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Press brakes

AD-R 25100
Durma Turkey
Inventory number: 231424

YOM:2014
Control system Cybelec: DNC 880 S
Bending power: 100 t
Bending length: 2550 mm
Number of driven axes: 4
Lower compensation movement: YES
Type of press drive: Hydraulický

AP 2100 x 35
ERMAK
Inventory number: 241351

YOM:2005
Bending power: 35 t
Bending length: 2100 mm
Number of driven axes: 2
Lower compensation movement: YES
Type of press drive: Hydraulický
Machine dimensions l x w x h: 2400x1400x2200 mm

AP 3100 x 120
ERMAKSAN
Inventory number: 241350

YOM:2002
Bending power: 120 t
Bending length: 3100 mm
Number of driven axes: 2
Lower compensation movement: YES
Type of press drive: Hydraulický
Main motor power: 11 kW

APH 2606/90
BAYKAL
Inventory number: 241359

YOM:2004
Bending power: 90 t
Bending length: 2600 mm
Number of driven axes: 2
Lower compensation movement: NO
Type of press drive: Hydraulický
Main motor power: 11 kW

APX 100/30
AMADA
Inventory number: 221464

YOM:1998
Control system Amada:
Bending power: 100 t
Bending length: 3000 mm
Number of driven axes: 7
Lower compensation movement: YES
Type of press drive: Hydraulický

B M 100-3100
Hämmerle
Inventory number: 232004

YOM:1997
Bending power: 100 t
Bending length: 3100 mm
Type of press drive: Hydraulický
Machine weight: 11500 kg
Main motor power: 15 kW
Equipment weight: 9 500 kg

B3 220/3000
Salvagnini
Inventory number: 241418

YOM:2016
Bending power: 220 t
Bending length: 3060 mm
Number of driven axes: 9
Lower compensation movement: YES
Type of press drive: Hydraulický
Ram stroke: 450 mm

CNCK 225 - 4300
Safan
Inventory number: 231843

YOM:1981
Control system SAFAN:
Bending length: 4300 mm
Bending power: 225 t
Rated deformation force press: 225 t
Table dimensions: 4300 x 250 mm
Main motor power: 15 kW

CNCL-K 120-3100 TSI
Safan
Inventory number: 191175

YOM:2002
Bending power: 120 t
Bending length: 3100 mm
Number of driven axes: 3
Lower compensation movement: YES
Type of press drive: Hydraulický
Ram stroke: 180 mm

CPR135 - 4000
Salvagnini
Inventory number: 231225

YOM:2003
Bending power: 135 t
Bending length: 4000 mm
Number of driven axes: 7
Lower compensation movement: YES
Type of press drive: Hydraulický

CTO 160
Stroje a zariadenia Piesok s.r.o.
Inventory number: 221685

YOM:1992
Bending power: 160 t
Bending length: 4000 mm
Type of press drive: Hydraulický
Main motor power: 16,50 kW
Machine dimensions l x w x h: 4000 x 1690 x 2630 mm
Machine weight: 12100 kg

CTO 160/3150
Stroje a zariadenia Piesok s.r.o.
Inventory number: 231156

YOM:1991
Bending power: 160 t
Bending length: 3150 mm
Type of press drive: Hydraulický
Main motor power: 11 kW
Machine dimensions l x w x h: 4000x1540x2960 mm
Machine weight: 11500 kg

CTO 250 A/4000
Espe
Inventory number: 241239

YOM:1995
Bending power: 250 t
Bending length: 4000 mm
Type of press drive: Hydraulický
Table dimensions: 4000 x 200 mm
Main motor power: 22 kW
Machine dimensions l x w x h: 4900 x 1770 x 3250 mm

CTO 400/5000
Stroje a zariadenia Piesok s.r.o.
Inventory number: 142095

Bending length: 5000 mm
Bending power: 400 t
Table dimensions: 300 x 5000 mm
Throat: 315 mm
Main motor power: 37 kW
Machine dimensions l x w x h: 5900 x 2010 x 3600 mm

CTO 80/2500
Espe
Inventory number: 241179

YOM:1997
Bending power: 80 t
Bending length: 2500 mm
Type of press drive: Hydraulický
Machine dimensions l x w x h: 2500 x 2385 x 1250 mm
Machine weight: 5 700 kg

CTO 80/2500
Stroje a zariadenia Piesok s.r.o.
Inventory number: 221579

YOM:1992
Bending power: 80 t
Bending length: 2500 mm
Type of press drive: Hydraulický
Table dimensions: 2500 x 160 mm
Machine dimensions l x w x h: 2500 x 2385 x 1250 mm
Machine weight: 6100 kg

CTO 80/3200
Espe
Inventory number: 201925

YOM:1986
Bending power: 80 t
Bending length: 3200 mm
Type of press drive: Hydraulický
Throat: 250 mm
Max. ram stroke: 150 mm
Clearance between columns: 2050 mm

DEC 320/4000
Digep
Inventory number: 092690

Bending power: 320 t
Bending length: 4000 mm

E 37300
Durma Turkey
Inventory number: 241011

YOM:2008
Bending power: 300 t
Bending length: 3700 mm
Number of driven axes: 3
Lower compensation movement: YES
Type of press drive: Hydraulický
Ram stroke: 245 mm

E-BRAKE 100-3100 TS1
Safan
Inventory number: 241074

YOM:2007
Bending power: 100 t
Bending length: 3100 mm
Number of driven axes: 6
Lower compensation movement: NO
Type of press drive: Elektrický
Clearance between columns: 3160 mm

GEB 100/3000 NC
Györ-Sopron Géfi
Inventory number: 231042

YOM:2000
Bending power: 100 t
Bending length: 3000 mm
Number of driven axes: 1
Lower compensation movement: NO
Type of press drive: Hydraulický
Main motor power: 7,5 kW

HFBO 220/3000
AMADA
Inventory number: 241430

YOM:1998
Bending power: 220 t
Bending length: 3000 mm
Number of driven axes: 5
Lower compensation movement: NO
Type of press drive: Hydraulický
Machine weight: 13500 kg

HFE 100-3
AMADA
Inventory number: 231690

YOM:2006
Control system Amada: Operateur 2000
Bending power: 100 t
Bending length: 3000 mm
Number of driven axes: 8
Lower compensation movement: NO
Type of press drive: Hydraulický

HFE 3i 1003
AMADA
Inventory number: 241019

YOM:2021
Control system Amada:
Bending power: 100 t
Bending length: 3200 mm
Number of driven axes: 8
Lower compensation movement: YES
Type of press drive: Hydraulický

HFT 130-4
AMADA
Inventory number: 231780

YOM:2005
Control system Amada:
Bending power: 130 t
Bending length: 4200 mm
Number of driven axes: 4
Lower compensation movement: YES
Type of press drive: Hydraulický

12

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. 

There are following 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.

Press brake control

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 . 

  • Manual mode
  • Semi-automatic mode
  • Automatic mode

Types of press brakes

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.

Manufacturers of press brakes

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.