VarioPress

Bending

Customized solutions. From standardized individual machines to fully automated systems.

COMMITTED TO UPHOLDING ITS TRADITION.

Everything started in 1771 with a hammer mill. 1771

– the Enlightenment was in its infancy at the time, and

Johann Wolfgang von Goethe wrote his “Götz von

Berlichingen”. And in Teningen we were beginning to

produce devices for agriculture and forestry. EHT is thus

one of Germany’s oldest companies.

EHT has been producing machine tools for processing

sheet metal since 1950: with its experiences from the

past and looking forward to the future – and with the

ambition to keep improving.

TECHNOLOGY AND SERVICE AT THE

HIGHEST LEVEL.

Press brakes and guillotine shears from EHT are high-tech

products used in sheet metalworking and employed

worldwide. With branches in Germany, Poland and

Russia, as well as a variety of sales cooperations, EHT

is internationally active without giving up the firm basis

of its headquarters in Teningen, Baden-Württemberg –

thus all EHT machines are still “made in Germany”.

EHT has always been characterized by its many years’

experience in the production of standardized all-round

machines and complex customer-specific sheet bend-

ing solutions, the extreme demands that it makes of its

own performance, as well as its professional consulting

service and fairness. And this will remain the case in

future!

EHT – WHO WE ARE:

> We are a family-run medium-sized company,

active worldwide, with a balanced range of

products for sheet metalworking.

> We have great experience, gained over

many years, in the production of standardized

machines and highly complex plants.

> We focus on the customer – regardless of

which sheet bending challenge must be

mastered.

As one of Germany’s oldest companies, based in Baden-Württemberg’s Teningen, EHT

produces machine tools for processing sheet metals – from the planning, through develop-

ment and production, to commissioning and service.

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Competence and passion: Everything at EHT has revolved around sheet metal processing – and our customers – for over 240 years. Our company is still characterized by the same high level of service competence, professional consulting, and fairness. And we are proud of this.

Then, as now: As your competent partner, EHT supports you with customized sheet bending technology.

Option: Floor-mounted machine

Up to a size of 6 meters and 400 tons the VarioPress is also available as a floor-mounted machine – thus preventing addi-tional costs for complicated foundations.

Quick-clamp mechanism and adapter technology

Particularly efficient and economical: Short equipping times ensure consid-erable cost and time savings.

“Laser Controlled Bending” angle measure-ment system and point-based crowning

The VarioPress offers maximum accuracy thanks to its LCB angle measurement system and adjustable crowning. LCB takes into account the type of material, its strength and the direction of travel.

Each one is different: The VarioPress customized especially for you is particularly economical and flexible as a result of your individually selected options. You decide on the bending force and working length you require. In combination with the particularly simple and user-friendly control system, as well as the highly accurate angle measurement system, the VarioPress is your bending solution for maximum demands.

Customized for you. We design and produce your VarioPress according to your requirements – for a bending solution ideally adapted to your operation.

The customized high-performance VarioPress is EHT’s premium product: Each press is

adapted to meet your individual needs, and fulfills precisely the criteria that you define.

Whereby it is always highly accurate and offers particularly simple operation. For per-

fect results from the first bended part.

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PERFORMANCE COMPARISON 2005 – TODAY

VarioPress ’05 VarioPress ’09 VarioPress ’13

Year introduced 2005 2009 2013

Maximum machine load 3000 kN/m Up to 6000 kN/m Up to 10000 kN/m

Control system 12” Cybelec ModEva 15” Cybelec ModEva 17” EPC-Touch

Press beam speed (Fast down, Action, Fast up) 100 -10 -120 170-10-170 170-10-170

Bending performance (VarioPress 2005 = Index 100) 100 115 135

Energy consumption (VarioPress 2005 = Index 100) 100 107 90

Low-maintenance pressure beam guide

Solid hardened adapter strip on pressure beam

Selective crowning system Option

Preparation for retrofitting of various assemblies Option Option Option

Material handling in machine interior Option Option Option

Material handling in machine front Option Option Option

Automatic tool-changing Option Option Option

Laser Controlled Bending (LCB) angle measurement system Option Option Option

Operator Safety Guard (OSG) safety system Basic Basic Productive

Ergonomic support bracket system Option Option

High-speed back gauge system with toothed rack drive

ToolShuttle Option Option

VarioV step tool concept Option Option

High-speed hydraulics (Fast down and Fast up)

Energy-efficient standby operation

Noise reduction

Central control panel

Freely definable tool parameters

Memory Limited Limited Unlimited

USB ports

Teleservice-enabled

The technical data for VarioPress are available at www.eht.de

Individualized machine geometries

The VarioPress is adapted to your needs and demands, depending on your range of products.

