NC Torsion Bar Press Brake

With advanced design,advanced configuration and fashion appearance, Press brake advantage is high rigidity,high precision and high efficiency .

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Description Specification Details Pictures

Standard configuration:

Double cylinders control ram moving upward and downward.
Right-and-lift balance achieved by torsion synchronization.
NOK Japan layer seals for main cylinders.
Schneider key electrics.
Upper tools fast clamps.
Standard front supports arms.
Motor:Siemens,Germany.
Oil pump:Rexroth,Germany
Hydraulic system:Rexroth,Germany
Clip-and -sleeve pipe system.
The two fingers of back-gauge for 2500mm length machine( three fingers for 3200mm length machine; four fingers for 4000mm)
Electrical cabinet with ABB switch power outage.
With safety side door and back doors.
Optional ESTUN 300,Holland DA41S system

Features
1.Hydraulic / Mechanical ram, synchronised positive stop design, ram stroke controlled by precision mechanical nut depth stops built into each cylinder. Electronically controlled by Estun NC-E21 Programmable digital control assuring accurate repeatability.
2.Parallelism is ensured by torsion bar that can be easily adjusted by clutch system.
3.Estun NC-E21 programmable digital control stores up to 40 unique programs with 25 automatic progressive bending steps in each individual program, assuring production accuracy & repeatability every time.
4.Estun NC-E21 programmable hardened ballscrew back-gauge system, simply enter the desired measurement into the controller and press go, the backgauge then will move quickly into the position you have requested. The superior hardened ballscrew system eliminates any backlash that leadscrew type machines produce.
5.Segmented heavy duty 86° offset top punch is segmented for return bend clearance, complete with European style punch holder with an adjustable wedge clamping system for crowning. Intermediate clamp has safety key to stop punch dropping.
6.Multi vee ('V') bottom die is made from one 3200mm solid die block design to handle heavy plate, safety edge vee ('V') is incorporated in bottom die block.
7.Conveniently mounted control box on pendant for quick swivel and adjustments.
8.Mono-block steel frame design, welded then machined to ensure Min bed deflection under load
9.Enclosed rear gate with micro safety switches complete with sliding rear door for easy access.
10.European Intermediate clamping system, allowing operator to change position of tooling to suit multiple requirements on complex applications. This feature ensures Min down time, more productivity and results in reduced cost per finished product.
11.Sliding steel fabricated sheet supports enabling a wide range of material sizes to be aligned and supported at the correct required height. This feature is achieved with a "T" slot machined down the total length of the die bed sheet supports are also adjustable vertically to assist in supporting material with return bends already folded.
12.Adjustable sliding blocks control the machines beam to provide desirable open height distance to the (slow speed) mute bending point. Operator adjustable locking knobs for quick adjustment, enables accurate repeatability and increased productivity.
13.Metal safety guarding surrounding the machine with rear sliding door fitted and micro switch ensuring operator safety. Clear access panels placed at each end of machine allows the operator to clearly view tooling and work piece during bending operation.
14.Hydraulic MPA pressure gauge mounted on right side of support frame with quick adjusting pressure control knob allowing operator to accurately set the pressure required for different material thickness, incorporating with hydraulic overload protection.
15.Welded steel fabricated synchronised torsion bar horizontally supporting main bending beam to provide consistent parallelism that also can be adjusted for taper correction.
16.The vertical supporting slides are treated to provide greater ware resistance and increased accuracy.
17.Reinforced side frames providing addition support strength to machine throat
18.Mild steel capacity is rated on hot rolled material with 250MPA
Includes:
1.Swivel pendant control unit operated by Estun NC-E21 control.
2.Sliding front sheet support arms.
3.Emergency stop buttons conveniently located on control panel and foot control.
4.Mobile dual operation foot control.
5.Segmented 86° offset top punch.
6.Solid one piece four way multi vee (V) die block.
7.Top punch tool intermediate holder system with wedge type adjustment.
8.Powered hardened ballscrew back-gauge with 550-1000mm travel, operated by Estun NC-E21 control.
9.Oil tank level indicator.
10.Metal constructed safety guarding surrounding machine with clear side viewing panels.
11.Integrated hydraulic system allowing rapid approach switching automatically to slow bend.
Please see the Youtube video as following:

