Name of a product | Inventory number | Producer | YOM | Parameters | ||
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CTO 80/2500 |
221579 | Stroje a zariadenia Piesok s.r.o. | 1992 | Bending power: 80 t Bending length: 100 in Type of press drive: Hydraulický Table dimensions: 100 x 6.4 in Machine dimensions l x w x h: 100 x 95.4 x 50 in Machine weight: 6100 kg |
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CTO 400/5000 |
142095 | Stroje a zariadenia Piesok s.r.o. | Bending length: 200 in Bending power: 400 t Table dimensions: 12 x 200 in Throat: 12.6 in Main motor power: 37 kW Machine dimensions l x w x h: 236 x 80.4 x 144 in |
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CTO 250 A/4000 |
241239 | Espe | 1995 | Bending power: 250 t Bending length: 160 in Type of press drive: Hydraulický Table dimensions: 160 x 8 in Main motor power: 22 kW Machine dimensions l x w x h: 196 x 70.8 x 130 in |
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CTO 160/3150 |
231156 | Stroje a zariadenia Piesok s.r.o. | 1991 | Bending power: 160 t Bending length: 126 in Type of press drive: Hydraulický Main motor power: 11 kW Machine dimensions l x w x h: 160 x 61.6 x 118.4 in Machine weight: 11500 kg |
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CTO 160 |
221685 | Stroje a zariadenia Piesok s.r.o. | 1992 | Bending power: 160 t Bending length: 160 in Type of press drive: Hydraulický Main motor power: 16,50 kW Machine dimensions l x w x h: 160 x 67.6 x 105.2 in Machine weight: 12100 kg |
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CPR135 - 4000 |
231225 | Salvagnini | 2003 | Bending power: 135 t Bending length: 160 in Number of driven axes: 7 Lower compensation movement: YES Type of press drive: Hydraulický |
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CNCL-K 120-3100 TSI |
191175 | Safan | 2002 | Bending power: 120 t Bending length: 124 in Number of driven axes: 3 Lower compensation movement: YES Type of press drive: Hydraulický Ram stroke: 7.2 in |
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CNCK 225 - 4300 |
231843 | Safan | 1981 | Control system SAFAN: Bending length: 172 in Bending power: 225 t Rated deformation force press: 225 t Table dimensions: 172 x 10 in Main motor power: 15 kW |
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B3 220/3000 |
241418 | Salvagnini | 2016 | Bending power: 220 t Bending length: 122.4 in Number of driven axes: 9 Lower compensation movement: YES Type of press drive: Hydraulický Ram stroke: 18 in |
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B M 100-3100 |
232004 | Hämmerle | 1997 | Bending power: 100 t Bending length: 124 in Type of press drive: Hydraulický Machine weight: 11500 kg Main motor power: 15 kW Equipment weight: 9 500 kg |
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APH 2606/90 |
241359 | BAYKAL | 2004 | Bending power: 90 t Bending length: 104 in Number of driven axes: 2 Lower compensation movement: NO Type of press drive: Hydraulický Main motor power: 11 kW |
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AP 3100 x 120 |
241350 | ERMAKSAN | 2002 | Bending power: 120 t Bending length: 124 in Number of driven axes: 2 Lower compensation movement: YES Type of press drive: Hydraulický Main motor power: 11 kW |
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AP 2100 x 35 |
241351 | ERMAK | 2005 | Bending power: 35 t Bending length: 84 in Number of driven axes: 2 Lower compensation movement: YES Type of press drive: Hydraulický Machine dimensions l x w x h: 96 x 56 x 88 in |
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AD-R 25100 |
231424 | Durma Turkey | 2014 | Control system Cybelec: DNC 880 S Bending power: 100 t Bending length: 102 in Number of driven axes: 4 Lower compensation movement: YES Type of press drive: Hydraulický |
Forming machines used for processing (bending) of sheet metal. These machines are currently replaced by bending machines, because they are hydraulically driven and can work with greater pressures and lengths of bent parts.
During this kind of material processing , there is no waste and semi-finished products are used. It is also possible to bend very small workpieces of very small radius.
Different types of punches and dies are used here as tools. These tools can be of different shapes and lengths. To clamp these tools mechanical or hydraulic clamping is used. Laser inspection can be used for maximum tool accuracy. Mechanical systems are used to drive the press, with an electric motor driving a system of pulleys and belts. Or a hydraulic one, which drives the hydraulic unit via an electric motor and the latter moves the ram through the pressure of the cylinders.
The rear stop is very important for a press brake. It ensures the correct positioning of the workpiece in the machine. Semi finished product is pressed against the thumb, which is on the stop and ensures the correct position with respect to the tool. The rear stop is controlled by a CNC system and it moves to precise positions according to the program. Machine can operate in up to 6 axes.
X - along which the stop moves forward and backward
Z - along which the stop moves to the left or to right
R - along which the stop moves up and down
Another important function of press brakes is cambering. It is a process when the the long parts are bended the resistance of the material to the upper tool, elastic deformation of the part of the ram with the punch occurs. This can be prevented by underlying the matrix in the central part, grooves on the edges of the working table or automatic system.
Today, press brakes are controlled by a computer systems. Based on the entered values (material, tools, length, etc…) calculates the production process, the movement of the stops or the bending force. Afterwards the machine can work in three following modes .
Press brakes are designed with different types of drivers such as machines with manual control, mechanical or hydraulic driver. Each has its advantages and disadvantages. Furthermore, it is possible to divide press brakes according to their construction into segmental, tandem and combined.
Most popular manufacturers are TRUMPF, DURMA, SAFAN DARLEY, BYSTRONIC, GASPARINI, Haco, Beyeler, Promecam, Hämmerle.
Currently, the most widely used and manufactured are hydraulic press brakes, which are CNC controlled.Top machines are from following manufacturers: Trumpf, Amada, Bystronic. These manufacturers use either their own CNC system for control or universal ones such as Delem, Cybelec, ESA.. These machines achieve a high level of automation of the operating cycles and therefore the maximum use of their capabilities. Of course press brakes from these top manufacturers are very expensive to purchase.