertical cutting phase.
Owing to this peculiar construction technology, M585 reduces to zero the discs traction action on the trolley, eliminates vibrations and realizes high quality cuts combined with very reduced diamond consumption.
The cutting parameters are pre set through the key board. Work cycles are controlled through PLC, positions and parameters are visualized in real time on display.
All motion motors are controlled through vectorial inverters and the movements precision is ensured though position digital transducers(encoder).
The inverter for main motor speed control and adjustment, particularly recommended for the optimal discs utilization, is available as optional.
The large dimension remote electric panels are air-conditioned by means of a heath exchanger and are dust proof and water proof in compliance with I P 54 ( EN 60529) standards.

4 columns block cutter machine for cutting marble, travertine and limestone blocks into strips by means of one or more vertical discs and a horizontal disc. It works on stationary block.
M586 is available in several versions according to the vertical disc maximum diameter (from 1300 to 1700 mm), the cutting system and the main motor power. It can be equipped with automatic or semi-automatic unloaders.
Pedrini M586 block cutter is the result of the technological evolution deriving from the manufacturing of more than 2000 models and includes all the necessary characteristics for the production of strips by means of diamond discs.
M586 stands out for its versatility in the cutting of blocks with various dimension and with more or less regular and squared shapes.
The building semplicity, the simple use and the flexibility of every single model of M586 allow for the easy interchange and substitution of diamond discs.
During the cutting phases the diamond discs are cooled ith water by means of distributors designed to ensure their perfect lubrification.
M586 manufacturing technologies allow for the utilization of an up to 220 HP vertical disc motors, making profit of the whole installed power to achieve the maximum cutting speed.
The 4 columns producing the up and down Y axis movement are solidly anchored to the foundations and are stiffened at the top through three connecting beams.
Two reinforcing ribs allow to have the frontal part open to facilitate the usage of the various strips unloading systems and the possible loading of the block directly inside the machine, on the ground level.
The columns house the low friction precision screws, which are synchronized through three shafts that connect the angle transmissions placed on each column. These screws operate into lead nuts mode in antifriction alloy fixed onto the sliders, which travel along the guides that are directly machined onto columns structure.
All lead nuts are equipped with a drop safety system that activates when these are worn.
The bridge movement on Z axis from right to left takes place on two movable beams fixed on the up and down sliders.The translation movement of the bridge is machined on the upper part of the beams by sliding on an anti-wear rollers cage to facilitate the side sliding.
The bridge, built in large thickness normalized steel work with honeycomb structure, houses the transmission for the right-left movement and it is composed of a connection shaft driven through a gear motor/pinion/rack system.
The exclusive double “V” guides which drive the disc holder trolley in a constant and linear way along the cutting and return strokes X axis, are machined onto the upper part of the bridge. A series of oil pits ensure the “V” guides lubrication during the cutting and return stroke movement.

This AUTOMATIC CYCLE machine, that was designed for the sawing of 1000 max. high blocks, is targeted to the production of large thickness slabs for tombstone art, building elements and paving stones.
The axis positioning is ensured by a PLC controlled system that comprises electronic vector regulators (inverters) and position digital transducers (encoders).
Disc down feed can be programmed during last phase of each cutting stroke thus permitting stroke immediate reciprocation and consequent “PENDULAR” motion that eliminates unproductive time.
The machine is equipped with VANISHING DISC that reduces noise level in any working position. Owing to the components high quality, to the sturdiness and precision of the mechanical parts, M950EF is an highly productive and reliable machine that maintains its great efficiency in time.
Two large contact surface “V” guides, machined onto the bridge, allow for trolley clearance- free sliding driven by a rack/pinion system.
Anti friction slides between trolley and bridge and continuous lubrication oil pits cut along the “V” guides enable the trolley stroke to be smooth and without vibrations even in case of high travelling speed.
Contrasting wheels, that compact trolley and bridge, allow discharging of the cutting stress directly onto the foundations.
The disc holder unit comprises an upper platform for main motor mounting and the spindle assembly that are connected to form a sole body through three ground chrome plated large diameter columns that slide vertically into protected housings machined onto trolley structure.
The two columns in front position absorb longitudinal stress caused by cutting action and improve disc performance.
Vertical displacement is driven in a balanced way through two synchronized screw/lead nut systems motioned by encoder controlled gear motor.
Bridge moves along two track ways fixed onto foundations. Bridge transversal displacement is driven through two rack/pinion systems that are synchronized through a connecting shaft motioned by an encoder equipped and inverter adjusted speed gear motor.
Bridge sliding along track ways is guided through two pairs of bearing wheels, with large centreline distance (1200 mm), that ensure bridge stability.
A system of auxiliary contrast wheels reacts to all vertical stress and allows for a very smooth disc performance。

The working centers MAXI RX MOB offer high precision requisites thanks to the translation system of the cutting bridge made with interchangeable steel “V”slides of high resistance, that can also be ground, as well as the precision motors and reducers, synchronized by encoder on each column. Once the machine places itself on the cutting point, it locks its position as to avoid vibrations and accidental movement.

1) Siemens smart PLC control system makeshigh automation performance and easy.
2) Adopts 4 pillars for spindle sliding, which ensure the structure of the machine is steady and the lifting is stable.
3) Two-slider frame structure driven synchronized by screw with high stiffness and stability.
4) Sliding system of X and Y axes on linear guides and racks both in oil bath lubrication grants smooth and high production.