EB5 Series Technical Parameters

Model	Nominal pressure (mm)	Worktable length (mm)	Distance between housings (mm)	Throat depth (mm)	Stroke (mm)	Max. opening height (mm)	Power (KW)	Dimension LxWxH (mm)
30T/1600	300	1600	1280	200	80	285	3	1600x1000x1600
35T/2000	350	2000	1480	200	80	285	4	2000x1100x1800
40T/2200	400	2200	1850	230	100	320	5.5	2200x1200x1910
40T/2500	400	2500	1850	230	100	320	5.5	2500x1200x1910
50T/2500	500	2500	1850	230	100	320	5.5	2500x1200x2000
63T/2500	630	2500	1900	250	100	320	5.5	2500x1300x2210
63T/3200	630	3200	2500	250	100	320	5.5	3200x1300x2210
80T/2500	800	2500	1900	300	100	320	7.5	2500x1400x2300
80T/3200	800	3200	2500	320	100	350	7.5	3200x1500x2300
80T/4000	800	4000	3000	320	100	350	7.5	4000x1500x2400
100T/2500	1000	2500	1900	320	120	320	7.5	2500x1600x2400
100T/3200	1000	3200	2500	320	120	370	7.5	3200x1600x2600
100T/4000	1000	4000	3000	320	120	370	7.5	4000x1600x2700
125T/3200	1250	3200	2500	320	120	370	7.5	3200x1600x2600
125T/4000	1250	4000	3000	320	120	370	7.5	4000x1600x2700
160T/3200	1600	3200	2500	320	200	460	11	3200x1700x2700
160T/4000	1600	4000	3000	320	200	460	11	4000x1700x2800
160T/5000	1600	5000	4000	320	200	460	11	5000x1900x3100
160T/6000	1600	6000	4940	320	200	460	11	6000x1900x3200
200T/3200	2000	3200	2500	320	200	460	11	3200x1950x2800
200T/4000	2000	4000	3000	320	200	460	11	4000x1950x2800
200T/5000	2000	5000	4000	320	200	460	11	5000x1950x3000
200T/6000	2000	6000	5000	320	200	460	11	6000x1950x3300
250T/3200	2500	3200	2500	400	250	590	18.5	3200x2000x3200
250T/4000	2500	4000	3000	400	250	590	18.5	4000x2000x3400
250T/5000	2500	5000	4000	400	250	590	18.5	5000x2000x3400
250T/6000	2500	6000	5000	400	250	590	18.5	6000x2000x3400
300T/3200	3000	3200	2530	400	250	590	22	3200x2000x3450
300T/4000	3000	4000	3000	400	250	590	22	4000x2000x3450
300T/5000	3000	5000	4000	400	250	590	22	5000x2000x3450
300T/6000	3000	6000	5000	400	250	590	22	6000x2000x3450
400T/4000	4000	4000	3000	400	250	590	30	4000x2180x3400
400T/5000	4000	5000	4000	400	250	590	30	5000x2180x3500
400T/6000	4000	6000	5000	400	250	590	30	6000x2180x3800
500T/5000	5000	5000	4000	400	250	590	45	5050x3500x3700
500T/6000	5000	6000	5000	400	320	590	45	6050x3500x3700
600T/4000	6000	4000	3000	400	320	590	55	4050x4500x3700
600T/6000	6000	6000	5000	400	320	590	55	6050x4500x3700
800T/6000	8000	6000	5000	400	320	590	55	6300x4500x6000

Note: No notice if any changes of the above statistics made.