EHT Press Control

Uncluttered and intuitive operation, touchscreen, 2D (basic configuration) or 3D programming, infrared technology for non-contact operation, 3D simulation, high-resolution 17-inch color flatscreen, Windows CE operating system, USB connection.

“Operator Safety Guard pro” safety system

Newly developed camera- based safety solution with dynamic muting: maximum bending speeds whilst bending cycle times are reduced by up to 20 %.

INTUITIVE AND RAPID.

The new generation of EHT touch panels offers you all

the ease-of-use and efficiency of modern control sys-

tems: considerably more rapid programming, operation

and control improves the productivity of your VarioPress

and permits direct navigation between production, pro-

gramming and machine adjustments. The functions can

be directly selected, saving valuable time navigating

and permitting more rapid and efficient setup of the

press brake.

PERFECTLY PROGRAMMED –

IN 2D AND 3D (OPTION).

The EHT controller permits programming that includes

calculation of the bending sequence and collision

detection both in 2D (basic configuration) and in 3D.

The program also offers feedback on product feasibility

and handling. Highly effective control algorithms opti-

mize the machine’s work processes and minimize setup

times. This simplifies use of the VarioPress, making it

more efficient and flexible than ever.

High-tech made easy. Programming is easier than ever thanks to the new and user-friendly EPC-Touch control system.

EHT’s newly developed high-tech EPC (EHT Press Control) system with touchscreen

offers considerably more efficient and easier programming, operation and controlling of

the VarioPress. You thus avoid errors and achieve an optimum bending precision with

maximum efficiency.

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Exceptionally clearly arranged and intuitive: EPC-Touch offers easy programming and operation of the VarioPress in 2D (basic configuration) and 3D.

Part management, 3D view Tool management Graphic programming

Intuitive operation: The uncomplicated system rapidly guides you through the programming and thus permits quicker machine setup.

EPC-TOUCH – YOUR ADVANTAGES:

1. Efficient step-by-step navigation through the menu

2. Optimized networking including Teleservice via the internet

3. Easy drawing of components and visualization in 2D and 3D

4. Intuitive handling and user-friendly programming

At the right angle – safely. A new safety solution and a highly accurate angle measurement system effortlessly ensure the success of every bending task.

Maximum precision from the very first bended part is a matter of course with the VarioPress.

The highly sensitive Operator Safety Guard productive (OSG pro) safety technology, the

tool-independent Laser Controlled Bending (LCB) angle measurement system, and the

dynamic hydraulic drive assist you in every bending task and help optimize your internal

production processes.

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EVERYTHING UNDER CONTROL.

Safety has always been a major concern for EHT –

together with Pilz GmbH & Co. KG we have now

developed a new camera-based safety solution, the

OSG pro (Operator Safety Guard productive), that

makes press brakes, and particularly the VarioPress,

even quicker and safer. The dynamic muting function of

this safety system shortens the bending cycle time con-

siderably because the upper tool can travel almost to

the workpiece at maximum speed whilst maintaining

enhanced safety.

AT THE OPTIMUM ANGLE.

The EHT LCB (Laser Controlled Bending) angle mea-

surement system optimizes your bending results from the

very first bended part because it prevents a complicated

adjustment process and reduces the number of rejects

to a minimum. The latest developments in laser and

optical electronics form the basis for a highly precise

and powerful device that offers flexible use. As a result

of its design as a tool-independent unit, the LCB can be

used with many tool geometries and special tools,

and offers the right response to rising cost pressure and

increasing quality demands.

