PBT 25 Profile bending machines

PBT 25 Profile bending machines 

High-precision profile bending machines for the most challenging applications
Innovative bending technology for more than 25 years
At the Swiss company PBTAG, we develop and produce profile bending machines and digital control systems that satisfy the highest requirements in quality and
technical performance. Through the use of intelligent processes, our technologies have been setting industry standards since 1991, and are used in practically all segments of the metalworking industry: automotive, aerospace, window and building faćade engineering, conveyor technology, and much more.
Our claim
lndìvidual requirements in production technology call for specific solutions. In close cooperation with our customers, we design technical solutions for the efficient manufacturing of even the most complex bending tasks. From the planning to commissioning, our experts provide support in all project phases: This includes
planning, development, prototyping, series production, training of machine operators, and on-site installation. We provide advice and support during every application phase.
Global presence
Development, distribution and service for production facilities around the globe.
We deliver our services and products from the two main locations of PBT AG -
Weinfelden in Switzerland and Siegen in Germany (1NDUMASCH GmbH).
Selected service partners in many European, American and Asian countries
supplement our requirement for the highest service quality.

Industry solutions
Custom-fit solutions for efficient production of curved profiles.
Various industries and sectors that require the highest production quality components put their trust in the precision of PBT profile bending machines.
See an overview of application examples here.

Our profile bending machines
• Aгe flexible, high-precision, economical, fast and efficient
• Stand out for their high performance and versatility
• AlLow fast programmíng wíthout the need for programming skills, increase productivity and flexibility, and are intuitive to operate
• Permit uncomplicated tool changes
• Allow the use of special tools for steel, stainless steel and aluminium profiles
• Offer numerous additional equipment and expansions
• Can be produced as individual custom machínes where required

Our control systems
Manual
The manual version has a Siemens panel, which serves as the basis for the retrofitcompatible tablet versions TEACH-1N and TABLET350. This panel shows the operator the
current X-axis position of the feed roller, with a position detection precision of 0.01 mm.
The speeds of the feed roller and the rolling speed can be modified by the operator as
required, from crawling speed to rapid traverse. As an additional function, the Siemens
panel allows a variable front stop to be set on the X-axis.
This simplifies the implementation of a recurring bending radius in series production.
All axes aгe operated using touch controls.
TABLET Teach-ín
The TABLET Teach-in controlsystem allows small and large series to be manufactured
automatically. The programming takes place in teach-in mode, i.e. the operator teaches the
machine a single time using touch controls, and then the program can be repeated as often
as desired. The program directory allows existing data to be accessed and changed.
This TABLET Teach-in control system shows the operator the current X-axis position of the
feed roller with a position detection precision of 0.01 mm, as well as the Y-axis position for
the corresponding component length. The speeds of the feed roller and the rolling speed
can be modifíed by the operator as required, from crawling speed to rapid traverse.
Tablet 350
The PC-based control system for 3-roller bending machines was developed by PBT, and in
1995 it was the first to offer the capability of controlling bending tasks using software.
The TABLET350 was derived from the uncompromising PC400 control system, and offers
its main functions in an elegant format: bending programs can be created, managed and
controlled using the tablet, without the need for programming skills, lllustrated control
elements facìlitate intuitive operation during everyday work, while the graphic display
of the programmed workpiece with bending radii and bending lengths allows visual
inspection of the programmed data. The communication with the bending machine takes
place via WiFi. Data backups take place using a convenient USB port located on the outside
of the control unit.
The tablet can be mounted on the machine using the supporting arm supplied, and can be
adjusted for optimal operation. If greater freedom of movement is required, the wireless
data transmission makes it possible to move around freely in the room with the TABLET350.
PC400
A detailed description of the fullversion of the control system variant PC400 can be found
on the following pages.

PC400
Convenient creation and saving of bending programs
The PC-based control system for 3-roller bending machines was developed by PBT, and in
1995 it was the first to offer the capability of controlling bending tasks using software.
The PC400 is currentLy the most advanced and fLexibLe controlsystem on the market, and
offers countless advantages forsmaLland large series production processes.
Whether integrated into a network or as an individual work station, as a 30 version or with the addition of a mandrel, the new PC400 control system can be individually configured.
On the basis of a high-performance Windows PC with a state-of-the-art multi-touch dispLay, bending programs can be created, managed and controlled intuitively on the moveable
control terminaL, without the need for programming skills. Here the graphic display of the
programmed workpiece allows visual inspection of the programmed data. The hardware is
network-compatible and can easily be integrated ìnto the existing IT infrastructure.
Flexible, efficient and economical
The control programs generated allow up to 25 different segments to be arranged in any
sequence and bent in one or more passes. Subprograms for the creation of ellipses, handrails for spiral staircases, "Napoleon curves", S-curves or speciaL shapes are aLready available
as standard.
By means of precise control of the X and Y-axis, perfect transitions are achieved between
radii and straight sections. Non-conformances caused by the machine are excluded through
the continuous regulation of the axis positìon during bending, from individual parts to largescale series production. UnavoidabLe non-conformances in programmed data, whïch can result e.g. from different material elasticities, are corrected in the software by entering actual
manufactured values - consistent repeat precision and Low reject rates are thus ensured.
Open and expandable
With the PC400 control system, an open system has been created, such that the control
system can be indìviduaLLy expanded through the use of standard components.
The PC400 can be expanded at any time through the use of options such as the automatic
radius measuring system, Z-axes for bending into the third dimension, or the integration of
a mandrel bending unit with a feed system.
The control panel communicates with a Siemens S7-1200. This allows the programming of
other digitalLy controlled processes in the manufacturing sequence.

Benefíts
• Performance of the bending process in one or more passes - even where there are
different radii within a component
• Material catalogue / springback diagrams can be created for all profiles - up to and
including automatic radius measurement
• All software tools / subprograms included
• Assignment and access of PDF documentation (image/text) for creation of workpieces
using a corresponding program
• Optional interface with CAD software for the creation of programs based on design data
• Workplace-independent creation, management and data backup of programs by means
of network integration
• Direct support from PBT experts thanks to the remote maintenance capability

Mandrel bendíng devíce
1500 CNC-controlled
• Profile feed unit in 3, 4 0г 6 m version
• Pressing force approx. 1500 kg
• For bending hollow profiles in a single pass
• With controlled feed unit (booster)
• Guarantees zero-slip bending of even small radii in a single pass
• not shown: model 4000 with approx. 4000 kg
pressing force

Automatic radius measurement system
• Fully automatic radius measurement based on our PC400 control systems
• The pneumatic gauge heads can be positioned variably to the right and left of the bending rollers
• Measurement of one or more different radii in the same profile is possible
• Continuous and cyclical measurement of the actual manufactured radius possible
• After measurement of the actual manufactured radius, automatic correction takes place until nominal radius is reached
supporting roller controlled 3D bending/turning device
(Z-axis) for 3D bending manual or CNC-controlled
(right and/or left) for model PBT25
The controlled supporting roller additionally makes it possible to bend with a gradient. With the associated software, it is simple to programme and bend 30 elements.

Allows bending into the third dimension and additional turning of the profiles in two directions.

Arkus 12© Bendo©
up to profile diameter approx. 60 mm or
profile heíght 150 mm
up to profile diameter approx. 90 mm or
profile heíght 200 mm