Integral Welding Steel Plate, Carbon Steel The integral welding of vertical plate of front worktable and press brake body ensured no gap between worktable vertical plate and side plate.
Controller with Suspension Arm E21s, Estun The press brake controller adopts suspension device which refers to man-machine engineering design, making the controller not only easy to be controlled but also with high accuracy and comfort.
Front Support Arms Standard The front support arms is in simple structure and powerful functions. It can be adjusted up and down and can move along the worktable.
Electric System Schneider, France The stability of the machine is guaranteed by using the French Schneider electrical components, and the vibration of the X axis is eliminated by the inverter of Taiwan SHIHLIN brand.
Open Door Power-off Function For Safety Protection The design of the open door power-off function ensures the safety of the operators.
Motor Siemens, Germany Adopt Siemens motor to guarantee the service life of the press brake and reduce the noise at work.
Oil Pump Sunny, USA The Sunny oil pump from USA ensure the service life and reduce the noise of the press brake during working.
Pedal Switch Kacon, South Korea The KACON pedal switch with emergency button from South Korea increased service life and operating sensitivity.
Hydraulic System Rexroth, Germany 1.The Japanese NOK sealing ring not only improved the service life of oil cylinder but also ensure that there is no oil leakage after long-term use. 2.Adopt Germany Rexroth brand integrated hydraulic system with hydraulic transmission, stable and reliable. The design of integrated hydraulic system can effectively reduce the problems caused by hydraulic oil leakage. 3.Adopt Germany EMB tubing and connector to reduce the welding slag block the valve and keep the hydraulic oil flow smoothly inside.
Mechanical Punch Holder Fast Clamp, Standard The tool clamping system in mechanical which make it much safer for workers to change the punch.
Fast Clamp Time-saving,Optional The tool clamping system in mechanical which make it much safer for workers to change the punch.
Punch and Dies 42CrMo The press brake adopts 42CrMo material, and the heat treatment temperature reaches 42 degrees, which guarantees the service life of the die.
Back Stopper Customize Amount optional The back stopper can be moved left and right manually in order to meet production requirements. The forward and backward movement are controlled by the system.
Straightness Adjustment Mechanical The worktable straightness of the press brake is adjusted through the specailly designed screw on the ram.
High-precision Backgauge System HIWIN Ball Screw, Taiwan 1.The high-precision motorized backgauge adopt precision ball screw and rod which driven by high performance motor in order to guarantee positioning accuracy. 2.The backgauge is equipped with shell horizontal mounting structure with high stability. Besides, it’s in single shell dual rail guide with high precision. The X-axis movement is automatically controlled by the controller. 3.Standard X-axis movement together with manually adjustment of R axis. The back stop finger can move left and right along the dual rail track.
Safety Gates Safety Protection The left, right and rear gates of the press brake ensure the safe operation of the workers.
Back Emergency Stop Switch and Stroke Switch Schneider electrical components The rear emergency stop switch and stroke switch adopt Schneider electrical components in order to ensure stable control and long service life.
Hydraulic Crowning Optional Connect with controller The hydraulic crowning will improve bending accuracy and straightness.
Mechanical Crowning Manual Optional The mechanical crowning will improve bending accuracy and straightness.
Laser Protection DSP, Italy Optional Italy’s DSP Laser front protection system with CE norm will ensure the safety of worker’s fingers.
Front Light Curtain China brand Optional Front light curtain with CE norm will ensure the safety of the worker’s fingers.
Rear Light Curtain China brand Optional Rear light curtain with CE norm will ensure the safety of the workers.
Fast Clamp KYOKKO, Japan Optional The mechanical fast clamp will reduce the die changing time greatly.
Die Holder Special Design Optional Press brake die holder make the change of die much more convenient and time-saving. And can section bottom die
Dual-V Die For thin sheet bending optional The dual-V die is optional for sheet metal bending.
Segment Die Customized The segment die is necessary for small workpiece fabrication.