Flexibility made easy: The angle measurement system can be freely positioned over the entire work length, either manually or as an optional NC axis.

Dynamic muting: While with normal muting processes the upper tool can only travel the final millimeters to the sheet at the permitted speed of 10 mm/s, with dynamic muting it travels at maximum speed until it almost touches the workpiece. The path that the upper tool travels with reduced speed is thus decreased to a minimum.

Stro

ke

Approx. changeover point

Approx. clamping point

Max. immersion depth

Bending cycle Time

– 20 %

EHT VarioPress with Operator Safety Guard productive safety systemPress brake with a conventional technology – Operator Safety Guard basic

Comparison of the bending performance

*VarioPress ‘05 = Index 100

VarioPress ’13

VarioPress ’09

VarioPress ’05*

90 100 110 120

+ 35 %

130 140

Shortening the bending cycle time

OSG AND LCB – YOUR ADVANTAGES:

1. Shorter bending cycle time and increased safety thanks to dynamic muting

2. Maximum angle measurement accuracy – for high-quality parts from the very first bend

INTELLIGENT TOOLS.

The VarioPress lives up to its name regarding its tool

system: differing bottom tool clamping variants – one

mechanical (basic configuration), one pneumatic and

one hydraulic design – permit tool technology that is

precisely coordinated to your range of part production.

Moreover the bottom tool shift of the VarioPress com-

bined with the Multi-V tool offer a major advance in

efficiency: Two different bending operations can be

carried out with just one tool. Even the most compli-

cated geometries can be implemented in one pass. And

it is child’s play to integrate even special tools, thanks to

the CNC-controlled incremental bottom tool shift.

PINPOINT PRECISION.

The VarioPress crowning system offers the possibility of

achieving pinpoint calibration – independent of the

fully automatic CNC crowning system – of even the

most varied of forming zones, e.g. blowouts in the

bending zone. In this way, accurate and consistent

bending angles can be achieved effortlessly. In addi-

tion, the crowning curve can be individually adapted

for centralized or off-center bending.

Intelligent and flexible. The clever VarioPress tool concept and the precise crowning system ensure easy handling and optimum bending results.

The intelligent tool concept of the VarioPress stands for maximum flexibility and eco-

nomic efficiency. By combining the fully automatic CNC with the point-based crowning

system you can balance tool accuracy and tool wear. You thus have the press brake

totally under control.

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Great bending freedom: The VarioPress offers you a free choice and maximum flexibility regarding the desired tool. Because, thanks to the bottom tool shift in combination with Multi-V tools it is possible, for example, to achieve pre-bending and folding without changing the tool.

Pneumatic design: System for accepting Multi-V dies with pneumatic tool clamp. Single-V dies (13 mm accep-tance size) can be used with supplementary adapter bar.

Mechanical design: System for accepting block dies with mechanical tool clamp. Single-V dies (13 mm acceptance size) can be used without supplementary adapter bar

MULTI-V – YOUR ADVANTAGES:

1. Low tool costs

2. Short equipping times through combination with bottom tool shift

3. Less storage space required

Selective crowning system: The crowning curve can be individually adjusted every 250 mm.

Bottom tool shift:Folding or pre-bending without tool change is possible with the VarioPress thanks to bottom tool shift.

A PERFECT FIT.

The VarioPress offers differing back gauge systems

depending on part geometry and complexity. They are

both particularly precise thanks to a special rack and

pinion drive and high axis dynamism.

You can choose from between three different systems

for your VarioPress: System I (the standard system) is

available with 2, 4 or 5 axes and can be positioned in

the X-, R- and Z-directions. The same applies for system

II which, however, is ideally suited for the use of back

bending aids and sheet supporting systems. With sys-

tem III (6-axis system) every stop finger can be inde-

pendently moved to any desired position – offering

maximum freedom for flexible production, for example

with bending lines running diagonally to the stop edge.

GRASPING THE CHALLENGE.

The VarioPress can be equipped with support brackets

or supplementary bending aids depending on the

application. Even handling-intensive, heavy or unstable

bending parts can thus be worked on by a single oper-

ator. The bending aids can be moved laterally over the

entire bending length and are adjustable according to

the particular bottom tool height. The bending aid can

withstand a load of up to 3000 N.

Perfectly positioned. The correct stop system and optimum material handling completes the VarioPress.

Totally in line with customer requirements: regardless of whether 2, 4, 5 or 6 axes,

whether a support bracket or bending aid – you decide what your VarioPress looks

like. We thus guarantee that your VarioPress is precisely configured to your needs and

bending demands.

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Optimize your VarioPress: All EHT stop systems and bending aids (optional) offer maximum precision and dynamism – and thus permit perfect bending results from the very first part.

Maximum freedom if required by customer: The 6-axis stop system for particularly flexible production.

Standard bar system for 2 to 5 axes. Modular system for 6 axes.Bar system for 2 to 5 axes (especially for bending aids and sheet support systems at the back).

YOUR EHT OPTIONS – YOUR ADVANTAGES:

1. Maximum precision and dynamism with all stop systems – up to 1200 mm/s (up to a bending length of 6050 mm)

2. Stop systems selectable according to requirement: 2, 4, 5 or 6 axes

3. Optional bending aids save time and energy

4. Supplementary support brackets for light and thin metal sheets

X-axisX-axis X1-/X2-axes

R-axisR-axis R1-/R2-axesZ1-/Z2-axesZ1-/Z2-axes Z1-/Z2-axes

X1-axisX1-axis

QUICKER AND LESS COMPLICATED TOOL

CHANGES.

Tool changes on large press brakes do not just involve

a lot of physical effort – they are also very time-consum-

ing. Companies that produce in small and medium-sized

batches, in particular, thus waste valuable hours re-equip-

ping several times a day.

The EHT ToolShuttle shortens equipping times immensely

and ensures considerably increased safety at work.

The tools “drive” into your machine easily and rapidly

on ball-bearing-mounted guide rails – and ensure the

immediate operational readiness of your VarioPress.

A POWERFUL DUO.

It is not the machine that should determine the part

length but quite the reverse. For this reason, the usual

maximum machine length of about 10 meters cannot

be the last word. EHT offers you tandem press brakes

that can be used and operated either individually or

together – for maximum bending freedom!

STRONG – EVEN WITHOUT FOUNDATIONS.

Large heavy machines mostly have only one optimum

position if they are anchored in a foundation. The

VarioPress, however, is also available as a floor-mounted

machine even with a bending length of up to 6 meters

and a bending power of 400 tons. The advantages are

obvious: freely selectable and changeable installation

location, no costs for complicated foundations, and

high price stability on the second-hand market.

More than just options. You have ambitious plans? Manual tool changes take too long? Our tandem machines and EHT ToolShuttle are the solution.

With our premium press brake we place the greatest value on flexibility and customer-

specific configurations. Our tandem press thus allows you to produce an extraordinary

range of part lengths and change tools particularly rapidly and safely with the ToolShuttle.

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Heavy equipment: A tool change can be a major time and cost factor – particularly with small batch sizes and heavy tools. The EHT ToolShuttle is your path to more efficient and safer production.

high price stability on the second-hand market.

A press power of up to 25000 kN and a bending length of 20 meters: The VarioPress as tandem machine is a customized, highly accurate, giant.

TANDEM, TOOLSHUTTLE, FLOOR- MOUNTED – YOUR ADVANTAGES:

1. Bending on up to 20 meters thanks to tandem design

2. Increased productivity through individual or tandem operation

3. Quicker and easier tool changes thanks to ToolShuttle

4. No expensive foundations thanks to floor-mounting

TRUMPF Werkzeugmaschinen

Emmendinger Straße 21 | 79331 TeningenTel.: +49 (0) 76 41 / 46 09-0 | Fax: +49 (0) 76 41 / 46 09E-Mail: info.twt@de.trumpf.com

www.eht.de

Werkzeugmaschinen Teningen GmbH

Emmendinger Straße 21 | 79331 Teningen 0 | Fax: +49 (0) 76 41 / 46 09-290

info.twt@de.trumpf.com | www.eht.de

www.eht.de

2015

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